TW384380B - Melting installation with charge preheater - Google Patents

Melting installation with charge preheater Download PDF

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Publication number
TW384380B
TW384380B TW087120046A TW87120046A TW384380B TW 384380 B TW384380 B TW 384380B TW 087120046 A TW087120046 A TW 087120046A TW 87120046 A TW87120046 A TW 87120046A TW 384380 B TW384380 B TW 384380B
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TW
Taiwan
Prior art keywords
furnace
fuel energy
preheater
fossil fuel
patent application
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Application number
TW087120046A
Other languages
Chinese (zh)
Inventor
Jean-Luc Roth
Wilhelm Burgmann
Serge Devillet
Original Assignee
Wurth Paul Sa
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Publication of TW384380B publication Critical patent/TW384380B/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52Manufacture of steel in electric furnaces
    • C21C5/527Charging of the electric furnace
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/56Manufacture of steel by other methods
    • C21C5/562Manufacture of steel by other methods starting from scrap
    • C21C5/565Preheating of scrap
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/18Arrangements of devices for charging
    • F27B3/183Charging of arc furnaces vertically through the roof, e.g. in three points
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/20Arrangements of heating devices
    • F27B3/205Burners
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/22Arrangements of air or gas supply devices
    • F27B3/225Oxygen blowing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D13/00Apparatus for preheating charges; Arrangements for preheating charges
    • F27D13/002Preheating scrap
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Details (AREA)

Abstract

A melting installation is described, consisting of a furnace vessel comprising a wall and a furnace roof with an edge, at least one electrode being capable of insertion at least partly into the furnace vessel through an opening located in the furnace roof, and a charge preheater in the form of a shaft. The preheater is positioned on the said furnace roof and forms a feed opening in it. It comprises a first wall, furthest away from the edge of the roof, and a second wall, nearest the said edge of the roof. According to the invention, the said charge preheater is offset from the said edge of the roof, so that a region for the supply of fossil fuel energy is formed in the furnace vessel between an imaginary extension of the second preheater wall in the furnace vessel and the wall of the furnace vessel.

Description

A7 _____________B7__ 五、發明説明(i ) 本發明係相關於一種附有加料預熱器之熔煉設備,其 係用於p例如是鐵屑及/或預還原生成物等固體金屬生成 物而製造鋼 歐洲專利申請案E P — A — 〇 3 8 5 4 3 4中欽 述了此等熔煉設備。這是一種電弧爐,其係包括有一爐身 ’該爐身係具有一頂部以及一井之形式所呈現的加料預熱 器。該加料預熱器係主要包括有一給料器,其中該給料器 係裝配在爐頂上’而後者係具有一進料開口。該給料器係 被側向地定位在頂部,以致其外壁係沿著爐身壁之延伸而 放置。此等配置係引導出一種簡單的技術,在爐子中央部 分留下充足的空間,用以使電極經由頂部而插入。 然而,鐵屑係經由預熱器而裝載於靠近爐壁的區域中 ,此等配置具有將能源供應於爐身中一相當不對稱的缺點 --- — - I — 〇 經漪部中夾標车扃只工消费合作社印^ (誚先Μ讀背而之注$項再填寫本頁) 爲了^將能源供應於爐身中之T對稱,故發展出一 竃弧爐,其中一預熱器給料器係被定位在頂部的中央區域 。接著,中央給料器經由兩電極而相接,以便將兩具有相 同動力之電弧定位在頂部給料器之進料開口的兩側。此等 類型之爐子係具有一相當高的效能,但是在給料器兩側之 兩電極則使得預熱器之技術大大地複雜了,其係接著必須 是非常高的。因爲在每一電極與爐身之壁之間所需的最小 距離,此技術亦意味著該爐子必須是非常大的。再者,由 於!^^&素,此技術大大地限制了礦物燃料能源之使用 ,尤其是在以以氣體燃燒器形式呈i的狀 ______ 3__ 本紙張尺度適;fl中阀《家標呤(rNS ) Λ4規格(210X 297公龙) 經消部中央櫺嗥局β工消费合作社印絮 A7 _ B7___ 五、發明説明(> ) 本發明之目標係爲提出一種附有一用以預熱加料之熔 煉設備,其並未具有以上所述之缺點。 與未發明一致的是,此目標係藉由根據申請專利範圍 第1項之熔煉設備所達成。 根據本發明之熔煉設備,其係包括有一爐身,該爐身 係具有一壁以及一具有邊緣之爐頂;至少一電極,其係能 夠經由爐頂上之開口而至少局部地插入該爐身中;以及— 加料預熱器,其係爲一井之形狀。該預熱器係被定位在爐 頂上,並且在該頂部上係形成有一進料開口。該預熱器包 括有一第一壁,其係爲距離該頂部之邊緣最遠者,以及一 第二壁,其係爲最接近該頂部之邊緣者。