TW462990B - Arc melting apparatus and method for cold iron source - Google Patents

Arc melting apparatus and method for cold iron source Download PDF

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Publication number
TW462990B
TW462990B TW88111916A TW88111916A TW462990B TW 462990 B TW462990 B TW 462990B TW 88111916 A TW88111916 A TW 88111916A TW 88111916 A TW88111916 A TW 88111916A TW 462990 B TW462990 B TW 462990B
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TW
Taiwan
Prior art keywords
melting
gas
iron
chamber
oxygen
Prior art date
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TW88111916A
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Chinese (zh)
Inventor
Hideaki Mizukami
Ryuji Yamaguchi
Takeshi Nakayama
Norio Ao
Toshimichi Maki
Original Assignee
Nippon Kokan Kk
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Priority claimed from JP05049998A external-priority patent/JP3521277B2/en
Priority claimed from JP15390898A external-priority patent/JPH11325735A/en
Priority claimed from JP18000098A external-priority patent/JP2000017319A/en
Priority claimed from JP18000398A external-priority patent/JPH11344287A/en
Priority claimed from JP9716099A external-priority patent/JP2000292064A/en
Application filed by Nippon Kokan Kk filed Critical Nippon Kokan Kk
Application granted granted Critical
Publication of TW462990B publication Critical patent/TW462990B/en

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  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

In comparison with a conventional scrap-preheating system by exhaust gas, the present invention provides an extra high-efficient arc melting method for cold iron source and apparatus thereof., which needs no travelling supply device for cold iron source, and which enables the subsequent charged iron source to be preheated. To attain this object, this arc melting apparatus provides a melting furnace for scrap, a preheating shaft directly connected with the upper part of one side of the melting furnace, an arc electrode for the melting scrap in the furnace, a bucket for the charged scrap into the preheating shaft in order to let the scrap exist continuously from the melting furnace to the preheating shaft, a tapping part which is protruded on the melting furnace and which has a tapping hole, and a tilting device for tilting the melting furnace toward the side of the tapping part. In the above mentioned method, the tapping part is located to the orthogonal direction toward the supplied scrap into the melting furnace. Furthermore, this apparatus holds a distance between the preheating furnace and the tapping part, to prevent the scrap discharge into the tapping side.

Description

經濟部智慧財產局員工消費合作社印製 4 629 9 0 A7 __B7_ 五、發明説明（ί) [技術領域] 本發明係關於冷鐵源之電弧熔解設備及熔解方法，其藉 電弧Κ良好效率使廢鐵、直接遛原鐵等之鐵源溶解者。 [背景技術] 日本專利特開平7-180975號公報（Κ下稱為"先前技術 1”）掲示一種廢鐵預熱裝置》其中在電弧爐之上部連接有 竪爐，而在豎爐安裝有一段或二段Μ上之可開閉之爐篦。 日本專利特開平7-332874號公報（Μ下稱為"先前技術 2”）揭示一種方法，其中與罨弧爐熔解室之上蓋連接地， 沿水平方向配置轉鼓型之第一預熱室*並且配置與第一預熱 室在底部連接之豎直型之第二預熱室，而在第二預熱室內 利用溶解室所產生之廢氣（排出氣體）來施行冷鐵源之預熱 後，用推進器將冷鐵源推入第一預熱室》然後藉由可旋轉 之第一預熱室將所預熱之冷鐵源裝入熔解室内。 再者，日本專利特公平6 -4 6 145號公報（Μ下稱為”先前 技術3”）揭示一種設備，其中設有與熔解室直接連接之豎 直型預熱室*每逢熔解，將一次加熱分之冷鐵源裝人熔解 室内及豎直型預熱室內，一邊利用廢氣來預熱該豎直型預 熱室內之冷鐵源，一邊使之Κ與熔化之冷鐵源相當之量自 由落下於熔解室内，如此使已裝入熔解室内及，豎直型預熱 室内之全部冷鐵源熔解。 依照Κ上之方法及裝置*自認其預熱效果較高者可達成 250〜270k Wh/t之單位用電量，然而上述先前技術1〜3有 下述問題。 本紙張尺度適用中國國家標準（CpS ) A4規格（2Ι0Χ297公釐) '~*4 (請先聞讀背面之注意事項再填寫本頁)Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 4 629 9 0 A7 __B7_ V. Description of the Invention (Technical Field) The present invention relates to an arc melting device and a melting method for a cold iron source. Those who dissolve iron sources such as iron and direct yakihara iron. [Background Art] Japanese Patent Laid-Open No. 7-180975 (hereinafter referred to as " Prior Art 1 ") shows a scrap iron preheating device in which a shaft furnace is connected to an upper part of an electric arc furnace, and a shaft furnace is installed in the shaft furnace. An openable and closable grate on one or two stages of M. Japanese Patent Laid-Open No. 7-332874 (hereinafter referred to as " Prior Art 2 ") discloses a method in which the upper part of the melting chamber of the arc furnace is connected to the ground, The first pre-heating chamber of the drum type is arranged horizontally, and the second pre-heating chamber of the vertical type connected to the first pre-heating chamber at the bottom is arranged, and the exhaust gas generated by the dissolution chamber is used in the second pre-heating chamber. (Exhaust gas) to perform preheating of the cold iron source, push the cold iron source into the first preheating chamber with a propeller ", and then load the preheated cold iron source through the rotatable first preheating chamber. Melt indoors. Furthermore, Japanese Patent Publication No. 6-4 6 145 (hereinafter referred to as "prior art 3") discloses a device including a vertical preheating chamber directly connected to the melting chamber. The cold iron source that is heated once is installed in the melting chamber and the vertical preheating chamber. While using the exhaust gas to preheat the cold iron source in the vertical preheating chamber, the amount of K is equivalent to that of the molten cold iron source. Freely fall in the melting chamber, so that all the cold iron sources already installed in the melting chamber and in the vertical preheating chamber are melted. According to the method and device on K, it is self-conceived that the unit with a higher preheating effect can achieve a unit power consumption of 250 ~ 270k Wh / t, but the above-mentioned prior arts 1 ~ 3 have the following problems. This paper size applies the Chinese National Standard (CpS) A4 specification (2Ι0 × 297 mm) '~ * 4 (Please read the precautions on the back before filling this page)