根據本發明,該 加料預熱器係從該頂部之邊緣位移,以致一用以供應礦物 燃料能源之區域係形成在該爐身中介於該預熱器之第二壁 進入該爐身中之一假想延伸線與該爐身之爐壁之間處。 在將鐵屑加入爐子中的期間,鐵屑柱可以在該預熱器 下方之電極側及用以供應礦物燃料能源之區域側散開,並 且可以在能源供應區域中形成一個崩塌斜坡。在此崩塌斜 坡上方,一個沒有鐵屑之區域係形成在礦物燃料能源供應 區域中,其中礦物燃料能源之供應並未被鐵屑所阻礙。因 此,從熔煉循環開始時,將大量的礦物燃料能源注入供應 礦物燃料能源之區域中是有可能的,其與傳統預熱器相較 下係大大地降低了出現在爐中能源供應之不對稱性》接著 ’熔煉過程在鐵屑柱之數個點上同時開始,這是由於後者 ------- 〜--------- 在一側係藉由電極或諸電極所產生之電弧而被加熱,而在 _____4__ 本紙張尺度適州中國囤家棉埤((,NS ) Λ4規格(210X 297公釐) (誚先閲讀背而之注意事項再填寫本頁)A7 ____________B7__ 5. Description of the invention (i) The present invention relates to a smelting equipment with a charging preheater, which is used to make steel in Europe such as iron filings and / or pre-reduction products such as solid metal products Such a smelting plant is described in the patent application EP — A — 〇 8 8 5 4 3 4. This is an electric arc furnace, which includes a furnace body, which has a charging preheater in the form of a top and a well. The feed preheater system mainly includes a feeder, wherein the feeder is mounted on the furnace top 'and the latter has a feed opening. The feeder is positioned sideways on the top so that its outer wall is placed along the extension of the furnace wall. These configurations lead to a simple technique that leaves sufficient space in the center of the furnace for the electrodes to be inserted through the top. However, iron filings are loaded in the area close to the furnace wall via a preheater. These configurations have the disadvantage of supplying energy in the furnace body, which is quite asymmetrical -----I-〇Jing Yi Jing Printed by a car-worker's consumer cooperative ^ (诮 read the M first and then note the $ item, then fill out this page) In order to ^ supply the T symmetry in the furnace body, an arc furnace has been developed, one of which is a preheater The feeder system is positioned in the center area of the top. Next, the central feeder is connected via two electrodes so that two arcs with the same power are positioned on both sides of the feed opening of the top feeder. This type of furnace system has a fairly high efficiency, but the two electrodes on both sides of the feeder greatly complicate the technology of the preheater, and its system must then be very high. Because of the minimum distance required between each electrode and the wall of the furnace, this technique also means that the furnace must be very large. Moreover, due to the ^^ & element, this technology greatly limits the use of fossil fuel energy, especially in the form of i in the form of a gas burner ______ 3__ This paper is suitable in size; fl 中 阀 《家 标(RNS) Λ4 specification (210X 297 male dragons) Printed by the Central Government Bureau of the Ministry of Economic Affairs β Industrial Consumer Cooperative Association A7 _ B7___ V. Description of the invention (>) The object of the present invention is to propose a method for preheating The charging smelting equipment does not have the disadvantages described above. Consistent with the non-invention, this goal was achieved by a smelting plant according to item 1 of the scope of patent application. The smelting equipment according to the present invention includes a furnace body having a wall and a furnace roof having edges; at least one electrode capable of being inserted at least partially into the furnace body through an opening on the furnace roof. ; And-the feed preheater, which is in the shape of a well. The preheater is positioned on the top of the furnace, and a feed opening is formed on the top. The preheater includes a first wall that is the farthest from the edge of the top, and a second wall that is the closest to the edge of the top. According to the present invention, the charging