46299 0 Α7 Β7 五、發明説明（2 ) (請先閱讀背面之注$碩再填寫本頁) 依照先前技術1及先前技術2*由於將所預熱之冷鐵源裝 .入電弧爐熔解室内，需要冷鐵源蓮送用之裝置如推進器或 旋轉鼓筒等，因此在利用熔解室之廢氣來施行預熱之際， 其可達之預熱溫度有限制。即，使大量之煤焦等之碳材及 氧氣吹人熔解室，而利用大量產生之高溫排出氣體來施行 冷鐵源之預熱時，雖然其預熱溫度會上升而可提高預熱轶 果，但亦會發生上述運送用之裝置之熱變形，因此無法提 高廢氣之溫度。 與此相對地，在先前技術3之情況，由於其豎直型預熱 室與蜂解室直接連接，不必設置上逑之冷鐵源運送用之裝置 ，從而亦不會發生上述間題。然而，依照先前技術3，每 逢一次加熱分之熔鋼董之熔解，必需將預熱室内之冷鐵源 全部熔解，以便在預熱室内未留存冷鐵源之狀態下廊行出 鋼（熔鋼之出爐），因此無法施行下一次加熱之最初裝料冷 鐵源之預熱，即在廢氣之有效利用之観點上難謂符合要求。 [發明之揭示] 經濟部智慧財產易員工消費合作社印製 本發明之目的為提供冷鐵源之锺彍熔解設備*其不需要 特設冷鐵源往熔解室運送供給用之裝置，且有可能實現下 一次裝料之冷鐵源之預熱，而可達成由習知之利用廢氣來 預熱廢鐵之熔解設備所未能達成之極高效率者*更具體而 言，提供單位用電量低於250fclih/t之冷鐵源之電弧熔解設 備•又提供在不需要大規模之設備之下可防止有害成分之 產生之冷鐵源之熔解方法。為了達成上逑目的，本發明提 供Μ下所述之冷鐵源之罨弧熔解設備。 Ο 本紙乐尺度適用中國國家標準（CPS)Α4規格（210x297公釐） 462990 五、發明説明（3) 即，第一發明為冷鐵源之罨弧熔解設備包括： u)冷鐵源熔解用之熔解室； (請先閱讀背面之注意事項再填寫本頁) (b)直接與該熔解室之一側之上部連接之預熱塔，被用 K將該熔解室所產生之廢氣導入K預熱冷鐵源； (C)電弧電極*被用K使該熔解室内之冷鐵源熔解； (d) 冷鐵源供給裝置，藉此Μ可保持冷鐵源在該熔解室 内及該預熱塔内連續存在之狀態之方式將冷鐵源供給於該 預熱塔ί (e) 突設於該熔解室且具有出鋼口之出鋼部；Κ及 (f) 傾動裝置，被用Μ使該熔解室往該出鋼部方面傾動 者。 第二發明為如第一發明所載述之冷鐵源之電弧熔解設備 ，其中突設於上逑熔解室且具有出鋼口之該出鋼部之位置 為在方向上不同於將該預熱塔内之泠鐵源往該熔解室供給之 方向者。 經濟部智慧財產局員工消費合作社印製 第三發明為如第二發明所載述之冷鐵源之電弧熔解設備 ，其中上述出鋼部為朝著與冷鐵源之供給方向正交之方向 被設置者。 第四發明為如第一發明或第二發明所載逑之冷鐵源之電 弧熔解設備，其中為了在上述熔解室之傾動之際有可能阻 止冷鐵源注該出鋼部流出，在對該熔解室鄰接設置之該預 熱塔之位置與對該熔解室鄰接設置之出鋼部之位置之間具 有離間部者。 第五發明為如第四發明所載述之冷鐵源之電弧熔解設備 本紙張尺度適用中國國家標準（CpS ) Α4規格（210X297公釐） 46299 0 a? _B7 _ 五、發明説明（4) ，其中上述熔解室之設有該預熱塔之位置與設有該出鋼部 之位置之間之離間距離為長於從該預熱塔至該熔解室>乂安 息角所擴展之冷鐵源之水平距離者。 第六發明為如第一發明至第五發明所載述之冷鐵源之電 弧熔解設備，其中具有移動裝置*被用以在出鋼之際之該 熔解室之傾動時，追隨該熔解室内移動之熔鐵’使該電弧 電極移動者。 第ΐ發明為如第一發明至第六發明所載述之冷鐵源之電 弧熔解設備，其中又具有其他之電弧電極，被設在該出鋼 部者。 第八發明為如第一發明至第七發明所載述之冷锁源之電 弧熔解設，其中在上逑預熱塔之下方位置具有氧氣供給 装置者。 第九發明為如第一發明至第八發明所載述之冷鐵源之電 弧熔解設備，其中在上述熔解室之該預熱塔之下方位置具 有燃料供給裝置，被用以與氧氣一起將燃料供給於冷鐵源 者 經濟部智慧財產局員工消費合作社印製 電 之 源 鐵 冷 之 述 ΤΠ®Γ 所 明 發 九 第 至 明 發 1 第 如 為 明 發 第 供於 材給 碳供 將氣 Μ氧 用將 被 Μ , 用 置被 裝， 給置 供裝 材給 碳供 : 氣 有氣 具及 中Κ 其 Ϊ ， 室 備解 設熔 解該 熔於 弧給 之 源 鐵 冷 之 述 載 所 明 發 十 第 至 明 發 1 第 如 為 。 明 者發 室一 解十 熔第 該 而餘 給殘 供之 之後 體塔 氣熱 氣預 氧該 含過 藉通 Κ 體 用氣. 被燒 一 燃 備未 具之 中生 其產 * 所 備室 設解 解熔 熔述 彌上 電 使+ 家 國 國 中 用 S CN/ 一嘈 公 97 2 7 462990 B7 經濟部智慧財產局員工消費合作社印製 五、發明説明 ( 5) 1 1 氣 體 後 燃 燒 (aft e r b u r η i η ε) 之 後 燃 室 Μ 及 被 用 Η 泠 郤 1 I .該 後 m Am 室 所 排 出 之 廢 氣 之 冷 卻 部 t 且 具 有 被 用 使 該 後 燃 1 1 室 所 排 出 之 廢 氣 之 溫 度 變 為 指 定 溫 度 Μ 上 之 裝 置 者 〇 請 J 先 1 第 十 二 發 明 為 如 第 一 發 明 至 第 十 一 發 明 所 載 述 之 冷 鐵 源 閲 1 背 1 之 電 弧 熔 解 設 備 其 中 具 有 吸 附 劑 供 給 裝 置 被 用 Μ 將 吸 面 之 1 注 附 劑 供 給 於 藉 該 冷 卻 部 急 冷 之 廢 氣 者 〇 意 事 1 S 第 十 三 發 明 為 如 第 Μ· 發 明 至 第 十 二 發 明 所 載 述 之 冷 鐵 源 再 $ % Λ 之 電 弧 熔 解 設 備 其 中 在 ~* 從 上 述 熔 解 室 內 之 焙 鋼 液 面 位 本 頁 V j 1 置 至 該 預 熱 塔 上 部 之 冷 鐵 源 之 上 端 位 置 之 範 園 内 設 有 一 段 1 I 或 禝 數 段 之 氣 體 導 入 P 且 具 有 —* 裝 置 被 用 Μ 將 含 氧 氣 1 1 氣 體 從 此 等 氣 體 導 人 P 供 給 於 冷 鐵 源 裝 入 部 分 使 該 熔 1 1 者 訂 解 室 所 產 生 之 未 燃 燒 氣 體 —^ 部 分 或 全 部 燃 燒 〇 1 第 十 四 發 明 為 如 第 一 發 明 至 第 十 三 發 明 所 載 述 之 冷 鐡 源 1 1 之 電 强 熔 解 設 镅 其 中 具 有 氣 體 供 給 装 置 被 用 Μ 使 氧 氣 ! I 或 惰 性 氣 體 吹 入 該 熔 解 室 内 之 冷 鐵 源 與 熔 鋼 之 境 界 附 近 之 1 1 線 熔 鋼 中 者 〇 3 第 十 五 發 明 為 冷 鐵 源 之 電 弧 熔 解 方 法 包 括 下 逑 步 驟 f- t ί (1)將熔解室所產生之廢氣予Μ導入預熱室Μ預熱冷鐵 1_ 源 9 1 I (2)冰可保持冷鐵源在該預熱塔内及該熔解室內連壤存在 1 1 I 之 狀 態 之 方 式 將 冷 鐵 源 連 續 或 斷 孃 供 給 於 該 預 執 塔 之 同 時 1 1 * 藉 電 胍 電 極 使 該 熔 解 室 内 之 冷 鐵 源 熔 解 I 1 (3)當該熔解室内之熔鋼量積多時 使該熔解室傾動 f 1 1 (4)藉該電弧電極按- -定時間加熱熔鋼以使升溫 1 1 本紙張尺度適用中國國家福準（C^S ) A4規格（210X 297公釐） g 462990 A7 B7 五、發明説明（6) (5)在冷鐵源連續存在於該預熱塔内及該熔解室内之狀 態下，施行出鋼（熔鋼之出爐）者。 (請先聞讀背面之注$項再填寫本頁} 第十六發明為如第十五發明所載述之冷鐵源之電弧熔解 方法，其中使上述熔解室傾動，藉此使熔鋼與該熔解室内 之冷鐵源完全分離者。 第十t發明為如第十五發明或第十六發明所載述之冷鐵 源之電弧熔解方法，其中在上述熔解室之該預熱塔之下方 位置，將氧氣吹入冷鐵源，或將燃料與該氧氣茼時吹人冷 鐵源者。 第十八發明為如第十五發明至第十七發明所載逑之冷鐵 源之電弧熔解方法，其巾破氧氣K及如煤焦等碳材吹入上述 熔解室者。 第十九發明為如第十五發明至第十八發明所載述之冷鐵 源之電弧熔解方法*其中在熔解中及出鋼時使該熔解室内 及該預熱塔内留存有一次裝料量之40ΙΪΜ上之冷鐵源者。 經濟部智慧財產局員工消費合作社印製 第二十發明為如第十ir發明至第十九發明所載逑之冷鐵 源之電弧熔解方法，其中吹入預熱塔下部之該氧氣量與吹 入該熔解室之該氧氣量之合計為25Nm3 /噸Μ上者。 第二十一發明為如第十五發明至第二十發明所載述之冷 鐵源之電弧熔解方法，其中藉電弧加熱Κ及利用煤焦等輔 助熱源及氧氣供給於該熔解室内之手段使該熔解室内之冷 鐵源熔解，在熔解室所產生之未燃燒廢氣通過預熱塔後之 殘餘氣體未被排出於糸統外之情況下供給含氧氧簞體Μ使後 燃燒而使廢氣溫度變為指定溫度Μ上，然後將廢氣連續急 木紙張尺度適用中國國家標準（C.NS > Μ規格（210Χ297公釐） 462990 A7 B7 五、發明説明（7) 經濟部智慧財產局員工消費合作社印製 冷者。 第二十二發明為如第十五發明至第 冷鐵源之電弧熔解方法，其中藉電弧 輔助熱源及氧氣供姶於該熔解室内之 冷鐵源熔解，在一從該熔解室内之熔 塔上部之冷鐵源之上端位置之範圍內 氣體導人口，κ將含氧氣氣體從此等 鐵源裝入部分Μ使該熔解室所產生之 全部燃燒者。 第二十三發明為如第二十一發明或 之泠鐵源之電弧熔解方法*其中使該 後，對廢氣供給吸附劑者。 第二十四發明為如第二十一發明至 之冷鐵源之電弧熔解方法，其中以上 溫度為900 °CK上為特徵者。 第二十五發明為如第十五發明至第 鐵源之馑弧熔解方法，其中藉電弧加 助燃料及氧氣供給於該熔解室内之手 鐵源熔解，在一從該熔解室内之熔鋼 上部之冷鐵源之上端位置為止之範圍 置一段或複數段之氣體導入口 * Μ將 從該項氣體導入口供給於冷鐵源襞人 產生之未燃燒氣體燃燒，俾利用含氧 氣體燃燒所產生之廢氣在該預熱塔出 二十 發明所載述之 及利用煤焦等 該熔解室内之 鋼液面位置至該預熱 段或複數段之 入口供給於冷 加熱Κ 手段使 設置 fc=r VMT 氣體辱 未燃燒氣體一部分或 第二十二發明所載述 廢氣經過冷卻部急冷 第二十三發明所載述 述之後燃燒後之廢氣 二十發明所載述之冷 熱Μ及利用煤焦等輔 段使該熔解室內之冷 液面位置至該預熱塔 内所指定之位置上設 指定量之含氧氣氣體 部分Μ使該熔解室所 氣氣體使該項未燃燒 口附近之溫度可達指 (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） 10 4 62 99 0 a? B7 五、發明説明（8) 定溫度Μ上，然後使該廢氣經適與該預熱塔上部連接之冷 .卻部急冷者。 (請先聞讀背面之注意事項再填寫本頁) 第二十六發明為如第二十五發明所載述之冷鐵源之電弧 熔解方法，其中在該冷卻部急冷廢氣後，對廢氣供給吸附 劑者。 第二十t發明為如第二十五發明或第二十六發明所載述 之冷鐵源之電弧熔解方法，其中該項預熱塔出口附近之廢 氣溫度為9001CM上者。 第二十八發明為如第二十二發明至第二十七發明所載述 之冷鐵源之電弧熔解方法，其中為上述含氧氣氣體之全部 吹入量* K根據其氧氣濃度及流量所算出之氧氣供給量 Qin對於吹入熔解室内之氧氣量Q(Nm3 /分鐘）可成為以下 之（A)式所示之關係之方式設定者： 0.55Q^ Qin^ 0.9Q. . . . . .. (A) 經濟部智慧財產局員工消費合作社印製 第二十九發明為如第十五發明至第二十八發明所載逑之 冷鐵源之電弧熔解方法，其中藉電弧加熱以及利用煤焦等 輔肋熱源及氧氣供給於熔解室内之手段使該熔解室内之冷 鐵源熔解，此際將空氣導入此熔解室*而以C〇2/(COz + C0) = 0D時可成為0,3运OD^ 0, 7之方式在該熔解室内使未 燃燒氣體燃燒者。 第三十發明為使用如上述第一發明至第七發明所載之電 弧熔解設備之冷鐵源之電弧熔解方法。 [圖式之簡單說明] _第1圖為展示一涉及本發明一實施形態之電弧熔解設備 本紙張尺度適用中國國家摞準（CNS ) A4規格（210X297公嫠） ·丨j 46299 0 A7 B7 五、發明説明（3) 之斜視圖。 (請先聞讀背面之注意事項再填寫本頁) 第2圖為展示一渉及本發明一實啦形態之電弧蹲解設備 之平面圖。 第3圖為依第1圖之A-A·箭頭所視之斷面圖。 第4圖為依第1圖之B-B '箭頭所視之斷面圖。 第5圖為展示一涉及本發明一實施彤態之電弧鸿解設備 中之熔解爐傾動狀態之斷面圖。. 第6圖為展示第1圖至第5圖所示電弧蜱解設備之變型例 之斷面圖。 第7圖為使用本發明之裝置開工運轉時之氧氣單位用量（ 單位用氧量）與單位用電量之關係之圖。 第為展示一涉及本發明第二實施形態之在底部具有 傾斜部之電弧焯解設備之平面圖及斷面圖。 第9圖為展示一涉及本發明第二實_彤態之電弧熘解設 備之斷面圖。 第10圖為展示一涉及本發明第二實施形態之電弧熘解設 備之傾動狀態之斷面圖。 經濟部智慧財產局員工消費合作社印製 第圖為展示本發明之電弧焯解設備之變型例之斷面圖。 第12圖為展示一涉及本發明實施形態之具有氧氣供給裝 置之電弧熔解設備之斷面圖。 第13圖為展示一涉及本發明實施胗態之具有氧氣供給裝 置之電弧烤解設備之平面圖。 第14圖為展示一涉及本發明實施形態之設有氧氣供給裝 置及燃料供給裝置之電弧瘅解設備之要部斷面圖。 本紙張尺度適用中國國家樣準（ <：严）A4規格（210 X 297公釐） ！ ^ 462990 a? B7五、發明説明（10) 熱 預 對 否 是 照 依 之 態流 形放 施PC 實ta 明P-發ta 本之 及同 涉不 一 而 示氣 展氧 為給 圖供 15方 第下 塔 3¾ 出 或 流 放 出 圖 之 間 時 \1/ 鋼 體 氣 段 數 複 有 具 之 態 形 施 實 明 發 本 及 涉1 示 展 為 圖 6 1X 第 體 氣 段 數 複 .有 具 之 態 形 。 施 圖實 面明 斷發 之本 備及 設涉 解 一 熠示 弧展 電為 之圖 3 7 Π 1 人第 導 導 體 氣 段 二 有 具 之. 態 形 ο.施 圖實 面明 平發 之本 備及 設涉 解一 熔示 弧展 電為 之圖 ] 8 D11 入第 導 霞 氣 段 數 複 有 具 之 態 形 施 。 茛 圖明 面發 斷本 之及 備涉 設一 解示 熔展 弧為 電 _ 之19 口第 入 系 理 處 氣 。廢 圖有 面具 斷之 之態 分形 部施 一 實 之明 關發 有本 備 及 設涉 解一 熔示 弧展 電為 之圖 □20 入第 導 系 理 處 氣 廢 有 0 具 圖 之 面態 斷 形 之施 備實 設明 解發 熔本 弧及 電涉 之 一 口於 入關 導為 體圖 氣 2 及第 統 實 他 其 及 涉1 示 展 備 設。 解圖 鸩面 弧斷 電之 之備 口設 入解 導焯 體弧 氣電 段之 1 樣 及態 統施 (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 統施 糸實 理他 處其 氣及 廢涉 有一 具示 之展 態， 形備 施設 實解 明婢 發弧 本甯 及之 涉口 1 人 於導 關體 為氣 圖數 22複 第及 糸及 trrii 二户 理涉 處 一 氣一笊 廢展 有 * 具備 之設 態解 形蟪 施¾ 。 實 電 圖明之 面發室 斷本燃 之及後 備涉及 設 一M 解於口 鸡關入 弧為導 電圖體 之23氣 樣第、 態 統 縱 之 備 設 解 0 弧 0 電 圖之 面例 斷一 之態 備形 設施 解實 熔明 弧發 電本 之 ί不 樣展。 態為圖 施圖略 實24概 他第面 其 斷 準 標 國 ;國 |中 一用 適 尺 I張 紙 一本 一錢 3 462990 五、發明説明（11) 單 之 對 樣 量 態 入 施 吹 實 氣 他 氧 其 査 之 調 態 例 形 施 施 實 實 之 明 明。發 發圖本 本之及 於果涉 關結一 示 之 示 展響展 為影為 圖之圖 25量26 第g第 位 之 樣 態 施 實 他 其 之 態 肜 施 ΰ 實 圖明 略發 概本 面及 斷涉縱1 之示 備展 設為 解圖 熔27 弧第 電 單 對 量 人 吹 氣 氧 之 態 彤 施. 。 實 圖明 略發 概本 面及 斷涉 縱一 之示 備展 設為 解圔 饽28 弧第 電 配 率 配 周 銑 熔 C 之 圖態 之形 他施 其實 之明 果發 結本 查及 調涉 之 一 響示 影展 之為 量圖 電29 用第 位 圖 之 果 結 查 調 之 響 影 之 量 電 用 位 單 對 比 之 樣 態 施 實 他 其 之 態 形 施 實 明 發 本 及 涉1 示 展 為 圖 ο 3 第 圖 略 '概 面 平 之 備 設 解 。 鸿 圖弧 略電 概之 面示 斷所 縱圖 之30 備第 設為 解圖 焯31 弧第 電 涉 一 法 示方 展解 為熔 圖及 32爐 第解 熔 胞 實 明 發 本 及 樣 態 施 實 他 其 之 氬 (請先閱讀背面之注意事項再填寫本頁) 熔 弧 電 之 概 面 斷 縱 之 備 設 圖 經濟部智慧財產局員工消費合作社印製 中 之 樣 樣 態。態 施圖施 實略實 他概他 其面其 之斷之 態縱態 形之形 施備施 貿設實。 明 解明圖 發熔發略 本弧本概 及 電及面 涉之涉斷 1 態一縱 示狀示之 展 動展備 為傾為設 圖 爐圖解 33解34溶 第熔第弧 之 電 態 彤 佳 最 之 明 發 胞 實 樣 態 胞 實 之1 第 於 茲 明 發 本 及 涉1 示 展 為 圖 II- 第 第 據 根 明 說M HMH 力 圖 之 備 設 解 熔 弧 第電 至之 圖樣 L態 施 實 之 圖 頭 箭 圖 面 斷 之 視 所 頭 第箭 依B' 為B- 圖之 3 Ϊ FJ 圖 第 1 - 第 圖依 面為 平圔 其I為， 圖 2 圖 第面 ， 斷 圖之 視視 斜所 第 S N/ /IV 準 標 家 國 國 中 用. 逋 度 尺 1¾ ,紙 本 I釐 公 97 2 4 62 99 0 A7 _B7_ '_____ 五、發明説明（12) (請先閱讀背面之注意事項再填寫本頁) 。此電弧熔解設備具有：冷鐵源之電弧熔解用之熔解爐1 與該熔解爐之一側la之上部直接連接而向上方延伸之預 熱塔2:設於熔解爐1之出鋼部3。 如第3圖所示，在預熱塔2之上端設有與廢氣吸引系統連 接之排氣部2a。對此熔解爐1及預熱塔2，將作為冷鐵源之 廢鐵S裝人其內。 在預熱塔2之上方設有廢鐵裝料斗4，從該裝料斗4將廢 鐡S裝入預熱塔2内。再者，為了防止吊架（原料鐵源懸掛 於內壁上）現象，亦可Μ將碳源（例如煤焦等）裝入預熱塔2 。在此場合，關於廢鐵S從該裝料斗4之裝入，以開工蓮轉 中可保持騣鐵S在熔解爐1内及預熱塔2内連續存在之狀態 之方式將廢鐵S連續或斷鑛供給於預熱塔2。為此際之廢鐵 S之裝入，在實際開工蓮轉成續為基礎之Τ，根據預先設 定之方法予以施行亦可，或設置一可檢測出預熱塔2内之 竊鐵S量之感測器，以根據來自此感測器之信號，利用適 當控制機構來控制廢鐵S由裝料桶4投入之操作亦可。 預熱塔2之側壁之斜度最好能設在2.5〜7°之範圍内。 經濟部智慧財產局員工消費合作社印製 此一斜度若小於2 . 5。，則無法有效防止吊架現象之發生 。另若大於7° *預熱塔2内之賴鐵S装料量則減少而在預 熱時無法充分獲得廢鐵S之滞留時間，因此無法得到充分 之預熱效果。反之，（在設計上）若欲獲得同一程度之滯留 時間，預熱塔2之高度則變高，不得不提高建屋。此外， 預熱塔2之上部斷面横變小，致使可使用之廢鐵量受到限 制0 本紙張尺度適用中國國家標準（C,pS ) Α4規格（210X297公瘦） | ^ 46299 0 at B7 五、發明説明（〗3) (請先閱讀背面之注意事項再填寫本頁) 在熔解爐1之上部設有可開閉之爐蓋5*而Μ穿通該爐葚 5之方式，有一電弧電極6從熔解爐1之上方垂直插入魃蓋5 中。再者，在熔解爐1之爐底10中與電弧電極6相對之位置 設有爐底電極11。Μ此，利用電弧電極6所形成之電弧7之 作用，使廢鐵S熔解而成為熔鋼δ。在熔鋼8上形成有熔渣9 *電弧7乃形成於此熔渣9內。電弧電極6係由一支持構件 13所支持，且被設計為可藉傾動機構14施行傾動。 再者，在熔解爐1設有2支吹管12a、12b各Μ萁先端朝著 熔綱疲面插入其中，從吹管12a供給氧氣，而從吹管12b噴 射煤焦作為輔肋熱源。 經濟部智慧財產局員工消費合作社印製 預熱塔2內之鐵暦S從熔解爐1之預熱塔側la往其相反側 lb之方向被供給，而出鋼部3K可朝著與上述廢P S之供給 方向正交之方向之方式被突設於熔解爐1。再者，熔解爐1 被設計為，可利用未圖示之傾動機構之作用注出鋼部3方 面傾動。再者，熔解爐1之設有預熱塔2之部分與設有出鋼 部3之部分互相按一距雛a離閉（離開），Μ便在熔解爐1被 傾動時藉該部分之壁部來阻止廢鐵S流出於出鋼部3方面。 在此場合較佳的是，如第3圖所示，使該距雛a大於從預熱 塔2往熔解爐1按安,t备擴開之駿鐵S之距雛。由於如此設計 ，在熔解爐1傾動時可完全阻止廢鐵S往出鋼部3方面之流 出。 在出鋼部3之先端近旁之底部形成有出鋼口 15 (參照第4圖） ，.而為此出鋼口 15之開閉，設有可上下移動之塞子16。此 本紙張尺度適用中國國家標準（Cp > A4規格（210X 2.97公釐） 4 6 2 9 9 0 A7 _B7_ 五、發明説明（Η) 外，在出鋼部3之先端部側面設有渣門1 7。 在如此構成之熔解設備中使廢鐵熔解之際*首先將廢鐵 S裝入熔解爐1及預熱塔2，Μ形成廢鐵S連鑛存在於熔解爐 1内及預熱塔2內之狀態。 在此狀態下藉電弧電極6彩成電弧？，Μ使廢鐵S熔解。 此際，從吹管12a供給氣氣* Κ輔肋廢鐵之熔解。然後， 在爐内之熔鋼量積多時，將用作»助熟源之煤焦從吹管 12b嗔入溶渣中，Μ進入造渣操作，使電極6之先端淹沒於 熔渣9中，Μ便電弧7形成於熔渣9内。此項煤焦用作輔助 熱源者有肋於廢鐵S之熔解。 由上述廢鐵之熔解而產生廢氣，此醆氣通過預熱塔2及 排氣部2a後被排出*而由於此廢氣有熱量，塔2内之廢鐵S 被預熱。隨著熔解爐1內之廢鐵S之熔解*預熱塔2之廢鐵S 順次被供給於熔解爐1，因此，預熱塔2内之廢鐵S之上端 位置會下降。在此場合，以可保持廢鐵S連續存在於熔解 爐内及預熱塔內之狀態之方式，將廢鐵S從裝料4 4連續或 斷續供給於預熱塔2。藉此，可經常保持一定量以上之廢 鐵存在於熔解爐1内及預熱塔2内之狀態。為此際之廢鐵S 之裝人*如前所述，在實際開工運轉成績為基礎之下*根 據預先設定之方法予Μ施行亦可，或設置一可檢測出療熱 塔2内之廢鐵S量之感測器，K根據來自此感測器之信號來 控制廢鐵S由裝料桶4投入之操作亦·可。 當廢鐵S熔解下去時，在熔解爐1內形成廢鐵S (鐵源）與 熔鏑共存之狀態，熔鋼2之溫度低，例如為1540〜155〇υ 本紙琅尺度適用中國國家標準（cps) a4規格（2丨oxw?公釐) ' yj (請先閲讀背面之注意事項再填寫本頁) 訂 線_J· 經濟部智慧財產局員工消費合作社印製 462990 A7 B7 五、發明説明（15) *即與熔鋼之凝固溫度1 5 3 0 °C相比，僅有微小之增熱而已 .，如此則會發生出鋼時之出鋼口被堵塞等之不良情況。因 此，在本發明中，在出鋼之前，如第5圖所示，使熔解爐1 向出鋼郤3側傾動而繼續電弧加熱。在此場合，出鋼部3係 Μ可朝著與廢鐵S之供給方尚（廢鐵S往熔解爐1流入之方向 )直交之方向之方式被突設於熔解爐1者，並且熔解爐1之 設有預熟塔2之部分與設有出鋼部3之部分互相按一距離a 離間*而藉該部分之壁部來胆止廢鐵S流出於出鋼部3方面 ，因此*可縮小其流入出鋼部3方面之熔鋼與廢鐵S之接觸 面積。從而，可提高熔鋼之增熱（ΔΤ)，可避免待出鋼之 熔鋼溫度低之問題。由於設法使此項離間距離a大於從預 熱塔2往熔解爐1按安|、高擴開之廢鐵S之距離，可約略完全 Μ止廢鐵S往出鋼部3方面之流出*可進一步提高熔鋼之溫 (請先聞讀背面之注意事項再填寫本頁) -訂· 度 之 圖 5 第 至 移 貝 6 極 電 弧 電 時 men 傾 爐 解 熔 使 者 再 時 動 ，傾 置 6 位極 之電 示弧 所電 線使 4 HIX 構 AOS 機 動 傾 用 利 但第 ， 至 弧移 置 J ij- 給 供 效 有 法 無 而 極 Ba 弧 電 置 位 線 實 之 圔 經濟部智慧財產局員工消費合作社印製 示 所 圈 6 第 如 BE 種 一 M 替 代 法 方 ο S之 鋼動 熔i 於6f 給極 供電 效弧 有電 弧使 電此 將如 可將 之有 弧解 電焙 生使 另 、 來方 6 之 極述 部電所 鋼弧上 出電Κ 在用由 ， 利 置 設 極 電 爐 解 熔 使 在 而 際。鋼 之弧熔 動電之 Lli給聚 ί供積 效内 有爐 可在 - 而 時 ， 法展 方進 鐵 廢 與 鋼 熔 少 減 傾 後 熱 增 鋼 熔 使 熱 加 弧 爐電. 解之 熔間 使 時 > 定 時一 量藉 之而 定 ’ 指 積 所面 到觸 達 接 量 之 進 標 家 國 國 中 用 -適 度 尺 張 紙 本 I釐 公 97 8 46299 0 A7 B7 五、發明説明U 6) c請先聞讀背面之注意事項再填寫本頁) 一步使熔解爐1傾動而在保持廢鐵S連續存在於熔解爐1内 .及預熱塔2内之狀態下，使塞子16移離此時所塞住之出鋼 部（3)出鋼口 15而上升，Μ開放該出鋼口 15，而使相當於 —次裝料分之熔鋼從出鋼口 15出鋼於鍋式盛桶等。 在如此使廢鐵熔解之場合*由於其預熱塔2内未具備廢 鐵輸送供給用之設備如推進器、抓手等，與設有此等設備 之習知熔解設備相較，可增加氧氣使用量，而可提高廢氣 溫度。從而，有可能將廢鐵預熱至比習知熔解設備所達成 者為高之溫度。 再者，由於Μ經常可保持廢鐵S連簾存在於熔解爐1内及 預熱塔2内之狀態之方式將廢鐵S供給於預熱塔2，而在熔 解爐1内形成一次裝料量以上之熔鋼，且在其出鋼時亦使 廢鐵連續存在於熔解爐1内及預熱塔2內，駿氣之預熱廢鐵 之效率較高。在此場合，在熔解中及出鋼時，使一次裝料 量之40ΪΚΚ上之廢鐵連績存在於熔解爐1内及預熱塔2內時 ，該預熱效率則會變得極高。 經濟部智慧財產局員工消費合作社印製 再者，Κ良好之效率使廢鐵熔解之觀點上，最好能使用 煤焦等之輔助熱源，即將充作輔助熱源之煤焦從上述吹管 12b噴射之同時，從吹管12a供給氧氣時，可在熔解爐1内 產出C0，而產生熱量。在此場合，較佳的是，供給之氧氣 量為25Νιπ3 /t以上。藉此，可實現更高效率之廢鐵之熔解 。更佳的是*供給之氧氣量為40Nin3 /t。在第7圖展示， 在後逑實施態樣之熔解爐中，設定單位用氧量（氧氣單位 用蠆，Μ下皆同）為15〜45Nm3 /.t時之簞位用電量。如該 本紙乐尺度適用中國國家標準（CpS ) A4规格（210X 297公釐） 4 6299 0 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明説明 (17) 1 1 圖 所 示 9 隨 著 單 位 用 氧 量 之增 加， 單 位 用 電 量減 少 ， 尤其 1 ! I 在 單 位 用 氧 量 變 為 2 5 Ν π I3 /tK 上時 • * 單 位 用 電量 則 達 到 f 1 I 200kWh/t 下 ， 顯 示 極 低 之數 值。 然 後 在 單 位用 氧 量 變為 請 先 1 1 40Nm3 / 1 以 上 時 t 單 位 用 電量 則達 到 更 低 之 數值 〇 閲 1 I 月 面 1 I 如 上 所 述 9 依 照 上 述 實 施態 樣， 由 於 不 需 要設 置 如 推進 之 注 | 器 λ 抓 手 等 之 設 備 * 可 提 高廢 氣溫 度 i 且 由 於經 常 可 保持 意 事 1 項 廢 ΑίΒ. 鐵 S連績存在於熔解爐1 內及 預熱 塔 2内之狀態 ，廢鐵之 再 填 ,-k 熔 解 效 率 極 高 0 又 由 於 可 減少 廢鐵 S ( 鐵 源 )與由廢鐵之熔 寫 本 頁 ! 解 所 產 生 之 熔 鋼 之 接 觸 面 積， 可實 現 熔 鋼 之 增熱 而 可消 1 i 除 出 料 熔 鋼 之 溫 度 低 之 問 題。 1 1 其 次 關 於 第 二 之 質 施 態樣 ，根 據 第 8圖^ -第ίο圖加Μ 1 訂 說 明 第 8圖之（ a)展 示 -- 涉及 本發 明 第 二 實 施態 樣 之 電弧 1 I 熔 解 設 itt 備 之 平 面 tm 圆 而 (b )展示（a ) 之 X- X * 之 瞰面 圖 〇 1 1 在 本 實 胞 態 樣 中 如 第 8圖所示， 在熔解室中 與預熱 1 1 塔 相 對 應 之 部 分 及 與 離 間 部相 Mgj tffF 對懕 之 部 分 之 底部 一 部 分係 [ 埠 Μ 熔 解 室 中 設 有 出 鋼 部 3之部分lb之底部為最深位置部Id υ I > 而 可 從 該 最 深 位 置 部 起朝 著爐 之 傾 動 方 向變 高 之 方式 1 1 傾 斜 構 成 —>, 傾 斜 部 1 c 0 1 如 第 9圖及第10圖所示 使熔解爐1 傾 動 時 ，廢 鐵 與 熔鋼 1 1 8之接觸面積則從第9 圖 之 斜線 部8a 變 為 第 10 圖之 斜 線 部8b 1 I ， 而 由 於 傾 斜 部 1 c 之 存 在 ，使 廢鐵 與 熔 鋼 δ之接觸面積變 1 I 得 顯 著 小 於 第〜1 m Μ 施 態 樣 之場 合。· 從 而 9 與 第一 之 貫 施態 1 1 I 樣 相 較 * 可 提 高 熔 鋼 之 增 熱（Δ T)， 而更可有效消除出料 1 1 熔 鋼 之 溫 度 低 之 問 題 〇 如 此使 熔鋼 過 熱 後 9 與第 一 之 實施 1 1 本紙張尺度適用中國國家標準（CNS ) A4规格（210X297公釐） 46299 0 a? B7 五、發明説明（18) (請先閱讀背面之注意事項再填寫本頁) 態樣一樣，進一步使熔解爐1傾動而在保持廢鐵s連續存在 .於熔解爐1內及預熱塔2內之狀態下，使塞子16移離此時所 塞住之出鋼部（3)出鋼口 1 5而上升，K開放該出鋼口 1 5， 而使相當於一次裝料分之熔鋼從出鋼口 U出鋼於鍋式盛桶 等° . 又按》電弧熔解設備之構造亦可以設計如第11圖所示。 在第11圖之電弧熔解設備中，熔_爐（1)側壁之預熱塔2直 接下方之部分彤成朝著離間郤a之底部傾斜之傾斜部1 8。 由於如此設有傾斜部18 *坷追隨在廢鐵S與熔鋼8之接觸面 所進行之鼯鐵S之熔解，而更順滑施行從預熱塔2往離間部 a之廢鐵S之供給。 經濟部智慧財產局員工消費合作社印製 又按，本發明並未受到上述實施態樣之限制，而有可能 設計各種變型。例如，在上逑實施態樣中，Μ可朝著一與 廢鐵之流入方向（從熔解爐1之預熱塔側la往其相反側〗b流 入之方向）正交之方向之方式設置出鋼部3，但未必受限於 此，主要為廢鐵之流入方向Μ外之方向即可。若為廢鐵之 流入方1¾ Μ外之方商•則：7锊到防止廢鐵往出鋼部流出之效 果。 再者，雖然關於使用廢鐵為鐵源Μ製造熔鋼之例子做過 說明*但亦有可能應用直接遷原鐵等之其他鐵源，而亦有 可能應用於熔鋼Μ外之熔銑之製造設備，自不待言。在上 述之實施態樣中，關於為了廢鐵之熔解而使雷弧電極傾動 之例子做過說明*但未必限於傾動，而其他之移動機構亦 可。 本紙張尺度適用中國國家標準（C^S ) Α4規格（210Χ 297公釐） 462990 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明説明（1ί3) 再者，為放流（熔鋼之出魃）時使熔鋼與預熱廢鐵完全分 .離之裝置、方法 > 亦可採用如下述之實施措施。即，如第 32圖所示，隔著熔解室，在預熱室之相反側設置升溫室， 當熔解室内之熔鋼積聚量達到指定量時，使熔解室傾動* 而將熔鋼引導至升溫室，Μ使熔鋼與熔解室内之冷鐵源完 全分離之方法。另有一種方法*即如第1圖所示*將升溫 室設在與從預熱塔供給冷鐵源之方向不同之方向，當熔解 室內之熔鋼積聚量達到指定量時，使熔解室如第33圖所示 傾動，而將熔鋼引導至升溫室，Μ使熔鋼與熔解室內之冷 鐵源完全分離之方法。此外*有一種方法，即如第3 4圖所 示*在熔解室之預熱室側之底部設定一積升部，而在熔解 室內之熔鋼疲面到達積升部之前，使熔鋼液升溫而予以出 料之方法。在此•如下所逑，說明第32圖之符號。 802...熔解室* 803..,預熱室，80?a.，，熔解室電弧產 生用之上部電極，807b...升溫室電弧產生用之上部電極 ，810a及810b..,氧氣供給用之吹管，811a及811b.…煤焦 吹入用之裝置。 其次，如下所述，說明第33圔之符號。 1007a及1 007b,,,電弧產生用之電極* 1014,..熔渣 * 1014...熔鋼，1 022 出鋼口。 其次，如下所述，說明第34圖之符號。 9 0 2 c ...積升部，90 3 ...預熱室，905 .，.爐壁，906 .., 爐蓋^ 907,..爐底電極，908...上部電極》910.*.傾動裝 置，912...氧氣吹人用之吹管，913...碳材吹人用之吹管 民張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 22 (請先閲讀背面之注意事項再填寫本頁) 462990 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明説明（20) ，914...燃燒器，915...熔融金屬（熔鋼液）出口，917... 進料斗，918...冷鐵源，920...熔融渣液，921..,電弧。 再者*在第二之實施態樣中*雖然關於在熔解室中與預 熱塔相對應之部分及與離間部相對應之部分之底部一部分 彤成有傾斜部之場合做過說明，但上逑底部全部為斜面部 亦可。在上述實施態樣中*雖然關於使用廢鐵來製造熔鋼 之例子做過說明，但亦有可能應用於使用冷跣為鐵源以製 造熔銑之設備。 (實施態樣1) . 使用如第1圖至第5圔所示之直流電弧設備*其具有熔解 爐（長度8 . 5m *寬度3m *高度4π)及預熱塔（3inW X 3diD)互相 直接連接者，Μ將廢鐵150噸裝入該直流電弧設備之熔解 爐内及預熱塔內，在熔解爐藉28时石墨電極按最大600 V， 100kA之電源容量形成電弧，以使®鐵熔解。將水冷吹管 從設在爐側壁之作業口插人1由此按6000Νπι3 /小時之量 進給氧氣。當爐肉之熔銅量積多時，將煤焦按SOkg/分鐘 噴人熔渣中，Μ進入造渣操作，而使石墨電極之先端掩沒 於所形成之熔渣中。將此時之電壓設定為400V。當預熱塔 内之廢鐵隨著熔解爐内之廢鐵之熔解而下降時，藉廢鐵裝 料斗從預熱塔上部供給廢鐵，以保持預熱塔内之廢鐵高度 為一定之高度。 如此，在一使廢鐵連續存在於預熱塔内及熔解爐内之狀 態下進行熔解，而在熔解爐内產生之全熔鋼量達到180噸 之階段時，使熔解爐向出鋼部側按15度傾動，Μ減少熔鋼 (讀先閱讀背面之注意事項再填寫本頁) 私紙張尺度逍用中國國家標準（CNS ) Α4規格（2Ι0Χ297公釐） 3 4 6 2 9 9 0 a? _B7 _ 五、發明説明（2ί.) 與廢鐵之接觸面積而使熔鋼增熱’進一步使熔解爐傾動* .使60噸之熔鋼留存於爐内，而使相當於一次装科分之熔鋼 120噸出爐於鍋式盛插内。出爐時之熔鋼溫度為1575^。 熔鋼中之C濃度為0.U。 在120噸出鋼後，使焙解爐恢復原狀，一邊進行氧氣之 供紿及煤焦之噴射，一逢進行造渣操作以繼續熔解’而反 覆下述循環：即，當熔解爐内之熔鋼量再次達到180喂時 ，再次施行熔解爐之傾動从使熔鋼增熱’而出鋼120噸。 以平均而言，由tap-tap(放流-放流*或出鋼-出鋼’以下 皆同）約40分鐘得到熔鋼120噸。在氧氣量33Nm3 /t及單位 用焦童26kg/t之條件下，得到單位用電量l75kWh/t。 出爐之120噸熔鋼藉盛捅精煉爐（LF)升溫至1620Ό，Μ 經過連纊鐳造而製得175Χ 175mm之小鋼坯。LF之簞位用電 量平均為45ktfh/t。 另一方面，關於在使甩相同之裝置之下，不連壤供給廢 鐵，而一批一批進行分枇熔解之比較例（與先前技術3相同 )亦同樣求出單位用電童° 此等结果示於表1中。如表1所示，與比較例相較，在約 略相同之氧氣使钼量之下連續供給廢鐵之實施例1其簞位 用電量之減少量約略達140kWh/t之多，甚至包括LF所需之 單位用電量在内之合計單位用電量之減少量亦約略達 125kWh/t之多。再者，與先前技術所示之其他製法之報告 例比較結果，確認下述事赏：即與先前技術相較，本發明 之單位用電童少50kWh/tK上，在LFM前所需之單位用電 本紙張尺度通用中國國家標準（qs ) A4规格（210X297公& ) 24 (請先閲讀背面之注意事項再揉寫本頁)46299 0 Α7 Β7 V. Description of the invention (2) (Please read the note on the back before filling in this page) According to the previous technology 1 and the previous technology 2 * Because the preheated cold iron source is installed in the arc furnace melting chamber. Requires devices such as propellers or rotating drums used by the cold iron source lotus, so when using the exhaust gas from the melting chamber to perform preheating, the reachable preheating temperature is limited. That is, when a large amount of carbon materials such as coal coke and oxygen are blown into the melting chamber, and a large amount of high-temperature exhaust gas is used to perform the preheating of the cold iron source, although the preheating temperature will rise, the preheating effect will be improved. However, the thermal deformation of the above-mentioned transportation equipment also occurs, so the temperature of the exhaust gas cannot be increased. In contrast, in the case of the prior art 3, since the vertical preheating chamber is directly connected to the decomposing chamber, it is not necessary to install a device for transporting the cold iron source on the upper side, and the above-mentioned problem does not occur. However, according to the prior art 3, every time the melting of the molten steel director is heated, the cold iron source in the preheating room must be completely melted in order to produce steel (melt) in the state where no cold iron source is left in the preheating room. Steel comes out of the furnace), so the pre-heating of the original charging cold iron source for the next heating cannot be performed, that is, it can hardly be said that it meets the requirements on the effective use of exhaust gas. [Disclosure of Invention] Printed by the Ministry of Economic Affairs, Intellectual Property, Employees, and Consumer Cooperatives. The purpose of the present invention is to provide a cold iron source melting equipment. * It does not require a special cold iron source to transport and supply equipment to the melting chamber, and it is possible to achieve The preheating of the cold iron source for the next loading, which can achieve the extremely high efficiency that cannot be achieved by the conventional melting equipment using waste gas to preheat the scrap iron. * More specifically, the unit electricity consumption is less than 250fclih / t arc iron melting equipment for cold iron source • It also provides a melting method for cold iron source that can prevent the generation of harmful components without the need for large-scale equipment. In order to achieve the above objective, the present invention provides an arc melting device for a cold iron source as described below. 〇 This paper scale is applicable to the Chinese National Standard (CPS) A4 specification (210x297 mm) 462990 V. Description of the invention (3) That is, the first arc melting equipment for cold iron sources includes: u) Cold iron source melting Melting chamber; (Please read the precautions on the back before filling this page) (b) The preheating tower directly connected to the upper part of one side of the melting chamber is led to the preheating of the exhaust gas generated by the melting chamber with K Cold iron source; (C) Arc electrode * is used to dissolve the cold iron source in the melting chamber; (d) The cold iron source supply device, whereby M can keep the cold iron source in the melting chamber and the preheating tower. A cold iron source is supplied to the preheating tower in a continuously existing state. (E) A tapping portion protruding from the melting chamber and having a tap hole; κ and (f) a tilting device, which is used to melt the molten metal. Room tilted towards the tapping department. The second invention is the arc melting equipment of the cold iron source as described in the first invention, wherein the position of the tapping portion protruding from the melting chamber of the upper part and having a tapping hole is different in direction from the preheating The source of the Ling Tie source in the tower is the one supplied by the melting chamber. The third invention of the Intellectual Property Bureau employee consumption cooperative printed by the Ministry of Economic Affairs is the arc melting equipment of the cold iron source as described in the second invention, wherein the tapping part is turned in a direction orthogonal to the supply direction of the cold iron source. Setter. The fourth invention is the arc melting equipment of the cold iron source contained in the first invention or the second invention, in order to prevent the cold iron source from pouring out of the tapping part when the melting chamber is tilted, There is a gap between the position of the preheating tower adjacent to the melting chamber and the position of the tapping portion adjacent to the melting chamber. The fifth invention is the arc melting equipment of the cold iron source as described in the fourth invention. The paper size is applicable to the Chinese National Standard (CpS) A4 specification (210X297 mm) 46299 0 a? _B7 _ V. Description of the invention (4), The distance between the position of the melting chamber provided with the preheating tower and the position of the tapping part is longer than that of the cold iron source extended from the preheating tower to the melting chamber > Horizontal distance. The sixth invention is the arc melting equipment of the cold iron source as described in the first to fifth inventions, which has a moving device * which is used to follow the movement of the melting chamber when the melting chamber is tilted during tapping The molten iron 'moves the arc electrode. The first invention is an arc melting device for a cold iron source as described in the first to sixth inventions, which has other arc electrodes and is provided in the tapping section. The eighth invention is an arc melting device for a cold-lock source as described in the first to seventh inventions, in which an oxygen supply device is provided at a position below the upper preheating tower. The ninth invention is the arc melting equipment for a cold iron source as described in the first to eighth inventions, wherein a fuel supply device is provided below the preheating tower of the melting chamber, and is used to fuel the fuel together with oxygen. The source of cold iron produced by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs of the Ministry of Economics and the Cold Iron Source is printed by the source TII®Γ Mingfa 9th to Mingfa 1 The first is Mingfa No. 1 for materials, carbon, and gas Oxygen will be used by M, used to be installed, and used to supply materials to carbon supply: air and gas appliances and medium K and its ，, the room equipment is set up to melt the source iron which is melted in the arc to the source. Tenth to Mingfa 1 This is the case. After the Mingzha room was solved, it was necessary to give the remaining supply, and the tower gas was pre-oxygenated, and the borrowed K gas was used. The fire was burned, and the product was not produced. The room was set up. Dissolve the melting and melting and make use of electricity and electricity + S CN / Yi Jiao Gong 97 2 7 462990 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (5) 1 1 Gas after combustion (aft erbur η i η ε) After that, the combustion chamber M and the used Η 却 1 I. The cooling part t of the exhaust gas discharged from the subsequent m Am chamber and has a temperature used to make the exhaust gas discharged from the after combustion 1 1 temperature becomes The device at the specified temperature 〇 Please J first 1 The twelfth invention is the cold iron source as described in the first to eleventh inventions. The arc melting equipment with the back 1 and the adsorbent supply device is used. Supply 1 of the suction surface However, the rapid exhaust gas of the part is intended. The 1st thirteenth invention is the arc melting equipment of the cold iron source as described in the Mth invention to the twelfth invention. The arc melting equipment is in the ** from the above melting chamber. The molten steel level on this page V j 1 is set to the upper end of the cold iron source on the upper part of the preheating tower. There is a section of 1 I or several sections of gas introduction P, and the device with-* is used. The oxygen 1 1 gas is introduced from these gases to the cold iron source. The unburned gas generated by the melter 1 subscription room is partially or completely burned. The fourteenth invention is as the first invention. To the thirteenth invention, the electric melting device of the cold source 1 1 has a gas supply device which is used to make oxygen! I or an inert gas is blown into the cold iron source in the melting chamber. The 1 1 line of molten steel near the realm of molten steel. 03 The fifteenth invention is an arc melting method for a cold iron source. The method includes the following steps f- t. (1) The exhaust gas generated by the melting chamber is preheated to M Room M preheats cold iron 1_ source 9 1 I (2) ice can keep the cold iron source in the preheating tower and the 1 1 I state in the melting chamber. At the same time as the pre-handling tower 1 1 * the cold iron source in the melting chamber was melted by the guanidine electrode I 1 (3) the melting chamber was tilted when the amount of molten steel in the melting chamber was large f 1 1 (4) The arc electrode heats the molten steel at a fixed time to increase the temperature. 1 1 This paper size is applicable to China National Standard (C ^ S) A4 (210X 297 mm) g 462990 A7 B7 V. Description of the invention (6) (5 ) In the state where the cold iron source is continuously present in the preheating tower and the melting chamber, the steel producer (the furnace of the molten steel) is implemented. (Please read the note on the back before filling this page} The sixteenth invention is an arc melting method of a cold iron source as described in the fifteenth invention, in which the melting chamber is tilted, thereby melting the steel and The cold iron source in the melting chamber is completely separated. The tenth invention is the arc melting method of the cold iron source as described in the fifteenth or sixteenth invention, which is below the preheating tower of the melting chamber. Position, blowing oxygen into the cold iron source, or blowing fuel with the oxygen while blowing into the cold iron source. The eighteenth invention is the arc melting of the cold iron source as described in the fifteenth to seventeenth inventions. Method, in which oxygen K and carbon materials such as coal coke are blown into the melting chamber. The nineteenth invention is an arc melting method of a cold iron source as described in the fifteenth to eighteenth inventions * During melting and tapping, cold iron sources with a loading capacity of 40 ΙμΜ are left in the melting chamber and the preheating tower at one time. The 20th invention printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs is the tenth ir Arc melting method of chilled cold iron source contained in invention to nineteenth invention The sum of the amount of oxygen blown into the lower part of the preheating tower and the amount of oxygen blown into the melting chamber is 25Nm3 / ton. The twenty-first invention is as described in the fifteenth invention to the twentieth invention. An arc melting method for a cold iron source, in which arc heating is used, and auxiliary heat sources such as coal coke and oxygen are supplied to the melting chamber to melt the cold iron source in the melting chamber, and the unburned exhaust gas generated in the melting chamber passes through. The residual gas after the preheating tower is not exhausted outside the system and is supplied to the oxygen-containing oxygen carcass M for post-combustion to change the temperature of the exhaust gas to the specified temperature M, and then the exhaust gas is continuously applied to the paper. The Chinese standard is applicable. (C.NS > M specifications (210 × 297 mm) 462990 A7 B7 V. Description of the invention (7) Employees of the Intellectual Property Bureau of the Ministry of Economic Affairs' consumer cooperatives printed the refrigerator. The 22nd invention is the 15th invention to the 2nd invention An arc melting method for iron sources, in which a cold iron source supplied in the melting chamber by arc assisting a heat source and oxygen is melted, and the gas is conducted in a range from the upper end position of the cold iron source above the melting tower in the melting chamber. Mouth, κ loads oxygen-containing gas from these iron sources into part M to make all the burners generated in the melting chamber. The twenty-third invention is the arc melting method as in the twenty-first invention or the iron source * After that, the adsorbent is supplied to the exhaust gas. The twenty-fourth invention is an arc melting method of a cold iron source as in the twenty-first invention, wherein the above temperature is characterized by a temperature of 900 ° CK. The twenty-fifth invention is For example, the arc melting method of the fifteenth invention to the iron source, in which a hand iron source supplied in the melting chamber by arc fuel and oxygen is melted, and an upper end of a cold iron source from the upper part of molten steel in the melting chamber is melted. One or more gas inlets are provided in the range up to the position. Μ is supplied from this gas inlet to the cold iron source. The unburned gas generated by the human is burned. The exhaust gas generated by the combustion of oxygen-containing gas is used for preheating. Twenty inventions are described, and the inlet of the molten steel in the melting chamber to the preheating section or a plurality of sections is supplied to the cold heating KK means to set fc = r VMT gas to unburned gas. unit Or the exhaust gas described in the twenty-second invention is quenched by the cooling section. The exhaust gas after combustion described in the twenty-third invention is described in the twentieth invention. The hot and cold M described in the twenty-second invention and the auxiliary section such as coal coke are used to cool the melting chamber. From the liquid level to the designated position in the preheating tower, a specified amount of oxygen-containing gas is provided, so that the gas in the melting chamber makes the temperature near the unburned port reachable (please read the precautions on the back first) (Fill in this page again.) This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) 10 4 62 99 0 a? B7 V. Description of the invention (8) Set the exhaust gas at a temperature The upper part of the preheating tower is cold. (Please read the precautions on the back before filling this page) The twenty-sixth invention is an arc melting method of a cold iron source as described in the twenty-fifth invention, in which the exhaust gas is supplied after the cooling part is rapidly cooled. Adsorbents. The twentieth invention is the arc melting method of a cold iron source as described in the twenty-fifth invention or the twenty-sixth invention, wherein the temperature of the exhaust gas near the exit of the preheating tower is above 9001CM. The twenty-eighth invention is the arc melting method of the cold iron source as described in the twenty-second invention to the twenty-seventh invention, wherein the total blow-in amount of the above-mentioned oxygen-containing gas * K is based on its oxygen concentration and flow rate. The calculated oxygen supply amount Qin can be set as a method of the relationship shown by the following formula (A) to the oxygen amount Q (Nm3 / minute) blown into the melting chamber: 0.55Q ^ Qin ^ 0.9Q..... (A) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, the twenty-ninth invention is an arc melting method of the cold iron source contained in the fifteenth to twenty-eighth inventions, in which an electric arc is used to heat and use coal The coke and other auxiliary rib heat sources and oxygen are supplied to the melting chamber to melt the cold iron source in the melting chamber. At this time, air is introduced into the melting chamber * and can become 0 when C〇2 / (COz + C0) = 0D. 3 way of OD ^ 0, 7 to burn unburned gas in the melting chamber. A thirtieth invention is an arc melting method using a cold iron source of the arc melting equipment as described in the first to seventh inventions. [Brief description of the drawings] _Figure 1 shows an arc melting device related to an embodiment of the present invention. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297). 丨 j 46299 0 A7 B7 5 2. An oblique view of the description of the invention (3). (Please read the precautions on the back before filling out this page.) Figure 2 is a plan view showing the arc squat equipment of the present invention and a real form. Fig. 3 is a cross-sectional view taken along the line A-A · arrow in Fig. 1. Fig. 4 is a cross-sectional view taken along the arrow BB 'of Fig. 1. Fig. 5 is a cross-sectional view showing a tilting state of a melting furnace in an arc-dissolving apparatus for implementing the state of the invention. Fig. 6 is a sectional view showing a modified example of the arc ticking equipment shown in Figs. 1 to 5. Fig. 7 is a graph showing the relationship between the unit oxygen consumption (unit oxygen consumption) and the unit electricity consumption when the device of the present invention is started. The first is a plan view and a sectional view showing an arc decomposing device having a slanted portion at the bottom according to a second embodiment of the present invention. Fig. 9 is a cross-sectional view showing an arc plutonium dissolving device related to the second embodiment of the present invention. Fig. 10 is a cross-sectional view showing a tilting state of an arc decomposing device according to a second embodiment of the present invention. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs The figure below is a cross-sectional view showing a modified example of the arc decomposing device of the present invention. Fig. 12 is a sectional view showing an arc melting device having an oxygen supply device according to an embodiment of the present invention. Fig. 13 is a plan view showing an arc baking apparatus having an oxygen supply device according to the embodiment of the present invention. Fig. 14 is a sectional view showing a main part of an arc decomposing device provided with an oxygen supply device and a fuel supply device according to an embodiment of the present invention. This paper size applies to Chinese national standards ( <: Strict) A4 size (210 X 297 mm)! ^ 462990 a? B7 V. Explanation of the invention (10) Whether the heat pre-supplied is based on the release of the PC in accordance with the state of manipulation, the P-fat, the nature of the issue, and other related issues. When the Fang Di lower tower 3¾ out or in the exodus, \ 1 / the number of steel body gas segments has the shape of Shi Shiming, and the exhibition is shown in Figure 6 1X the number of body gas phase complexes. There is a state shape. The actual preparation of the figure is clearly shown and the figure of the arc conductor is shown in Figure 3 7 Π1. The conductor section of the first conductor has two forms. Prepare and set up a solution involving a fusion arc display of electricity] 8 D11 The number of the first-introduced Xia gas segments has multiple features. The figure of the buttercup face is broken and it is necessary to set up an explanation melting arc as the electricity_19th entry into the system. The scrapped picture has a masked state. The fractal section applies a clear picture of the facts. It has the equipment and a solution that shows a melting arc display. Figure 20 The gas waste in the guide system has 0 drawings. Broken-form equipment is provided to clearly explain the melting of arcs and electricity involved in the entry guide as a figure 2 and to unify other and related facilities. The solution to the problem of the arc power failure in the picture is set to the first phase of the arc power section of the deconstruction carcass (please read the precautions on the back before filling this page). There is a manifestation of the system's implementation of other rules and practices, and the preparation of the facility to explain and explain the development of the arc, and the one involved in the pass, the number of people in the pass is 22, and the number and trrii Two households are involved in one gas and one waste exhibition. The real electric diagram shows that the room is broken and the backup involves setting an M solution at the mouth of the chicken. The arc of the conductive pattern is the 23th sample, and the system solution is provided. 0 Arc 0 The first state of the state-of-the-art facility demonstrates the uniqueness of fused arc power generation. The state is shown in Figures and Figures 24, and the other is the standard country; the country | China One uses a suitable size of one sheet of paper, one book and one money 3 462990 V. Description of the invention (11) A sample of the sample amount The modal examples of real Qi and other investigations are very practical. Send out the copy of the book and show the result in the show related to the show. The picture is a picture of the picture. The amount of the picture is 25. The g-th position is the status of the other. The display preparation of the surface and the fault line 1 is set to solve the problem of melting and melting 27 arc of electricity. The actual picture shows the outline of the picture and the related information. The exhibition is set to explain the 28-arc electric distribution rate and the pattern of the week milling and melting C. The actual results are checked and adjusted. One of the related exhibitions is the Quantitative Picture 29. Use the results of the bitmap to check the effect of the Quantitative list of electricity. Use the form comparison to implement his form. Figure ο 3 Figure omission of the general solution. Hongtu Arc 30 shows the schematic diagram of the longitudinal drawing of the 30th diagram, which is set to be the solution diagram. 31 The arc diagram is related to the method, and the solution is shown to be the melting diagram and the 32th furnace solution solution. Really other argon (please read the precautions on the back before filling out this page) The outline of the fused arc power is shown in the printed form of the consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The status of the plan is practical, and the general situation of the situation is vertical. The status of the service is real. Clearly explain the map, melting, melting outline, and the electrical and surface involved in the state of a state of a vertical state of the exhibition, the development is shown in the diagram of the furnace design solution 33 solution 34 melting the arc of the state The best form of the real cell is shown in Figure 1 and the first part is shown in Figure II. Figure II- According to the roots of M HMH, the preparation of the melting arc is the first to the pattern of the L state. The first arrow of the real picture head arrow diagram is broken. The arrow B 'is 3 in B- diagram Ϊ FJ diagram 1-The diagram is flat in plane. Its I is, Figure 2 Observation No. SN // IV standard standard for domestic use. 逋 Rule 1¾, paper I centimeter 97 2 4 62 99 0 A7 _B7_ '_____ V. Description of the invention (12) (Please read the notes on the back first Fill out this page again). The arc melting equipment includes a melting furnace 1 for arc melting of a cold iron source and a preheating tower 2 directly connected to an upper part of one side la of the melting furnace and extending upward: a tapping part 3 provided in the melting furnace 1. As shown in Fig. 3, an exhaust portion 2a connected to the exhaust gas suction system is provided at the upper end of the preheating tower 2. For this purpose, the melting furnace 1 and the preheating tower 2 will be filled with scrap iron S as a cold iron source. A scrap iron hopper 4 is provided above the preheating tower 2, and the waste iron S is charged into the preheating tower 2 from the hopper 4. Furthermore, in order to prevent the phenomenon of the hanger (the raw iron source is suspended on the inner wall), a carbon source (such as coal coke, etc.) may be charged into the preheating tower 2. In this case, regarding the loading of the scrap iron S from the hopper 4, the scrap iron S can be continuously or continuously maintained in a state where the iron S is continuously present in the melting furnace 1 and the preheating tower 2 during the start-up lotus rotation. The broken ore is supplied to the preheating tower 2. For this purpose, the loading of scrap iron S can be converted into a continuous T based on the actual start-up lotus. It can also be implemented according to a preset method, or it can be set to detect the amount of iron theft S in the preheating tower 2. The sensor may also use an appropriate control mechanism to control the operation of inputting the scrap iron S from the charging barrel 4 according to a signal from the sensor. The inclination of the side wall of the preheating tower 2 can preferably be set within a range of 2.5 to 7 °. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, if this slope is less than 2.5. , It cannot effectively prevent the occurrence of the hanger phenomenon. If it is larger than 7 ° * the amount of lye iron S in the preheating tower 2 is reduced, and the residence time of the scrap iron S cannot be fully obtained during the preheating, so a sufficient preheating effect cannot be obtained. Conversely, if it is desired to obtain the same residence time (by design), the height of the preheating tower 2 becomes higher, and the house has to be raised. In addition, the cross section of the upper part of the preheating tower 2 becomes smaller, which limits the amount of scrap iron that can be used. 0 This paper size applies the Chinese national standard (C, pS) Α4 size (210X297 male thin) | ^ 46299 0 at B7 5 2. Description of the invention (〗 3) (Please read the precautions on the back before filling in this page) The upper part of the melting furnace 1 is provided with an openable and closable furnace cover 5 *, and M passes through the grate 5. There is an arc electrode 6 from The melting furnace 1 is inserted vertically above the lid 5. Further, a furnace bottom electrode 11 is provided in the furnace bottom 10 of the melting furnace 1 at a position opposed to the arc electrode 6. In this way, the action of the arc 7 formed by the arc electrode 6 is used to dissolve the scrap iron S to become molten steel δ. A slag 9 is formed on the molten steel 8. An arc 7 is formed in the slag 9. The arc electrode 6 is supported by a supporting member 13 and is designed to be tiltable by a tilting mechanism 14. Further, the melting furnace 1 is provided with two torches 12a and 12b, each of which has a distal end inserted into the melting surface, oxygen is supplied from the torch 12a, and coal coke is injected from the torch 12b as the auxiliary rib heat source. The iron 暦 S in the preheating tower 2 printed by the employee's consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs is supplied from the preheating tower side la of the melting furnace 1 to the opposite side lb, and the tapping department 3K can The supply direction of PS is orthogonal to the melting furnace 1. In addition, the melting furnace 1 is designed so that the steel part 3 can be tilted by the action of a tilting mechanism (not shown). Furthermore, the part of the melting furnace 1 provided with the preheating tower 2 and the part with the tapping part 3 are closed (leave) by a distance from each other, and M will borrow the wall of the part when the melting furnace 1 is tilted. To prevent scrap iron S from flowing out of the tapping section 3. In this case, as shown in FIG. 3, it is preferable that the distance a is larger than the distance S from the pre-heating tower 2 to the melting furnace 1 according to amps. Because of this design, when the melting furnace 1 is tilted, the outflow of the scrap iron S to the tapping part 3 can be completely prevented. A tap hole 15 is formed near the bottom of the tap end 3 (see FIG. 4), and for this purpose, a tap 16 is provided for opening and closing the tap hole 15. This paper size is in accordance with Chinese national standards (Cp > A4 size (210X 2.97 mm) 4 6 2 9 9 0 A7 _B7_ V. Description of the invention (Η) In addition, a slag door is provided on the side of the front end of the tapping part 3. 1 7. When melting the scrap iron in the melting equipment constructed in this way * Firstly, the scrap iron S is charged into the melting furnace 1 and the preheating tower 2, and M forms the scrap iron S and exists in the melting furnace 1 and the preheating tower. In this state, the arc electrode 6 is used to color the arc? In this state, the scrap iron S is melted. At this time, the gas * supplied from the blowing pipe 12a is melted. The melted iron is then melted in the furnace. Then, it is melted in the furnace. When there is a large amount of steel, the coal coke used as the »promoting source is poured into the molten slag from the blowing pipe 12b, and M enters the slagging operation, so that the tip of the electrode 6 is submerged in the slag 9, and the arc 7 is formed in the molten metal. In the slag 9. This coal coke is used as an auxiliary heat source for the melting of the waste iron S. The waste gas is generated by the melting of the above waste iron, and this radon is discharged after passing through the preheating tower 2 and the exhaust part 2a * and Due to the heat of this exhaust gas, the waste iron S in the tower 2 is preheated. As the waste iron S in the melting furnace 1 is melted * the waste iron S in the preheating tower 2 is sequentially supplied to the melting 1. Therefore, the position of the upper end of the scrap iron S in the preheating tower 2 will be lowered. In this case, the scrap iron S is removed from the melting iron and the preheating tower in such a manner as to maintain the state of the continuous existence of the scrap iron S in the melting furnace and the preheating tower. The charge 4 4 is continuously or intermittently supplied to the preheating tower 2. This can often maintain the state where a certain amount of scrap iron exists in the melting furnace 1 and the preheating tower 2. For this reason, the waste iron S Loading person * As mentioned before, based on the actual start-up operation results * It can be performed by M according to a preset method, or a sensor that can detect the amount of waste iron S in the thermal tower 2 can be set. K also controls the operation of the scrap iron S from the loading bucket 4 based on the signal from this sensor. When the scrap iron S is melted down, the scrap iron S (iron source) and the molten iron are formed in the melting furnace 1 In the state of coexistence, the temperature of molten steel 2 is low, for example, 1540 ~ 155〇υ The paper scale is applicable to the Chinese national standard (cps) a4 specification (2 丨 oxw? Mm) 'yj (Please read the precautions on the back before filling (This page) _J. Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 462990 A7 B7 V. Description of Invention (15) Compared with the solidification temperature of steel of 1530 ° C, there is only a slight increase in heat. In this way, problems such as clogging of the tap hole during tapping will occur. Therefore, in the present invention, Previously, as shown in FIG. 5, the melting furnace 1 was tilted toward the tapping 3 side to continue the arc heating. In this case, the tapping section 3 series M can be directed toward the supplier of the scrap iron S (waste iron S The direction of the inflow to the melting furnace 1) is orthogonal to the direction of the melting furnace 1, and the part of the melting furnace 1 provided with the pre-cooking tower 2 and the part with the tapping part 3 are separated by a distance a from each other. * And the wall of this part is used to prevent the waste iron S from flowing out of the tapping part 3, so * the contact area between the molten steel flowing into the tapping part 3 and the scrap iron S can be reduced. Therefore, the heat increase (ΔT) of the molten steel can be increased, and the problem of low molten steel temperature to be tapped can be avoided. As a result of trying to make this distance a greater than the distance from the preheating tower 2 to the melting furnace 1 according to the safe expansion of the scrap iron S, the outflow of the scrap iron S to the tapping section 3 can be almost completely prevented. Further increase the temperature of the molten steel (please read the precautions on the back before filling out this page)-order · Figure 5 of the degree to move the 6-pole arc men's tilting furnace melting furnace, then move it, and place 6 The electric wire of the electric arc display makes the 4 HIX structure AOS maneuverable, but the electric arc is shifted to J ij- For the effective supply, but the extremely effective electric arc is set. The Ministry of Economic Affairs Intellectual Property Bureau employees consume The cooperative prints the circle 6 The first type is BE, the M is an alternative method, the steel is fused at 6f, and the power is supplied to the arc. There is an arc to cause electricity. The electric arc on the steel arc of the pole electric power station of Party 6 is used, and the electric furnace is set up to dissolve it. Lli for steel arc fusion power supply is available in the built-in furnace. At the same time, when the French party enters the iron waste and the steel melts, the steel is melted and the heat is increased to make the thermal arc furnace electric. Time to use > Timing depends on the amount 'refers to the use of the product to reach the amount of access to the bidding home country-moderate paper sheets I centimeter 97 8 46299 0 A7 B7 V. Description of the invention U 6 ) c Please read the precautions on the back before filling in this page) Step the tilting furnace 1 and keep the scrap iron S continuously in the melting furnace 1 and keep the plug 16 in the preheating tower 2 state. At this time, the tapped portion (3) of the tapped portion 15 is lifted and raised, and M opens the tapped portion 15 so that the molten steel equivalent to the secondary charge is tapped out of the tapped portion 15 in a pan-type pan. Buckets and so on. In the case where the scrap iron is melted in this way * Because the preheating tower 2 does not have scrap iron transportation and supply equipment such as propellers, grippers, etc., compared with the conventional melting equipment provided with such equipment, oxygen can be increased The amount used can increase the temperature of the exhaust gas. Thus, it is possible to preheat the scrap iron to a temperature higher than that achieved by the conventional melting equipment. Furthermore, since M can often maintain the state of the scrap iron S curtains in the melting furnace 1 and the preheating tower 2 to supply the scrap iron S to the preheating tower 2, a primary charge is formed in the melting furnace 1. More than the amount of molten steel, and when it is tapped, the scrap iron is continuously present in the melting furnace 1 and the preheating tower 2. The efficiency of Junqi's preheating scrap iron is higher. In this case, the preheating efficiency becomes extremely high when the scrap iron of 40ΪKK is loaded in the melting furnace 1 and the preheating tower 2 during melting and tapping. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. From the standpoint of good efficiency in melting scrap iron, it is better to use auxiliary heat sources such as coal coke. At the same time, when oxygen is supplied from the blowing pipe 12a, C0 can be produced in the melting furnace 1 to generate heat. In this case, it is preferable that the amount of oxygen supplied is 25 Nm 3 / t or more. With this, melting of scrap iron with higher efficiency can be realized. Even better is the amount of oxygen supplied is 40Nin3 / t. As shown in Fig. 7, in the melting furnace in the subsequent embodiment, the oxygen consumption per unit (the oxygen unit consumption is the same for M) is 15 to 45 Nm3 / .t. For example, this paper scale applies the Chinese National Standard (CpS) A4 specification (210X 297 mm) 4 6299 0 A7 B7 Printed by the Employee Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (17) 1 1 When the unit oxygen consumption increases, the unit electricity consumption decreases, especially when the unit oxygen consumption becomes 2 5 Ν π I3 / tK • * The unit electricity consumption reaches f 1 I 200kWh / t, the display pole Low value. Then when the unit oxygen consumption becomes 1 1 40Nm3 / 1 or more, the unit electricity consumption will reach a lower value. 0 Read 1 I Moon face 1 I As mentioned above 9 According to the above embodiment, there is no need to set such as Note for advancement | Equipment λ Equipment such as gripper * It can raise the exhaust gas temperature i and because it can often keep one item of waste ΑίΒ. Iron S is continuously in the state of melting furnace 1 and preheating tower 2, waste iron Re-filling, -k melting efficiency is very high 0 and because the scrap iron S (iron source) can be reduced from the scrap iron melting page! The molten steel contact area generated by the solution can achieve the heating of the molten steel and It can eliminate the problem of low temperature of the molten steel. 1 1 Secondly, regarding the second quality application state, according to Figure 8 ^-Figure ίο plus M 1 Order the description of Figure 8 (a)-the arc 1 I related to the second embodiment of the present invention Itt preparation plane tm is round and (b) shows the X-X * bird's-eye view of (a) 〇1 1 In the real state, as shown in Figure 8, in the melting chamber and preheated 1 1 tower The bottom part of the corresponding part and the part facing Mgj tffF of the interphase part is [the bottom part of the part lb provided with the tapping part 3 in the melting chamber is the deepest position part Id υ I > The way in which the position part becomes higher toward the furnace tilting direction 1 1 Inclined structure— >, Inclined part 1 c 0 1 When the melting furnace 1 is tilted as shown in Figs. 9 and 10, scrap iron and molten steel 1 The contact area of 18 is changed from the oblique line portion 8a in FIG. 9 to the oblique line portion 8b 1 I in FIG. 10, and the scrap iron and molten steel are caused by the existence of the inclined portion 1c. The contact area of δ becomes 1 I, which is significantly smaller than that in the first ~ 1 m Μ application state. · Compared with the first consistent state of 1 1 I, 9 can increase the heat increase (Δ T) of the molten steel, and can effectively eliminate the problem of the low temperature of the discharged 1 1 molten steel. This makes the molten steel After overheating 9 and the first implementation 1 1 This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) 46299 0 a? B7 V. Description of the invention (18) (Please read the precautions on the back before filling in this Page) In the same way, the melting furnace 1 is further tilted to keep the scrap iron s continuously present. In the state of the melting furnace 1 and the preheating tower 2, the plug 16 is moved away from the tapping part which is now blocked. (3) The tap opening 15 rises, and K opens the tap opening 15 so that the molten steel equivalent to one-time charge can be tapped from the tap opening U to the pan-type ladle, and so on. The structure of the melting equipment can also be designed as shown in Figure 11. In the arc melting equipment of Fig. 11, a part of the preheating tower 2 on the side wall of the melting furnace (1) is directly formed into an inclined portion 18 which is inclined toward the bottom of the space a. As a result, the inclined portion 18 * is provided to follow the melting of the iron S at the contact surface between the scrap iron S and the molten steel 8, and the supply of the waste iron S from the preheating tower 2 to the intervening portion a is performed more smoothly. . Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. According to the present invention, the present invention is not limited by the above-mentioned implementation mode, and various modifications may be designed. For example, in the above embodiment, M can be set in a direction orthogonal to the inflow direction of the scrap iron (the direction from the preheating tower side la of the melting furnace 1 to the opposite side). The steel portion 3 is not necessarily limited to this, and may be mainly a direction other than the inflow direction M of the scrap iron. If it is a party outside the inflow side of scrap iron 1¾ M • Then: 7 锊 The effect of preventing scrap iron from flowing out of the tapping part. In addition, although the example of using molten iron to make molten steel for iron source M has been explained *, it is also possible to apply other iron sources such as direct removal of original iron, and it may also be used for fusion milling outside molten steel M Needless to say, manufacturing equipment. In the above-mentioned embodiment, the example of tilting the lightning arc electrode for the melting of scrap iron has been explained *, but it is not necessarily limited to tilting, and other moving mechanisms are also possible. This paper size applies the Chinese national standard (C ^ S) A4 specification (210 × 297 mm) 462990 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (1ί3) Furthermore,魃) The device and method for separating the molten steel from the preheated scrap iron at all times. The following implementation measures can also be adopted. That is, as shown in FIG. 32, a rising greenhouse is provided on the opposite side of the preheating chamber across the melting chamber. When the accumulation amount of molten steel in the melting chamber reaches a specified amount, the melting chamber is tilted * to guide the molten steel to a temperature rise Chamber, the method of completely separating the molten steel from the cold iron source in the melting chamber. Another method is to set up the greenhouse in a direction different from the direction in which the cold iron source is supplied from the preheating tower as shown in Figure 1. When the amount of molten steel accumulated in the melting chamber reaches the specified amount, make the melting chamber as The method shown in Fig. 33 is to tilt the molten steel and guide it to the greenhouse, so that the molten steel is completely separated from the cold iron source in the melting chamber. In addition, * there is a method, as shown in Figure 34, * an accumulation section is set at the bottom of the preheating chamber side of the melting chamber, and the molten steel is melted before the fatigue surface of the molten steel in the melting chamber reaches the accumulation section. Method of heating and discharging. Here, the symbols in Figure 32 are explained below. 802 ... melting chamber * 803 .., preheating chamber, 80? A., Upper electrode for melting chamber arc generation, 807b ... upper electrode for greenhouse arc generation, 810a and 810b .., oxygen Blowing pipe for supply, 811a and 811b ... Equipment for blowing coal char. Next, the 33rd symbol will be described below. 1007a and 1 007b ,,, electrodes for arc generation * 1014, .. slag * 1014 ... molten steel, 1 022 steel outlet. Next, the symbols in FIG. 34 will be described below. 9 0 2 c ... Jack-up section, 90 3 ... Preheating chamber, 905 .., furnace wall, 906 .., furnace cover ^ 907, .. bottom electrode, 908 ... upper electrode》 910 . *. Tilting device, 912 ... Blowing tube for oxygen blowing, 913 ... Blowing tube for carbon blowing. The standard of Chinese standard (CNS) A4 (210X297 mm) 22 (Please read first Note on the back, please fill out this page) 462990 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs V. Invention Description (20), 914 ... burner, 915 ... molten metal (steel molten steel) export, 917 ... feed hopper, 918 ... cold iron source, 920 ... molten slag, 921 .., arc. Furthermore, in the second embodiment *, although the description has been made regarding the case where the part corresponding to the preheating tower in the melting chamber and the bottom part of the part corresponding to the compartment is formed with an inclined part, the above逑 Bottom is all oblique. In the above-mentioned embodiment * Although the example of using molten iron to make molten steel has been described, it may also be applied to equipment that uses cold heading as an iron source to make fusion milling. (Implementation mode 1). Use the DC arc equipment shown in Figures 1 to 5 圔 * which has a melting furnace (length 8.5m * width 3m * height 4π) and a preheating tower (3inW X 3diD) directly to each other The connector, M put 150 tons of scrap iron into the melting furnace and preheating tower of the DC arc equipment. When the melting furnace borrowed 28, the graphite electrode formed an arc with a maximum power supply capacity of 600 V and 100kA to melt the iron. . The water-cooled blow pipe was inserted into the working port 1 provided on the side wall of the furnace, thereby feeding oxygen at a rate of 6000 nm / hour. When there is a large amount of molten copper in the furnace meat, coal coke is sprayed into the slag at SOkg / minute, and M enters the slag making operation, so that the tip of the graphite electrode is hidden in the formed slag. The voltage at this time was set to 400V. When the scrap iron in the preheating tower decreases with the melting of the scrap iron in the melting furnace, the scrap iron is supplied from the upper part of the preheating tower by the scrap iron hopper to keep the scrap iron height in the preheating tower to a certain height . In this way, when the scrap iron is continuously present in the preheating tower and the melting furnace, and the total amount of molten steel generated in the melting furnace reaches 180 tons, the melting furnace is moved to the tapping part side. Tilt at 15 degrees, Μ reduce molten steel (read the precautions on the back and then fill out this page) Private paper standards use the Chinese National Standard (CNS) Α4 specifications (2Ι ×× 297 mm) 3 4 6 2 9 9 0 a? _B7 _ V. Description of the invention (2ί.) The area of contact with scrap iron to heat the molten steel 'further tilts the melting furnace *. 60 tons of molten steel is kept in the furnace, which is equivalent to melting in one load. 120 tons of steel was baked in a pot-type insert. The temperature of the molten steel when it was released was 1575 ^. The C concentration in the molten steel is 0. U. After 120 tons of steel is tapped, the melting furnace is restored to its original state, while the supply of oxygen and the injection of coal coke are carried out, and the slagging operation is continued to continue the melting ', and the following cycle is repeated: that is, when the melting in the melting furnace When the amount of steel reaches 180 again, the tilting of the melting furnace is performed again to increase the heat of the molten steel and produce 120 tons of steel. On average, 120 tons of molten steel is obtained in about 40 minutes from tap-tap (drain-drain * or tapping-tap '). Under the conditions of an oxygen amount of 33Nm3 / t and a unit coke boy of 26kg / t, the unit electricity consumption is 175kWh / t. The 120 tons of molten steel that was released was heated to 1620 ° F by the Shengyang Refining Furnace (LF), and M was made by Lienyang radium to obtain a small billet of 175 × 175mm. The average power consumption of LF is 45ktfh / t. On the other hand, the comparative example (same as in the prior art 3) in which scrap iron is supplied in batches without batching under the same device is used to obtain the unit electricity child. The results are shown in Table 1. As shown in Table 1, compared with the comparative example, Example 1 which continuously supplies scrap iron under the same amount of molybdenum as the amount of molybdenum reduces the power consumption of the niches by approximately 140 kWh / t, even including LF. The reduction of the total unit power consumption including the required unit power consumption is also approximately as much as 125kWh / t. In addition, compared with the results of other examples of manufacturing methods shown in the prior art, the following rewards were confirmed: Compared with the prior art, the unit of the present invention uses 50kWh / tK less electricity units, and the unit required before LFM The size of the paper used for the electricity is generally the Chinese national standard (qs) A4 specification (210X297 male &) 24 (Please read the precautions on the back before writing this page)

J -訂 -線ο.· 經濟部智慧財產局員工消費合作社印製 46299 0 A7 __. _B7_ 五、發明説明（22) 量較低，而本實施例之廢鐵預熱效果非常高。 (實施態樣2) (請先閲讀背面之注意事項再填寫本頁) 在上述熔解爐中，除了設定氧氣量為45Hm3 /t及單位用 焦量為36kg/t之外，均K與實施例1相同之方法實施熔解 。其結果亦示於表1中。本例之單位用電量為極低之135kWh /t，而K tap-tap約37分鐘得到平均溫度1575 t；之熔鋼。 (實施態樣3) 使用一種具有互相直接連接之熔解爐（長度8. 5m，寬度 3ιη，高度4m)及預熱塔（3bWx3bD)之直流電弧設備，如第8 圖、第9圖、K及第10圖所示，在其熔解爐中，與預熱塔 相對應之部分及與離間部相對應之部分之底面有一半成為 例如傾斜15度之傾斜面者，Μ與上述實施例1相同之條件 實施熔解。 其結果如表1所示，本例之出鋼溫度為1600Τ：，顯示高 於實施例1、實施例2之溫度。再者，其在單位用氧暈 33Nms /t及單位用焦量26kg/t之條件下得到單位用電量 188kWh/t，並得到LF之單位用電量平均30kWh/t。 經濟部智慧財產局員工消费合作社印製 (實胞態樣4) 在上述熔解爐中，除了設定單位用氧量為4Hm3 /t及單 位用焦量為3&kg/t之外，均Μ與實施例3相同之方法實施 熔解。其结果亦示於表1中。本例之單位用電量為極低之 148klih/t，而Mtap-tap約37分鐘得到平均溫度1600Τ：之 熔鋼。 表1 民張尺度適用中國國家標準（C.NS ) A4規格（210 X 297公釐） 2 ^ 46299 0 A7 __'_B7 五、發明説明（23) 實施例1 實施例2 實施例3 實施例4 比較例 操作方法 本發明 本發明 本發明 本發明 分批^ 單位用氧量(Nm3/t) 33 45 33 45 33 一^---- 單位用焦量(kg/1) 26 36 26 36 出鋼溫度(°C) 1575 1575 1600 1600 162〇_ 單位用電量(kWh/1) 175 135 188 148 LF之單位用電量(kWh/1) 45 45 35 35 合計單位用電量(kWh/1) 220 180 223 183 (锖先S讀背齑之注WW再填寫本 經濟部智慧財產局員工消費合作社印製 其 次Γ 關 於本發明之其他實施態樣> 在參照 第12 Μ 垄 第 15 1圖 之下 加 Μ說明。第12圖為展示一涉 及本發 明一 實 m 形 態 之 電弧 熔 解設備之斷面圖。此電弧熔 解設備 具有 • * 冷 m 源 之 電弧 熔 解用之熔解爐101;直接與該熔解爐之上 接 之 預熱 塔 102。在預熱塔102之上端設 有與駿 氣吸 引 % 統 連 接 之排 氣 部102a。對此熔解爐101及預熱塔102, 將 作 為 冷 鐵 源之 廢 鐵103裝人其内。 在 熔解 爐 1 0 1設有2支吹管112a、112b各Μ其先端朝箸修 解 爐 内之 熔 鋼面插入其中，從吹管112a 供給氣 氣， 而 從 吹 管 112b 噴 射 煤焦以作為輔助熱源。又按 ，為輔 助熱 源 9 亦 可 K 使用 煤 焦以外之碳材。 在 熔解 爐 101中，與直接連接有預熱塔1P2之 一側 不 0 之 部 分 設有 突 出部101a，而在此突出部l〇la之底 都形 成 有 出 鋼 口 114 * 在其側端設有渣門115。又按 ，出鋼 口亦 >λ 設 本紙張尺度適用中國國家標準（CNS ) A4规格（210 X 297公釐） 4 6299 0 五、發明説明（24) 在與渣門115相同之周面。再者，在突出部i〇ia設有從其 .上方插入之燃燒器113，俾能使出爐熔鋼之溫度上升。在 此場合，亦可Μ設置電弧電極等之其他加熱機構Μ代替燃 燒器113。 預熱塔102之側壁如圖12所示，具有往下方擴開之斜度 。由於設有此種斜度，可將高溫廢鐵安定供給於熔解爐内 之熔鋼108中。在未形成有斜度之場合*廢鐵103則被預熱 塔102之壁部拘束，難於自然落下，而成為發生吊架現象 之原因。 在熔解爐101中之預熱塔102之下方位置配置有氧氣供給 裝置116，Κ將氧氣供給於該下方所存在之廢鐵〗0.3。如鬮 13所示，此項氧氣供給裝置116之設置數目為6個，由此將 氧氣供給於廢鐵103時，有可能熔解切斷廢鐵1〇3。如此熔 解切斷廢鐵103時，可更有效防止吊架現象。 又按，在從氧氣供給裝置116供給氧氣之場合，〇2氣體 單獨供給或與其他氣體混合供給均可。再者，主要有可能 燃燒，則含氧化合物氣體亦可。 再者，如圖14所示，將供給燃料（如石油、瓦斯等）之燃 科供給裝置117與氧氣供給裝置11 6—起設置亦可。如此供 給燃料時，可更容易熔解切斷廢鐵1 0 3。 在如此構成之熔解設備中使廢鐵熔解之際*首先將廢鐵 103裝入熔解爐101及蕷熱塔102, Κ形成廢鐵103連續存在 於熔解爐101内及預熱塔102内之狀態。 .在此狀態下藉電弧電極106形成電弧107，Κ使廢鐵1〇3 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） <請先聞讀背面之注意事項再填寫本頁) 訂 經濟部智慧財產局員工消費合作社印製 46299 0 a? __Β7_ 五、發明説明（25) 熔解之同時 > 將氧氣從氧氣供給装置116供給於廢鐵103, .以熔解切斷廢鐵103。 (請先鬩讀背面之注意事項再填寫本頁) 又按，在設有燃料供給裝置117之場合，與氧氣一起供 給如石油等之燃料。如此將氧氣供給於廢鐵103之場合， 由於廢鐵103已被預熱至高溫*氧氣使廢鐵103熔解而被切 斷。因此，即使在廢鐵103積層於預熱塔102下部之殘餘未 熔部上之情況*亦由於其被切斷.，可防止吊架狀態之發生 。由於如前逑使預熱塔102形成斜度而難於發生之吊架現 象係仍會以某一程度之頻度發生者，但由於如上述切斷預 熱塔102下方之廢鐵103，可約略完全防止由廢鐵103積層 於朱熔部而發生之吊架現象。 經濟部智慧財產局員工消費合作社印製 茌藉此電弧107使廢鐵103熔解之際，用吹管112a將氧氣 供給於爐肉，Μ輔助廢鐵103之熔解。然後，在爐內之熔 鋼量積多時*將用作輔助熱源之煤焦從吹管112b噴入熔渣 中，K進入造渣操作，使電極106之先端淹沒於熔渣109中 ，Μ便電弧107形成於熔渣109內。此項煤焦，用作輔肋熱 源噴射者，與另外供給之氧氣進行反應而產生C0氣體之同 時*其反應熱被利用以促進廢鐵103之熔解。 再者*從氧氣供給裝置116供給之氧氣乃與鐵起反應而 產生PeO。此FeO亦被從吹管112b供給之煤焦堪原。 當龌鐵之熔解進展至指定量例如一次裝料分Μ上之熔鋼 積聚於爐內時，使爐傾動Μ按一定時間升溫，而在保持廢 鐵連績存在於熔解爐101內及預熱塔102内之狀態下，使熔 解爐101傾動，Μ將相當於一次装料分之熔鋼從出鏑口 114 本紙張尺度適用中國國家標準（C.NS ) Α4規格（210 X 297公釐） 1 / ' A7 B7 462990 五、發明説明（26) 出鋼於鍋式盛桶等。在出鋼之際，亦可从用燃燒器113來 加熱熔鋼，Μ防熔鋼凝固所引起之出鋼口 11 4之堵塞。 再者，如上所述，以良好之效率使廢鐵熔解之觀點上’ 最好能使用煤焦等之輔肋熱源，即*將充作輔肋熱源之煤 焦從上述吹管11 2b噴射之同時，從另-吹管H2a供給氧氣 時，可產出C0*而產生熱量。在此場合，從吹管112a及氧 氣供姶裝置116供給之合計氧氣量最好能為25Nra3 /tK上 。藉此，可實現更高效率之廢鐵之熔解。更佳的是，上逑 合計氧氣量為40Nni3 /t。 其次*如此在經常有廢鐵存在之狀態下施行熔解時，由 於熔網溫度低至1550TC之程度，有熔網培塞出鋼口 Π4之 可能性，但在出鋼之際，如上述用燃焼器113來加熱熔鋼 時，可避免上述問題。當然亦可K利用電弧電極等之其他 加熱機構。 (實施態樣5) 使用一具有互相直接連接之熔解爐（爐徑7.2d，高度4m) 及預熱塔（5mWX3mDx7BH)之直流電弧設備，如第13圖所 示，在熔解爐1中之預熱塔102之下方位置設有6個氧氣供 給裝置（氧氣供給噴嘴）116者，以將廢鐵150噸裝入該直流 電弧設備之熔解爐內及預熱塔內，在熔解爐藉30时石墨電 極按最大750V，130kA之電源容量形成電弧》Μ使廢鐵熔 解。再者*將水冷吹管從設在爐側壁之作業口插入，由此 按4000Ν®3 /小時之童進給氧氣。當爐内之熔鋼量積多時 ，將煤焦按80kg/分鐘噴人熔渣中，Μ進入造渣操作，而 -紙珉尺度適用中國國家標準（CNS ) Α4规格（210 X 297公釐） (請先聞讀背面之注意事項再填寫本頁) ,1 訂 經濟部智慧財產局員工消費合作社印製 462990 五、發明説明（27 ) (請先聞讀背面之注意事項再填寫本頁) 使石墨電極之先端淹沒於所形成之熔渣中。將此時之電壓 設定為550 V。當預熱塔内之騣鐵隨著熔解爐内之廢鐵之熔 解而下降時，從預熱塔上部之廢鐵裝料斗供給廢鐵’以保 持預熱塔内之廢鐵高度為一定之高度。 在此期間，將氧氣從上述氧氣供給裝置（氧氣供給噴嘴） 按每支噴嘴350-500Nras /小時之噴速供給於預熱塔下 方之廢鐵，K熔蹐廢鐵103，而繼鑕在防止吊架狀態之發 生之下經常發生廢鐵倒入熔鋼中之狀態。 如此，在一使廢鐵連鑕存在於預熱塔内及熔解爐內之狀 態下進行熔解，而在熔解爐内產生之全熔鋼量達到180噸 之階段時，使熔解爐傾動，Μ利用一定時間之電狐加熱來 升溫，使60噸之焐鋼留存於爐内，而使相當於一次裝料分 之熔鋼120噸出爐於鍋式盛桶内。出爐時之熔鋼溫度為 1550C。熔鋼中之C濃度為0.1¾。出鋼口附近之熔鋼係被 氧氣-油燃燒器加熱者。 經濟部智慧財產局負工消費合作社印製 在120噸出鋦後，亦繼續熔解而反覆，當熔解爐内之熔 鋼量再次達到180噸時出銅120噸之操作。K平均而言|由 tap-tap約40分鐘得到熔鋼120噸*在氧氣供給噴嘴及水冷 吹管所供給之合計氧氣量33Nm3 /t及單位用焦量26ks/t之 條件下，得到簞位用電量170kWh/t。 在未供給從配置於預熱塔下方之氧氣供給噴嘴所供給之 氧氣之場合，廢鐵則積層於預熱塔下部之殘餘未熔部上， 儘管廢齙之全面有空間，廢鐵卻不降落於爐内，長畤間繼 壤所謂之吊架狀態，而K裝料β次（出鋼6次）中之1次之程 30 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） 4 6299 0 at Β7 五、發明説明（23) 度發生熔解停滯之現象，但依照本發明，在預熱塔下方從 氧氣供給噴嘴供給氧氣以積極熔解切斷廢鐡之情況，未曾 發生過上逑熔解停滯之現象。 藉供給氧氣來施行廢鐵之熔解切断之場合及未施行利用 氣氣所行之熔解切斷之場合（僅從水冷吹管供給/ 小時之氧氣）之tap-tap時間及其頻度均示於圖15中。由圖 15可知，在預熱塔下方未Λ給氧氣之場合、Μ有某些裝料 次由於廢鐵供給於熔解爐内熔鋼中之速度降低而造成tap-tap時間被延長，然而在利用氧氣來施行切斷之場合’每 次裝料均約略需要4 0分鐘之事實被確認。 其次，關於本發明之其他實施態樣，在參照第16圖至第 18圖之下，加Μ說明。第16圃展示一涉及本發明之一實施 形態之電弧熔解設備之撕面圖。此一電弧熔解設備在預熱 塔202圼矩形之場合*即使在預熱塔202彤成有斜度時，亦 由於其壁面與廢鐵203之摩擦力大而未必能有效防止吊架 現象 > 因此較佳的是，使預熱塔202之斷面形狀成為含有 圓或橢圓或曲線之形狀。 經濟部中失橾準局貞工消費合作社印裝 在一從熔解爐201内之熔鋼液面位置至預熱塔202之廢鐵 上端位置之範龎內，在熔解爐201及預熱塔202之側壁設有 複數段（在圖中設有3段）之氣體導入口 216，被用以將含氧 氣氣體（如氧氣、空氣等）供給於裝有廢鐵之部分。利用自 此項氣體導入口 216導人之含氧氣氣體*使熔解爐201所產 生之未燃燒C0氣體燃燒。 由於如此將氣體導入口 216Μ複數設在一從熔解爐201内 31 (請先閱讀背面之注f項本頁) 本紙張尺度適用中國國家標準（CNS ) Α4规格（210X297公釐） 經濟部中央標準局眞工消費合作社印製 4 6 2 9 9 0 a? ________B7_五、發明説明（29) 之熔鋼液面位置至預熱塔202之廢鐵上端位置之範園內之 任選位置上*可令熔解蟓201所產生之C0氣體在熔解爐201 内之廢鐵層及預熱塔202內之廢鐵層203之任選之複數位置 燃燒。例如*可在熔解爐201内之廢鐵層燃燒全燃燒量之 1/3，在熔解爐201直接上方之預熱塔202下部之廢鐵層燃 燒全燃燒量之1/3*而在預熱塔202內之熔鋼液面與廢鐵最 上層之中間位覃燃燒所剰-之1/3 /從而.*不會使所產生 之C0全部在一處燃燒，因此燃焼氣體之溫度不會變為高溫 ，亦不會發生由燃燒所產生之c〇2之解雛而產生〇2之情事 。又由於在所指定之位置使C0燃燒，其控制性良好而可確 實K窩效率燃燒。 闕於此項氣體導入口 216，如第17圖所示，在每一段之 周向設有複數（在該圖中設有4個）之氣體導入口 216。此等 氣體導入口 2.1 6在設定從熔解爐201內之熔鋼液面位置至塔 上部之冷鐵源上端位置之長度為L之場合，較佳的是，在 0.5L之位置之下方形成2段以上。若形成於0.5L之上方， 則由於燃燒後之帶熱時間短，而效果低，另若觫形成一段 ，則仍會使燃燒氣體之溫度變為高溫，而有可能發生如廢 鐵被氧化，設備之熱負荷變大等之問題。再者’較佳的是 ，此等氣體導入口 216在0.5L之位置之下方彤成5段K下。 在0.5L之位置之下方設有6段K上之氣體導入口 216之場合 ，反而使空氣等之含氧氣氣體對預熱塔内部進入之距雛減 少f遲延預熱塔102中心部之燃燒，致使未燃燒氣體在 0.5L之上方燃燒，造成效率之降低。32 本纸張尺度逋用中國國家標隼（CNS ) A4規格（210X297公釐） (請先閱讀背面之注$項再皮容本頁) 4 6 2 9 9 Ο Α7 Β7 五、發明説明（:】〇) 在本實施形態中，由於在一從熔解爐201內之熔鋼液面 位置至預熱塔202之廢鏹上端位置之範圍内之任選位置上 設有複數之氣體導人口 216，將空氣、氧氣等之含氧氣氣 體從該等氣體導入口 216吹入時，可令熔解爐201所產生之 C0氣體在熔解爐201内之廢鐵層及預熱塔202內之廢鐵層 20 3之任選之複數位置燃燒，不會發生如在醒鐵層203之一 部位燃燒之場合所發生之《焼氣體溫度變舜高溫致使廢鐵 焙融附著之情事，亦不會發生由燃燒所產生之C〇z之解離 而產生02之情事。又由於在所指定之位置使C0燃燒，其控 制性良好，可確實以高效率燃燒，而將其熱有效利用於廢 鐵之預熱。_ 在此場合，較佳的是，將全部之含氧氣氣體吹入量，K 根據其中之氧氣湄度及流量所算出之氧氣量Qiri對於吹入 爐內之被用於與輔肋熱源進行之反應Μ及金屬氧化之氧氣 量Q(Hm3 /分鐘）可成為Κ下之（Α)式所示之關係之方式予 Μ設定： 0. 55Qg Qini 0, 9Q .......(A) 經濟部f央標隼f工消費合作社印製 {請先聞讀背面之注意事項t寫本頁) 此項設定之理由為，若Qin超過0,9Q*則會導致不參與 燃燒之剩餘氣氣之存在，隨之剩餘Η 2亦會增加，使發生氣 之溫度降低，而降低效率之同峙，亦會發生由剩餘氣氣所 引起之氧化之問題，另若Q i η小於0 . 5 5 Q，則無法使所產生 之C0全部燃燒，致使預熱塔上部有未燃燒之C0之存在。 其次，關於本發明之另一實施態樣，根據第16圖至第19 圖加Κ說明。 本紙張尺度適用中周國家標準（CNS )八4规格（210 X 297公釐） 462990 經濟部中央標準局員工消費合作社印製 A7 K!___ 五、發明説明（3 i) 在前述實施態樣中，藉含氧氣氣體，來自以複數段設在 一從熔解爐201内之熔鋼液面位置至預熱塔202之廢鐵上端 位置之範圍内之任選位置上之氣體導入口 2 16者*使熔解 爐2 01所產生之C0廢氣.實質全部燃燒，但在本實施態樣中 ，使熔解爐2 01之渣門2 1 5充作一作業門，被用K容許空氣 侵入熔解爐201者，起作用，即在熔解處理中打開此作業 門215M容許空氣侵入熔解1爐.201，.命在熔解爐.2 01内使未 燃焼之C0騷氣一部分燃燒。然後，利用含氣氣氣體，來自 被設定在一從熔解爐201肉之熔鋼疲面位置至預熱塔202之 廢鐵上端位置之範圍肉之任選位置上之氣體導入口 216者 *使未燃燒之C0廢氣之殘餘部分燃燒。 如此容許空氣侵人熔解爐201時，爐内所產生之高溫C0 氣體則有一部分因侵人之空氣之作用而燃燒，但係在熔解 爐201內發生燃燒，不會造成未熔解廢鐵層內之局部高溫 ，亦不會發生廢鐵之熔融附著。再者，在廢氣進入預熱塔 202之前，此項燃燒熱在熔鋼面至預熱塔202下端位置之間 被轉移於廢鐵203，而廢氣在進入預熱塔202之際，已降溫 至不引起烙融附著之溫度。然後，在預熱塔202内亦同樣 ，氣體之熱被轉移於賴鐵，因此廢羁溫度並不高，預熱塔 202内亦不會發生廢鐵之熔融附著。可將該部分之廢鐵Μ 良好之效率予Κ預熱。再者，如此，廢氣之熱確實轉移於 駿鐵203，而有效利用於廢鐵203之預熱。 在本實施態樣中，藉所侵入之空氣使C0廢氣一部分在熔 解爐201燃燒之際，設C〇2/(C02+CO)=OD而Μ可達成0D< (請先聞讀背面之注意事項tfv寫本頁) .裝- 訂 線 本紙張尺度適用中國國家標率（CNS ) A4規格（210X297公釐） 34 經濟部中央標準局員工消費合作社印製 4 62 99 0 Λ7 Α7 Β7 五、發明説明（32) 0.7之方式在熔解爐201肉使未燃燒CO氣體燃燒。若0D值為 0.7M上，熥内熱量則太大，而造成爐之損傷或熔融附著 。較佳的是，設定0D< 0.6。 如此，在本簧施態樣中，由於在熔解爐20 1內使未燃燒 之C0氣體一部分燃燒，與至此所述之實施態樣一樣，不會 發生如在鼯鐵層203之一部位燃燒之場合所發生之情事， 即燃燒氣體溫_變為高溫使廢鐵·2 03溶融附著者，亦同 樣不會發生由燃燒所產生之C02之解離而產生02之情事。 又由於在所指定之位置使C0燃燒，其控制性良好，可確實 Μ高效率燃燒，而將其熱有效利用於廢鐵之預熱。， 再者，如第18圖所示，與至此所述之實施彤態不同的是 ，在本實施形態中，已在熔解爐201内使未燃燒之C0廢氣 一部分燃燒，因此其氣體導入口 2 16僅設置一段亦可。當 然，設置複數段亦可。與至此所述之實施形態一樣，在提 高廢鐵203之預熱效果之觀點上，氣體導入口 216最好能存 在於下部。 如此設置一段氣體導入口 216之場合，及設置複數段氣 體導入口 216而其氣體導入量少之場合* 0D值最好能滿足 0.3C0D。在此等場合，若0D值為0.3Μ下，則造成預熱塔 内之氣體熱量不足，而無法充分施行廢鐵之預熱。$佳的 是*設定0.4C0D。 在本簧施態樣中，亦與至此所述之實施觀樣一樣*由於 Μ經常可保持廢鐵203連攘存在於熔解爐201内及預熱塔 202内之狀態之方式將廢鐵2 0 3供給於預熱塔20 2，廢氣之 本紙張尺度適用中國國家襟準（CNS ) A4規格（210X297公釐） (請先閲讀背面之注意事項再ir寫本頁〕 -裝- 訂 46299 0 A7 ___B7 五、發明説明（33) 高 較 JS1 率 效 之 鐵 廢40 熱之 預量 爐 解 熔 於 在 存 缜 I 鐵 廢 之 上 Μ 料 2 裝20 次塔 一 熱 使預 ， 及 時内 鋼01 ϋ 2 及 中 解 熔 在 而 經濟部中央標準局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210X297公釐） 内時，該預熱效率則會變得非常高。再者，關於Μ生產co 為目的而與輔助熱源（如煤焦等）進行之反應上，κ及κ造 渣為目的之金屬氧化上，所使用之氧氣之供給量最好能為 25Nm3 /t以上，而 K40Nm3 /t更佳。 (實施窳抹6) : ' 使用一具有互相直接連接之熔解爐（爐涇7.2m，高度4m) 及預熱塔（5myx3mDx7mH)之直流電弧設備，以將廢鐵150 _装入該直流電弧設備之熔解爐肉及預熱塔内，在熔解爐 藉28吋石墨電極按最大6〇〇V，100kA之電源容量形成電弧 ，以使廢鐵熔解。再者，將水冷吹管從設在爐側壁之作業 口插人，由此按6600Hm3 /小時之量進給氧氣。 如第19圖所示，在熔解爐201之熔鋼液面上方之側壁（離 熔解爐上端1·5βι之下方）側面W1段（A)4個部位，Μ及在預 熱塔202之塔下部500mm之位置起Μ 8段（B,C，D，E，F，G，H，I) 各4個部位，設有總共9段之噴嘴（氣體導入口）216，被用 Μ將空氣吹入熔解爐201、預熱塔202。 將空氣在依照如表2所示之分配下’從各噴嘴吹入，而 測定此時之單位用電量及預熱塔上部之氣體組成。 此外，當爐内之熔網量積多時*將煤焦按kg/分鐘噴 入熔渣中*以進入造渣操作’而使石墨電極之先端淹沒於 所形成之熔渣中。將此時之雷壓設定為400V。當預熱塔肉 之廢鐵隨著熔解爐內之廢鐵之熔解而下降時’從預熱塔上 (請先閲讀背面之注意事項t寫本頁) .裝. 4 6299 0 a? B7 經濟部中央標準局貝工消費合作社印製 五、發明説明（3._!) 部由駿鐵裝料4供給廢鐵，Μ保持預熱塔内之廢鐵高度為 一定之高度。 如此，在一使龌鐵連續存在於熔解爐内及預熱塔內之狀 態下進行熔解，而在熔解爐内產生之熔鋼量達到180噸之 階段時，使60噸之熔鋼留存於爐內*而使相當於一次裝料 分之熔鋼120噸從出鋼口出爐於鍋式盛桶内。出爐時之熔 鋼溫度為1 5 5 0 。熔鋼.中：k .C濃度為〇 , 1 %。出綱口附近之 熔鋼係被氧氣-油燃燒器加熱者。 在120噸出鋼後亦在供給氧氣及噴射煤焦之下施行造渣 操作K繼續熔解5而反覆其熔解爐内之熔鋼量再次達到 180噸時出鋼120噸之操作。表2之結果展示反覆此項熔解 之5次裝料之平均.值。又按，表2之實？fe例1〜9均在本發明 之範圍内，而比較例1〜4均在本發明之範園外。比較例1 〜3使熔解爐彤成密閉狀態，其中比較例1〜2K —段_行 空氣之吹入，而比較例3並未施行空氣之吹入。再者*比 •. 較例4係施行習知之分批操作之例子。 由該表之結果確認下述事實：實施例由於使餒鐵經常存 在於熔解爐及預熱塔内並且得以良好之效率使未燃燒C0氣 體燃燒，實現高度之廢鐵預熱效率’而有可能降低簞位用 電量。尤其在空氣吹入位置及空氣吹人量均設於較佳範圍 内之實施例1、實施例2、實施例4之情況，按平均之 tap-tap約40分鐘得到熔鋼120噸’在氣氣量33Nn3 /t及單 位用焦量26kg/t之條件下’得到單位用電量175〜180kWh/ t，其與未實施本發明之比較例1〜4相較，單位用電量之 ^-- (請先閲讀背面之注意事項f容本頁) 訂J-Order-Line ο. · Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 46299 0 A7 __. _B7_ V. Description of the invention (22) The quantity is low, and the preheating effect of the scrap iron in this embodiment is very high. (Implementation Mode 2) (Please read the precautions on the back before filling this page) In the above melting furnace, except for setting the oxygen amount to 45Hm3 / t and the unit coke amount to 36kg / t, all are the same as in the examples 1 Melting was performed in the same manner. The results are also shown in Table 1. In this example, the unit electricity consumption is extremely low 135kWh / t, and K tap-tap obtains an average temperature of 1575 t in about 37 minutes; the molten steel. (Implementation mode 3) A DC arc device having a melting furnace (length 8.5m, width 3m, height 4m) and a preheating tower (3bWx3bD) directly connected to each other is used, such as Fig. 8, Fig. 9, K and As shown in FIG. 10, in the melting furnace, half of the bottom surface of the portion corresponding to the preheating tower and the portion corresponding to the spaced portion becomes, for example, an inclined surface inclined at 15 degrees, and M is the same as that of the first embodiment. Conditional implementation of melting. The results are shown in Table 1. The tapping temperature of this example is 1600T :, which is higher than that of Example 1 and Example 2. In addition, it obtains a unit power consumption of 188kWh / t under the conditions of a unit halo of 33Nms / t and a unit coke quantity of 26kg / t, and obtains an average unit power consumption of LF of 30kWh / t. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs (Actual State 4) In the above melting furnace, in addition to setting the unit oxygen amount to 4Hm3 / t and the unit coke amount to 3 & kg / t, both M and Melting was performed in the same manner as in Example 3. The results are also shown in Table 1. In this example, the unit electricity consumption is extremely low of 148klih / t, and Mtap-tap obtains an average temperature of 1600T: molten steel in about 37 minutes. Table 1 China ’s national scale (C.NS) A4 specification (210 X 297 mm) 2 ^ 46299 0 A7 __'_ B7 V. Description of the invention (23) Example 1 Example 2 Example 3 Example 4 Comparative example method of operation The present invention The present invention The present invention is batchwise ^ Unit oxygen consumption (Nm3 / t) 33 45 33 45 33 1 ^ ---- Unit coke consumption (kg / 1) 26 36 26 36 Temperature (° C) 1575 1575 1600 1600 162〇_ Unit electricity consumption (kWh / 1) 175 135 188 148 LF Unit electricity consumption (kWh / 1) 45 45 35 35 Total unit electricity consumption (kWh / 1) 220 180 223 183 (I read the note WW first and then fill it out. Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Secondly. About other implementations of the present invention > Add the description below. Figure 12 is a cross-sectional view showing an arc melting device related to a real m form of the present invention. This arc melting device has a melting furnace 101 for arc melting of a cold m source; directly connected to the melting The preheating tower 102 is connected above the furnace. The upper end of the preheating tower 102 is provided with a connection to the gas suction system. The exhaust part 102a of the melting furnace 101 and the preheating tower 102 are filled with scrap iron 103 as a source of cold iron. The melting furnace 101 is provided with two blow pipes 112a and 112b, each of which has a tip facing The molten steel surface in the repair furnace is inserted into it, and gas is supplied from the blowing pipe 112a, and coal coke is sprayed from the blowing pipe 112b as an auxiliary heat source. Also, for the auxiliary heat source 9, carbon materials other than coal coke can also be used. In the melting furnace 101, a protruding portion 101a is provided on a portion that is not directly connected to one side of the preheating tower 1P2, and a tap hole 114 is formed at the bottom of the protruding portion 10la. Slag door 115. Press again, and the tap hole is also set to λ. Set the paper size to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 4 6299 0 5. Description of the invention (24) The same as the slag door 115 In addition, a burner 113 inserted from the top of the protruding portion i0ia is provided to increase the temperature of the molten steel. In this case, other heating mechanisms such as an arc electrode can also be provided. M instead of the burner 113. Preheating tower 102 The side wall is shown in FIG. 12 and has an inclination extending downward. Because of this inclination, high-temperature scrap iron can be stably supplied to the molten steel 108 in the melting furnace. In the case where no slope is formed, the scrap iron 103 is restrained by the wall portion of the preheating tower 102, and it is difficult to fall naturally, which is the cause of the hanger phenomenon. An oxygen supply device 116 is arranged below the preheating tower 102 in the melting furnace 101, and K supplies oxygen to the waste iron that exists below this. As shown in 阄 13, the number of this oxygen supply device 116 is six. When oxygen is supplied to the scrap iron 103, the scrap iron 103 may be melted and cut. When the scrap iron 103 is melted and cut in this way, the hanging phenomenon can be prevented more effectively. When the oxygen is supplied from the oxygen supply device 116, the O2 gas may be supplied alone or mixed with other gases. Furthermore, it is mainly possible to combust, so may be oxygen-containing gas. Further, as shown in FIG. 14, a fuel supply device 117 and an oxygen supply device 116 which supply fuel (such as petroleum, gas, etc.) may be installed together. When the fuel is supplied in this manner, it is easier to melt and cut the scrap iron 103. When melting the scrap iron in the melting equipment constructed in this way * Firstly, the scrap iron 103 is charged into the melting furnace 101 and the hot tower 102, and K forms a state in which the scrap iron 103 continuously exists in the melting furnace 101 and the preheating tower 102. . In this state, the arc electrode 107 is formed by the arc electrode 106, and the scrap iron 10 is applied to this paper. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) < Please read the precautions on the back before filling in this Page) Order printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 46299 0 a? __Β7_ V. Description of the invention (25) Simultaneous melting > Supplying oxygen from the oxygen supply device 116 to the scrap iron 103, to cut off the scrap iron by melting 103. (Please read the precautions on the back before filling out this page.) Press again, and when the fuel supply device 117 is installed, supply fuel such as petroleum with oxygen. When oxygen is supplied to the scrap iron 103 in this way, the scrap iron 103 is preheated to a high temperature * and the scrap iron 103 is melted and cut off. Therefore, even in the case where the scrap iron 103 is laminated on the remaining unmelted part of the lower part of the preheating tower 102 *, it is cut off because of it, which can prevent the state of the hanger. The hanger phenomenon that is difficult to occur due to the inclination of the preheating tower 102 as described above will still occur at a certain frequency, but because the scrap iron 103 below the preheating tower 102 is cut off as described above, it can be approximately completely Prevent the hanging phenomenon caused by the scrap iron 103 stacked on the Zhu Rong section. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. 茌 When the scrap iron 103 is melted by the arc 107, oxygen is supplied to the furnace meat through a blow pipe 112a, and M assists the melting of the scrap iron 103. Then, when the amount of molten steel in the furnace is large *, the coal coke used as the auxiliary heat source is sprayed into the slag from the blowing pipe 112b, and K enters the slag making operation, so that the tip of the electrode 106 is submerged in the slag 109, and M An arc 107 is formed in the slag 109. This coal coke is used as the auxiliary rib heat source sprayer, and reacts with separately supplied oxygen to generate CO gas *. The reaction heat is used to promote the melting of the scrap iron 103. In addition, the oxygen supplied from the oxygen supply device 116 reacts with iron to generate PeO. This FeO is also raw coal coke supplied from the blow pipe 112b. When the melting of hafnium iron progresses to a specified amount, for example, the molten steel on a single charging component M is accumulated in the furnace, the furnace tilting M is heated up for a certain time, and the waste iron is continuously present in the melting furnace 101 and preheated. In the state inside the tower 102, the melting furnace 101 is tilted, and M will be equivalent to one load of molten steel from the outlet 114. This paper size applies the Chinese National Standard (C.NS) Α4 specification (210 X 297 mm) 1 / 'A7 B7 462990 V. Description of the invention (26) Steel tapping in pot-type ladle etc. At the time of tapping, it is also possible to use the burner 113 to heat the molten steel, and block the tapping opening 11 caused by the solidification of the M anti-melting steel. Furthermore, as mentioned above, from the viewpoint of melting scrap iron with good efficiency, it is better to use a coke heat source such as coal coke, that is, at the same time that the coke used as the coke heat source is sprayed from the above-mentioned blow pipe 11 2b When oxygen is supplied from the other-blow pipe H2a, it can produce C0 * and generate heat. In this case, the total amount of oxygen supplied from the blowing pipe 112a and the oxygen supply unit 116 is preferably 25Nra3 / tK. Thereby, melting of scrap iron with higher efficiency can be realized. More preferably, the total amount of oxygen in the upper part is 40Nni3 / t. Secondly * In this way, when melting is carried out in the presence of scrap iron, the temperature of the welded network is as low as 1550 TC, and there is a possibility that the welded network can plug the steel outlet Π4. When the heater 113 is used to heat the molten steel, the above problems can be avoided. Of course, other heating means such as an arc electrode may be used. (Implementation mode 5) A DC arc device having a melting furnace (furnace diameter 7.2d, height 4m) and a preheating tower (5mWX3mDx7BH) directly connected to each other is used, as shown in FIG. Six oxygen supply devices (oxygen supply nozzles) 116 are installed below the hot tower 102 to load 150 tons of scrap iron into the melting furnace and preheating tower of the DC arc equipment, and the graphite is borrowed at 30 o'clock in the melting furnace. The electrode forms an arc at a maximum power supply capacity of 750V and 130kA to melt the scrap iron. Furthermore * Insert the water-cooled blowing pipe from the working port provided on the side wall of the furnace, so as to feed oxygen at the rate of 4000N 3 / hour. When the amount of molten steel in the furnace is large, the coal coke is sprayed into the slag at 80kg / min, and M enters the slagging operation, and the paper mill scale applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) ) (Please read the notes on the back before filling out this page), 1 Order printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperatives 462990 V. Invention Description (27) (Please read the notes on the back before filling out this page) The tip of the graphite electrode was submerged in the slag formed. Set the voltage at this time to 550 V. When the iron in the preheating tower decreases with the melting of the scrap iron in the melting furnace, the scrap iron is supplied from the scrap iron hopper in the upper part of the preheating tower to keep the scrap iron height in the preheating tower to a certain height . During this period, oxygen is supplied from the above-mentioned oxygen supply device (oxygen supply nozzle) to the waste iron below the preheating tower at a spraying rate of 350-500 Nras / hour per nozzle, and K melts the waste iron 103, and continues to prevent Under the state of the hanger, the state where the scrap iron is poured into the molten steel often occurs. In this way, in a state where the scrap iron flail exists in the preheating tower and the melting furnace, and when the total amount of molten steel generated in the melting furnace reaches 180 tons, the melting furnace is tilted, and the utilization The electric fox is heated to heat up for a certain period of time, so that 60 tons of stern steel is retained in the furnace, and 120 tons of molten steel equivalent to one charge is released in a pot-type drum. The temperature of the molten steel when it was released was 1550C. The C concentration in the molten steel is 0.1¾. The molten steel near the tap is heated by an oxygen-oil burner. Printed by the Consumer Goods Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. After 120 tons of copper is released, it continues to melt and repeat. When the amount of molten steel in the melting furnace reaches 180 tons again, the operation of producing 120 tons of copper. K on average | 120 tons of molten steel is obtained from tap-tap in about 40 minutes 170kWh / t. When the oxygen supplied from the oxygen supply nozzle arranged below the preheating tower is not supplied, the scrap iron is stacked on the remaining unmelted portion at the lower part of the preheating tower. Although there is room for the waste, the scrap iron does not fall. Inside the furnace, Nagahama follows the so-called hanger state, and one of K loading β times (six times tapping) is 30 times. This paper size is applicable to China National Standard (CNS) Α4 size (210X297 mm). ) 4 6299 0 at Β7 V. Explanation of the invention (23) Melting stagnation occurs, but according to the present invention, the oxygen is supplied from the oxygen supply nozzle below the preheating tower to actively melt and cut off the waste, which has never happened.逑 Melt stagnation. The tap-tap time and frequency of the case where the melting and cutting of waste iron is performed by supplying oxygen and the case where the melting and cutting are not performed by using gas (only oxygen supplied from a water-cooled torch / hour) are shown in FIG. 15 in. It can be seen from FIG. 15 that in the case where oxygen is not supplied below the preheating tower, M has some loading times. The tap-tap time is prolonged due to the decrease in the speed of the scrap iron supplied to the molten steel in the melting furnace. Where oxygen is used to perform the cut-off, the fact that each loading takes approximately 40 minutes is confirmed. Next, other embodiments of the present invention will be described with reference to FIGS. 16 to 18. Fig. 16 shows a torn view of an arc melting apparatus according to an embodiment of the present invention. In the case where the preheating tower 202 is rectangular, even when the preheating tower 202 is inclined, this arc melting device may not be able to effectively prevent the hanger phenomenon due to the large friction between the wall surface and the scrap iron 203. > Therefore, it is preferable that the cross-sectional shape of the preheating tower 202 is a shape including a circle, an ellipse, or a curve. In the Ministry of Economic Affairs, the Zhenggong Consumer Cooperative Co., Ltd. printed in a range from the molten steel level in the melting furnace 201 to the upper end of the scrap iron in the preheating tower 202, in the melting furnace 201 and the preheating tower 202. The side wall is provided with a plurality of sections (three sections are provided in the figure) of gas introduction ports 216, which are used to supply oxygen-containing gas (such as oxygen, air, etc.) to the part containing the scrap iron. The unburned CO gas generated in the melting furnace 201 is burned by the oxygen-containing gas 216 introduced from the gas introduction port 216. Because of this, a plurality of 216M gas inlets are set in the melting furnace 20131 (please read the note f on the back page first) This paper size applies the Chinese National Standard (CNS) Α4 size (210X297mm) Central Standard of the Ministry of Economic Affairs Printed by the Bureau ’s Consumer Cooperatives 4 6 2 9 9 0 a? ________B7_ V. Description of Invention (29) The molten steel level to the upper position of the scrap iron at the preheating tower 202 is at an optional position in the park * The CO gas produced by the melting of the plutonium 201 can be burned in the optional plural positions of the waste iron layer in the melting furnace 201 and the waste iron layer 203 in the preheating tower 202. For example * can burn 1/3 of the total combustion capacity in the waste iron layer in the melting furnace 201, burn 1/3 of the total combustion capacity in the waste iron layer below the preheating tower 202 directly above the melting furnace 201 * and preheat The liquid level of the molten steel in the tower 202 and the uppermost level of the waste iron are 1/3 of the amount burned by Tan-thus. * Does not cause all the C0 generated to burn in one place, so the temperature of the burning gas will not change. Because of the high temperature, the occurrence of 〇2 caused by the burning of 〇2 will not occur. In addition, because CO is burned at the designated position, its controllability is good, and K-well efficiency can be confirmed. At this gas introduction port 216, as shown in Fig. 17, a plurality of gas introduction ports 216 are provided in the circumferential direction of each section (four in this figure). When these gas introduction ports 2.16 are set to a length L from the molten steel level position in the melting furnace 201 to the upper end position of the cold iron source in the upper part of the tower, it is preferable to form 2 below the position of 0.5L. Paragraph above. If it is formed above 0.5L, the heating time after combustion is short and the effect is low, and if the radon is formed for a period, the temperature of the combustion gas will still become high, and it may happen that the waste iron is oxidized. The thermal load of the equipment becomes large. Furthermore, it is preferable that the gas introduction ports 216 are arranged below the position of 0.5L to form 5 sections of K. When the gas introduction port 216 on the 6 section K is set below the 0.5L position, the oxygen-containing gas such as air to the interior of the preheating tower is reduced by f. Causes the unburned gas to burn above 0.5L, resulting in a decrease in efficiency. 32 This paper uses the Chinese National Standard (CNS) A4 size (210X297 mm) (please read the note on the back before reprinting this page) 4 6 2 9 9 〇 Α7 Β7 5. Description of the invention (: ] 〇) In this embodiment, since a plurality of gas guides 216 are provided at an optional position in a range from the molten steel liquid level position in the melting furnace 201 to the upper end position of the waste gas in the preheating tower 202, When oxygen-containing gas such as air or oxygen is blown in from these gas introduction ports 216, the CO gas generated by the melting furnace 201 can be used in the waste iron layer in the melting furnace 201 and the waste iron layer 20 in the preheating tower 202. The optional plural positions of 3 will not burn, such as the occurrence of the "thorium gas temperature changing to high temperature and causing the scrap iron to melt and adhere to the place where it burns in one part of the arousal iron layer 203. The resulting dissociation of Coz leads to the occurrence of 02. In addition, because CO is burned at the designated position, its controllability is good, it can surely burn with high efficiency, and its heat can be effectively used for the preheating of scrap iron. _ In this case, it is better to blow all the oxygen-containing gas into the air. K The amount of oxygen calculated by K according to the oxygen measurability and flow rate. Qiri is used to blow into the furnace to be used with the auxiliary rib heat source. The amount of oxygen Q (Hm3 / min) for the reaction M and metal oxidation can be set to M in the manner shown by the formula (A) under K: 0.555Qg Qini 0, 9Q... (A) Printed by the Ministry of Economic Affairs and the Central Government ’s Consumer Cooperatives (please read the notes on the back first and write this page) The reason for this setting is that if Qin exceeds 0,9Q *, it will lead to the remaining gas not participating in combustion Existence will increase the residual Η 2, which will reduce the temperature of the generated gas, while reducing the efficiency, the problem of oxidation caused by the residual gas will also occur, and if Q i η is less than 0.5 5 Q, it is impossible to burn all the generated C0, resulting in the presence of unburned C0 in the upper part of the preheating tower. Next, another embodiment of the present invention will be described with reference to FIGS. 16 to 19 and K. This paper size is applicable to Mid-week National Standard (CNS) 8-4 specifications (210 X 297 mm) 462990 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs A7 K! ___ 5. Description of the invention (3 i) By using oxygen-containing gas, the gas introduction port 2 16 is provided in an optional position within a range from the molten steel level in the melting furnace 201 to the upper end position of the scrap iron in the preheating tower 202 * The C0 exhaust gas produced by the melting furnace 2 01 is substantially completely burned, but in this embodiment, the slag door 2 1 5 of the melting furnace 2 01 is used as an operation door, and K is allowed to invade the melting furnace 201 It works, that is, open the operation door 215M in the melting process to allow air to invade the melting furnace 1.201, and order to burn part of the unburned CO0 gas in the melting furnace .01. Then, using the gas containing gas, the gas introduction port 216 is set at an optional position of the meat set in a range from the position of the molten steel exhaust surface of the melting furnace 201 to the upper position of the waste iron of the preheating tower 202. The remainder of the unburned CO exhaust gas burns. When air is allowed to invade the melting furnace 201, part of the high-temperature C0 gas generated in the furnace is burned due to the action of invading air, but combustion occurs in the melting furnace 201, which will not cause the unmelted scrap iron layer to Due to the local high temperature, fusion of scrap iron does not occur. In addition, before the exhaust gas enters the preheating tower 202, this combustion heat is transferred to the scrap iron 203 between the molten steel surface and the lower end of the preheating tower 202, and the exhaust gas has cooled to a temperature when it enters the preheating tower 202. Temperatures that do not cause solder adhesion. Then, also in the preheating tower 202, the heat of the gas is transferred to the iron, so the waste temperature is not high, and the molten iron does not adhere to the preheating tower 202. This part of the waste iron M can be preheated with good efficiency. Furthermore, in this way, the heat of the exhaust gas is indeed transferred to the Jun Iron 203, and is effectively used for the pre-heating of the waste iron 203. In this embodiment, when part of the CO exhaust gas is burned by the invading air in the melting furnace 201, it is set to C02 / (C02 + CO) = OD and M can reach 0D < (Please read the note on the back first Matters tfv write this page). Binding-book size is applicable to China National Standard (CNS) A4 specification (210X297 mm) 34 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 4 62 99 0 Λ7 Α7 Β7 V. Invention Explanation (32) 0.7 means to burn unburned CO gas in the melting furnace 201 meat. If the 0D value is above 0.7M, the heat inside the grate is too large, causing damage to the furnace or melting adhesion. Preferably, 0D < 0.6 is set. In this way, in the present spring application mode, because part of the unburned C0 gas is burned in the melting furnace 201, as in the embodiment described so far, it will not occur as in the case of burning in a part of the iron layer 203. What happened on the occasion, that is, when the temperature of the combustion gas became high, which caused the waste iron · 2 03 to dissolve, the author would also not cause the situation of 02 resulting from the dissociation of C02 produced by combustion. In addition, because CO is burned at the designated position, its controllability is good, it can burn with high efficiency, and its heat can be effectively used for the preheating of scrap iron. Moreover, as shown in FIG. 18, different from the state of implementation described so far, in this embodiment, a part of the unburned C0 exhaust gas has been burned in the melting furnace 201, so the gas introduction port 2 thereof It is also possible to set only one section. Of course, setting plural sections is also possible. As in the embodiment described so far, from the viewpoint of improving the preheating effect of the scrap iron 203, it is preferable that the gas introduction port 216 exists in the lower portion. In the case where one stage of gas introduction port 216 is provided in this way, and in the case where plural stages of gas introduction port 216 are provided and the gas introduction amount is small, the 0D value should preferably satisfy 0.3C0D. In these cases, if the OD value is below 0.3M, the heat of the gas in the preheating tower is insufficient, and the preheating of the scrap iron cannot be performed sufficiently. $ 佳 的 * is set to 0.4C0D. In the state of the spring application, it is also the same as the implementation described so far. * Because M can often maintain the state of the waste iron 203 in the melting furnace 201 and the preheating tower 202, the waste iron 2 0 3Supply to the preheating tower 20 2. The paper size of the exhaust gas is applicable to China National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before writing this page] -Pack-Order 46299 0 A7 ___B7 V. Description of the invention (33) The iron waste with a higher efficiency than JS1 is 40%. The preheating furnace is fused on top of the iron waste. Material 2 is installed 20 times. The tower is preheated in time. 2 and the solution is melted and printed by the Central Standards Bureau of the Ministry of Economic Affairs of the Consumer Cooperatives printed this paper to the Chinese National Standard (CNS) A4 specifications (210X297 mm), the preheating efficiency will become very high. Regarding the reaction with the auxiliary heat source (such as coal coke, etc.) for the purpose of producing M co, and the oxidation of metals for the purpose of κ and κ slag making, the supply of oxygen used should preferably be 25Nm3 / t or more. And K40Nm3 / t is better. (Implementing wipe 6): 'Use one DC arc equipment of melting furnace (hearth 7.2m, height 4m) and preheating tower (5myx3mDx7mH) directly connected to each other, in order to load waste iron 150 _ into the melting furnace meat and preheating tower of the DC arc equipment, in The melting furnace uses an 28-inch graphite electrode to form an electric arc with a maximum power supply capacity of 600V and 100kA to melt the scrap iron. Furthermore, a water-cooled blowing pipe is inserted from an operation port provided on the side wall of the furnace, thereby pressing 6600Hm3 / hour As shown in Fig. 19, there are 4 locations (A) in the W1 section (A) of the side wall above the molten steel level of the melting furnace 201 (below 1.5 ° from the upper end of the melting furnace). 500 mm from the lower part of the tower of the hot tower 202, from M 8 sections (B, C, D, E, F, G, H, I) 4 sections each, with a total of 9 sections of nozzles (gas inlets) 216, The air was blown into the melting furnace 201 and the preheating tower 202 with M. The air was blown in from each nozzle under the distribution shown in Table 2, and the unit electricity consumption at this time and the gas in the upper part of the preheating tower were measured. In addition, when there is a large amount of smelt in the furnace * coal char is sprayed into the slag at kg / min * to enter the slagging operation 'so that The tip of the graphite electrode is submerged in the formed slag. The lightning pressure at this time is set to 400V. When the waste iron of the preheating tower meat decreases with the melting of the waste iron in the melting furnace, 'from the preheating tower (Please read the note on the back first to write this page). Packing. 4 6299 0 a? B7 Printed by the Shellfish Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (3._!) For the supply of scrap iron, M keeps the height of the scrap iron in the preheating tower to a certain height. In this way, 60 tons of molten steel is left in the furnace in the stage where the iron is continuously present in the melting furnace and the preheating tower, and when the amount of molten steel generated in the melting furnace reaches 180 tons. The inner part is equivalent to 120 tons of molten steel in one loading. The temperature of the molten steel at the time of leaving the furnace is 1550. Molten steel. Medium: k.C concentration is 0, 1%. The molten steel near the exit is heated by an oxygen-oil burner. After 120 tons of steel is tapped, slag-making operation is also performed under the supply of oxygen and injection of coal coke. K continues to melt 5 and repeats the operation of 120 tons of steel when the amount of molten steel in its melting furnace reaches 180 tons again. The results in Table 2 show the average value of 5 charges of this melting repeatedly. Press again, the truth of Table 2? Examples 1 to 9 are all within the scope of the present invention, and Comparative Examples 1 to 4 are outside the scope of the present invention. In Comparative Examples 1 to 3, the melting furnace was sealed. Among them, Comparative Examples 1 to 2K were used to blow air, while Comparative Example 3 was not to blow air. Furthermore, * ratio • Comparative example 4 is an example of performing a conventional batch operation. From the results of the table, the following facts are confirmed: it is possible for the example to achieve high scrap iron preheating efficiency because the slag iron often exists in the melting furnace and the preheating tower and the unburned CO gas is burned with good efficiency. Reduce power consumption in niches. Especially in the case of Example 1, Example 2, and Example 4 where the air blowing position and the amount of air blowing are set in a better range, the average tap-tap is about 40 minutes to obtain 120 tons of molten steel. Under the conditions of an air volume of 33Nn3 / t and a unit coke volume of 26kg / t ', a unit power consumption of 175 to 180 kWh / t is obtained, which is compared with Comparative Examples 1 to 4 in which the present invention is not implemented. (Please read the precautions on the back of this page first)