preheater is displaced from the edge of the top portion, so that a region for supplying fossil fuel energy is formed in the furnace body and one of the second walls of the preheater enters the furnace body. Between the imaginary extension line and the furnace wall of the furnace body. During the period when iron filings are added to the furnace, the iron filings can spread out on the electrode side below the preheater and on the area side to supply fossil fuel energy, and can form a collapsed slope in the energy supply area. Above this collapsed slope, an area without iron filings is formed in the area of fossil fuel energy supply, where the supply of fossil fuel energy is not hindered by iron filings. Therefore, it is possible to inject a large amount of fossil fuel energy into the area supplying fossil fuel energy from the beginning of the smelting cycle, which greatly reduces the asymmetry of energy supply in the furnace compared to traditional preheaters. "Sex" followed by 'the melting process started at several points of the iron filings at the same time, because the latter ------- ~ --------- on one side is by the electrode or electrodes The generated arc is heated, and in _____4__ This paper size is suitable for China Houjimian (埤, NS) Λ4 size (210X 297 mm) (诮 Read the precautions before filling this page)

經濟部中央橾隼局!3:工消fr合作杜印» A7 ___ ___B7 五、發明説明(勹) 另一側則係藉由礦物燃料能源大量地輸入而被加熱。因此 ’熔融0更迅速且更均勻地進展,其係幫助了鐵屑柱規則 的向下移動。 必須注意的是,除了礦物燃料能源之大量輸入,用以 供應礦物燃料能源之區域係允許了來自熔融過程之高溫氣 體以及煙霧在鐵屑柱周圍一良好的分佈。實際上,從用以 供應礦物燃料能源之區域所釋放之高溫煙霧細分佈在乾淨 區域中具斜面圖錐體上方,並且從$側ϋ預熱器中,其 係引導出在根預熱器中鐵屑柱之一更均勻的預熱。在能源 供應區域係對於在爐身中鐵屑柱的兩側爲開放的情況下, 在該具有斜面圓錐體上方的乾淨區域爲了氣體的均等分佈 而形成了一通道,使得所有來自爐身之煙霧得以均勻地進 入到鐵屑柱整個周長之上。因此,該煙霧均勻地進入預熱 器中整個周長之上,並因此確保了預熱器中鐵屑之均勻預 熱。 在一較佳實施例中,用以供應礦物燃料能源之區域係 大致上對稱於一通過電極或諸電極之中心以及預熱器中心 之垂直平面。在此狀況之下,礦物燃料能源可以對稱地被 供應在相反於電極或諸電極之鐵屑柱之側上方。並且如果 礦物燃料能源之供應係與藉由來自電極或諸電極之電弧所 產生的電力具有相同等級之大小,則全部的能源供應係在 鐵屑柱周長上分布得相當好。此引導出鐵屑柱一有效並均 勻之加熱,並且更幫助了其規則且迅速的向下移動。 在設備之一有利實施例中,從通過電極或諸電極之中 _______5___ ^紙张尺度適/丨1中阈®家標岑((’NS ) Λ4现格(210X 297公釐) («先閲讀背而之注意事項再填寫本頁) oi 訂 經滴部中央標準扃员工消费合作社印si 五、發明説明(斗) 心以及預熱器中心之垂直平面所視,該礦物燃料能源供應 區域之P寸係大於或者是等於以相同方向所視在進料開口 高度處預熱器尺寸之四分之一。用以供應該礦物燃料能 源之區域的此等尺寸似乎是適合於在鐵屑柱具有斜面圓錐 體上方形成一乾淨區域,其中該鐵屑柱在該爐身壁之高度 處係爲在用以供應該礦物燃料能源之區域高度的大部分延 伸者。 用以供應該礦物燃料能源之裝置較好是座落在用以供 應該礦物燃料能源之區域,其整個動力係爲可以調整者, 以便與藉由電極或諸電極所產生電力之大小具有同之等級 。這些用以供應該礦物燃料能源之裝置係包括例如有氣體 燃燒器、及/或煤氣與氧氣燒槍、及/或後燃燒氣體噴槍 或噴嘴、及/或組合了氣體燃燒器與氧氣燒槍之功能的噴 射器。必須注意的是,後燃燒氣體可以是空氣或是氧氣。 在氣體燃燒器的狀況下,這些氣體燃燒器較好是定位 在爐身壁中一假想線上方,該假想線係形成了該爐身壁§1 一在爐子加料期間藉由固體金屬生成物所形成之一垂直的 具有斜坡圖錐體的交叉點。接著,該氣體燃燒器從過程〜 開始就不會有妨礙地作用,因此可以從開始時就產生最$ 的動力。該氣體燃燒器較好是稍爲指向下方,以便使得具 斜面圈錐體之底部(亦即在礦物燃料能源供應之區域底部 而與爐身壁相接觸之鐵屑柱)的迅速熔解。 一旦鐵屑的此一部份熔解時,亦即當乾淨區域延伸遠 至壁之底部時,定位在爐身壁底部之後燃燒煤氣與氧氣噴 ____6___ 本紙悵尺度通川中國囤象標卒((’NS ) Λ4現格(210X 297公f ) ^ (誚先閱婧背而之注意事項再填寫本頁) α 、1Τ 經濟部中央樣率扃Η工消费合作社印^.Central Bureau of Economic Affairs! 3: Industrial and consumer fr cooperation Du Yin »A7 ___ ___B7 V. Description of the invention (勹) The other side is heated by a large amount of fossil fuel energy input. Therefore, the 'melting 0' progresses more quickly and more uniformly, which helps the iron chip column to move down regularly. It must be noted that in addition to the large input of fossil fuel energy, the area used to supply fossil fuel energy allows a high temperature gas and smoke from the melting process to be well distributed around the iron filings. In fact, the high-temperature smoke released from the area used to supply fossil fuel energy is finely distributed above the beveled cone in the clean area, and from the side preheater, it is led out of the root preheater One of the iron filings preheats more evenly. In the case where the energy supply area is open to both sides of the iron filings in the furnace body, a clean