本紙張尺度適用中國國家標準（CNS M4規格U10X297公漦） ：]J 462990 A7 B7 五、發明説明（,1 減少量逹60〜120kWh/t之多。 出爐之120噸熔鋼藉盛桶精煉爐（LP)升溫至1620¾ 經過連續鐮造而製得175X 175ϊηιβ小鋼坯。 表2 Η ί E1施例 比較例 1 2 3 4 5 6 7 8 9 1 2 3 4 二次燃燒空氣(Nm3/分鐘) 380 380 380 381 381 380 240 480 480 380 380 0 0 空氣吹入位置及吹入 量(Nm3/分鐘） A 190 127 120 160 120 380 B 190 190 127 127 120 160 120 3SO D 190 127 127 127 160 120 F 190 127 127 120 H 190 127 單位用電量(kWh/1) 175 180 220 180 195 210 230 215 225 250 240 280 3〇υ 單位用焦量(kg/1) 26 26 ^6.2 26.1 26 26.3 25.8 \19.2 29.1 31.9 30 26 26 Tai>-TaDi 分鐘） 40. 1 4〇.5 44.5 40.5 42 43.1 45.5 44.1 45 46.5 46.2 48.9 «— 廢氣組成 (除去犯後之殘餘分） CO(%) 0.4 0.5 2.8 0. 35 0,55 2.4 32.5 0 0.1 0.4 0.4 42 — C〇2(%) 99.2 99 93.3 99.3 99 94.3 67.5 79 77.5 99.3 99 52.3 一 〇2(%) 0.4 0.5 3.9 0.35 0.45 3.3 0 21 22.4 0.3 0.6 5.7 一 附註 分批 式 請 先 閲 讀 背 © 之 注 意 事 項This paper size applies to Chinese national standards (CNS M4 specification U10X297 cm):] J 462990 A7 B7 V. Description of the invention (, 1 Reduction amount: 60 ~ 120kWh / t. 120 tons of molten steel borrowed from the barrel refining furnace (LP) The temperature was raised to 1620¾ 175X 175ϊη β small billets were prepared through continuous sickle. Table 2 ί E1 Example Comparative Example 1 2 3 4 5 6 7 8 9 1 2 3 4 Secondary combustion air (Nm3 / min) 380 380 380 381 381 380 240 480 480 380 380 0 0 Air blowing position and amount (Nm3 / minute) A 190 127 120 160 120 380 B 190 190 127 127 120 160 120 3SO D 190 127 127 127 160 120 F 190 127 127 120 H 190 127 Unit electricity consumption (kWh / 1) 175 180 220 180 195 210 230 215 225 250 240 280 3〇υ Unit energy consumption (kg / 1) 26 26 ^ 6.2 26.1 26 26.3 25.8 \ 19.2 29.1 31.9 30 26 26 Tai > -TaDi minutes) 40. 1 4〇.5 44.5 40.5 42 43.1 45.5 44.1 45 46.5 46.2 48.9 «— Exhaust gas composition (excluding residuals after committing crimes) CO (%) 0.4 0.5 2.8 0. 35 0 , 55 2.4 32.5 0 0.1 0.4 0.4 42 — C〇2 (%) 99.2 99 93.3 99.3 99 94.3 67.5 79 77 .5 99.3 99 52.3-〇2 (%) 0.4 0.5 3.9 0.35 0.45 3.3 0 21 22.4 0.3 0.6 5.7-Note Batch mode Please read the notes of the back ©

訂 經濟部中央標準局員工消費合作社印製 (實施態樣7) 在上逑熔解爐中’除了設定氧氣進給童為9500Nlt|S /小 時，煤焦進給量為120kg /分鐘’單位用氧量為仏丨八及 單位用焦量為36kg/t之外’均以與實施例1相同之方法實 施熔解。此際之空氣吹入部位及吹入條件以及結果均示於 表3中。又按，表3之實施例〜18均在本發明之範圍内， 本紙張尺度適用中國國家標準（CNS ) A4規格（210x297公缓） 經Printed by the Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (Implementation Mode 7) In the melting furnace of Shangye, 'in addition to setting the oxygen feed rate to 9500Nlt | S / hour, the coal coke feed rate is 120kg / min.' Melting was performed in the same manner as in Example 1 except that the amount was 仏 8 and the unit coke amount was 36 kg / t. The air blowing locations, blowing conditions, and results are shown in Table 3. According to the examples, Tables 3 to 18 are all within the scope of the present invention. This paper size applies the Chinese National Standard (CNS) A4 specification (210x297).

貝 工 合 作 社 印 製 4 6299 0 at _ _B7五 '發明説明（:16) 而比較例5〜δ均在本發明之範圍外’比較例5〜7使熔解爐 形成密閉形態，其中比較例5、δ均Μ —段施行空氣之吹入 ，而比較例7並未施行空氣之吹人。再者5比較例8係施行 習知之分批操作之例子。 由表3之結果確認下述事實**本發明由於使廢鐵經常存 在於熔解爐及預熱塔内並且得以良好之效率使未燃燒C0氣 體燃燒，實現离度之廢鐵舍熱效率.*而有可能降低單位用 電量。尤其在空氣吹入位置及空氣吹入量均設於較佳範圍 内之實施例10、實施例11、實施例14之情況，按平均之 tap-tap約37分鐘得到熔鋼120噸’在簞位用氧量45Hm3 /t 及單位用焦量36kg/t之條件下，得到單位用電量120ktfh/t ，其與未應用本發明之比較例相較*單位用電量之減 少量達80〜150kVfh/t之多。 表3 實施例 比較例 10 11 12 13 14 15 16 17 18 5 6 7 8 二次燒空氣(Νηι3/分鐘) 570 570 570 570 570 570 570 360 720 570 570 0 0 空氣吹入位置及吹入 量(Nm3/分鐘） A 285 190 180 570 B 285 285 190 190 180 180 570 C 285 285 190 190 180 180 E 285 190 190 180 G 285 190 I 285 190 單位用電量(kWh/1) 120 120 140 175 120 150 170 185 200 200 240 245 270 單位用焦量(kg/t) 36. 1 36 36 36.2 35.9 36 36.2 39 42.2 42 36 26 37 Tap-Tap(分鐘） 37 37.1 38.2 40 37 38.5 39.5 40.5 43.5 43 46.1 b.9 廢氣組成 (除去N2後之殘餘分） 00(%) 0.45 0.45 0.5 0. 55 0.45 0.45 0.55 ^3.5 0.1 0.42 0.53 41 — C〇2(%) ?9.2 99.15 99.1 99 99.15 99.15 99 ^6.5 77.4 99.3 99. 12 53.5 — 〇2(%) 0.35 0.4 0.4 0.45 0.4 0.4 0.45 0 22.5 0. 28 0.35 5.5 — 附註 分批 成 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 請 先 閲Printed by Beigong Cooperative 4 6299 0 at _ _B7 Five 'Invention Description (: 16) and Comparative Examples 5 to δ are outside the scope of the present invention' Comparative Examples 5 to 7 make the melting furnace into a closed form, of which Comparative Example 5, [delta] M—The blowing of air was performed in section, while the blowing of air was not performed in Comparative Example 7. Furthermore, Comparative Example 8 is an example of performing a conventional batch operation. From the results in Table 3, the following facts are confirmed. ** The present invention achieves thermal efficiency of scrap iron sheds because the scrap iron is often present in the melting furnace and the preheating tower and the unburned CO gas is burned with good efficiency. It is possible to reduce the unit power consumption. Especially in the case of Example 10, Example 11, and Example 14 where the air blowing position and the air blowing amount are set within a preferable range, 120 tons of molten steel is obtained at an average tap-tap of about 37 minutes. Under the conditions of oxygen consumption of 45Hm3 / t and 36kg / t of coke, the unit electricity consumption is 120ktfh / t. Compared with the comparative example to which the present invention is not applied, the reduction in unit electricity consumption is 80 ~ 150kVfh / t. Table 3 Examples Comparative Examples 10 11 12 13 14 15 16 17 18 5 6 7 8 Secondary firing air (Nm3 / min) 570 570 570 570 570 570 570 360 720 570 570 0 0 0 Air blowing position and blowing amount ( Nm3 / min) A 285 190 180 180 570 B 285 285 190 190 180 180 570 C 285 285 190 190 180 180 E 285 190 190 180 G G 285 190 I 285 190 Unit power consumption (kWh / 1) 120 120 140 175 120 150 170 185 200 200 240 245 270 Unit focus (kg / t) 36. 1 36 36 36.2 35.9 36 36.2 39 42.2 42 36 26 37 Tap-Tap (minutes) 37 37.1 38.2 40 37 38.5 39.5 40.5 43.5 43 46.1 b. 9 Exhaust gas composition (residue after removing N2) 00 (%) 0.45 0.45 0.5 0. 55 0.45 0.45 0.55 ^ 3.5 0.1 0.42 0.53 41 — C〇2 (%)? 9.2 99.15 99.1 99 99.15 99.15 99 ^ 6.5 77.4 99.3 99 12 53.5 — 〇2 (%) 0.35 0.4 0.4 0.45 0.4 0.4 0.45 0 22.5 0. 28 0.35 5.5 — Note Batch cost Paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) Please read first