area above the cone with a beveled surface forms a passage for the equal distribution of gas, so that all the smoke from the furnace body It is evenly distributed over the entire circumference of the iron filings. Therefore, the smoke evenly enters the entire perimeter of the preheater, and thus ensures uniform preheating of iron filings in the preheater. In a preferred embodiment, the area for supplying fossil fuel energy is substantially symmetrical to a vertical plane passing through the center of the electrode or electrodes and the center of the preheater. In this case, fossil fuel energy can be supplied symmetrically above the side of the iron filings opposite the electrodes or the electrodes. And if the supply of fossil fuel energy is of the same level as the electricity generated by the arc from the electrodes or the electrodes, then the entire energy supply is fairly well distributed on the perimeter of the iron filings. This leads to an effective and uniform heating of the iron filings, and it helps its regular and rapid downward movement. In one advantageous embodiment of the device, from the passing electrode or among the electrodes _______5___ ^ Paper size is suitable / 丨 1Middle Threshold® House Standard Cen (('NS) Λ 4 grid (210X 297 mm) («first Read the precautions on the back and fill in this page) oi Book the central standard of the Ministry of Labor 印 Institute of Consumer Cooperatives 五 5. Description of the invention (bucket) and the vertical plane of the preheater center P inches are greater than or equal to one quarter of the size of the preheater at the height of the feed opening viewed in the same direction. These sizes of the area used to supply the fossil fuel energy appear to be suitable for A clean area is formed above the bevel cone, wherein the iron chip column is the most extension of the height of the area for supplying the fossil fuel energy source at the height of the furnace wall. The device for supplying the fossil fuel energy source It is preferably located in the area used to supply the fossil fuel energy source, and its entire power system can be adjusted so as to have the same level as the amount of electricity generated by the electrodes or the electrodes. The fossil fuel energy device includes, for example, a gas burner, and / or a gas and oxygen burner, and / or a post-burning gas spray gun or nozzle, and / or an injector combining the functions of a gas burner and an oxygen burner. It must be noted that the post-combustion gas can be air or oxygen. In the case of gas burners, these gas burners are preferably positioned above an imaginary line in the furnace wall, which imaginary line forms the furnace Body wall §1 A vertical intersection with a sloped cone formed by solid metal products during furnace charging. Then, the gas burner does not interfere in an obstructive way from the process ~, so it can Generates the most power from the beginning. The gas burner is preferably pointed slightly downwards so that the bottom of the cone with the beveled ring (that is, the bottom of the area where the fossil fuel energy is supplied comes into contact with the furnace wall). Iron chip column) quickly melts. Once this part of iron chip melts, that is, when the clean area extends far to the bottom of the wall, it is burned with gas and oxygen after being positioned at the bottom of the furnace wall. Air Spray ____6___ This paper is printed on the standard Tongchuan China Stock Market (('NS) Λ4 is present (210X 297 male f)) ^ (诮 Please read the precautions of Jing Jing before filling out this page) α, 1Τ Central Ministry of Economic Affairs Sample rate consumer labor cooperatives ^.