意 事 面 之 注Notes on the matter

462990 A7 B7 五、發明説明（37) (實施態樣8) 使用一具有互相直接連接之熔解爐（爐徑7. 2ib，高度4b) 及預熱塔（5mWX3iBDx7iBH)之直琉甯弧設備，.以將廢鐵150 噸裝入該直流電弧設備之熔解爐內及預熱塔内，在熔解爐 藉28时石墨電極按最大600V，100kA之電源容量彩成電弧 ，K使廢鐵熔解。再者，將水冷吹管從設在爐側壁.之作業 口插入，由此按95 00 Νπι3 /小時之量進給氧氣。 如第18圔所示*在預熱塔202之下部K 一段（4個部位）設 有空氣（充作含氧氣氣體）導入用之氣體導入口 216*又設 計至可藉作業門215來調節空氣侵入熔解爐201之量。然後 ，從作業門21 5及氣體導人口 216供給空氣Μ使C0燃燒。此 際之合計之二次燃燒空氣量及各部位之〇d(=c〇z/(co2 + C0))值乃示於表4中。再者，測定此時之單位用電量及預 熱塔上部之氣體組成。 再者，在爐内之熔鋼量稹多時，將煤焦按120kg/分鐘嗔 入熔渣中，K進入造渣操作，而使石墨電極之先端淹沒於 所胗成之熔渣中。將此時之電壓設定為400V。當預熱塔内 之廢鐵隨著熔解爐內之廢鐵之熔解而下降時，從預熱塔上 部由廢鐵裝料斗供給廢鐵，K保持預熱塔内之廢鐵高度為 一定之高度。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） ^ ^^.、trii 「. 、丨 (請先閲讀背面之注意事項备填寫本頁) 經濟部中央橾準局貝工消費合作社印製 經濟部中央榇準局員工消費合作社印製 46299 0 A7 B7五、發明説明（3S) 如ft，在一使廢鐵連纊存在於熔解爐内及預熱塔内之狀 態下進行熔解，而在熔解爐內產生之熔鋼量達到180噸之 階段時，使60噸之熔鋼留存於爐内，而使相當於一次裝料 分之熔鋼120噸從出鋼口出爐於鍋式盛插內。出爐時之熔 鋼溫度為1550 °C。熔鋼中之C濃度為0.11。 出鋼口附近之熔鋼係被氧氣-油燃燒器加熱者。 在120噸出鋼後亦在供給'氣氣及噴射煤焦之下施行造渣 操作Μ繼縝熔解，而反覆其熔解爐內之熔鋼量再次達到 180噸時出鋼120噸之操作。表4之結果展示反覆此項熔解 之5次裝料之平均值ΰ又按，表4之實施例19在本發明之範 園内，而比較例9在本發明之範圚外。在比較例9之情況， 熔解爐之0D為0 . 7Κ上。 由表4之結果確認實施例1Q實琨高度之躂鐵預熱效率， 而有可能降低單位用電量之事質。在本實施例之情況，按 平均之tap-tap約40分鐘得到熔鋼120噸，在單位用氧量 36Mib3 /t及簞位用焦量26kg/t之條件下，得到單位用電量 175kWh/t。另一方面，在比較例9之情況，雖然其單位用 (請先閲讀背面之注意事項Ϊ寫本頁) 例事 施情 實之 於 難 低困 量作 4 電操表 之 等 著 附 融 熔 及 障 故 備 設 生 發 次 多 但 本紙張尺度適用中周國家標準（CNS > A4規格（210X297公釐） 4 6299 0 a? B7五、發明説明（33) 實施例19 比較例9 爐内 od(=c〇2/(co2+co)) 0·5 0. 85 二次燃燒空氣(Nm3/分鐘） 190 60 單位用電量(KWh/1) 175 170 單位用焦量(Kg/t) 26 26 Tap-Tap(分鐘） 40 40 廢氣組成（除去N2後之殘餘分） C0(%) 0.4 0.3 co2(%) 99· 2 99.4 〇2(%) 0.4 0·3 特提事項 — 瀘蓋之損傷大，發 生廢鐵之嫁融附著 經濟部中央標準局員工消費合作社印製 其次，關於本發明之其他實施形態，在參照第20圖至第 21圆之下，加Μ說明。在本實跑態、鴣中，使熔解爐301之 渣門315充作一作業門，被用Μ容許空氣侵入熔解爐301者 *起作用，即在熔解處理中打開此作業門315 Μ容許空氣 侵入熔解爐301，而在熔解爐201內使未燃燒之C0廢氣一部 分燃燒。然後，利用含氧氣氣體，來自被設在一從熔解爐 301内之熔鋼液面位置至預熱塔302之廢鐵上端位置之範圍 內之氣體導入口 316者，使未燃燒之C0廢氣之殘餘部分燃 燒。 如此容許空氣侵入熔解爐301時*爐内所產生之高溫C0 氣體則有一部分因侵入之空氣之作用而燃燒，但係在熔解 爐301内發生燃燒*不會造成未熔解餒鐵層内之局部高溫 ，亦不會發生廢鐵之熔融附著。再者，在廢氣進入預熱塔 302之前，上述氣體之熱在熔鋼面至預熱塔202下端位置之 間被轉移於廢鐵303，而廢氣在進人預熱塔302之際，已降 溫至不引起熔融附著之溫度。然後，在預熱塔302內，氣 體之熱被轉移於廢鐵303，因此在預熱塔3 02内之廢鐵上端 面近旁使殘餘C 0氣體燃燒時亦同樣，騷氣溫度並不高，從 (請先聞讀背面之注意事項疮球寫本頁) -裝· 訂 -線 本紙張尺度適用中周國家標準（CNS ) Α4規格（210X297公釐） 4 6299 0 a? ___B7 五、發明説明（4G) 而該部分亦不會發生局部之熔融附著。前逑實施形態由於 基本上在廢鐵存在之部分使co氣體燃燒，多少有可能造成 廢鐵之熔融附著<現象>，但本實施形態可約略完全防止 廢鐵之熔融附著<現象> 〇 再者，在適當設定氣體導入口 316之位置*調節含氧氣 氣體之供給量，且調節熔解爐301内之燃燒比率時，可將 預熱塔302之出P附近即排_氣部30 2.a之部分之廢氣溫度控 制於指定溫度Μ上之溫度，因此在其後使薛氣急冷卻可防 止戴奥辛（dioxin)所代表之芳番族氮化合物等之有害物質 之產生，Μ及白煙、惡臭之產生。 在本實施態樣中，藉所侵入之空氣使C0廢氣一部分在溶 解爐301燃燒之際，Μ可達成OD<0,7(設0D為C0^(C02 + C0)之場合）之方式在熔解爐301内使未燃燒CO氣體燃燒。 若0D值為0.7 Μ上，殘存C0量則變少*因此，即使令殘餘 C0在預熱塔2之最上部燃燒，亦無法使廢氣溫度達到所指 定之溫度，即具體而言*使上述有害物質分解之750C Μ 上之溫度。較佳的是，設定0D < 0.6。 經濟部中央標準局員工消費合作社印製 如此，在本實施態樣中，由於在熔解爐301内使未燃燒 之C0氣體一部分燃燒，與前述之實施形態相較，更可確實 防止因燃燒氣體溫度變為高溫致使廢鐵30 3熔融附著之情 事，如在廢鐵層303之一部位燃燒之場合所發生者，亦同 樣不會發生由燃燒所產生之C〇z之解離而產生之情事。 又坷控制C0氣體中被用Μ使侵入熔解爐301内之空氣燃燒 之C0分與被用Μ使吹人廢鐵303之含氧氣氣體燃燒之C0分 43 (請先閎讀背面之注意事項ί寫本頁} 本紙張尺度適用中國國家標準（CNS > Α4規格（210X297公釐） 462990 A7 B7 經濟部中央標準局員工消費合作社印製 五、 發明説明 (41) 之 比 率 9 並 且可將含氧 氣氣體按指定量供給於廢鐵303之 指 定 部 位 > 因此其控制 性良好，可確實K高效率燃燒，可 將 預 熱 塔 302之出口附近之廢氣溫度控制於指定溫度K上。 再 者 r 如 第21圖所示 ，與至此所述之實施形態不同的是 在 本 實 施 形態中，未 燃燒之C0廢氣已在熔解爐301內燃 燒 —» 部 分 > 因此其氣體 導入口 316僅設置一段亦可。當然 ， 設 置 複 數 段茆可。與 至ιώ所逑之實施彤態一樣，在提高 排 氣 部 302a 之部分之廢 氣溫度以達到指定溫度Κ上之觀點 上 氣 體 Μ 入口 316最好能存在於預熱塔302之上端面近旁 〇 具 體 而 Λ·， Β ，較佳的是 ，氣體導入口 3〗6至少彩成於從預 熱 塔 302之廢鐵上端面近旁起至其2ra下方位置之間。 如 此 設 置 一段氣體導 入口 316之場合，及設置複數段氣 體 導 入 P 316而其氣體導入量少之場合，0D值最好能滿足 0 . 3 < 0D ^ >在此等場合， 若0D值為0. 3以下*則造成預熱塔 30 2内之氣體熱量不足 而無法充分施行廢鐡之預熱。更 佳 的 是 > 設 定 0 . 4 < 0D = 在 本 實 施 態樣亦同樣 ，當廢鐵之熔解進展至指定量之熔 鋼 積 聚 於 爐 內時，在保 持廢鐵連鑛存在於熔解爐301内及 預 熱 塔 30 2内之狀態下 使熔解爐3 0 1傾動Μ將相當於一次 裝 料 分 之 熔 鋼從出銅口 314出爐於鍋式盛捅等。從而*同 樣 有 可 能 將 廢鐵預熱至 比習知之熔解設備所達成者為高之 溫 度 0 此 外 9 與 至此所述之 實施態樣一樣，由於Μ經常可保持 廢 鐵 303連續存在於熔解爐301内及預熱塔302内之狀態之 請 先 閱 本纸浪尺度逋用中周國家榇準（CMS )八4規格（210Χ297公釐） © 之 注 意 事 項 ί 寫、 本 頁 462990 ^ 經濟部t央標準局員工消費合作衽印製 五、發明説明（θ) 方式將廢鐵303供給於預熱塔302’廢氣之預熱廢鐵之效率 較高，而在烙解中及出鋼時’使一次裝料量之50%>乂上之 鼷鐵連續存在於熔解爐301内及預熱塔2内時’該預熱效 率則會變得非常高。 再者，關於Μ產生C0為目的而與輔助熱·源（如煤焦等）進 行之反應上，以及Μ造渣為目的之金屬氧化上’所使用之 氧氣之供給量亦同樣* \最_能為2 _5‘N m 3 /1 Jj(上，而Μ 4 0 H m 3 /t更佳。 (實施態樣9) 使用一具有互相直接連接之熔解爐（爐徑7.2m*高度4ιπ) 及預熱塔（51!11^31〇1)><71!110之直流電强設備*以將躂鐵150 噸裝入該直流電弧設備之熔解爐內及預熱塔内，在熔解爐 藉28时石墨電極按最大600V，100kA之電源容量形成電弧 ，Μ使駿織熔解。再者*將水冷吹管從設在爐側壁之作業 口插人，由此按9 50 OHm3 /小時之量進給氧氣。 如第22圖所示，在熔解爐301之熔鋼液面上方之側壁（離 熔解爐上端1.5ra之下方）側面Ml段（A) 4個部位，Μ及在預 熱塔302之塔下部500mm之位置起按如圖所示之間隔以5段 (B，C，D，E，卩）各4個部位，設有總共6段之噴嘴（氣體導 人口）316，被用Μ將空氣吹入熔解爐301、預熱塔302。將 空氣在表5所示之分配下，從各噴嘴吹人，而調査此時之 單位用電量*預熱塔上部之廢氣溫度，蕺奥辛等之有害物 質之產生狀況，以及所附帶之白煙、惡臭之狀況。 此外，當爐内之熔鋼量積多時，將煤焦按120kg/分鐘嗔 本紙張尺度適用中周國家榡率（CNS ) A4规格（210X29?公釐） ' 'i. (请先聞讀背面之注意事項再€^··本頁) /..裝. -·!! 線- 4 6299 0 A7 B7 五、發明説明（1:3) (請先聞讀背面之注意事項再填寫本頁) 入熔渣中，以進入造渣操作*而使石墨電極之先端淹沒於 所彤成之熔渣中。將此時之電壓設定為40 0V。當預熱塔内 之廢鐵隨著熔解爐内之廢鐵之熔解而下降時，從預熱塔上 部由廢鐵裝料斗供給廢鐵，Μ保持預熱塔内之廢鐵高度為 —定之高度。 如此，在一使廢鐵連孃存在於熔解爐内及預熱塔內之狀 態下進行熔解，.而在熔解ώ内產生·之熔鋼量達到18 0噸之 階段時，使60噸之熔鋼留存於爐内*而使相當於一次裝料 分之熔鋼120噸從出鋼口出爐於鍋式盛桶内。出爐時之熔 鋼溫度為1550它。烙鋼中之C濃度為0.1S。 出鋼口附近之熔鋼係被氧氣-油燃燒器加熱者。 經濟部中央標準局員工消費合作社印製 在120噸出鋼後亦在供給氧氣及噴射煤焦之下施行造渣 操作以繼鑛熔解，而反覆其熔解爐內之熔鋼量再次達到 180噸時出鋼120噸之操作。表5之結果展示反覆此項熔解 之5次裝料之平均值。又按|表5之實施例1〜3均在本發明 之範圍内，而比較例1〜3均在本發明之範圍外。比較例1 〜3均為其預熱塔出口之廢氣溫度低之例子。比較例3使熔 解爐形成密閉狀態*並且未施行空氣之吹人。 由表5之結果確認下述事實：實施例可令預熱塔出口之 廢氣溫度達到900 °C Μ上，從而可實現約略0之有害物質（ 如戴奥辛等）產生量，而可消除白煙、惡臭之產生。與此 相對地，預熱塔出口溫度低之各比較例均產生大量之有害 物質，而亦產生白煙、惡臭。 再者，亦確認下述事實：在實施例之情況，由於使廢鐵 46 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） ‘4 62 99 0 A? B7 五、發明;説明（Ή) 經常存在於熔解爐及預熱塔內並且得Μ使未燃燒C0氣體發 生二次燃燒*實現高度之廢鐵預熱效率，而苛降低單位用 電量。此等實施例皆Κ平均約3?分鐘之tap-tap時間得到 熔鋼120噸，而在單位用氧量45^3 /t及單位用焦量 36ks/t之條件下，得到單位用電量155〜170kWh/t，其與 未陁行空氣之吹入之比較例3相較*單位用電量之減少量 達 75ktfh/t之多。 .' · 出爐之120噸熔鋼藉盛桶精煉爐（LF)升溫至1620Ό 經過連續鑄造而製得175X 175mm之小鋼坯。 (請先聞讀背面之注意事項再r寫本頁) 裝· 訂 經濟部中央標準局員工消費合作社印製 47 本紙張尺度適用中周國家標準（CNS ) A4規格（210X297公釐） 4 6 2 9 9 0 A7 B7 五、發明説明（45 ) 弄5 實施例 比較例 1 2 3 1 2 3 二次燃燒空氣(ΝηΛ分鐘） 570 570 570 570 570 0 空氣吹入位置及吹入量 (Nm3/分鐘） A 285 B 285 190 C 285 190 190 D 285 190 E 190 F 285 285 190 單位用電量(kffh/t) 155 170 170 130 140 240 單位用焦量(kg/1) 36. 1 36 36 36.2 35.9 36 Tap-Tap(分鐘） 37 37.3 37. 6 36.2 37 48.6 蕷熱塔出口氣體溫度rc) 955 960 925 320 395 125 白煙、惡臭之程度 無 有 戴奥辛等之有害物質 1/500-1/15001 1 (請先鬩讀背面之注意事項再C寫本頁) 經濟部中央標準局員工消費合作社印製 48 1 Μ比較例為1。 (實施態樣10) 使用一具有互相直接連接之熔解爐（爐徑7·2η1，高度4ra) 與預熱塔（5mWx3fflDx7mH)之直流雷弧設備，Μ將廢鐵150 噸裝λ錄直流電弧設備之熔解魃内及預熱塔内，在 '熔解爐藉 28吋石墨電極按最大6〇〇V，10〇kA之電源容量形成電弧’ Μ使廢鐵熔解。再者，將水冷吹管從設在爐側壁之作業口 插入，由此按9500Niq3 /小時之畺進給氧氣。 如第21圖所示，在預熱塔302中從廢鐵上端面至其2m下 方之位置之間以一段（4個部位）設有空氣（充作含氧氣氣體 )導入用之氣體導入口 316，又設計至有可能藉作華門315 本紙張尺度適用中囷國家標準（CMS ) A4規格（210X297公釐） 46299 Ο Α7 Β7 經濟部中央標準局員工消費合作社印製 五、 發明説明 (4G ) 1 1 來 調 節 空 氣 侵 入 熔 解 爐 30 1之量。然後，從作業門315及氣 1 1 體 導 入 Ρ 316供給空氣K使C0燃燒 >此際之合計之二次燃 1 1 燒 空 氣 .量 及 各 部 位 之 0D (=C 0 2 / (C0 2+ C0))值乃示於表6中 請 先 1 i 0 再 者 3 測 定 此 時 之 單 位 用 電 量， 預熱塔上 部之廢氣溫度 聞 讀 背 1 1 > 戴 奥 等 之 有 害 物 質 之 產 生 狀況 ，以及所 附帶之白煙、 之 注 ί 惡 臭 之 狀 況 〇 意 .事 項 1 再 者 在 爐 内 之 熔 鋼 量 m 多 時， 將煤焦按 120kg/分鐘噴 哥' 1 λ I 裝 1 入 熔 渣 中 9 進 入 造 渣 操 作 而使 石墨電極 之先端淹沒於 本 頁 所 彤 成 之 熔 渣 中 〇 將 此 時 之 電 壓設 定為400V 。當預熱塔内 1 1 之 m 鐵 隨 著 熔 解 爐 内 之 廢 鐵 之 熔解 而下降時 ，從預熱塔上 1 I 部 由 廢 Λ+fj 鐵 裝 科 斗 供 給 廢 鐵 以 保持 預熱塔内 之廢鐵高度為 1 1 訂 — 定 之 高 度 〇 1 如 此 在 一 使 廢 鐵 連 镰 存 在 於熔 解爐內及 預熱塔内之狀 1 1 態 下 進 行 熔 解 而 在 熔 解 爐 內 產生 之熔鋼量 達到180噸之 1 | 階 段 時 使 60 m 之 熔 鋼 留 存 於 爐内 ，而使相 當於一次裝料 I .·- ·. ν線 分 之 熔 鋼 120噸從出鋼口出爐於鍋式盛桶内c 出爐時之熔 }[ 鋼 溫 度 為 1 550 ¾ 〇 熔 鋼 中 之 C濃度為0 , 1%。 1 出 ΛΡΤ 鋼 Π 附 近 之 熔 鋼 係 fix 氧 氣 -油燃燒器加熱者。 1 在 120噸出鋼後亦在供給氧氣及噴射煤焦之下施行造渣 1 | 操 作 Μ 繼 禳 熔 解 而 反 覆 其 熔 解爐 肉之熔鋼 量再次達到 1 I 180噸時出鋼120 噸 之 操 作 0 表 6之結果展示反覆此項熔解 1 1 1 之 5次裝料之平均值 ，又按 表6之 實胞例4在本發明之範 ' 1 i 圍 内 9 而 比 較 例 - 5在 本 發 明 之範 圍外。比 較例4之熔解 t 1 爐 之 0D為 0 . 7M上 比較例5使 熔解 爐形成密 閉狀態並且未 1 1 本紙張尺度適用中周國家標準（CNS ) Α4規格（210X297公釐） 46299 0 五、發明説明（π) 將空氣從氣體導入口吹入，因此，此等比較例均示其預熱 塔出口之廢氣溫度低。 由表6之結果確認下述事賁：實施例4可令預熱塔出口之 廢氣溫度達到900¾ Μ上，從而可實現約略〇之有害物質（ 如戴奥辛等）產生量，而可消除白煙、惡臭之產生。與此 相對地，預熱塔出口溫度低之比較例4、5均產生大量之有 I * 害锪質，而亦產生白煙、惡臭。’ 施 實 在 實 事 述 下 認 確 亦 者 再 且 並 内 塔 熱 預 3J 及 爐 解 熔 於 在 存 常 經 鐵發 廢體 使氣 於CO 由燒 ， 燃 況未 情使 之M 例得 ------：-----裝-- (請先閲讀背面之注意事項一^:寫本頁) 率P-效ta 熱之 預鐘 鐵分 廢37 之約 度均 高平 現 Μ 實例 ,.施 燒實 燃本 次。 二量 生電 用 位 單 低 降 可 而 鋼 熔 到 得 間 時 線. 120噸，而在簞位用氡i：45Hii3 /t及單位用焦量36kg/t之條 件下，得到單位用電量155kWh/t，其與未施行空氣之吹人 之比較例5相較，簞位用電量之減少量達85kWh/t之多。出 爐之120噸熔鋼藉盛捅精煉爐UF)升溫至16 20 ΐ：，Μ經過 連縝鑄造而製得175Χ 175iom小鋼坯。 表6 經濟部中央標隼局員工消費合作社印製 實施例 比較例 4 4 5 二次燃燒空氣(Nm3/t) 570 570 0 0D(=C02/(C02+C0)) 溶解爐内 0.6 0.8 0.4 預熱塔中心部 0. 6 0.8 0.8 預熱塔出口 1 1 1 單位用電量(KWh/t) 155 140 240 單位用焦量(Kg/t) 36. 1 36.2 36 本紙張尺度適用中周國家標準（CNS > A4規格（210X297公釐） g〇 A7 B7 462990 五、發明説明（4 S )462990 A7 B7 V. Description of the invention (37) (Implementation mode 8) A straight Liuning arc device with a melting furnace (furnace diameter 7.2b, height 4b) and a preheating tower (5mWX3iBDx7iBH) which are directly connected to each other. In order to put 150 tons of scrap iron into the melting furnace and preheating tower of the DC arc equipment, when the melting furnace borrows 28, the graphite electrode is colored into an arc with a maximum power supply capacity of 600V and 100kA, and K makes the scrap iron melt. Furthermore, the water-cooled blowing pipe was inserted through an operation port provided on the side wall of the furnace, and oxygen was thus fed at an amount of 95 00 nm / hour. As shown in Fig. 18 * * A gas inlet 216 for introducing air (filled with oxygen-containing gas) is provided in the K section (4 locations) of the lower part of the preheating tower 202 *, and it is designed to adjust the air by the operation door 215 The amount of penetration into the melting furnace 201. Then, air M is supplied from the operation door 21 15 and the gas guide population 216 to burn CO. Table 4 shows the total amount of secondary combustion air and the od (= coz / (co2 + C0)) value of each part. Furthermore, the unit electricity consumption and the gas composition in the upper part of the preheating tower were measured at this time. Furthermore, when the amount of molten steel in the furnace is too large, coal coke is poured into the slag at 120 kg / min, and K enters the slagging operation, so that the tip of the graphite electrode is submerged in the slag formed. The voltage at this time was set to 400V. When the waste iron in the preheating tower falls with the melting of the waste iron in the melting furnace, the waste iron is supplied from the upper part of the preheating tower by the scrap iron hopper, and K keeps the height of the waste iron in the preheating tower to a certain height . This paper size applies to China National Standard (CNS) A4 specification (210X 297 mm) ^ ^^., Trii "., 丨 (Please read the notes on the back first and fill in this page). Cooperative printed by the Central Economic and Technical Bureau of the Ministry of Economic Affairs, printed by the Consumer Cooperative, 46299 0 A7 B7 V. Description of the invention (3S) Such as ft, melting in a state where scrap iron flail exists in the melting furnace and the preheating tower When the amount of molten steel produced in the melting furnace reaches 180 tons, 60 tons of molten steel is left in the furnace, and 120 tons of molten steel equivalent to one charge is discharged from the tap hole in a pan type. Inserted. The temperature of the molten steel when it is released is 1550 ° C. The concentration of C in the molten steel is 0.11. The molten steel near the tap is heated by an oxygen-oil burner. It is also supplied after 120 tons of steel 'The slag-making operation is performed under the gas and the injected coal coke, followed by the melting operation, and the operation of 120 tons of steelmaking when the amount of molten steel in the melting furnace reaches 180 tons again. The results of Table 4 show the results of this repeated melting. The average value of 5 charges is again pressed. Example 19 in Table 4 is within the scope of the present invention. Comparative Example 9 is outside the scope of the present invention. In the case of Comparative Example 9, the 0D of the melting furnace is 0.7 K. From the results in Table 4, it is possible to confirm the preheating efficiency of the iron at the actual height of Example 1Q. The quality of reducing the unit electricity consumption. In the case of this example, the average tap-tap is about 40 minutes to obtain 120 tons of molten steel, the oxygen consumption per unit is 36Mib3 / t, and the coke consumption at the unit is 26kg / t. The unit electricity consumption is 175 kWh / t. On the other hand, in the case of Comparative Example 9, although the unit is used (please read the precautions on the reverse side and write this page). Operation 4 There are many occurrences of electrical operation meters with attached fuses and faults, but this paper size applies the national standard of the week (CNS > A4 specification (210X297 mm) 4 6299 0 a? B7 V. Description of the invention ( 33) Example 19 Comparative Example 9 Inside the furnace od (= c〇2 / (co2 + co)) 0 · 5 0. 85 Secondary combustion air (Nm3 / min) 190 60 Electricity consumption per unit (KWh / 1) 175 170 Coke consumption per unit (Kg / t) 26 26 Tap-Tap (minutes) 40 40 Exhaust gas composition (residual content after removing N2) C0 (%) 0.4 0.3 co2 (%) 99 · 2 99.4 〇2 (%) 0.4 0 · 3 Special mentions—the damage to the cover is large, and the scrap iron is married and attached to the Central Consumers Bureau of the Ministry of Economic Affairs. It is printed by the Consumer Cooperative. Secondly, for other embodiments of the present invention, refer to Section 20 Below the 21st circle, add M to explain. In this actual running state, the slag door 315 of the melting furnace 301 is used as an operation door, and those who allow air to invade the melting furnace 301 with M will function, that is, Opening the operation door 315M during the melting process allows air to enter the melting furnace 301, and partially burns the unburned CO exhaust gas in the melting furnace 201. Then, using the oxygen-containing gas from the gas introduction port 316 provided in a range from the molten steel liquid level position in the melting furnace 301 to the upper end position of the scrap iron of the preheating tower 302, the unburned CO The remainder burned. When air is allowed to intrude into the melting furnace 301 *, part of the high-temperature C0 gas generated in the furnace is burned due to the effect of the invading air, but the combustion occurs in the melting furnace 301. * It will not cause unmelted parts of the iron layer. At high temperatures, fusion of scrap iron does not occur. Furthermore, before the exhaust gas enters the preheating tower 302, the heat of the gas is transferred to the scrap iron 303 between the molten steel surface and the lower end of the preheating tower 202, and the exhaust gas has cooled down when it enters the preheating tower 302. To a temperature that does not cause melting adhesion. Then, in the preheating tower 302, the heat of the gas is transferred to the scrap iron 303, so when the residual C0 gas is burned near the upper end face of the scrap iron in the preheating tower 302, the temperature of the gas is not high. From (please read the precautions on the back first to write this page)-binding · binding-thread paper size applicable to the National Standards (CNS) Α4 specifications (210X297 mm) 4 6299 0 a? ___B7 V. Description of the invention (4G) And local melting adhesion does not occur in this part. In the former embodiment, because the co gas is basically burned in the part where the scrap iron exists, the fusion adhesion of the scrap iron may be caused to some extent. However, this embodiment can almost completely prevent the fusion adhesion of the scrap iron. ≪ phenomenon > 〇 Furthermore, at the appropriate setting of the position of the gas introduction port 316 * When adjusting the supply amount of oxygen-containing gas, and adjusting the combustion ratio in the melting furnace 301, the preheating tower 302 can be exhausted near the exit P to the gas part 30 The temperature of the exhaust gas in part 2.a is controlled at the specified temperature M. Therefore, the rapid cooling of Xue Qi afterwards can prevent the production of harmful substances such as aromatic nitrogen compounds represented by dioxin, M and white smoke. , The production of stench. In this embodiment, when a part of the C0 exhaust gas is burned in the melting furnace 301 by the invaded air, M can achieve OD < 0,7 (where 0D is C0 ^ (C02 + C0)) and melts. The furnace 301 burns unburned CO gas. If the value of 0D is 0.7 M, the amount of residual C0 will be reduced *. Therefore, even if the residual C0 is burned in the uppermost part of the preheating tower 2, the exhaust gas temperature cannot reach the specified temperature, that is, specifically * the above is harmful Temperature at which 750C Μ decomposes the substance. Preferably, 0D < 0.6 is set. This is printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. In this embodiment, because the unburned C0 gas is partially burned in the melting furnace 301, compared with the previous embodiment, the temperature due to the combustion gas can be reliably prevented. Increasing the temperature to cause the scrap iron 303 to melt and adhere, such as occurs in the case of burning in a part of the scrap iron layer 303, will not occur as a result of the dissociation of Coz generated by the combustion. Also control the C0 point in the C0 gas that is used to burn the air that has penetrated into the melting furnace 301 and the C0 point that is used to burn the oxygen-containing gas that blows waste iron 303. 43 (Please read the precautions on the back first. Write this page} This paper size applies to Chinese national standards (CNS > A4 size (210X297mm) 462990 A7 B7 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 5. The ratio of invention description (41) 9 and can contain oxygen The gas is supplied to the designated portion of the scrap iron 303 according to the designated amount > Therefore, its controllability is good, and K can be burned with high efficiency, and the temperature of the exhaust gas near the exit of the preheating tower 302 can be controlled at the designated temperature K. Furthermore, r such as As shown in FIG. 21, the difference from the embodiment described so far is that in this embodiment, the unburned C0 exhaust gas has been burned in the melting furnace 301— »part > . Of course, it is not necessary to set a plurality of sections. As with the implementation of the above-mentioned method, the view is to increase the temperature of the exhaust gas in the exhaust portion 302a to reach the specified temperature K. The upper gas inlet 316 is preferably located near the upper end surface of the preheating tower 302. Specifically, Λ ·, B, preferably, the gas inlet 3 is at least colored on the waste iron from the preheating tower 302. The end face is close to the position below 2ra. When a section of gas introduction port 316 is provided in this way, and when a plurality of sections of gas introduction P 316 are provided and the amount of gas introduction is small, the 0D value should preferably meet 0.3 < 0D ^ > In these cases, if the 0D value is 0.3 or less *, the heat of the gas in the preheating tower 30 2 is insufficient and the preheating of the waste gas cannot be fully performed. It is more preferable to set > 0.4 & lt 0D = The same in this embodiment, when the melting of scrap iron progresses to a specified amount of molten steel accumulated in the furnace, the state of the scrap iron ore existing in the melting furnace 301 and the preheating tower 30 2 is maintained The melting furnace 301 will be tilted to remove molten steel equivalent to one charge from the copper outlet 314 in a pan-type pan, etc. Therefore, it is also possible to preheat the scrap iron to a level higher than that achieved by conventional melting equipment. High temperature 0 In addition, 9 is the same as the embodiment described so far, because M can often maintain the state of the scrap iron 303 continuously in the melting furnace 301 and the preheating tower 302. Please read the standard of this paper first. (CMS) 8-4 specifications (210 × 297 mm) © Note ί Write, page 462990 ^ Printed by the Ministry of Economic Affairs t Central Standards Bureau for consumer cooperation 衽 Printing 5. Invention Description (θ) method to supply scrap iron 303 to preheating Tower 302 'waste gas has higher efficiency in preheating waste iron, and during melting and tapping', 50% of the primary charge is continuously present in the melting furnace 301 and the preheating tower In 2 hours, the preheating efficiency becomes very high. Furthermore, the same applies to the supply of oxygen used in the reaction with the auxiliary heat and source (such as coal coke) for the purpose of producing M0 and the oxidation of the metal for the purpose of producing slag *. Can be 2 _5'N m 3/1 Jj (upper, M 4 0 H m 3 / t is better. (Embodiment 9) Use a melting furnace with a direct connection to each other (furnace diameter 7.2m * height 4m) And preheating tower (51! 11 ^ 31〇1) > &71; 110 DC power equipment * to load 150 tons of iron iron into the melting furnace and preheating tower of the DC arc equipment, in the melting furnace At 28 o'clock, the graphite electrode forms an arc at a maximum power supply capacity of 600V and 100kA, and M causes the weaving to melt. In addition, * the water-cooled blow pipe is inserted from the operation port provided on the side wall of the furnace, so that it is charged at 9 50 OHm3 / hour As shown in FIG. 22, there are 4 locations on the side of the M1 section (A) of the side wall above the molten steel level of the melting furnace 301 (below 1.5ra from the upper end of the melting furnace), and M and the preheating tower 302. From the position of 500mm at the lower part of the tower, there are 4 sections (B, C, D, E, 卩) in 5 sections (B, C, D, E, 卩) at intervals as shown in the figure. Use M to blow the air into the melting furnace 301 and the preheating tower 302. The air is blown from the nozzles under the distribution shown in Table 5, and the unit electricity consumption at this time * the exhaust gas temperature in the upper part of the preheating tower,状况 The occurrence of harmful substances such as Aucin, and the attached white smoke and foul odor. In addition, when the amount of molten steel in the furnace is large, the coal coke will be 120kg / min. Rate (CNS) A4 specification (210X29? Mm) '' i. (Please read the precautions on the back first, then this page) / .. Packing--4 6299 0 A7 B7 V. Description of the invention (1: 3) (please read the precautions on the reverse side and fill in this page) into the slag to enter the slag-making operation *, so that the tip of the graphite electrode is submerged in the slag formed. Set the voltage at this time to 40 0V. When the waste iron in the preheating tower decreases with the melting of the waste iron in the melting furnace, the waste iron is supplied from the scrap iron hopper from the upper part of the preheating tower, and M remains preheated. The height of the scrap iron in the tower is a fixed height. In this way, melting is performed in a state where the scrap iron company exists in the melting furnace and the preheating tower, When the amount of molten steel produced in the melting tank reaches 180 tons, 60 tons of molten steel will be left in the furnace *, and 120 tons of molten steel equivalent to one charge will be discharged from the tap out of the pot. The temperature of the molten steel at the time of baking is 1550. The concentration of C in the soldering steel is 0.1S. The molten steel near the tap is heated by an oxygen-oil burner. The Consumers Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs It is printed that after 120 tons of tapping, the slag-making operation is also performed under the supply of oxygen and injection of coal coke to continue the ore melting, and the operation of 120 tons of tapping is repeated when the amount of molten steel in its melting furnace reaches 180 tons again. The results in Table 5 show the average of 5 charges for this meltdown. According to Table 5 again, Examples 1 to 3 are all within the scope of the present invention, and Comparative Examples 1 to 3 are all outside the scope of the present invention. Comparative Examples 1 to 3 are examples in which the exhaust gas temperature at the outlet of the preheating tower is low. Comparative Example 3 closed the melting furnace * and did not perform air blowing. From the results in Table 5, the following facts are confirmed: the embodiment can make the temperature of the exhaust gas at the exit of the preheating tower reach 900 ° C Μ, so that the amount of harmful substances (such as dioxin, etc.) can be achieved about 0, and the white smoke, The stench is produced. In contrast, each comparative example with a low outlet temperature of the preheating tower produced a large amount of harmful substances, and also produced white smoke and foul odor. In addition, the following facts are also confirmed: in the case of the example, because the scrap iron 46 paper size is applied to the Chinese National Standard (CNS) A4 specification (210X297 mm) '4 62 99 0 A? B7 V. Description; (Ή) It often exists in the melting furnace and the preheating tower and can make secondary combustion of unburned CO gas * to achieve a high degree of scrap iron preheating efficiency, and severely reduce the unit electricity consumption. In these examples, 120 tons of molten steel are obtained at an average tap-tap time of about 3 minutes, and the unit electricity consumption is obtained under the conditions of a unit oxygen consumption of 45 ^ 3 / t and a unit coke consumption of 36ks / t. From 155 to 170 kWh / t, it is 75 ktfh / t as much as the reduction in unit electricity consumption compared with Comparative Example 3 where the air is not blown in. . '· The 120 tons of molten steel out of the furnace was heated to 1620 by a ladle refining furnace (LF). After continuous casting, small billets of 175X 175mm were produced. (Please read the precautions on the back before writing this page) Binding and printing Printed by the Central Consumers Bureau of the Ministry of Economic Affairs Printed by the Consumer Cooperatives 47 This paper size is applicable to the National Standard (CNS) A4 (210X297 mm) 4 6 2 9 9 0 A7 B7 V. Description of the invention (45) Lane 5 Example Comparative Example 1 2 3 1 2 3 Secondary combustion air (NηΛ minutes) 570 570 570 570 570 0 Air blowing position and blowing amount (Nm3 / minute ) A 285 B 285 190 C 285 190 190 D 285 190 E 190 F 285 285 190 190 Unit electricity consumption (kffh / t) 155 170 170 130 140 240 Unit coke consumption (kg / 1) 36. 1 36 36 36.2 35.9 36 Tap-Tap (minutes) 37 37.3 37. 6 36.2 37 48.6 Gas temperature at the exit of the hot tower rc) 955 960 925 320 395 125 White smoke, bad smell No hazardous substances such as dioxin 1 / 500-1 / 15001 1 (Please read the precautions on the back before writing this page.) 48 1 Μ Comparative Example 1 printed by the Employees' Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs. (Implementation mode 10) A DC lightning arc device with a melting furnace (furnace diameter 7 · 2η1, height 4ra) and a preheating tower (5mWx3fflDx7mH) directly connected to each other is used. 150 tons of waste iron is installed in a λ recorded DC arc device. In the melting furnace and the preheating tower, the scrap iron was melted in the melting furnace by forming a 28-inch graphite electrode with a maximum power supply capacity of 600V and 100kA. Furthermore, by inserting a water-cooled torch through an operation port provided on the side wall of the furnace, oxygen was fed at a rate of 9500Niq3 / hour. As shown in FIG. 21, a gas introduction port 316 for introducing air (filled with oxygen-containing gas) is provided in a section (4 locations) from the upper end surface of the scrap iron to a position below 2 m in the preheating tower 302. It is also designed so that it can be borrowed as Huamen 315. This paper size is applicable to Zhongli National Standard (CMS) A4 specification (210X297 mm) 46299 〇 Α7 Β7 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs. 1 1 to adjust the amount of air intrusion into the melting furnace 30 1. Then, the operation door 315 and the gas 1 1 are introduced into the P 316 and the air K is supplied to make C0 burn> At this time, the total secondary combustion 1 1 burns air. The amount and the 0D of each part (= C 0 2 / (C0 2 + C0)) value is shown in Table 6. Please measure 1i 0 and then 3 to measure the unit electricity consumption at this time. The temperature of the exhaust gas in the upper part of the preheating tower should be read back 1 1 > Condition, and the attached white smoke and the odor of the odor. Matter 1. Matter 1 When the amount of molten steel in the furnace is more than m, the coal coke is sprayed at 120kg / min. The slag 9 enters the slagging operation and the tip of the graphite electrode is submerged in the slag formed on this page. The voltage at this time is set to 400V. When the 1 m iron in the preheating tower decreases with the melting of the waste iron in the melting furnace, the scrap iron is supplied from the 1 I part of the preheating tower by the waste Λ + fj iron bucket to maintain the inside of the preheating tower. The height of the scrap iron is 1 1 Order—the specified height 〇 In this way, the amount of molten steel generated in the melting furnace is reached when the scrap iron is melted in the melting furnace and the preheating tower in a state of 1 1 At the stage of 1 of 180 tons, 60 m of molten steel is kept in the furnace, and 120 tons of molten steel equivalent to one charge I. ·-·. Ν is divided out of the tap hole into a pot-type drum. c Melting at the time of firing} [The steel temperature is 1 550 ¾ 〇 The C concentration in the molten steel is 0, 1%. 1 fused steel near ΛΡΤ steel is a fixed oxygen-oil burner heater. 1 Slag-making after 120 tons of tapping is also performed under the supply of oxygen and injection of coal coke 1 | Operation M After the melting of molten iron, the molten steel volume of its melting furnace meat again reaches 1 I, and the operation of 120 tons of tapping is performed at 180 tons 0 The results in Table 6 show the average value of the 5 charges of 1 1 1 repeated this melting, and according to the cell example 4 of Table 6 within the scope of the present invention '1 i 9 and the comparative example-5 in the present invention Out of range. The melting t 1 of the furnace of Comparative Example 4 is 0. 0.7M on Comparative Example 5 forms the melting furnace in a sealed state and is not 1 1 This paper size is applicable to the National Standard (CNS) A4 specification (210X297 mm) 46299 0 V. DESCRIPTION OF THE INVENTION (π) Air is blown in from a gas introduction port. Therefore, these comparative examples show that the temperature of the exhaust gas at the outlet of the preheating tower is low. The results in Table 6 confirm the following: Example 4 can make the temperature of the exhaust gas at the exit of the preheating tower reach 900 ¾ M, so that approximately 0% of harmful substances (such as dioxin, etc.) can be achieved, and white smoke, The stench is produced. In contrast, in Comparative Examples 4 and 5 where the outlet temperature of the preheating tower was low, a large amount of I * harmful substances was generated, and white smoke and malodor were also generated. 'Shi Shi confirmed in the facts that the internal tower heat pre-heating 3J and the furnace were thawed in the existing iron body waste to make the gas burn in CO, and the burning condition did not make it M. Example --- ---: ----- install-(Please read the precautions on the back first ^: write this page) The rate of P-effect ta heat of the pre-clock iron separation waste 37 is very high, and the real-life examples ,. Burning this time. The amount of electricity used for the second generation of electricity can be lowered and the steel can be melted to the time line. 120 tons, and under the conditions of 氡 i: 45Hii3 / t and unit coke capacity 36kg / t, the unit electricity consumption can be obtained. 155kWh / t, compared with Comparative Example 5 without air blowing, the reduction of electricity consumption at niches is as much as 85kWh / t. The 120 tons of molten steel that came out of the furnace was heated to 16 20 ° C by the Shengjing Refining Furnace: Μ was produced by continuous casting to obtain a 175 × 175iom billet. Table 6 Comparative examples of printed examples of employees' cooperatives of the Central Bureau of Standards, Ministry of Economic Affairs 4 4 5 Secondary combustion air (Nm3 / t) 570 570 0 0D (= C02 / (C02 + C0)) Dissolving furnace 0.6 0.8 0.4 Central part of the heat tower 0.6 0.8 0.8 Preheating tower outlet 1 1 1 Unit electricity consumption (KWh / t) 155 140 240 Unit coke consumption (Kg / t) 36. 1 36.2 36 This paper standard applies the national standard (CNS > A4 specifications (210X297 mm) g〇A7 B7 462990 5. Description of the invention (4 S)

Tap-Tap(分鐘） 37 36.2 48. 6 預熱塔出口氣體溫度ra 955 350 125 白煙、惡臭之程度 無 有 有 戴奥辛等之有害物質 1/500-1/1500* 1 1 熔融附著現象 無 無 無 ----------裝-- - '1. (請先閱讀背面之注意事項ί寫本頁) 其次，關於本發明之其他實施彤態，在參照第23圖之下 ，加Μ說明。依照前述之會施彩態.，在一從熔:解爐4 0 1内 之熔鋼液面位置至預熱塔402之廢鐵上端位置之範圍內之 任選之位置上設有複數之氣體導人口 416，但此等氣體導 人口 416不一定要設置。在未設氣體導入口 416之場合’使 未燃燒C0氣體全部在後燃室417燃燒。再者，亦可Μ設置 一管路被用以將熔解爐401所產生之未燃燒氣體導入該後 燃室417，Μ便將未燃燒氣體之一部分不經過預熱塔402即 可供給於後燃室417。 -線I 〇 (實腌態樣11) 經濟部中央標隼局貝工消費合作社印製 使用一具有互相直接連接之溶解爐（爐徑7.2m，高度4m) 及預熱塔（5mWx3raDX7mH)之直流電弧設備，Μ將廢鐵150 噸裝入該直流電弧設備之熔解爐内及預熱塔內，在熔解爐 藉28时石墨電極按最大600V，100U之電源容量彫成電弧 ，以使廢鐵熔解。再者，將水冷吹管從設在爐側壁之作業 口插入，由此按9500Nm3 /小時之量進給氣氣° 如第23圖所示，在熔解爐401之熔鋼液面上方之側壁（離 熔解爐上端1.5m之下方）側面Ml段（A)4個部位’ Μ及在預 熱塔402之塔下部500miii之位置起按如圖所示之間隔Μ4段 本紙張尺度適用中國國家標準（CNS > Α4规格（210Χ297公釐） 經濟部中央標準局員工消費合作社印製 46299 0 at __B7_ 五、發明説明（49) (B，C，D，E)各4個部位，設有總共5段之噴嘴（氣體導入 口）416，被用Μ將空氣吹人熔解爐401、預熱塔40 2，又在 與預熱塔402之排氣部402a連接之後燃室417之上部（F)之 位置設有噴嘴（氣體導人口 M18。將空氣在表7所示之分配 下，從各噴嘴吹入，而調査此時之單位用電量，預熱塔上 部之鼯氣溫度*戴奥辛等之有害物質之產生狀況，Μ及所 附帶之白煙、惡臭之狀況ι 在熔解之際，在爐内之熔鋼量積多時，將煤焦按120kg/ 分鐘噴入瑢渣中 > 以進入造渣操作*而使石墨電極之先端 淹沒於所形成之熔渣中。將此時之電壓設定為400 V。當預 熱塔内之廢鐵隨著熔解爐内之廢鐵之熔解而下降時，從預 熱塔上部由廢鐵裝料斗供給廢鐵，以保持預熱塔内之廢鐵 高度為一定之高度。 如此，在一使廢鐵連續存在於熔解爐内及預熱塔内之狀 態下進行熔解，而在熔解爐内產生之熔鋼量達到180噸之 階段時，使60噸之熔鋼留存於爐内，而使相當於一次裝料 分之熔鋼120噸從出鋼α出爐於鍋式盛桶内。出爐時之熔 鋼溫度為1550 t。熔鋼中之C濃度為0.1%。 出銅口附近之熔鋼係被氣氣-油燃熇器加熱者。 在120噸出鋼後亦在供給氧氣及噴射煤焦之下施行造渣 操作K繼續熔解，而反覆其熔解爐內之熔鋼量再次達到 180噸時出鋼120噸之操作。表7之結果展示反覆此項熔解 之5次裝料之平均值。又按，表7之實施例1〜3均在本發明 之範圜内，而比較例1〜3均在本發明之範圍外。比較例1 本紙張尺度適用中阖國家標準（CNS ) A4規格（210X297公釐）. ^2 (請先閲讀背面之注意事項再4rk本頁) :裝. 訂· 經濟部中央棵準局員工消費合作社印製 46299 0 Α7 Β7 五、發明説明（50) 〜3均未施行”後燃燒"，而均示其預熱塔出口之廢氣溫度 低。比較例3使熔解爐形成密閉狀態，並且未施行空氣之 吹入0 由表7之結果確認下逑事實：實施例可令該後燃室在17所 排出之廢氣溫度達到900t：K上，從而可實規約略〇之有害 物質（如戴奥辛等）產生量，而可消除白煙、惡臭之產生。 與此相對地，預熱塔出口 i度低之.各比較例均產生大量之 有害物質，而亦產生白煙、惡臭。 再者，亦確認下逑事實：在實施例之憧況*由於使廢鐵 經常存在於熔解爐及預熱塔内並且得Μ使未燃燒C0氣儀趙'生 二次燃燒，貿現高度之騣鐵預熱效率，而可降低簞位用電 量。此等實施例皆Μ平均約37分鐘之tap-tap時間得到熔 鋼120噸，而在翬位用氧量45Ηη3 /t及單位用焦量36lcs/t 之條件下，得到單位用電量155〜17〇kWh/t*其與未施行 空氣之吹入之比較例3相較，單位用電童.之減少量達 75kWh/t之多。 出爐之120噸熔鋼藉盛桶精煉爐（LF)升溫至1620 1C * Μ 經過連鑕鑄造而製得175 X 175m β之小鋼坯。 ------_---_---^— .η (請先閲讀背面之注意事項再"填寫本頁) 訂 線| ο 實施例 比較例 1 2 3 1 2 3 二次燃燒空氣(Nm3/分鐘） 570 570 570 570 570 0 空氣吹入位置及吹入量 (Nm3/分鐘） A 285 B 285 190 C 285 190 190 D 285 190 E 190 F 285 285 190 本紙張尺度適用中1國家標準（〇那）八4規格（210父297公釐） ‘46299 0 at ___________B7 五、發明説明（51) 單位用電量ikWh/t) 155 170 170 130 140 240 -單位用焦量(kg/1") 36. 1 36 36 36.2 35.9 36 Tap-Tauf 分鐘） 37 37.3 37.6 36.2 37 48.6 费熱塔出口氣體溫度rc、 935 940 905 320 395 125 勇煙、惡臭之程度 無 有 戴奥辛等之有害物質 1/500-1/1500* 1 (請先閱讀背面之注意事項寫本頁} 车以比較例為1 ' (簧施態樣12) 經濟部t央樣準局員工消費合作社印製 Μ下，關於廢鐵與直接遝原鐵”DRI”（碳濃度— 起被使用於第24圖所示之直流式電胍爐中之實施例加以說 明。在該電弧爐中*熔解室具有爐徑7.2 m及高度4m*預熱 室具有寬度3««，長度5ιπ* K及高度7m，而該爐之容量為 180噸。首先，將30噸之常溫DRI及50噸之常溫廢鐵裝人熔 解室，其次，將70噸之常溫廢鐵裝入預熱室*而使用直徑 30时之石墨所製之上部電極以最大750V，130kA之電源容 量開始熔解。然後，隨著熔鋼之產生，添加生石灰及螢石 以形成熔融渣液，繼之，使來自氧氣吹管之被設定4000 Ha3 /小時之氧氣Μ及來自碳材吹管之被設定5〇kg/分鐘之 煤焦吹入熔融渣液中。由於氧氣及煤焦之吹入’形成路融 渣液*而使上部罨極之先端淹沒於熔融渣液内。將此時之 電壓設定為520〜550V。 其後，將DRI按1.8噸/分鐘連續裝入熔解室内以繼續溶 解。再者，當預熱室内之廢鐵隨著熔解下降時’藉進料斗 將廢鐵裝人預熱室*以保持預熱室內之廢鐵高度為一定之 本紙張尺度適用中周國家標準（CNS ) A4規格（210X297公釐） 5Ί 經濟部中央標準局員工消費合作社印製 4 6299 0 A7 B7 五、發明;説明（52) 高度之同時繼續熔解。然後，在熔解爐内產生之熔鋼量達 到180噸時，停止DRI對熔解室之裝料，待DRI完全熔解後 ，使約60噸之熔鋼留存於熔解室內，而使相當於一次加熱 分之熔鋦120噸從出鋼口出鋼於鍋式盛桶内。出鋼時*藉 重油燃燒器加熱熔鋼。出銅時之熔鋼中之C湄度為O.lwtSi ，熔鑭溫度為1560C。出鋼後，用填砂填充出鋼口 ’然後 再次開始D R I之裝人暨氧氣及煤焦之吹入 < 以反覆實施其 熔鋼量再次達到180噸時出鋼120噸之操作。出鋼後之熔鋼 藉一盛桶精煉爐精煉而开溫至1620¾，然後經過連續鐮造 機鐮造。盛桶精煉爐之單位用電量平均為SOkWh/t ° 其結果，在DRI之配比為70¾之條件下1出鋼至出鋼之時 間平均為65分鐘，而在氧氣吹人量33Nra3 /t及煤焦吹入量 25ks/t之條件下，可按單位用電畺535kWh/t實規熔解。電 弧爐與盛捅精煉爐之合計單位用電量為585 kWh/t。 再者，為了做比較，亦實行下述操作法（比較例1):在 第24圖所示之電弧爐中，將30噸之常溫DRI裝入熔解室， 第24圖所示之電弧爐中，將30噸之常溫DRI裝入熔解室， 其次，將36噸之常溫廢鐵裝入預熱室* Μ開始熔解，而在 產生熔銅時，在未將廢鐵追加裝入之下，將54噸之直接遷 原纖連鑌裝入以得到120噸之熔鋼，而使此熔鋼升溫至 1600Τ後*予Μ出鋼。又按，比較例1中之氧氣吹入量及 煤焦吹入量均與上述實施例12相同，再者，其盛桶精煉爐 之翬位用電量為實施例12及比較例1之操作條件 及操作結果均示於表8中。 本紙張尺度^用中周國家標準（(：>!8>八4規格（210/297公釐> 55 (請先閲讀背面之注意事項t寫本頁) 訂. 線- 46299 Ο 五、發明説明（53) Α7 Β7 羔？t拗作修件妤楢伟結银 -----一 ------ 實施例1 比較例1 對預熱室之廢鐵供給方法 經常填充 每加熱一次 氧氣吹入量(Nm3/t) 33 33 竣材吹入量(Kg/1) 25 25 出鋼溫度(°C) 1560 1600 單位用電量(KWh/1) 電弧爐 535 595 盛桶精煉爐 50 30 合計 585 625 (#先聞讀背面之注$項4^寫本頁) -裝· 如表8所示，在比較例1之情況，電弧爐之單位用電量為 595kWh/t，而其電弧煺與盛桶精煉爐合計之單位用電量為 625kWh/t。如此，與比較例1相較’依照本發明之實施例1 有可能減少40!(¥h/t程度之單位用電量。 (實施態樣13) K下，關於實施例2，將廢鐵與冷銑（碳濃度4.5wU) — 起使用於直流式電弧爐者，加以說明。在該電弧爐中’熔 解室具有燫徑7.2ιο及高度4b，預熱室具有寬度3ra，長度5m ，K及高度7m，而爐容量為180噸。 首先，將30噸之常溫冷銑及50噸之常溫廢鐵裝入熔解室 ，其次，將70噸之常溫廢鐵裝入預熱室’使用直徑30时之 石墨所製之上部電極以最大750V，130kA之甯源容畺開始 熔解。然後，隨著熔鋼之產生，添加生石灰及螢石以形成 熔融渣液，繼之，使來自氧氣吹管之被設定δ0000Νι®3 /小 時之氧氣Μ及來自碳材吹管之被設定8〇ks/分鐘之煤焦吹 冢紙張尺度適用中阖國家標準（CNS ) A4規格（210X297公釐) ^ g 訂_ 經濟部中央標準局員工消費合作社印製 462990 經濟部中央標準局員工消費合作社印製 五、發明说明（54) 入熔融渣液中。由於氧氣及煤焦之吹入，形成熔融渣液， 而使上部電極之先端淹沒於熔融渣液内。將此時之電壓設 定為550P 其後，在預熱室内之廢鐵隨著熔解下降時，藉廢鐵裝料 斗將廢鐵裝入預熱室，以保持預熱室内之廢鐵高度為一定 之高度之同時繼續熔解。然後*在熔解爐内產生之熔鋼量 達到180噸時，使約60噸之溶.鋼留存於熔解室內，而使.相 當於一次加熱分之熔鋼120噸從出鋼口出網於鍋式盛桶内 。出鋼時，藉重油燃燒器加熱熔鋼。出鋦時之熔鋼中之C 濃度為O.lvU，熔鋼溫度為1560¾。出鏑後，用填砂填充 出鋼口，然後將常溫之冷銑30噸直接裝入熔解室之同時再 次開始氧氣及煤焦之吹入* K反覆實施其熔鋼蠆再次達到 180噸時出鋼120噸之操作。出鋼後之熔鋼藉一盛桶精煉爐 精煉而升溫至162〇υ *然後經過連績鐮造機鏞造。盛桶精 煉爐之單位用電量平均為60kWh/t。 其结果*在冷跣之配比為25¾之條件下，出鋼至出鋼之 時間平均為40分鐘，而在氧氣吹人量33Hb3 /t及煤焦吹入 量16kg/t之條件下，可按單位用電量195kWh/t實現熔解。 電弧爐與盛桶精煉爐之合計單位用電量為255k Wh/t。 再者，為了做比較，亦實行下逑各操作法：將30噸之常 溫冷銑及20噸之常溫廢鐵裝入熔解室，其次*將70噸之常 溫廢鐵裝人預熱室而開始熔解，在未將廢鐵追加裝入預熱 室之下，得到120噸之熔鋼，而使此熔鋼升溫至1590°C後 予以出鋼（比較例2);將廢鐵與冷銑之混合物*其中冷銑 本紙張尺度適用中國國家標準（CNS ) Λ4規格（210X297公釐） 裝-- - \J, ( . (請先聞讀背面之注$項1^寫本頁) -訂- .411 -線- 4 6 2 9 9 0 a? B7 五、發明説明（55) 之配比為25¾者（M下稱為π混合物A")，裝入預熱室M開始 熔解*而在預熱室内之混合物A隨著熔解下降時，將丨昆合 物A裝入預熱室，以保持預熱室內之混合物A之高度為—定 之高度之同時繼缅熔解，然後反覆其熔解爐内產生之溶鋼 量達到180噸時使約60噸之熔鋼留存於熔解室内而使相當 於一次加熱分之熔鋼120噸從出鋼口出鋼於鍋式盛桶内之 I · 操作（比較例3)。又按，比較例2及比較例3中.之氧氣吹入 量及煤焦吹人量均與上述實施例2相同*再者*其盛桶精 煉爐之平均單位用電童在比較例2為30k Wh/t而在比較例3 為60kWh/t。實施例2、fcb較例2及比較例3之操作條件及操 作結果均示於表9中。 表9 操作倐侔历操作銪巣 (請先閱讀背面之注意事項t寫本頁) 裝.Tap-Tap (minutes) 37 36.2 48. 6 Pre-heating tower outlet gas temperature ra 955 350 125 Level of white smoke, foul odor No hazardous substances such as dioxin 1 / 500-1 / 1500 * 1 1 No melting phenomenon None ---------- install --- '1. (Please read the note on the back first to write this page) Second, regarding other implementations of the present invention, referring to FIG. 23, Add M instructions. According to the aforementioned state of color application, a plurality of gases are provided at an optional position ranging from the molten steel liquid level position in the melting and melting furnace 401 to the upper end position of the scrap iron in the preheating tower 402. It is not necessary to set such a gas guide population 416. When the gas introduction port 416 is not provided, all the unburned CO gas is burned in the afterburner 417. Furthermore, a pipeline can also be provided for introducing the unburned gas generated by the melting furnace 401 into the afterburning chamber 417, and a portion of the unburned gas can be supplied to the afterburner without passing through the preheating tower 402. Room 417. -Line I 〇 (Solid pickled state 11) Printed by the Central Standardization Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperative, using a direct current with a dissolving furnace (furnace diameter 7.2m, height 4m) and a preheating tower (5mWx3raDX7mH) connected directly to each other Arc equipment, M put 150 tons of scrap iron into the melting furnace and preheating tower of the DC arc equipment. When the melting furnace was borrowed 28, the graphite electrode was carved into an arc with a maximum power supply capacity of 600V and 100U to melt the scrap iron. . In addition, the water-cooled blowing pipe is inserted through the operation port provided on the side wall of the furnace, thereby feeding the gas at an amount of 9500 Nm3 / hour. As shown in FIG. 23, the side wall above the molten steel level of the melting furnace 401 (from the Below the upper end of the melting furnace 1.5m) M1 section of the side (A) 4 locations' M and 500miii at the lower part of the preheating tower 402 at intervals of M4 as shown in the figure. This paper applies Chinese national standards (CNS > Α4 specification (210 × 297 mm) Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 46299 0 at __B7_ V. Description of the invention (49) (B, C, D, E) 4 parts each, with a total of 5 sections The nozzle (gas inlet) 416 is used to blow air into the melting furnace 401 and the preheating tower 402, and the upper part (F) of the combustion chamber 417 is connected to the exhausting part 402a of the preheating tower 402. There are nozzles (gas-conducting population M18. Air is blown in from the nozzles under the distribution shown in Table 7, and the unit electricity consumption at this time is investigated, and the temperature of radon gas in the upper part of the preheating tower * Dioxin and other harmful substances The state of occurrence, the condition of M and the accompanying white smoke and foul smell. When the amount of molten steel is large, the coal coke is sprayed into the slag at 120 kg / min > to enter the slag making operation *, so that the tip of the graphite electrode is submerged in the slag formed. Set the voltage at this time to 400 V. When the waste iron in the preheating tower decreases with the melting of the waste iron in the melting furnace, the waste iron is supplied from the upper part of the preheating tower by a scrap iron hopper to maintain the height of the waste iron in the preheating tower as In this way, in a state where the scrap iron is continuously present in the melting furnace and the preheating tower, and when the amount of molten steel generated in the melting furnace reaches 180 tons, the melting of 60 tons is made. The steel remains in the furnace, so that 120 tons of molten steel equivalent to one charge is taken out of steel α in a pot-type tub. The temperature of the molten steel at the time of heating is 1550 t. The concentration of C in the molten steel is 0.1% The molten steel near the copper outlet is heated by a gas-oil burner. After 120 tons of steel is tapped, the slagging operation is also performed under the supply of oxygen and the injection of coal coke. K continues to melt, and repeatedly in its melting furnace. When the amount of molten steel reached 180 tons again, 120 tons of steel was tapped. The average value of loading. According to Table 7, Examples 1 to 3 in Table 7 are all within the scope of the present invention, and Comparative Examples 1 to 3 are outside the scope of the present invention. Comparative Example 1 This paper scale is applicable to Central and Eastern countries. Standard (CNS) A4 specification (210X297 mm). ^ 2 (Please read the precautions on the back and then 4rk this page): Packing. Ordering · Printed by the Central Consumer Bureau of the Ministry of Economic Affairs and Consumer Cooperatives 46299 0 Α7 Β7 V. Invention Note (50) to 3 are not implemented "post-combustion", but all show that the temperature of the exhaust gas at the exit of the preheating tower is low. Comparative Example 3 caused the melting furnace to be closed, and the blowing of air was not performed. The results confirm the following facts: The embodiment can make the temperature of the exhaust gas discharged from the afterburner at 900t: K at 17, so that the amount of harmful substances (such as dioxin, etc.) can be regulated, and the white smoke, The stench is produced. In contrast, the i-degree at the exit of the preheating tower was low. Each comparative example produced a large amount of harmful substances, but also produced white smoke and foul odor. In addition, the following facts are also confirmed: In the case of the example *, because scrap iron is often present in the melting furnace and the preheating tower and the second combustion of the unburned CO gas meter Zhao'sheng is obtained, the current high level of Rhenium preheating efficiency can reduce electricity consumption in niches. In these examples, 120 tons of molten steel were obtained in an average tap-tap time of about 37 minutes. Under the conditions of an oxygen amount of 45 翚 η3 / t and a unit of coke amount of 36 lcs / t, the unit electricity consumption was 155 ~ 170 kWh / t * Compared with Comparative Example 3 in which no air is blown in, the reduction of electricity consumption per unit is as much as 75 kWh / t. The 120 tons of molten steel that came out of the furnace was heated up to 1620 1C * ML by ladle refining furnace (LF), and then 175 × 175m β small billets were produced through continuous casting. ------_---_--- ^ — .η (Please read the notes on the back before filling in this page) Threading | ο Example Comparative Example 1 2 3 1 2 3 Secondary combustion Air (Nm3 / min) 570 570 570 570 570 0 Air blowing position and amount (Nm3 / min) A 285 B 285 190 C 285 190 190 D 285 190 E 190 F 285 285 190 This paper is applicable to 1 country Standard (〇 that) 8 4 specifications (210 father 297 mm) '46299 0 at ___________ B7 V. Description of the invention (51) Unit electricity consumption ikWh / t) 155 170 170 130 140 240-Unit coke quantity (kg / 1 ") 36. 1 36 36 36.2 35.9 36 Tap-Tauf minutes) 37 37.3 37.6 36.2 37 48.6 Ferro tower outlet gas temperature rc, 935 940 905 320 395 125 The level of smoke and stench No hazardous substances such as dioxin 1 / 500-1 / 1500 * 1 (Please read the notes on the back to write this page first) The car is based on a comparative example of 1 '(spring application state 12) The Ministry of Economic Affairs t Central Prototype Bureau employee consumer cooperative printed under M, regarding waste Iron and direct Kashihara iron "DRI" (carbon concentration-from the example used in the DC-type electric guanidine furnace shown in Figure 24) Explanation. In this electric arc furnace * the melting chamber has a furnace diameter of 7.2 m and a height of 4 m * the preheating chamber has a width of 3 ««, a length of 5 m * K and a height of 7 m, and the capacity of the furnace is 180 tons. First, 30 tons The room temperature DRI and 50 tons of room temperature scrap iron are put into the melting room. Secondly, 70 tons of room temperature scrap iron are put into the preheating chamber *, and the upper electrode made of graphite with a diameter of 30 is used with a maximum power supply capacity of 750V and 130kA. Melting began. Then, with the production of molten steel, quicklime and fluorite were added to form a molten slag, and then the oxygen M from the oxygen torch was set to 4000 Ha3 / hour and the carbon from the carbon torch was set to 50. kg / min of coal coke is blown into the molten slag solution. As the oxygen and coal coke are blown into the molten slag solution *, the tip of the upper pole is submerged in the molten slag solution. The voltage at this time is set to 520 ~ 550V. After that, DRI was continuously charged into the melting chamber at 1.8 tons / minute to continue dissolution. Furthermore, when the scrap iron in the preheating chamber decreased with the melting, 'the scrap iron was loaded into the preheating chamber * by the hopper * To maintain the height of the scrap iron in the preheating room as a certain paper size Zhou National Standards (CNS) A4 size (210X297 mm) 5Ί Ministry of Economic Affairs Bureau of Standards employees consumer cooperatives printed 4 6299 0 A7 B7 V. invention; instructions (52) while the height of the melting continues. Then, when the amount of molten steel produced in the melting furnace reaches 180 tons, the charging of the melting chamber by DRI is stopped, and after DRI is completely melted, about 60 tons of molten steel is left in the melting chamber, which is equivalent to one heating time. 120 ton of molten steel is tapped from the tap hole in a pot-type ladle. When tapping steel * Use a heavy oil burner to heat the molten steel. The degree of C in molten steel at the time of copper production was 0.1 wtSi, and the melting lanthanum temperature was 1560C. After tapping, fill the tap hole with sand filling and then start the loading of D R I and the blowing of oxygen and coal char < repeatedly implement the operation of tapping 120 tons when the molten steel volume reaches 180 tons again. The molten steel after tapping is refined to a temperature of 1620¾ by a barrel refining furnace, and then made by a continuous sickle machine. The average unit electricity consumption of the ladle refining furnace is SOkWh / t °. As a result, the average time from tapping to tapping is 65 minutes under the condition that the DRI ratio is 70¾, and the oxygen blowing amount is 33Nra3 / t. Under the conditions of 25ks / t of coal coke blowing, it can be melted according to the unit electricity consumption of 535kWh / t. The total unit power consumption of the arc furnace and Shengjing refining furnace is 585 kWh / t. For comparison, the following operation method is also implemented (Comparative Example 1): In the electric arc furnace shown in Fig. 24, 30 tons of room temperature DRI is charged into the melting chamber, and in the electric arc furnace shown in Fig. 24 Put 30 tons of room temperature DRI into the melting chamber. Secondly, load 36 tons of room temperature scrap iron into the preheating chamber * M to start melting. When the molten copper is produced, the waste iron is not added, and 54 Tons of fibrils are directly transferred and loaded to obtain 120 tons of molten steel, and the molten steel is heated to 1600T * to be tapped. According to the comparison, the oxygen blowing amount and coal char blowing amount in Comparative Example 1 are the same as those in the above-mentioned Example 12. Furthermore, the electric power consumption of the ladle refining furnace is the operation of Example 12 and Comparative Example 1. The conditions and operation results are shown in Table 8. This paper size ^ uses the national standard of the week ((: >! 8 > eight 4 specifications (210/297 mm > 55 (please read the precautions on the back first and write this page)) Order. Line-46299 〇 V. Description of the invention (53) Α7 Β7 Lamb? T repair work and repair silver ---------------- Example 1 Comparative Example 1 The method of supplying waste iron to the preheating chamber is often filled with each heating Primary oxygen blowing amount (Nm3 / t) 33 33 Finished material blowing amount (Kg / 1) 25 25 tapping temperature (° C) 1560 1600 electricity consumption per unit (KWh / 1) electric arc furnace 535 595 ladle refining furnace 50 30 Total 585 625 (# 先 闻 读 NOTE # Item 4 ^ Write this page on the back)-Equipment · As shown in Table 8, in the case of Comparative Example 1, the unit electricity consumption of the electric arc furnace is 595kWh / t, and The combined electric power consumption of the electric arc hob and the ladle refining furnace is 625 kWh / t. In this way, compared with Comparative Example 1, 'Example 1 according to the present invention may reduce the electricity consumption per unit by the degree of ¥ h / t. (Exemplary aspect 13) Under K, in Example 2, the scrap iron and cold milling (carbon concentration 4.5wU) are used together in a DC electric arc furnace, and will be described. In this electric arc furnace, the 'melting chamber has Diameter 7.2ιο and higher 4b, the preheating chamber has a width of 3ra, a length of 5m, a K and a height of 7m, and the furnace capacity is 180 tons. First, 30 tons of room temperature cold milling and 50 tons of room temperature scrap iron are loaded into the melting room, and secondly, 70 tons Normal temperature scrap iron is loaded into the preheating chamber. The upper electrode made of graphite with a diameter of 30 hours starts to melt with a maximum of 750V and 130kA Ningyuan Rongzheng. Then, with the generation of molten steel, quick lime and fluorite are added to form molten slag. Liquid, followed by making the oxygen δ from the oxygen torch set to δ0000Nι® 3 / hour and the coal coke from the carbon torch to be set to 80ks / min. Paper standards apply to the China National Standard (CNS) A4 specification (210X297 mm) ^ g order _ Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economics 462990 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (54) into the molten slag. Due to the blowing of oxygen and coal coke Into the molten slag, so that the tip of the upper electrode is submerged in the molten slag. The voltage at this time is set to 550P. After that, when the waste iron in the preheating chamber drops with melting, the waste iron charging hopper will be used. Scrap iron loading The hot chamber keeps the scrap iron in the preheating chamber at a certain height while continuing to melt. Then * when the amount of molten steel generated in the melting furnace reaches 180 tons, about 60 tons of molten steel is dissolved. The steel remains in the melting chamber, And it is equivalent to 120 tons of molten steel which is heated at a time. It is discharged out of the steel outlet into the pan-type barrel. When the steel is tapped, the molten steel is heated by a heavy oil burner. The concentration of C in the molten steel at the time of tapping is O. .lvU, melting steel temperature is 1560¾. After tapping, fill the steel outlet with sand filling, and then directly load 30 tons of cold milling at room temperature directly into the melting chamber. At the same time, the blowing of oxygen and coal coke is started again. * K repeatedly implements its molten steel tap to reach 180 tons again. 120 tons of steel operation. After tapping, the molten steel is refined by a ladle refining furnace and heated up to 162〇υ * and then made by a continuous machine. The unit electricity consumption of ladle refining furnaces is on average 60kWh / t. Results * Under the condition that the cold heading ratio is 25¾, the time from tapping to tapping is 40 minutes on average, and under the conditions of 33Hb3 / t of oxygen blowing and 16kg / t of coal char blowing, Melting is achieved by the unit power consumption of 195kWh / t. The total unit power consumption of the electric arc furnace and the ladle refining furnace is 255k Wh / t. In addition, for comparison, the following operations are also implemented: 30 tons of room temperature cold milling and 20 tons of room temperature scrap iron are loaded into the melting room, followed by * 70 tons of room temperature waste iron are loaded into the preheating chamber and started Melting, without adding waste iron into the preheating chamber, to obtain 120 tons of molten steel, and heating this molten steel to 1590 ° C and then tapping (Comparative Example 2); Mixture * Among which the paper size for cold milling is in accordance with Chinese National Standard (CNS) Λ4 specification (210X297 mm) Packing--\ J, (. (Please read the note on the back of the item $ 1 1 ^ write this page) -Order- .411-line-4 6 2 9 9 0 a? B7 V. The description of the invention (55) is 25¾ (M is called π mixture A "), and it is put into the preheating chamber M to start melting *. When the mixture A in the heating chamber decreases with melting, the compound A is loaded into the preheating chamber to maintain the height of the mixture A in the preheating chamber at a fixed height while continuing to melt, and then repeatedly generated in the melting furnace. When the amount of molten steel reaches 180 tons, about 60 tons of molten steel is left in the melting chamber, and 120 tons of molten steel equivalent to one-time heating is discharged from the tap port to a pan-type drum. I · Operation (Comparative Example 3). Pressing again, in Comparative Examples 2 and 3, the oxygen blowing amount and coal coke blowing amount are the same as those in the above Example 2 * Furthermore * the contents of the barrel refining furnace The average unit electric child was 30 k Wh / t in Comparative Example 2 and 60 kWh / t in Comparative Example 3. The operating conditions and operating results of Example 2, fcb, Comparative Example 2, and Comparative Example 3 are shown in Table 9. Table 9 9 Operation calendar operation (please read the precautions on the back first and write this page).

-,1T 經濟部中央標準局員工消費合作社印製 實施例2 比較例2 比較例3 對預熱室之磨鐵供給方法 經常填充 每加熱一次 —填充 冷鐵源供給方法 直接供給於熔 解室 直接供給於熔 解室 g由預熱室供 氧氣吹入量(Nm3/t) 33 33 p" ··*-' 一 33 碳材吹入量(Kg/1) 16 16 --- 16 出鋼溫度(。〇 1560 1590 ~~1560 出“至出鋼之時間（分鐘） 40 45 43 單位用電量 電弧爐 195 310 180 盛桶精煉爐 60 30 60 (KWh/t) 合計 255 340 ----- 240 成分不合格之發生率(％) 0.8 0.8 — 3.1 〜----... 線. 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐} 4 經濟部中央標準局員Η消費合作杜印製 6299 0 a? .____B7__五、發明説明（56) 如表9所示，在比較例2之情況，電弧爐之單位用電量為 310kWh/t，而其電弧爐與盛桶精煉爐合計之單位用電量為 3 40 k Wh/t，其與依照本發明之實施例2相較，單位用電量 升高（惡化）85kWh/t。另在比較例3之情況，雖然因其冷銑 被預熱而顯示良好之單位用電量，比實施例2低15kWh/t， 1 但由鉍出鋼前之碳濃度之調整費時，致使出鋼'至出鋼之時 間延長3分鐘，並且出鋼後之熔鋼碳濃度上之成分不合格 之發生率達到3 . 1 %，即為實施例2之約4倍。如此，依照本 發明之實施例2可降低單位用電量之同時，很少發生熔鋼 碳濃度成分不合格之情事，有可能實規安定之操作。 其次*關於本發明之其他實施形態，在參照第26圖、第 27圖之下，加K說明。 (實施態樣14) Μ下說明第26圖、第27圖所示之直流電弧爐有關之實施 例。在該電弧爐中，熔解室具有爐徑7.2m及高度4ιπ’預熱 室具有寬度3m，長度5m，Μ及高度7m，而爐容量為U0噸 。首先，將70噸之常溫廢鐵裝入預熱室，其次，將40噸之 熔跣（碳濃度4.5wt%)及50噸之常溫賴鐵裝入熔解室*而使 用直徑30吋之石墨所製之上部電極Μ按最大750V* 130kA 之電源容量開始熔解。再者，在剛通電後*添加生石灰及 螢石之同時，使來自氧氣吹管之被設定6000Νιπ3 /小時之 氧氣K及來自碳材吹管之被設定36kg /分鐘之煤焦吹入熔 解室。生石灰及螢石被加熱而成為熔融漳液，然後由於氧 (請先閱讀背面之注意事項t寫本頁) 本紙張尺度適用中阖國家標準（CNS ) A4規格（210X297公釐） 59 462990 五、發明説明（57) 氣及煤焦之吹入*熔融渣液發生造澄作用1而使上部電極 之先端淹沒於熔融渣液内。將此時之電歷設為55()Ve其後 ，在預熱室内之廢鐵隨著熔解下降時’藉進料斗將廢鐵裝 入預熱室，μ保持預熱室内之廢鐵高度為一定之高度之同 膊繼續熔解’然後*在溶解爐内產生之溶鋼量達到18〇峨 時，使約60噸之熔鋼留存於熔解室内’而使相當於一次加 « * 熱分之熔鋼120噸從出鋼口出鋼於鍋式盛桶肉。出鋼時’ 藉重浊燃燒器加熱熔綱。出鋼時之溶鋼中之c濃度為0*lwt 3；，熔鋼溫度為1560 Ό。出銅後’再次將40囉之溶魏裝入 塔解室，繼之再次開始氣氣及煤焦之吹入，以反覆·實施其 熔鋼量再次達到180噸時出鋼120噸之操作°出銅後之溶鋼 藉一盛桶精煉爐精煉而升溫至162〇υ ’然後經過連續鐮造 機鋳造。盛桶精煉爐之單位用電量平均為60ktfh/t° 經濟部中央標準局員工消費合作社印製 其結果，在熔銑之配比為33¾，氧氣吹人董為33Nm3 /t ，K及煤焦吹入暈為〗21*^/1:之條件下’得到出鋼至出鋼之 平均時間為40分鐘，而得以按單位搿锺量8〇k Wh/t簧現溶 解。電弧爐與盛桶精煉爐之合計簞位用電量為140kyh/t° 再者，為了做比較*亦實行下述操作法（比較例）··將7〇 哺之常溫廢鐵裝入預熱室’其次將40噸之熔銑（碳濃度 4.5v/t%)及1〇噸之常溫廢鐵裝入熔解室以開始熔解’然後 一直未追加顒鐵之裝入’即使在搭鋼產生時亦然*如此繼 續熔解而得到120噸熔鋼，而使此熔鋼升溫至1600*C後’ 予ii(出鋼。又按*比較例中之氣氣吹入量及煤焦吹人量均 與上逑實施例相同’再者’其盛桶精煉破之單位用電量為 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐) 46299 0 B； 五、發明説明（58) 3 0 k W h / t。實施例及比較例之操作條件及操作结果均示於 表10中。 恙1 0操作條伴及操作結_.._果 實施例 比較例 對預熱室之廢鐵供給方法 經常塡充 每加熱一次 氧氣吹入量(Nm3/t) 33 33 煤焦吹入量(Kg/t) 12 12 出鋼溫度(°C) 1560 1600 出鋼至出鋼之時間（分鐘） 40 60 單位用電量(KWh/t) 電旅爐 80 240 盛桶精煉爐 60 30 合計 140 270 (#先閱讀背面之注意事項寫本頁) •棄·-, 1T Printed by the Consumer Standards Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs Example 2 Comparative Example 2 Comparative Example 3 The method of supplying iron to the preheating chamber is often filled once for heating—the method of supplying cold iron sources is directly supplied to the melting chamber and directly supplied In the melting room g, the oxygen blowing amount (Nm3 / t) is supplied from the preheating chamber 33 33 p " ·· *-'-33 Carbon blowing amount (Kg / 1) 16 16 --- 16 tapping temperature (. 〇1560 1590 ~~ 1560 Time from tapping to tapping (minutes) 40 45 43 Unit consumption electric arc furnace 195 310 180 Barrel refining furnace 60 30 60 (KWh / t) Total 255 340 ----- 240 Ingredients Incidence rate of failure (%) 0.8 0.8 — 3.1 ~ ----... Line. This paper size applies to China National Standard (CNS) A4 (210X297 mm) 4 Member of the Central Standards Bureau of the Ministry of Economic Affairs Η Consumption Cooperation System 6299 0 a? .____ B7__ V. Description of the invention (56) As shown in Table 9, in the case of Comparative Example 2, the unit electricity consumption of the electric arc furnace is 310kWh / t, and the electric arc furnace and the barrel refining furnace total The unit power consumption is 3 40 k Wh / t, which is higher (deterioration) than the second embodiment according to the present invention. 85kWh / t. In the case of Comparative Example 3, although the unit power consumption is good because it is preheated by cold milling, which is 15kWh / t lower than Example 2, 1 but the carbon concentration adjustment before tapping from bismuth It took time, which caused the time from tapping to tapping to be extended by 3 minutes, and the incidence of unqualified components in the molten steel carbon concentration after tapping reached 3.1%, which is about 4 times that of Example 2. Thus, According to the second embodiment of the present invention, the unit power consumption can be reduced, and the occurrence of unqualified carbon concentration components in molten steel rarely occurs. It is possible to perform stable operations. Secondly, regarding other embodiments of the present invention, refer to Below Fig. 26 and Fig. 27, add K. (Embodiment Aspect 14) Let me explain the embodiment related to the DC electric arc furnace shown in Fig. 26 and Fig. 27. In this electric arc furnace, the melting chamber has a furnace. The preheating chamber with a diameter of 7.2m and a height of 4m 'has a width of 3m, a length of 5m, a height of 7M, and a height of 7m, and the furnace capacity is U0 tons. First, 70 tons of room temperature scrap iron is charged into the preheating chamber, and secondly, 40 tons of Molten tin (carbon concentration 4.5wt%) and 50 tons of normal temperature Lai iron are loaded into the melting chamber * and a 30-inch diameter stone is used The produced upper electrode M starts to melt according to the maximum power supply capacity of 750V * 130kA. In addition, immediately after the power is added *, quick lime and fluorite are added, and the oxygen K from the oxygen blowing pipe is set to 6000N3 / hour and the carbon material The blow pipe was set to 36 kg / min of coal char and blown into the melting chamber. Quick lime and fluorite are heated to become molten liquid, and then due to oxygen (please read the precautions on the back to write this page) This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) 59 462990 5. Description of the invention (57) Blowing of gas and coal coke * The molten slag liquid makes a clearing action1, so that the tip of the upper electrode is submerged in the molten slag liquid. Set the electrical calendar at this time to 55 () Ve. Then, when the scrap iron in the preheating chamber decreases with melting, 'use the hopper to load the scrap iron into the preheating chamber, and keep the height of the scrap iron in the preheating chamber to A certain height will continue to melt 'then * when the amount of molten steel generated in the melting furnace reaches 180 Å, about 60 tons of molten steel will be left in the melting chamber', which is equivalent to adding «* hot-melt molten steel 120 tons of steel are tapped from the tap hole in a pot-type ladle. When tapping, ‘the heavy turbidity burner is used to heat the molten steel. The c concentration in the molten steel at the time of tapping is 0 * lwt 3; and the melting temperature is 1560 Ό. After the copper was produced, 40% of the dissolved Wei was loaded into the tower decomposition chamber again, and then the gas and coal coke were blown in again to implement the operation of 120 tons of steel when the amount of molten steel reached 180 tons again. After the copper is removed, the molten steel is refined by a ladle refining furnace and heated to 162〇υ 'and then made by a continuous sickle machine. The average unit power consumption of the ladle refining furnace is 60ktfh / t °. The results are printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs. The blending and milling ratio is 33¾, and the oxygen blowing rate is 33Nm3 / t. K and coal coke The blow-in halo is 〖21 * ^ / 1: 'The average time from tapping to tapping is 40 minutes, and the spring can be dissolved in a unit volume of 80k Wh / t. The total electric power consumption of the electric arc furnace and the ladle refining furnace is 140kyh / t °. For comparison, the following operation method (comparative example) is also used. Chamber 'followed by 40 tons of melting and milling (carbon concentration of 4.5v / t%) and 10 tons of room temperature scrap iron into the melting chamber to start melting', and then no additional iron loading was added 'even when the steel was produced It is also the case that * continued to melt to obtain 120 tons of molten steel, and after this molten steel was heated up to 1600 * C, 'Iii (out of steel. Again, according to the comparison example, the gas blowing amount and coal coke blowing amount were averaged. Same as the above example, “Moreover,” the unit power consumption of its barrel refining and breaking is based on Chinese paper standard (CNS) A4 specification (210X297 mm) 46299 0 B; 5. Description of invention (58) 3 0 k W h / t. The operating conditions and operating results of the examples and comparative examples are shown in Table 10. 恙 1 0 operating strips and operating results _.._ Fruit Example Comparative Example of preheating room waste iron The supply method is often filled with oxygen blow-in amount (Nm3 / t) for each heating 33 33 coal coke blow-in amount (Kg / t) 12 12 tapping temperature (° C) 1560 1600 tapping Time for steel (minutes) 40 60 units of electricity (KWh / t) electric oven 80240 trip ladle refining furnace 60 30 Total 140 270 (# to read the notes written on the back of this page) • abandoned ·

tL Γ 經濟部中央標準局員工消費合作社印製 如表10所示，在比較例之情況，電弧爐之單位用電量為 2 40 k Wh/t，而其電弧爐與盛桶精煉爐合計之單位用電量為 270kWh/t，再者，其出鋼至出鋼之時間平均為60分鐘°如 此，與比較例相較，依照本發明之實施例有可能減少1 3 0 kWh/t之單位用電量之同時，得K將出鋼至出鋼之時間縮 短20分鐘。 第29圖展示，實施例中在設定氧氣吹人量為33Nibs /t之 一定條件之下，在20〜45¾範圍肉改變熔銑配比時之電弧 爐之單位用電量。如第29圖所示，隨著熔銑配比之增加’ 單位用電量減少，而由此得知，將熔銑配比設定為約50!ϊ Μ上時，有可能在未用電力之下僅靠熔銑中之碳之燃燒熱 本紙張尺度適用中周國家標準（CNS ) A4規格（210X 297公釐） 462990 五、發明説明（59 ) 來施行電弧爐之操作。 請 先 閲 讀 背 面 之 注 意 事 項 再 r 本 π 其次，關於本發明之其他寅施彤態，在參照第30圖、第 31圖之下*加K說明。 Μ下，根據該等圖說明本發明。第30圖為展示本發明之 實_態樣一例之電弧熔解設備之縱斷面概略圖。. 訂 在第30圖中，熔解室702之內部為由耐火物所築造，該 室702在底部具有爐底電極706，而在上部被配置有豎直型 之預熱室703及水冷構造之爐壁704，而在爐壁704之上部 開口部，為該預熱室703所未覆蓋者，覆蓋有可自由開閉 之水冷構造之爐蓋705。在穿通此爐蓋705之下》設有可對 熔解室702内注上下移動之石墨製之上部電極707’而構成 電弧熔解設備701之基部。爐底電極706及上部電極707各 自連接於直流電源（未_示），藉Κ在爐底電極706與上部 電極707之間產生電弧719。 、線 經濟部中央標準局貝工消費合作社印製 在預熱室703之上方設有懸掛於移動架車724之開底式進 科斗715，自此進料斗715藉由設在預熱室703上部之可自 由開閉之供給口 720將廢鐵、直接癦原鐵等之冷鐵源716裝 入預熱室703內。其次，設於預熱室703上端之導管721乃 被連接於未圖示之集麇機，藉此使熔解室702所產生之高 溫廢氣被吸引以依次通過預熱室703及導管721，致使預熱 室70 3内之冷鐵源716被預熱。被預熱之冷鐵源71 6Μ與熔 解室702内之冷鐵源71S熔解量相稱之方式注熔解室702內 自由落下，而被裝入熔解室702内。 預熱室703之側壁具有往下方擴開之斜度。由於設有斜 本紙張尺度適用中國國家標準（CNS > Α4規格（210X297公釐） A7 B7 462990 五、發明説明（GO) 度，可將所預熱之冷鐵源716安定供給於熔解室702。在未 形成有斜度之場合，冷鐵源716則難於自然落下，而成為 發生吊架現象之原因。此項斜度最好能設在2.5〜7度之範 圍內。其若小於2.5度，則無法有效防止預熱室3内之吊架 現象之發生。另若大於7度，預熱室703内之泠鐵源716之 裝料量則減少，無法充分延畏泠鐵源716在預熱室703内之 滞留時間*因此無法得到充分之預'熱效果。 在穿通此爐蓋705之下，設有可對熔解室702内往上下移 動之氧氣吹管708及碳材吹管709’從氧氣吹管708將氧氣 吹人熔解室702内’而從碳材吹管709將碳材（如煤焦、低 揮焦煤、煤、木炭.、石墨）在空氣或氮氣等為輸送用之氣 體之下予K吹入熔解室702内。 再者，在熔解室702中，與設有預熱室703之部位相對地 ，在爐底設有一在出口惻被卩5 722壓住而在内部填充有填 砂或泥槳材之出鋼口 713，而在該爐底之側壁設有一在出 口側被門723媵住而在内部填充有填砂或泥獎材之出渣口 714。在爐蓋705之與該出鋼口 713之垂直上方相對應之部 位設有燃燒器1〇。燃燒器利用空氣或氧氣或富氧化空氣 使重油、燈油、微粉煤、丙烷氧體、天然氣等之化石燃料 在熔解室702内燃燒° 在熔解室702之爐底*位於從預熱室3供給之冷鐵源 716與產生於熘解室7〇2內之熔鋼717之境界附近者’設有 風口 712。在設計氧氣吹入之場合，使風口 712形成雙重管 構造且構成一種在外管使丙烷等之冷卻氣體流動之雙重管 私紙張尺度適用中國國家標準（CNS)A4规格（210X297公酱丁 請 閲 面 之 注 Ϊ 經濟部中央標準局員工消費合作社印裝 U3 經濟部中央標準局員工消費合作社印製 4629^0 _%__ 五、發明説明（Gi) 構造’而在設計Ar等之惰性氣體吹入之場合，使風口 712 形成簞管構造亦可，或使風口 712形成由直徑程度之细 管多數集合而成之構造亦可，或將風口 712代替K多孔質 素燒聘亦哥。 在如此構成之電弧熔解設備中使冷鐵源71 6熔解之方 法係如下述施行者。首先將冷鐵源716從進料斗715裝入預 熱室？〇3。裝人預熱室703内之冷鐵源716亦被裝人熔解室 702內，不久將預熱室·？ 03内填充完舉。又按’為了將冷鐵 源716均匀装人溶解室702内，亦可Μ打開爐蓋7〇5而將冷 鐵源716裝人與預熱室7 03相反位置之熔解室702部内。 其次，一邊使氧氣或惰性氣體從風口 71 2吹入’ 一邊將 直流電流供給於爐底電極706與上部電極707之間之同時， 使上部電極707并降，以使電弧719產生於上部電極與爐底 電極706Μ及所裝人之冷鐵源716之間。然後’藉所產生之 電弧熱使冷鐵源716熔解，而產生熔鋼717。随著熔鋼717 之產生，將生石灰、螢石等之助熔劑裝入溶解室7〇2内* 使熔融渣液718彤成於熔鋼717上，Μ防熔鋼717之氧化之 同時企求熔鋦717之保溫。在熔融渣液718蠆太多之場合， 即使在運轉中亦可Μ從出渣口 7 1 4排渣。 •再者，即使隨著熔解之進展而在堆積於預熱室7〇3下方 位置之冷鐵源716與熔鋦717之境界附近積載有冷鐵源716 ，亦由於從風口 71 2吹入之氧氣或惰性氣體攪拌溶鋼717而 被攪拌之熔鋼717使所積載之冷^源716瑢解，可預先防止 冷鐵源716之吊架現象。 本紙張尺度適用中國國家標準（CNS ) Α4规格（2丨0X297公釐） 04 ----ΓΤ---- ί (請先閱讀背面之注意事項再^寒本頁) 訂 線 經濟部中央標準局員工消費合作杜印製 本紙張尺度適用中國國家標準（CNS ) A4規格（210X2.97公釐） 4 6299 0 A7 ______ B7___ 五、發明説明（f;2) 較佳的是，大約從熔鋼717之產生時期起將氧氣及碳材 從氧氣吹管708及碳材吹管709吹人熔鋼717或熔融渣液718 中。培於熔鋼717中之碳材或懋浮於熔融渣液718中之碳材 均會與氧氣發生反應而產生燃燒熱，即以輔助熱源起作用 而節約用電童。並且由於反應生成物之C0氣體使熔融渣液 718發生造渣作用而使電弧？19被包圍於熔融渣渡718，即 造成所謂之造渣操作，提高電弧71 _9之移熱效率。再者， 大量產生之高溫C0氣體及由此C0氣體之燃燒所產生之C0Z 氣體均Μ良好之效率預熱該預熱室703内之冷鐵源716。上 述碳材之吹入量Μ可與氧氣吹人量栢對應之方式決定之。 即在化學當量上，設定吹入之碳材量為相當於氧氣吹入量 。若吹入之碳材量少於氧氣吹入量，熔鋼711則會過剰氧 化*因此不合適。再者，從風口 712吹人之氧氣乃與熔鋼 717發生反應而使之成為i?e〇，此pe〇被所吹人之碳材遷原 。在此場合，從氧氣吹管708及風口 712吹入之氯氣合計量 从被熔解之熔鋼717每噸計為25{}1113以上，如、40111113以上 較佳。藉此*可在更高效率下使冷鐵源熔解。 隨著熔鋼717之產生，預熱室703内之冷鐵源716會與熔 解室702内之熔解量相稱地往熔解室7 02内自由落下而減少 *因此為了補充此項所減少之量，將冷鐵源716從進料斗 715裝入預熱室703。此項冷鐵源716對預熱室703内之装入 係Μ可保持冷鐵源716連縯存在於預熱室703内及熔解室 702内之狀態之方式，連纈或斷纊施行者。此障，為了提 高預熱效率*最好能將連續存在於預熱室7 03内及熔解室tL Γ Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs as shown in Table 10. In the case of the comparative example, the unit electricity consumption of the electric arc furnace is 2 40 k Wh / t, and its electric arc furnace and ladle refining furnace total The unit electricity consumption is 270kWh / t, and the average time from tapping to tapping is 60 minutes. In this way, compared with the comparative example, the embodiment according to the present invention may reduce the unit by 130 kWh / t At the same time of using electricity, K will shorten the time from tapping to tapping by 20 minutes. Fig. 29 shows that in the embodiment, under a certain condition of setting the oxygen blowing amount to 33Nibs / t, the unit electric power consumption of the electric arc furnace when the melting and milling ratio is changed in the range of 20 to 45¾. As shown in Figure 29, with the increase of the melting and milling ratio, the unit electricity consumption decreases, and it is learned that when the melting and milling ratio is set to about 50! Ϊ Μ, it may be The paper only uses the combustion heat of carbon in melting and milling. The paper size is applicable to the national standard (CNS) A4 (210X 297 mm) 462990. 5. Description of the invention (59) to perform the operation of the electric arc furnace. Please read the notes on the back first, then r this π. Next, about other states of the invention, please refer to Figures 30 and 31 * with K. Below, the present invention will be described based on the drawings. Fig. 30 is a schematic longitudinal sectional view of an arc melting device showing an example of the actual state of the present invention. As shown in Figure 30, the inside of the melting chamber 702 is made of refractory. The chamber 702 has a bottom electrode 706 at the bottom and a vertical preheating chamber 703 and a water-cooled furnace in the upper portion. The wall 704, and the opening above the furnace wall 704, is not covered by the preheating chamber 703, and is covered with a furnace lid 705 of a water-cooled structure that can be opened and closed freely. Below the furnace cover 705 is provided a graphite upper electrode 707 'which can move the melting chamber 702 up and down to form the base of the arc melting equipment 701. The furnace bottom electrode 706 and the upper electrode 707 are each connected to a DC power source (not shown), and an electric arc 719 is generated between the furnace bottom electrode 706 and the upper electrode 707. Printed by the Central Standards Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperative, there is an open-bottom hopper 715 suspended from the mobile rack 724 above the pre-heating room 703. A freely openable and closable supply port 720 in the upper part fills a preheating chamber 703 with a cold iron source 716 such as scrap iron or direct yakihara iron. Secondly, the duct 721 provided at the upper end of the preheating chamber 703 is connected to a collector (not shown), so that the high-temperature exhaust gas generated by the melting chamber 702 is attracted to pass through the preheating chamber 703 and the duct 721 in order, so that the preheating chamber The cold iron source 716 in the hot chamber 70 3 is preheated. The preheated cold iron source 71 6M and the amount of melting of the cold iron source 71S in the melting chamber 702 are proportionally injected into the melting chamber 702, and are charged into the melting chamber 702. The side wall of the preheating chamber 703 has a slope extending downward. Due to the slanted paper size, the Chinese national standard (CNS > A4 size (210X297 mm)) is available. A7 B7 462990 5. Description of the invention (GO), the preheated cold iron source 716 can be stably supplied to the melting chamber 702. When the slope is not formed, it is difficult for the cold iron source 716 to fall naturally and become the cause of the hanger phenomenon. This slope can be set within the range of 2.5 to 7 degrees. If it is less than 2.5 degrees , It is impossible to effectively prevent the occurrence of the hanger in the preheating chamber 3. If it is more than 7 degrees, the loading amount of the Ling Tieyuan 716 in the preheating chamber 703 is reduced, and it is not possible to fully delay the Ling Tieyuan 716 in the preheating chamber. The residence time in the hot chamber 703 * can not obtain a sufficient pre-heating effect. Under this furnace cover 705, an oxygen blowing pipe 708 and a carbon material blowing pipe 709 'which can move up and down the melting chamber 702 are provided from the oxygen The blow pipe 708 blows oxygen into the melting chamber 702 ', and the carbon material (such as coal coke, low coke coal, coal, charcoal, graphite) is conveyed to the K from the carbon material blow pipe 709 under a gas such as air or nitrogen. It is blown into the melting chamber 702. Furthermore, the melting chamber 702 is provided with Relatively, the chamber 703 is provided with a steel outlet 713 at the bottom of the furnace, which is pressed at the outlet 卩 5 722 and filled with sand-filled or mud paddle materials, and a side of the furnace bottom is provided at the outlet side. It is held by a door 723 and filled with a slag outlet 714 filled with sand or mud prizes. A burner 10 is provided at a portion of the furnace cover 705 corresponding to the vertical outlet of the steel outlet 713. Use of the burner Air or oxygen or oxygen-enriched air burns fossil fuels such as heavy oil, kerosene, finely pulverized coal, propane oxygen, natural gas, etc. in the melting chamber 702 ° The bottom of the melting chamber 702 is located at the cold iron source supplied from the preheating chamber 3 716 and those near the realm of molten steel 717 generated in the decomposition chamber 702 are provided with a tuyere 712. In the case of designing oxygen blowing, the tuyere 712 has a double pipe structure and forms a kind of cooling of propane in the outer pipe The size of the paper for dual-private management of gas flow is applicable to China National Standard (CNS) A4 specifications (210X297). Please read the note above. 装 Printed by the Consumer Cooperative of the Central Standard Bureau of the Ministry of Economic Affairs. Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. 4629 ^ 0 _% __ 2. Description of the invention (Gi) Structure 'In the case where inert gas such as Ar is designed to be blown in, the tuyere 712 may be formed into a stern tube structure, or the tuyere 712 may be formed into a structure in which a large number of thin tubes having a diameter are assembled. Or, the tuyere 712 is used instead of the K porous element. The method for melting the cold iron source 71 6 in the arc melting device thus constructed is as follows. First, the cold iron source 716 is loaded from the feed hopper 715 into the preheater. Hot room? 03. The cold iron source 716 installed in the preheating room 703 is also installed in the melting room 702. The room will be preheated soon? Filled up in 03. To press the cold iron source 716 uniformly into the dissolution chamber 702, you can also open the furnace cover 705 and place the cold iron source 716 into the melting chamber 702 opposite to the preheating chamber 703. Next, while blowing oxygen or inert gas through the tuyere 71 2, while supplying a direct current between the furnace bottom electrode 706 and the upper electrode 707, the upper electrode 707 is lowered in parallel so that an arc 719 is generated between the upper electrode and the upper electrode. Between the furnace bottom electrode 706M and the installed cold iron source 716. Then the cold iron source 716 is melted by the generated arc heat to produce molten steel 717. Along with the production of molten steel 717, fluxes such as quicklime and fluorite are charged into the dissolution chamber 702. * The molten slag solution 718 is formed on the molten steel 717, and the anti-melting steel 717 is oxidized while seeking melting.鋦 717 insulation. When the molten slag 718 is too much, the slag can be discharged from the slag outlet 7 1 4 even during operation. • Furthermore, even if the cold iron source 716 is accumulated near the boundary between the cold iron source 716 and the melting furnace 717 as the melting progresses, the cold iron source 716 is also blown in from the tuyere 71 2 Oxygen or inert gas stirs the molten steel 717 and the stirred molten steel 717 dissolves the stored cold source 716, which can prevent the hanging phenomenon of the cold iron source 716 in advance. This paper size applies Chinese National Standard (CNS) A4 specification (2 丨 0X297 mm) 04 ---- ΓΤ ---- ί (Please read the precautions on the back before ^ this page) Central Standard of the Ministry of Economics Bureau ’s consumer cooperation Du printed paper size applicable to Chinese National Standard (CNS) A4 specifications (210X2.97 mm) 4 6299 0 A7 ______ B7___ V. Description of the invention (f; 2) Preferably, approximately from molten steel From the generation period of 717, oxygen and carbon materials are blown into the molten steel 717 or the molten slag liquid 718 from the oxygen blowing pipe 708 and the carbon material blowing pipe 709. The carbon material cultivated in the molten steel 717 or the carbon material floating in the molten slag liquid 718 will react with oxygen to generate combustion heat, that is, to assist the heat source to save electricity. And because the CO gas of the reaction product causes the molten slag liquid 718 to generate a slagging effect and cause an arc? 19 is surrounded by molten slag crossing 718, which results in the so-called slagging operation and improves the heat transfer efficiency of arc 71_9. Furthermore, the high-temperature CO gas generated in large quantities and the CO gas generated by the combustion of the CO gas both have a good efficiency to preheat the cold iron source 716 in the preheating chamber 703. The blowing amount M of the carbon material can be determined in a manner corresponding to the amount of oxygen blowing into the cypress. That is, in terms of chemical equivalent, the amount of carbon material to be injected is set to be equivalent to the amount of oxygen to be injected. If the amount of carbon material blown in is less than the amount of oxygen blown in, the molten steel 711 will be over-oxidized * and therefore not suitable. In addition, the oxygen blown from the tuyere 712 reacts with the molten steel 717 to make it i? E0, and this pe〇 is moved to the original carbon material. In this case, the total amount of chlorine gas blown in from the oxygen torch 708 and the tuyere 712 is 25 {} 1113 or more per ton from the molten steel 717 being melted, such as 40111113 or more is preferred. This * allows the cold iron source to be melted at a higher efficiency. With the generation of molten steel 717, the cold iron source 716 in the preheating chamber 703 will fall freely into the melting chamber 702 in proportion to the amount of melting in the melting chamber 702 and will decrease *. Therefore, in order to supplement this reduced amount, The cold iron source 716 is loaded into the preheating chamber 703 from the hopper 715. The loading of the cold iron source 716 into the preheating chamber 703 is to maintain the state of the cold iron source 716 in the preheating chamber 703 and the melting chamber 702 in a continuous manner, even if the cold iron source 716 is used. In order to improve the preheating efficiency, it is better to continuously exist in the preheating chamber 703 and the melting chamber.

bD (請先聞讀背面之注意事項再染象本頁) 订 46299 Ο Α7 Β7_ 五、發明説明（C3) 702肉之冷鐵源716量設定為一定加熱分之4(UK上。 如此使冷鐵源716熔解，而在熔解室702內之烙鋼717積 聚"I達到至少一次加熱分時，在繼缡保持冷鐵源7 1 6連續 存在於熔解室702內及預熱室703内之狀態之下，使熔解室 702傾動，Μ將一次加熱分之熔鋼717從出鋼口 713出鋼於 鍋形盛桶等之熔鋼保持容器（未圖示）。在出鋼之際，亦可 Μ用燃燒器7 1 0來加熱熔鋼7 1 7，Κ ·防止由熔鋼'溫度降低所 引起之出鋼口 713之閉塞等之故障。 其次在出鋼後，必要時藉盛桶精煉爐等之類使熔鋼717 升溫而予Μ精煉，然後經過連鑛鑄造機等之類鑄造，在出 鋼（熔鋼717之出爐）後，施行排渣（熔融渣液718之出爐）， 然後使熔解室702恢復水平狀態，而將填砂或泥漿材填充 於出鋼口 713内及出渣口 714内*繼之，再次通電Μ繼續熔 解。下次加熱由於可用已被預熱之冷鐵源716來開始熔解 ，可提高熔解效率。又按，亦可以在出鋼時使數噸〜數十 噸之熔鋼留存於熔解室內，藉以再次開始下一次加熱處理 之熔解操作。如此可促進初期之瑢解，而進一步提高熔解 效果。 由於如此施行泠鐵源716之加熱·熔解*有可能預先防 止熔解室702内之預熱室703下方位置上之泠鐵源716之吊 架琨象，而有可能Μ高效率施行安定之熔解。其結果，可 達成生產性之提高及單位用電量之降低。 (實施態樣15) Μ下說明如第30_所示之電弧熔解設備有關之實施例。 本紙張尺度適用中囷國家標準（CNS ) Α4規格（210X297公釐） (請先閲讀背面之注意事項ί寫本頁) 裝· 訂 '線- 經濟部中央標準局員工消費合作社印裝 462990 A7 B7 五、發明説明（f;4) 又按，本實胞例為將氧氣從設在熔解室爐底之二個風口吹 入之同時進行熔解之例子。在該電强熔解設備中，熔解室 具有爐徑7.2m及高度4πι，預熱室具有寬度3ia，長度5ίπ* Μ 及高度7ιη，而爐容量為180噸。 首先，將150噸之常溫廢鐵裝入預熱室，其次，使用直 徑30吋之石墨所製之上部電極Κ最大750V，130kA之電源 容量開始熔解。.在剛通霄遙，添加生石灰及腎石之同時， 將氧氣按4000tim3 /小時從氧氣吹管吹入熔解室。當熔解 室之熔鋼量積多時，將煤焦按80ks/分鐘從碳衬吹管吹入 熔渣中，Μ道入造渣操作，而使上部電極之先端淹沒於所 形成之熔融渣液内。將此時之電壓設定為550V。其後*在 預熱室内之廢鏺隨著熔解下降時，藉進料4將廢鐵裝入預 熱室，Μ保持預熱室內之廢鐵高度為一定之高度之同時繼 續熔解。 在此期間，將氧氣從雙重管風口按每假風口 40 Nn 3 /小 時，即風口合計80Νιπ3 /小時之速率吹入，Μ防冷鐵源之 吊架現象*而繼績經常穗定發生之冷鐵源倒入熔網中之狀 態。此外，將丙烷氣體從雙重管之外管吹入* Κ冷卻風口。 然後，在熔解室内及預熱室内連練存在有廢鐵之狀態下 進行熔解，而在熔解室内產生之熔鋼量達到180噸時*使 約60噸之熔鋼留存於熔解室内，而使相當於一次加熱分之 熔鋼120噸出鋼於鍋形盛桶内。出鋼時，藉重油燃燒器加 熱熔鋼。出鋼時之熔鋼中之C濃度為O.lwt%，熔鋼溫度為 15501。出鋼後，再次通電之同時再次開始氧氣及煤焦之 本紙浪尺度適用中阖國家標準（CNS ) A4規格（210X297公釐） ----Γ---:11^1裝！ (請先鬩讀背面之注意事項每填寫本頁) -訂. 經濟部中央擦準局員工消費合作社印製 4 6299 0 a? __B7_ 五、發明説明（C5) 吹人，以反覆質施其熔鋼量再次達到ΙδΟ噸時出鋼120噸之 操作。 其結果，在氧氣吹管及底吹用之風口之合計氧氣吹入量 為33HfB3 /t，Μ及煤焦吹人量為26kg/t之條件下，得到岀 鋼至出鋼之平均時間為40分鐘，而得K按單位用電量17〇 kWh/t貿現熔解。 在未使氧氣従風口吹入i場合，.駿鐵則.會積層於熔鋼與 泠鐵源之境界附近之殘餘未熔部上，而儘管廢鐵之前面有 空間》廢鐵卻不降落於熔解室内，長時間繼續吊架狀態’ 而Μ加熱6次中之1次之程度發生熔解停滯之現象，但依照 本發明將氧氣吹入時未曾發生過上述熔解停滯之情事D 關於氧氣從爐底吹人之場合及未吹入之場合調査出鋼― 出鋼時間與其頻度之關係之結果得知*與實施例1 一樣* 在氧氣未吹入之場合，廢鐵對熔銅中之供給速度降低而造 成出鋼至出鋼之時間被延長》然而在使氧氣吹入之場合’ 得K約略4 0分鐘實現出鋼，而未曾發生過熔解時間被延長 之情事ΰ 經濟部中夬標準局員工消費合作社印製 (請先閱讀背面之注意事項f4寫本頁) [產業上之可利用性] 如以上所說明*依照本發明，使用一種電弧溶解設備， 具有熔解室及直接連接於該熔解室上部之預熱塔者，以使 廢鐵等之鐵源熔解，因此不需要特設Μ鐵源之輸送供給於 熔解室為目的之裝置。又由於Μ可保持鐵源在熔解室內及 預熱塔内連續存在之狀態之方式將鐵源供給於預熱塔之同 時藉電弧使熔解室内之鐵源熔解而在熔解室内及預熱塔内 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ 297公釐） .ti 6ί 46299 0 a? B7 經濟部中央標準局員工消費合作社印製bD (please read the precautions on the back before dyeing this page) Order 46299 〇 Α7 Β7_ V. Description of the Invention (C3) The amount of cold iron source 716 of 702 meat is set to 4 / UK (on the UK. This makes the cold The iron source 716 melts, and when the iron 717 builds up in the melting chamber 702 reaches at least one heating point, the cold iron source 7 1 6 is continuously present in the melting chamber 702 and the preheating chamber 703. In the state, the melting chamber 702 is tilted, and the molten steel 717, which has been heated once, is tapped from the tap hole 713 to a molten steel holding container (not shown) such as a pot-shaped ladle. At the time of tapping, also The burner 7 10 can be used to heat the molten steel 7 1 7, K · To prevent the failure of the steel outlet 713 from being blocked due to the temperature drop of the molten steel. Secondly, after the steel is tapped, it can be refined by using a bucket if necessary. The molten steel 717 is heated by a furnace or the like to be refined by M, and then cast through a continuous ore casting machine or the like. After tapping (the tapping of the molten steel 717), the slag is discharged (the tapping of the molten slag liquid 718), and then The melting chamber 702 is restored to a horizontal state, and the sand-filling or mud-filling material is filled in the steel outlet 713 and the slag outlet 714 * followed by Power on again to continue melting. Because the preheated cold iron source 716 can be used for melting in the next heating, the melting efficiency can be improved. Press again, and it is also possible to leave several tons to dozens of tons of molten steel at the time of tapping. In the melting chamber, the melting operation for the next heat treatment is started again. This can promote the initial dissolution and further improve the melting effect. Because the heating and melting of Ling Tieyuan 716 is thus performed, it is possible to prevent the preheating in the melting chamber 702 in advance. It is possible to perform stable melting with a high efficiency of the hanging image of the hanging iron source 716 at the position below the hot chamber 703. As a result, productivity can be improved and unit power consumption can be reduced. (Implementation aspect 15 ) The following describes the relevant examples of arc melting equipment as shown in 30_. This paper size applies the China National Standard (CNS) A4 specification (210X297 mm) (please read the precautions on the back first to write this page) Packing and ordering line-printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 462990 A7 B7 V. Description of the invention (f; 4) Again, this example of the cell is blowing oxygen from two air vents located at the bottom of the melting chamber furnace. Into An example of simultaneous melting. In this electric melting equipment, the melting chamber has a furnace diameter of 7.2m and a height of 4πm, the preheating chamber has a width of 3ia, a length of 5 ί * Μ and a height of 7m, and the furnace capacity is 180 tons. First, Put 150 tons of room temperature scrap iron into the preheating chamber, and then use the upper electrode K made of graphite with a diameter of 30 inches. The maximum power capacity is 750V and the power capacity of 130kA begins to melt. At the same time, oxygen is blown into the melting chamber from the oxygen blowing pipe at 4000tim3 / hour. When the molten steel volume in the melting chamber is large, coal coke is blown into the slag from the carbon-lined blowing pipe at 80ks / minute, and the slag enters the slagging operation. , So that the tip of the upper electrode is submerged in the molten slag formed. The voltage at this time was set to 550V. After that * when the waste in the preheating chamber decreases with melting, the scrap iron is charged into the preheating chamber by means of feed 4, and M keeps melting while maintaining the height of the waste iron in the preheating chamber to a certain height. During this period, oxygen is blown in from the double-pipe air outlet at a rate of 40 Nn 3 / hour per false air outlet, that is, the total air outlet is 80N 3 π 3 / hour, and the phenomenon of the hanger of the anti-cold iron source * is followed by the cold that often occurs. The state where the iron source is poured into the melting network. In addition, propane gas was blown into the * K cooling tuyere from the outside of the double tube. Then, the melting is carried out in the melting chamber and the preheating chamber in the presence of scrap iron, and when the amount of molten steel generated in the melting chamber reaches 180 tons *, about 60 tons of molten steel is left in the melting chamber, so that it is equivalent. 120 tons of molten steel is heated in a single pot and heated in a single drum. When tapping, heat the molten steel with a heavy oil burner. The C concentration in the molten steel at the time of tapping was 0.1 wt%, and the melting temperature was 15501. After tapping the steel, the oxygen and coal coke are started again when the power is turned on again. The paper size of the paper is applicable to the China National Standard (CNS) A4 specification (210X297 mm) ---- Γ ---: 11 ^ 1 pack! (Please read the notes on the reverse page each time you fill out this page)-Order. Printed by the Consumer Cooperative of the Central Bureau of Accreditation of the Ministry of Economic Affairs 4 6299 0 a? __B7_ V. Description of the Invention (C5) Blow on people and apply them with repeated quality When the steel volume reaches Ιδ0 tons again, 120 tons of steel is tapped. As a result, under the condition that the total oxygen blowing amount of the oxygen blowing pipe and the bottom blowing air outlet is 33HfB3 / t, and the blowing amount of M and coal coke is 26kg / t, the average time from getting steel to tapping is 40 minutes. , And K is now melting according to the unit electricity consumption of 170 kWh / t. When the oxygen gas tuyere is not blown into i, Jun Tie will accumulate on the remaining unmelted parts near the boundary between molten steel and Ling Tieyuan, and although there is space in front of the scrap iron, the scrap iron does not land on In the melting room, the suspension state continues for a long time. However, the phenomenon of melting stagnation occurs to the extent that M is heated once, but the above-mentioned melting stagnation has not occurred when oxygen is blown in according to the present invention. D About oxygen from the bottom of the furnace Investigate tapping in the case of blowing and non-blowing-the result of the relationship between tapping time and frequency * same as in Example 1 * When oxygen is not blown, the supply rate of scrap iron to the molten copper is reduced and The time from tapping to tapping was prolonged. "However, in the case of oxygen blowing, it took about 40 minutes to achieve tapping, and the melting time was not prolonged. Printed (please read the note on the back f4 first to write this page) [Industrial availability] As explained above * According to the present invention, an arc dissolving device is used with a melting chamber and directly connected to the upper part of the melting chamber The preheating tower is intended to dissolve iron sources such as scrap iron. Therefore, it is not necessary to provide a special device for transporting and supplying M iron sources to the melting chamber. In addition, because M can keep the iron source in the melting chamber and the preheating tower in a continuous state, the iron source is supplied to the preheating tower, and the iron source in the melting chamber is melted by the arc while the iron source is in the melting chamber and the preheating tower. The paper size applies the Chinese National Standard (CNS) Α4 specification (210 × 297 mm). Ti 6ί 46299 0 a? B7 Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs

五、 發明説明 (ββ) 1 1 有 鐵源存在 之 狀 態 下 使 熔 鐵 (如熔鋼 、熔銑等 以下皆同） 1 1 I 出 爐，亦有 可 能 達 成 下 —1 裝 料 之 鐵 源 之 預 熱 而 可 實 琨 極 1 1 高 效率之鐵 源 之 熔 解 0 再 者 由 於 可 減 少 鐡 源 與 由 鐵 源 之 請 ▲ 1 1 熔 解所產生 之 熔 鐵 液 之 接 觸 面 積 可 令 熔 鐵 增 熱 而 可 解 閲 讀 背 1 決 出爐熔鐵 之 溫 度 低 之 問 題 0 此 外 由 於 熔 解 室 中 與 預 熱 面 之 注 塔 相對應之 部 分 及 與 離 間 部 相 對 應 之 部 分 之 底 部 一 部 分 或 意 事 項 I 全 部 '係以熔 解 Μ 中 設 有 .出 部 之 部· 分 之 底 部 為 最 深 位 置 部 ί 而Μ可從 該 最 深 位 置 部 m 朝 著 爐 之 傾 動 方 向 變 高 之 方 式 i ▲ 頁 威 1 傾 斜構成一 傾 斜 部 與 熔 解 室 之 底 部 未 具 傾 斜 部 之 場 合 相 1 ! 較 *可顯著 減 少 鐵 源 與 熔 鐵 之 接 觸 面 積 > 而 可 更 有 效 防 止 i I 出 爐熔鐵之 溫 度 低 之 問 題 0 1 訂 [元件編號之說明] 1 1 熔解爐 1 I 1 a :熔解爐 之 預 熱 塔 側 I 1 lb :熔解爐 之 預 熱 塔 惻 之 相 反 側 1 .\ 線 1 c :熔解爐 之 傾 斜 部 1 Id :出鋼部 底 部 (最深位置） 1 2 預熱塔 1 2a :與預熱 塔 側 上 端 之 廢 氣 吸 引 系 統 連 接 之 排 氣 部 1 1 3 出鋼部 1 4 i 裝料斗 1 | 5 爐篕 1 1 6 電弧電極 1 ί 6 ' :另一電 弧 電 極 1 IV. Description of the invention (ββ) 1 1 In the presence of an iron source, make molten iron (such as molten steel, fusion milling, etc. hereinafter) 1 1 I come out of the furnace, it is also possible to achieve the following -1 loading of the iron source Hot and solid pole 1 1 High-efficiency iron source melting 0 Furthermore, it can reduce the contact area between the iron source and the molten iron produced by the iron source ▲ 1 1 The molten iron produced by melting can make the molten iron heat up and be possible Read the back 1 to solve the problem of the low temperature of the molten iron. In addition, because the part of the melting chamber corresponding to the injection tower on the preheating surface and the bottom part of the part corresponding to the separation part or the matter I are all used to melt Μ is provided. The part of the exit part and the bottom part is the deepest position part ί, and the way in which Μ can increase from the deepest position part m toward the furnace tilting direction i ▲ Page 1 is inclined to form an inclined part and a melting chamber Without the bottom In the case of the oblique part, phase 1! Can significantly reduce the contact area between the iron source and the molten iron compared to *, and can more effectively prevent the problem of the low temperature of the molten iron coming out of the furnace. 1 I 1 a: Preheating tower side of the melting furnace I 1 lb: Opposite side of the preheating tower of the melting furnace 1. \ Line 1 c: Inclined part of the melting furnace 1 Id: Bottom of the tapping part (deepest position) 1 2 Preheating tower 1 2a: Exhaust section connected to the exhaust gas suction system at the upper end of the preheating tower side 1 1 3 Steel tapping section 1 4 i Loading hopper 1 | 5 Grate 1 1 6 Arc electrode 1 ί 6 ': Another Arc electrode 1 I

本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） Q 4 6 2 9 9 0 a? B7 經濟部中夬標準局負工消費合作社印製 五、發明説明（G7) 7 :電弧 8 :熔鋼 9 :熔渣 10 :爐底 11 :爐底電極 12a:氧氣供給用之吹管 I · 12b 煤焦供給用之吹管 13 :支持構件 14 :傾動機構 15 :出鏑口 16 :塞子 17 :渣門 1 8 :傾斜部 101 :熔鋼爐 1 0 1 a :突出部 102 :預熱塔 102a :與廢氣吸引系統連接之排氣部 103 :廢鐵 104 :裝料斗 106 :電弧電極 107 :電弧 108 :熔鋼 109 :熔渣 112a :氣氣供給用之吹管 本紙張尺度適用中國國家標率（CNS ) A4規格（210X297公釐） ~~~~;;r* 裝—— (請先閲讀背面之注意事項ί寫本頁) 訂 -線- 經濟部十央標準局員工消費合作社印製 ^4 62 99 Ο %五、發明説明 11 2 b :煤焦供給用之吹管 11 3 :燃燒器 11 4 :出鋼口 11 5 :渣門 11 6 :氧氣供給裝置 11 7 :燃料供給装置 201 :熔解爐 . 202 :預熱塔 2 0 3 :廢鐵 204 :裝料斗 206 :電弧電極 207 :電弧 208 :熔鋼 209 :熔渣 2 1 0 :傾斜部 211 :爐底電極 212a :氧氣供給甩之吹管 2 12b :煤焦供給用之吹管 214 :出鋼口 215 :渣門 216 :氣體導入口 3 0 1 :熔解爐 302 :預熱塔 302a :與預熱塔側上端之廢氣吸引糸統連接之排氣部 (請先閣讀背面之注意事項ΐ -裝-- π寫本頁) 訂This paper size applies to China National Standard (CNS) A4 (210X297 mm) Q 4 6 2 9 9 0 a? B7 Printed by the Consumers ’Cooperative of the China Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (G7) 7: Arc 8 : Molten steel 9: slag 10: furnace bottom 11: furnace bottom electrode 12a: blowpipe for oxygen supply I · 12b blowpipe for coal char supply 13: support member 14: tilting mechanism 15: outlet 16: stopper 17: Slag door 18: inclined part 101: steel melting furnace 1 0 1a: protruding part 102: preheating tower 102a: exhaust part connected to exhaust gas suction system 103: scrap iron 104: hopper 106: arc electrode 107: arc 108: molten steel 109: slag 112a: blow tube for gas supply This paper size is applicable to China National Standard (CNS) A4 specification (210X297 mm) ~~~~ ;; r * installed—— (Please read the back first (Notes to write this page) Order-line-Printed by the Consumers' Cooperative of Shiyang Standard Bureau of the Ministry of Economic Affairs ^ 4 62 99 〇% 5. Description of Invention 11 2 b: Blowpipe for coal coke supply 11 3: Burner 11 4 : Tap hole 11 5: Slag door 11 6: Oxygen supply device 11 7: Fuel supply device 201: Melting furnace. 202: Preheating tower 2 0 3: Scrap iron 204 : Loading hopper 206: Arc electrode 207: Arc 208: Molten steel 209: Slag 2 1 0: Inclined part 211: Bottom electrode 212a: Blow tube for oxygen supply 2 2b: Blow tube for coal coke supply 214: Steel outlet 215: Slag door 216: Gas inlet 3 0 1: Melting furnace 302: Preheating tower 302a: Exhaust part connected to the exhaust gas suction system at the upper end of the preheating tower side (please read the precautions on the back first)-Installation -π write this page)

旅- V 本紙張尺度適用中周國家標芈（CNS ) Α4規格（210X297公釐） 經濟部中央標準局貝工消費合作社印製 46299 0 at B7 五、發明説明（G3) 3 0 3 :廢鐵 304 :裝料斗 314 :出鋼口 315 :渣門 316 :氣體導入口 3 2 0 :廢氣處理糸統 321 :氣體冷卻塔 323 :袋狀過滹器 3 24 :煙囱 401 :熔解爐 402 :預熱塔 % * _402a .·與嚙熱’塔側上端之廢氣吸引系統連接之排氣部 403 :廢鐵 406 :甯弧電極 408 :熔融液 4 0 Θ :熔渣 4 1 0 :傾斜部 416 :氣體導入口 41 7 :後燃室 418 :氣體導入口 4 2 0 :廢氣處理系統 501 :熔解爐 502 :熔解室 50 3 :預熱室 本紙張尺度逋用中國國家標準（CNS ) Α4規格（210X297公釐） (請先閲讀背面之注意事項再填奪本頁) ,ιτ 線. 經濟部中央標準局員工消費合作社印製 - .6299 0 五、發明説明（70) 504 :爐壁 505 :爐蓋 506 :爐底電極 507 :上部電極（電弧電極） 508 :傾動裝置 5 09 :升降式滾筒 5 1 0 :冷鐵源供給裝置 5 11 :加料斗 5 1 2 :切斷裝置 5 1 3 :供給用滑槽 514:氧氣供給用之吹管 515:碳材供給用之吹管 516 :燃燒器 517 :出鋼口 518 :渣門 5 1 9 ί裝料4 520 :廢鐵 521 :含有高碳之冷鐵源 522 :熔鋼 5 23 :熔渣 524 :電弧 6 01 :熔解爐 602 :熔解室 603 :預熱室 Α7 Β7 (請先閱讀背面之注意事項再％落本頁) -訂 線 表紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） 73 46299 Ο Α7 Β7 經濟部中央標準局員工消費合作社印製 五、發明説明 (71 ) 60 4 ： 爐 壁 60 5 : 爐 蓋 606 ： 爐 底 電 極 607 ： 上 部 電 極 (電弧電極） 608 ： 氧 氣 供 給 用 之 吹 管 609 ： 碳 材 供 給 用 之 吹 管 610 ： 燃 燒 器 611 ： 出 鋼 π 612 ： 渣 門 613 ： 裝 料 斗 615 ： 廢 m 702 ： 熔 解 室 703 ： 預 熱 室 70 4 ： 爐 壁 70 5 ： 爐 蓋 706 ： 爐 底 電 極 70 7 ： 上 部 電 極 70 8 ： 氣 吹 管 709 ： r*y m 材 吹 管 710 ： 燃 燒 器 712 ： 風 D 713 : 出 鋼 P 714 ： 岀 渣 □ 715 ： 進 料 斗 本紙張尺度適用中國國家標準（CNS ) Α4規格（210 X 297公釐） 74 ' 462990 經濟部中央標準局員工消費合作社印製 五、發明説明 (72) 716 ： 冷 鐵 源 717 ： 熔 鋼 718 ： 熔 融 渣 液 719 ： 電 弧 720 ： 供 給 Ρ 721 ： 導 管 722 ： 門 723 ； 門 724 ： 移 動 架 車 801 ： 熔 解 爐 802 ： 熔 解 室 803 ： 預 埶 室 804 ： 爐 壁 805 ： 熝 蓋 S06 ： 爐 底 電 極 807 ： 上 部 電 極（ 電 弧 甯 極 ) 807a :熔解室電 弧 產 生 用 之 上 部 電 極 mb •‘升溫室電 弧 產 生 用 之 上 部 電 極 80S ： 傾 動 式 滾筒 8 09 : 傾 動 裝 置 810 ： 吹 管 810a :氧氣# U合 用 之 吹 管 810b :氧氣傾 S給 用 之 吹 管 811a :煤焦吹入 用 之 裝 置 本紙張尺度適用中國國家襟準（CNS ) A4規格（210 X 297公釐） 75 經濟部中央標準局員工消費合作社印製 4 6 2 9 9 Ο Α7 Β7五、發明説明（73 ) 811b :煤焦吹入用之裝置 81S :廢鐵 δ17 :裝料斗 821 :出鋼口 824 :渣門 901 :熔解爐 902 :熔解室 90 2c :積升部 903 :預熱室 905 :爐壁 906 :爐蓋 907 :爐底電極 90 8 :上部電極 910 :傾動裝置 912:氧氣供給用之吹管 913:碳材供給用之吹管 91 4 :燃燒器 915 ··出鋼口 9 1 6 :渣門 91 7 :進料4 •918:上部電極（電弧電極） 920 :熔融渣液 92 1 :電弧 10 03 :預熱塔 ·—！： I - -- I. - I(±^- - - I - : (請先閱讀背面之注意事項再^聲本頁)Brigade-V This paper size is applicable to the National Standard (CNS) A4 size (210X297 mm) printed by the Central Standards Bureau of the Ministry of Economic Affairs and printed by the Bayer Consumer Cooperatives 46299 0 at B7 V. Description of the Invention (G3) 3 0 3: Scrap Iron 304: hopper 314: tapping hole 315: slag door 316: gas inlet 3 2 0: exhaust gas treatment system 321: gas cooling tower 323: bag filter 3 24: chimney 401: melting furnace 402: pre Hot tower% * _402a .. Exhaust section 403 connected to the exhaust gas suction system at the upper end of the scorching tower side: 403: scrap iron 406: arc electrode 408: molten liquid 4 0 Θ: slag 4 1 0: inclined section 416: Gas inlet 41 7: Post-combustion chamber 418: Gas inlet 4 2 0: Exhaust gas treatment system 501: Melting furnace 502: Melting chamber 50 3: Preheating chamber This paper uses China National Standard (CNS) A4 specification (210X297) (Mm) (Please read the notes on the back before filling this page), ιτ line. Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs-.6299 0 V. Invention Description (70) 504: Furnace Wall 505: Furnace Cover 506: Furnace bottom electrode 507: Upper electrode (arc electrode) 508: Tilt device 5 09: Lifting roller 5 1 0: Iron source supply device 5 11: Hopper 5 1 2: Cut-off device 5 1 3: Supply chute 514: Blow pipe for oxygen supply 515: Blow pipe for carbon material supply 516: Burner 517: Steel outlet 518: Slag door 5 1 9 ί charge 4 520: scrap iron 521: cold iron source containing high carbon 522: molten steel 5 23: slag 524: arc 6 01: melting furnace 602: melting chamber 603: preheating chamber A7 B7 (Please read the precautions on the back before% page on this page)-The paper size of the thread gauge is applicable to the Chinese National Standard (CNS) Α4 specification (210X297 mm) 73 46299 〇 Α7 Β7 Explanation of the invention (71) 60 4: Furnace wall 60 5: Furnace cover 606: Furnace bottom electrode 607: Upper electrode (arc electrode) 608: Oxygen supply blow tube 609: Carbon material supply blow tube 610: Burner 611: Tap π 612: slag door 613: hopper 615: waste m 702: melting chamber 703: preheating chamber 70 4: furnace wall 70 5: furnace cover 706: furnace Electrode 70 7: Upper electrode 70 8: Air blowing tube 709: r * ym material blowing tube 710: Burner 712: Wind D 713: Steel tapping P 714: Dross □ 715: The paper size of the feeding hopper applies the Chinese National Standard (CNS) Α4 specification (210 X 297 mm) 74 '462990 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (72) 716: Cold iron source 717: Molten steel 718: Molten slag 719: Arc 720: Supply P 721: Duct 722: Door 723; Door 724: Mobile carriage 801: Melting furnace 802: Melting chamber 803: Pre-chamber 804: Furnace wall 805: Hom cover S06: Bottom electrode 807: Upper electrode (arc arcing electrode) 807a : Upper electrode mb for arc generation in the melting chamber • Upper electrode for greenhouse arc generation Pole 80S: Tilt roller 8 09: Tilt device 810: Blow tube 810a: Oxygen #U combined blow tube 810b: Oxygen pour S supply tube 811a: Coal coke blowing device This paper is applicable to China National Standards (CNS) ) A4 size (210 X 297 mm) 75 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 4 6 2 9 9 〇 A7 B7 V. Description of the invention (73) 811b: Device for blowing coal coke 81S: Waste iron δ17 : Hopper 821: Tap hole 824: Slag door 901: Melting furnace 902: Melting chamber 90 2c: Accumulation section 903: Preheating chamber 905: Furnace wall 906: Furnace cover 907: Furnace bottom electrode 90 8: Upper electrode 910 : Tilt device 912: Blow pipe for oxygen supply 913: Blow pipe for carbon material supply 91 4: Burner 915 ·· Steel outlet 9 1 6: Slag door 91 7: Feed 4 • 918: Upper electrode (arc electrode) 920: molten slag 92 1: arc 10 03: preheating tower-! ： I--I.-I (± ^---I-: (Please read the precautions on the back before ^ sound this page)

S-ST .線r 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）S-ST .line r This paper size applies to China National Standard (CNS) A4 specification (210X297 mm)

Vb 46299 0 A7 __B7 五、發明説明（74) 1007 :上部電極（電弧電極） 1007a :電弧產生用之電極 1007b:電弧產生用之電極 1013 :熔融液 1 0 1 4 :熔渣 1022 :出鋼口 ---------^---^-- t ,. 、：. (請先閱讀背面之注意事項^4r本頁) 訂 線. 經身部中央樣準局貝工消費合作社印裝 本紙張尺度適用中國國家標準（CMS ) A4規格（210X 2.97公釐）Vb 46299 0 A7 __B7 V. Description of the invention (74) 1007: upper electrode (arc electrode) 1007a: electrode for arc generation 1007b: electrode for arc generation 1013: melt 1 0 1 4: slag 1022: steel outlet --------- ^ --- ^-t,.,:. (Please read the precautions on the back ^ 4r page first) Order the line. Printed by the Shell Specimen Consumer Cooperative of the Central Bureau of Procurement and Testing The size of the paper is applicable to the Chinese National Standard (CMS) A4 (210X 2.97 mm)

Claims (1)

4 6 2 9 9 Ο Β8 C8 D8 六、申請專利範圍 經濟部中央標率局員工消費合作社印製 1.—種藉電弧使冷鐵源溶解之設備，包括： (a) 熔解室，被用Μ作為冷鐵源熔解用之空間； (b) 直接與該熔解室之一側之上部連接之預熱塔，被用 Μ將該熔解室所產生之廢氣導入K預熱冷鐵源； (c) 電弧電極，.被用以供姶在該熔解室内使冷鐵源熔解 所需要之熱； (d) 冷鐵源供給裝置，藉此以可保持冷鐵源在該熔解室 内及該預熱塔肉連續存在之狀態之方式將冷鐵源供給於該 預熱塔； (e) 突設於該焙解室且具有出鋼口之出鋼部；Μ及 (f) 傾動裝置，被用Κ使該熔解室注該出鋼部方面傾動 者。 2.如申請蓴利範圍第1項之設備，其中具有該出鋼口之 該出鋼部為一出鋼部，在其位置之方向上不同於將該預熱 塔内之冷鐵源往該熔解室供給之方尚者。 3 .如申請專利範圍第2項之設備，其中該出鋼部為朝著 與冷鐵源之供給方向正交之方向設置之出鋼部者。 4. 如申請專利範圍第1項之設備，其中進一步為了在該 熔解室之傾動之際有可能阻止冷鐵源往該出鋼部流出，在 對該熔解室鄰接設置之該預熱塔之位置與對該熔解室鄰接 設置之出鋼部之位置之間具有離間部者。 5. 如申請專利範圍第4項之設備，其中該溶解室之設有 該預熱塔之位置與設有該出鋼部之位置之間之離間距離為 一距離，長於從該預熱塔至該熔解室Μ安息角所擴展之冷 (請先閲讀背面之注意事項再广、本頁) -裝_ 訂 線 木紙張尺度適用中固國家標準（CNS )八4規格（210Χ297公釐） -1 162990 A8 B8 CS D8 經濟部中央標準局負工消費合作社印— 六、申請專利範圍 鐵源之水平距離者。 6. 如申請專利範圍第1項之設備，其中又具有移動裝置 ，被用以在出鋼之際之該熔解室之傾動時，追隨該熔解室 內移動之熔鐵，使該電弧電極移動者。 7, 如申請專利範圍第1項之設備*其中又具有其他之電 弧電極，被設在該出鋼部者》 S.如申請專利範圍第1項之設備*其中進一步在該預熱 塔之下方位置具有氧氣供給裝置者。 9. 如申請專利範園第1項之設備，其中進一步在該預熱 塔之下方位置具有燃料供給裝置，被用Μ與氧氣一起將燃 料供給於冷鐵源者。 10. 如申請專利範圍第1項之設備，其中又具有：碳材供 給裝置，被用以將碳材供給於該熔解室；Μ及氧氣供給裝 置，被用Μ將氧氣供給於該熔解室者。 11. 如申請專利範圍第1項之設備，其中又具備一被用Μ 藉含氧氣氣體之供給而使上述熔解室所產生之未燃燒氣體 通過該預熱塔後之殘餘氣體後燃燒（after burning)之後 燃室，Μ及被用Μ冷卻該後燃室所排出之廢氣之冷卻部， 且具有被用Μ使該後燃室所排出之廢氣之溫度變為指定溫 度以上之裝置者。 12. 如申請專利範圍第1項之設備，其中又具有吸附劑供 給裝置，被用Μ將吸附劑供給於藉該冷卻部急泠之廢氣者。 13. 如申請專利範圍第1項之設備，其中進一步在一從該 熔解室内之熔鋼液面位置至該預熱塔上部之冷鐵源之上端 (請先閱讀背面之注意事項^彳私本頁) -裝- .訂_ 線 私紙張尺度逋用中國國家梯準（CNS ) Α4規格（2丨0X297公釐） -2 - 46299 Ο AS Β8 CS D8 六、申請專利範圍 一 鐵燃 有冷分 具於部 且給 一 ， 供體 口 α 氣 人入燒 導導燃 體體未 氣氣之 之項生 段該產 數從所 複體室 或氣解 段氣熔 一 氧該 有含使 設將Κ 内Μ, 圍用分 範被部 之，入 置置裝 位裝源 者 燒 給 供 體 氣 有 具 又 中 其 備 設 之 項 1Χ 第 圍 範 利 專 謅 Φ 如 源 鐵 冷 之 内 室 解 熔 該 入 吹 體。 氣者 性中 惰鋼 或熔 氣之 氧近 使附 Μ 界 用境 被之 ， 鋼 置熔 裝與 : 鐵 驟冷 步熱 述預 下Μ 括室 包熱 ’ 預 法入 方導 之.Μ 解予 溶m 源廢 鐵之 冷生 使' 產 弧所 電室 藉解 種焙 一 將 (請先閱讀背面之注意事項1/\馬本頁) .裝. 源 存 續 連 内 室 解 熔 該 及 内 塔 熱 預 該 在 源 鐵 冷 持 保 可 M 同 之 塔 熱 預 該 於 給 供 續 斷 或 缠 連 源 鐵 冷 將 式 方 之 態 狀 之 在 解 熔 源 鐵 冷. 之 内 室 解 熔 該 使 極 電 弧 甯 藉 時 助 傾 室 解 熔 該 使 時 多 積 量 鋼 熔 之 内 室 解 熔 該 當 狀 之 , 內 溫室 升解 使熔 K 該 鋼及 熔内 熱塔 加熱 間預 時該 定於 一 在 按存 極續 電連 弧源 電鐵 該冷 藉在 打. 線. 經濟部中央標準局員工消費合作社印製 完 源 鐵 冷 之 内 室 鋼 熔 該 與 鋼 熔 鋼；使 專 出 Μ f 0 2 行i動 施j傾 室 下16解 態 熔 法 方 之 項 5 1 第 圍 範 利 專 請 申 D $ 有 具 又 中 其 亥 fee 步 之 離 分 者 驟 驟 .步 1 有 具 又 中 其 法 方 之 項 5 1X 第 圍 範 利 專 請 如 鐵 冷 入 吹 氣 氧 將 置 位 方 τ. 之 塔 熱 預 該 之 室 解 熔 該 在 即 者 源 鐵 冷 入 吹 時 同 氣 氧 該 與 料 燃 將 或 源 申 如 請 氧 使 i 有 具 又 中 其 法 方 之 項 5 第 圍 範 專 本紙張尺度逋用t國國家標準（CNS > A4規格（210X297公釐） 3 ^46299 0 ABCD 六、申請專利範圍 氣及碳材吹人該熔解室之步驟者。 玉9,如申請專利範圃第15項之方法，其中又具有一步驟 ’即在溶解中及出鋼時以—次裝料里之40¾以上之冷鐵源 可留存於該熔解室内及該預熱塔内之方式_行控制者。 20. 如申請専利範圍第17項之方法，其中又具有一步驟 ’使吹入預熱塔下部之該氧氣量與吹入該熔解室之該氧氣 量之合訐成為25Nm3 /噸K上者。 21. 如申請專利範圍第15項之方法，其中該熔解步驟具 有下述步驟：藉電弧加熱以及利用輔助熱源及氧氣供給於 該溶解室内之手段使該溶解室内之冷鐵源熔解，在該熔解 室所產生之未燃燒廢氣通過預熱塔後之殘餘氣體未被排出 於系統外之情況下將含氧氣氣體供給於該預熱塔以使後燃 燒而使駿氣溫度變為指定溫度以上，然後將該廢氣連續急 冷者。 具 驟 步 解 熔 該 中 Λ 法 方 之 項 5 11 第 圍 範 利 專 請 串 如 於熔 給該 供從 氣一 氧在 及 ， 源解 熱熔 助源 輔鐵 用泠 利之 及內 Μ 室 熱解 加熔 弧該 電使 藉段 : 手 驟之 步内 逑室 下解 有熔 請 閲 之 注 I 頁 經濟部中央標準局員工消費合作社印製 位氣 端氧 上含 之將 源 Μ 鐵， 冷Ρ 之入 部導 上體 塔氣 熟之 預段 該數 至複 置或 位段 面 I 液置 鋼設 熔内 之 圍 内範 室之 解置 解 熔 該 使Μ 分。 部者 人焼 裝燃 源部 鐵全 冷或 於分 姶部 供一 口體 入氣 導燒 體燃 氣未 等之 該生 At 從產 體所 氣室 者 驟 步 之 劑 S. ί 附 Τ > 吸 法f 法 * 姶 * 方it:、方 之 t 之 氣 項 項 u廢15 2 ί 2 1 封 ί® 後Μ圍、圍 冷 j 急 J 荊 ％ 利 帛 令 $過申 ㈤經⑽ 3 ί 4 2 氣 2 廢 該 使1 有 具 又 中 後 燒 燃 後 項 該 中 其 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） 4 6 2 99 0 ABCD 六、申請專利範圍 驟 步 述 下 有 具 中 其 法 方 之 〇 項 -5 者 1 上第 M圍 P 範 1J ο 利 9 [ 為專 度請 溫申—如 氣. 廢25 之 内之之 室内止 解室為 熔解置 該熔位 於該端 給從上 供一之 氣在源 氧 r 鐵 及解冷 料熔之 燃源部 助鐵上 輔冷塔 用之熱 利內預 及室該 K 解至 熱熔置 加該位 弧使面 電段液 藉手鋼 之熔 ， 源 口鐵 入冷 導於 體給 氣供 之口 段入 數導 複體 或氣 段項 1 該 置從 設體 上氣 置氣 位氧 之含 定之 指量 所定 内指 圍將 範M 用預 利該 俾在 , 氣 燒廢 燃之 體生 氣產 燒所 燃燒 未燃 之·體 生氣 產燒 所燃 室未 解項 溶該 該使 使體 M氣 分氣 部氧 人含 裝該 經 氣0 該 使 後 然 ， ο 上者 Μ 冷 度急 溫部 定卻 指冷 達之 可.接 度連 溫部 之上 近塔 附熱 口預 出，該 塔與 熱過 冷 該 在1 有 具 中 其 法 之 項 5 2 第 圍 範 ί 專 請 Φ 如 者 驟 步 之 劑 附 吸 給 供 氣 廢 對 後 氣 騷 冷 急 部 卻 Ρ 出 塔 預 該 中 其 法 方 之 項 5 2 第 圍 範 利 專 請 甲 如 驟 步 1 有 具 中 其 法 。 方 者之 上 項 乂 2 W2 Ρ 第 00圍 ;範 利 專 請 申 如 為 度 溫 氣 顒 之 近 附 請先閱讀背面之注意事項本頁) .裝· 訂 線 經濟部中央標準局負工消費合作社印製 量 入 吹 部Q1 全量 之給 體 供 氣氣 氣氧 氧之 含出 項算 該所 將量 乃流 及 度 濃 氣 氧 其 據 根Μ 量 氣 氧 之 内 室 解 熔 入 吹 於 對 以 予 式 方 之 條 關 之 示 所 式 \%lr- A /_\ 之 下Μ 為 成 可 鐘 分 者 定 設 驟 步 述 下 有 具 中 其 法 方 之 項 5 第 9圍 ο範 VII Μ C： 利 Q 專 VII 請 Q 3 5 申 5 熔導 於氣 給空 供將 氣際 氧此 及 > 源解 熱熔 助源 $ 0 之冷 等之 焦内 媒室 用解 利熔 及該 Μ 使 熱段 加手 弧之 Ϊ ha 藉室 解 本紙張尺度逋用中國國家標準（CNS ) A4規格（2I0X2S»7公釐） 5 '46299 0 ABCD 六、申請專利範圍 入此熔解室，而MC02/(C02+C0)=0D時可成為0.3忘ODg 0 . 7之方式在該熔解室内使未燃燒氣體燃燒者。 30.—種使用如申請專利範圍第1至7項之電弧熔解設備 之冷鐵源之電弧熔解方法。 (請先聞讀背面之注意事項4,1¾本頁) -裝. 訂： 線 經濟部中央標準局員工消費合作社印製 本紙張尺度適用中國國家樣準（CNS > A4規格（210 X 297公釐） -6 _4 6 2 9 9 〇 Β8 C8 D8 6. Scope of patent application Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 1.—A kind of equipment that dissolves cold iron sources by electric arc, including: (a) a melting chamber, which is used by M As a space for the cold iron source to melt; (b) a preheating tower directly connected to the upper part of one side of the melting chamber, and the exhaust gas generated by the melting chamber is introduced into the K to preheat the cold iron source; (c) The arc electrode is used to supply the heat required for melting the cold iron source in the melting chamber; (d) a cold iron source supplying device, so as to keep the cold iron source in the melting chamber and the preheating tower meat A cold iron source is supplied to the preheating tower in a continuously existing state; (e) a tapping portion protruding from the roasting chamber and having a tap hole; M and (f) a tilting device, which is used to make the The melting chamber is filled with the person who tilts the tapping part. 2. If applying for the equipment in the profit scope item 1, where the tapping part with the tapping port is a tapping part, the direction of its position is different from that of the cold iron source in the preheating tower to the Founder of the melting room. 3. The equipment according to item 2 of the scope of patent application, wherein the tapping section is a tapping section provided in a direction orthogonal to the supply direction of the cold iron source. 4. As for the equipment in the scope of patent application, in order to further prevent the cold iron source from flowing out of the tapping part when the melting chamber is tilted, the preheating tower is located adjacent to the melting chamber. There is an intervening portion between the position of the tapping portion provided adjacent to the melting chamber. 5. As for the equipment in the scope of patent application 4, the distance between the dissolution chamber where the preheating tower is located and the location where the tapping part is located is a distance longer than the distance from the preheating tower to The coldness of the melting room M's resting angle (please read the precautions on the back and then widen this page)-Installation _ Dimensions of the wood paper are applicable to the National Solid Standard (CNS) 8 4 specifications (210 × 297 mm) -1 162990 A8 B8 CS D8 Printed by the Central Bureau of Standards of the Ministry of Economic Affairs and Consumer Cooperatives — Six. Those who apply for a patent for the horizontal distance of iron sources. 6. If the equipment in the scope of patent application No. 1 has a moving device, it is used to follow the moving iron in the melting chamber and make the arc electrode move when the melting chamber tilts during tapping. 7, if the equipment in the scope of patent application 1 * has other arc electrodes, which are located in the tapping department "S. If the equipment in the scope of patent application 1 * is further below the preheating tower Location with oxygen supply device. 9. For example, the equipment of the patent application Fanyuan No. 1 further includes a fuel supply device at a position below the preheating tower, and the fuel is supplied to the cold iron source together with oxygen. 10. If the equipment in the scope of the patent application is No. 1, it also has: a carbon material supply device for supplying carbon material to the melting chamber; and an oxygen supply device for supplying oxygen to the melting chamber by M . 11. If the equipment in the scope of patent application No. 1 is equipped with an afterburning gas generated by the above melting tower through the preheating tower, the unburned gas generated by the above-mentioned melting chamber is burned by the supply of oxygen-containing gas. ) After the combustion chamber, M and the cooling part for cooling the exhaust gas discharged from the after-combustion chamber by M, and having a device for making the temperature of the exhaust gas discharged from the after-combustion chamber to be higher than a specified temperature by M. 12. As for the equipment in the scope of patent application No. 1, which also has an adsorbent supply device, it is used to supply the adsorbent to the exhaust gas that is quenched by the cooling unit. 13. As for the equipment in the scope of patent application No. 1, which is further from the molten steel level in the melting chamber to the upper end of the cold iron source in the upper part of the preheating tower (please read the precautions on the back first) (Page) -Installation-.Order_ Standard for Chinese paper (CNS) Α4 size (2 丨 0X297mm) -2-46299 〇 AS Β8 CS D8 VI. Patent application scope It is provided in the part, and the donor port α gas enters the combustion stage of the pilot gas body and the gas phase of the gas phase is generated from the compound room or the gasification section. Κ 内 ， The surrounding quilt is divided into parts, and the person who puts the source into place and burns it to the donor gas has one of the items provided in it. 1 × The range of the fan is special. Φ If the source iron is cold, the inner chamber is melted. The blown body. The oxygen of inert steel or molten gas in the energetic nature has been used in the application of steel, and the steel is welded with: The iron quenching step is described in the following, including the chamber heating method. The solution is guided by the method. The cold generation of m source scrap iron makes the electric room of the arc production plant break down and roast (please read the precautions on the back 1 / \ page) first. Install the source. Should be held in the source iron cold warranty M and the tower should be given to the continuous supply or interruption of the source iron cooling will be in the state of the source iron cold melting. The internal chamber should be melted to make the arc arc The time-assisted tilting chamber should be thawed, and the inner chamber that melts a large amount of steel should be thawed. The inner greenhouse should be thawed to melt the steel and the heating tower. The electric arc source electric iron should be on the line. The employee's cooperative of the Central Standards Bureau of the Ministry of Economic Affairs has finished printing the source iron cold steel and the steel melting steel; Item 16 of the solution melting method under the tilting chamber 5 1 Fen Fan Li specially requested to apply for D $ You have the steps to separate the steps. Step 1 You have the French method 5 1X Fen Fan specially invited to cool off like iron. Oxygen will be set on the side of τ. The tower preheats the room to melt it. When the source iron is cold blown in, it will be the same gas as the oxygen. The source or the source will apply for oxygen, so that i has the right method. 5 The paper size of the fan book uses the national standard of China (CNS > A4 specification (210X297 mm) 3 ^ 46299 0 ABCD 6. Application for patent scope gas and carbon material blow the steps of the melting chamber. Jade 9 For example, if the method of applying for patent No. 15 in the patent, there is a step 'that is, in the dissolution and tapping, the cold iron source of more than 40¾ in the secondary charge can be retained in the melting chamber and the preheating tower. 20. The method in item 17 of the scope of benefits, which also has a step of 'combining the amount of oxygen blown into the lower part of the preheating tower with the amount of oxygen blown into the melting chamber. Become the 25Nm3 / ton K. 21. If applying for a special The method according to item 15, wherein the melting step has the steps of melting the cold iron source in the dissolution chamber by means of arc heating and the use of auxiliary heat sources and oxygen supply in the dissolution chamber, When the residual gas after the combustion exhaust gas passes through the preheating tower is not discharged outside the system, an oxygen-containing gas is supplied to the preheating tower to make post-combustion to make the temperature of the gas above the specified temperature, and then the exhaust gas is continuously quenched. By. With the step of melting the Λ method in the 5th step, Fan Li specially asked for the melting of the supply gas and oxygen, the source decomposition and melting, the auxiliary iron, and the internal M chamber pyrolysis. Add the melting arc to the electric borrowing section: In the step, there is a melting solution under the chamber. Please read the note I on page I. Printed by the Ministry of Economic Affairs, Central Standards Bureau, Consumer Cooperatives. The entrance of the upper part of the upper part of the upper part of the gas column to the reset or position of the surface of the liquid steel set in the molten steel enclosure inside the room to dissolve the melting points. The person who pretends that the source iron is completely cold or provides a mouthful of gas in the branching section, and the gas is not waiting for the gas. At the step of the gas chamber of the production body, the agent S. ί Attached T > Suction method f method * 姶 * Fang it :, Fang Zhi t's air item u waste 15 2 ί 2 1 seal ί ® after M around, surrounded by cold j urgent J Jing% profit order $ 过 申 ㈤ 经 ⑽ 3 ί 4 2 Gas 2 Abandonment should be used. 1 It has a medium and a post-combustion. The paper size of this paper applies Chinese National Standard (CNS) A4 specifications (210X297 mm). 4 6 2 99 0 ABCD 6. The scope of patent application steps In the following, there are 0-5 items in the legal method. 1 On the M block P Fan 1J ο Lee 9 [For the special request, please Wenshen-Ruqi. The indoor stop room within the waste 25 is set for melting. The melt is located at this end, and the gas supplied from above is used in the source oxygen r iron and the uncooling material to melt the heat source to help the iron on the auxiliary cooling tower in the cold room. The K is dissolved to the hot melt and the arc is added. The surface electricity section liquid is melted by the hand steel, the source iron is cooled and the gas supply is supplied to the mouth of the gas supply. Suppose that the air level of oxygen on the body is set with the specified amount of oxygen. The inner finger is bounded by the range M. It should be stored in advance. The gas burned by the burned body is not burned by the burned body. The burned room is not burned by the burned body. The solution is to dissolve the body, the gas, the gas, the oxygen, the oxygen, the gas, the gas, and the gas, and then the ο. The above, the cold and rapid temperature of the upper part is determined to be cold. The connection is near the tower above the temperature. The attached heating port is foreseen, the tower and the heat are too cold, and there are some ways to do it. 5 2 Section Fan ί Please invite Φ If the step of the agent is attached to the gas supply waste to the rear gas, the cold emergency department However, when P comes out of the tower, it should predict the item in its legal method. 5 2 Fan Li specially asked A to have the correct method as in step 1. The second party is above item 2 W2 Ρ 00; Fan Li specially requested that if the temperature is near, please read the precautions on the back page). Cooperative printed quantity input blowing unit Q1 The total amount of gas supplied to the donor is supplied by the gas supply. The quantity of the oxygen is calculated by the institute. Use the formula of the formula formula to show the formula \% lr- A / _ \ The following M is a set of minutes that can be divided into steps. The following steps are included in the legal method. 5 Ninth circle ο Fan VII Μ C: Profit Q Special VII Please Q 3 5 Application 5 Fused in gas to air supply to supply air oxygen and > Cold source of hot melt source $ 0, etc. in the coke media room for melting and melting, and the M The hot section plus the arc of the hand ha The paper size used in the room solution uses the Chinese National Standard (CNS) A4 specification (2I0X2S »7 mm) 5 '46299 0 ABCD 6. The scope of patent application is in this melting chamber, and MC02 / ( C02 + C0) can be 0.3 when ODg is 0. 7 way to make unburned in the melting chamber Bodies were burning. 30. An arc melting method using a cold iron source such as the arc melting equipment in the scope of claims 1 to 7 of the patent application. (Please read the Precautions on the back of this page 4,1¾ this page)-Binding. Order: Printed by the Central Consumers Bureau of the Ministry of Online Economics, Consumer Cooperatives. Centimeters) -6 _
TW88111916A 1998-03-03 1999-07-14 Arc melting apparatus and method for cold iron source TW462990B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP05049998A JP3521277B2 (en) 1998-03-03 1998-03-03 Cold iron source melting method and melting equipment
JP15390898A JPH11325735A (en) 1998-05-19 1998-05-19 Method and facility for melting cold iron source
JP18000098A JP2000017319A (en) 1998-06-26 1998-06-26 Operation of arc furnace
JP18000398A JPH11344287A (en) 1998-04-01 1998-06-26 Operation of arc furnace
JP9716099A JP2000292064A (en) 1999-04-05 1999-04-05 Melting method and melting facility for cold iron source

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Publication Number Publication Date
TW462990B true TW462990B (en) 2001-11-11

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TW88111916A TW462990B (en) 1998-03-03 1999-07-14 Arc melting apparatus and method for cold iron source

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