AT ______________ ‘ 丨_B7 _ 五、發明説明(今"5 " 槍或噴嘴或組合了氣體燃燒器與氧氣燒槍之功能的噴射器 ’其係_好是開始運轉。使用這些噴槍係使得將煤氣與氧 氣直接噴入一形成於爐身中之後部成爲可能,因此釋放了 大量的礦物燃料能源。朝著循環之末端,煤氣之噴射係被 停止’並且噴槍係藉由氧氣之注入而被用以使得金靥熔體 脫碳。 在噴射器組合了氣體燃燒器與氧氣燒槍之功能的狀況 下’爲了淸潔座落在該噴射器前方的鐵屑,該噴射器係從 循環一開始時就開始作爲一燃燒器而運作。一旦清潔區域 以此種方法而在該噴射器前方產生,後者係當作一氧氣燒 槍而運作,用以將氧氣噴入後部。以此種方法,使氧氣之 噴射在熔煉循環中相當早而開始作用係成爲可能,因此開 始了金屬熔體的脫碳,其係相當地降低了兩鏤造間的時間 Ο 爲了使得經由過程中所釋放之煙霧中所包含的能源能 夠有最大的使用,後燃燒氣體(例如空氣或是氧氣)較好 是藉由定位在爐身壁頂部之後燃燒氣體噴槍或噴嘴的機構 所噴出。 必須注意的是,用以供應礦物燃料能源之附加裝置係 可以被定位在礦物燃料能源供應區域中之爐頂上。 繼續被補充的是根據本發明之設備係適合於加入10 0%之鐵屑,就像是其係適合於加入一高比率的預還原生 成物或是熔融生鐵。在加入熔融生鐵的情況下,後者較好 是被裝載於礦物燃料能源供應區域中。實際上,因爲礦物 _________7_ 本紙浪尺度迪川中阈阀家標哨(rNsTA4坭格(2丨0X 297公釐) (誚先閲讀背面之注意事項再填寫本頁) n . ,tr Α7 Β7 五、發明説明((?) 燃料能源供應係非常接近爐壁,此區域係迅速地淸除鐵屑 ’並且P以將熔融生鐵裝載於爐身中的通道被阻塞的危險 係大大地降低了。再者,因爲生鐵中的碳,隨著礦物燃料 能源藉由此一路徑而大量的供應,能源供應區域迅速的淸 潔係使得熔融生鐵之加入開始得非常早。 因此,根據本發明之熔煉設備較好係包括有一通道, 其係用於定位在礦物燃料能源供應區域中爐身底部,並且 朝向外部而延伸之生鐵,該通道係用以將熔融生鐵裝載於 爐身之中。 本發明其他特殊之特點及特徵將從下文中所提供作爲 說明示例之數個有利實施例的詳細敘述,並參照伴隨之圖 示而浮現出來。該圖示爲: 第一圖係爲熔煉設備之第一實施例的垂直截面圖,其 中該熔煉設備係具有一供應礦物燃料能源之區域; 第二圖係爲根據第一圖中熔煉設備之平面圖; 第三圖係爲一組視圖,其說明了第一圖中熔煉設備之 熔煉過程; 經漪部中央榡準局員工消舟合作社印製 (对先閲讀背面之注意事項再填寫本頁) 第四圖係爲熔煉設備之第二實施例的垂直截面圖,其 中該熔煉設備係具有一供應礦物燃料能源之區域。 第一圖爲一具有供應礦物燃料能源的區域之熔煉設備 的垂直截面圖,而第二圖則係爲—顯示了此設備之平面圖 。該設備1 0係包括有一爐身1 4,而該爐身1 4則係由 一藉由耐火材料所製成之爐床16以及冷卻板之一爐壁1 8 本紙張尺度適川中阀《家標卒((,NS ) Λ4規格(2丨0X 297公梦-)AT ______________ '丨 _B7 _ 5. Description of the invention (today " 5 " gun or nozzle or injector combining the function of a gas burner and an oxygen burner' is _ it ’s good to start running. Using these spray gun systems makes It is possible to inject gas and oxygen directly into the rear of the furnace body, thus releasing a large amount of fossil fuel energy. Towards the end of the cycle, the gas injection system is stopped 'and the spray gun is injected by the injection of oxygen. In order to decarburize the gold tin melt. In the condition that the ejector combines the functions of a gas burner and an oxygen burner, 'in order to clean the iron filings located in front of the ejector, the ejector is started from the beginning of the cycle It starts to operate as a burner. Once the cleaning area is generated in front of the injector in this way, the latter operates as an oxygen burner to inject oxygen into the rear. In this way, the The injection of oxygen became possible early in the smelting cycle and the action system became possible. Therefore, the decarburization of the metal melt was started, which considerably reduced the time between the two processes. The energy contained in the smoke released during the process can be used to the maximum. The post-combustion gas (such as air or oxygen) is preferably emitted by the mechanism of the combustion gas spray gun or nozzle positioned on the top of the furnace wall. It must be noted that additional devices for the supply of fossil fuel energy can be positioned on the roof of the furnace in the area of fossil fuel energy supply. It is further added that the device according to the invention is suitable for adding 100% iron filings, It's like it is suitable for adding a high ratio of pre-reduced products or molten pig iron. In the case of adding molten pig iron, the latter is preferably loaded in the fossil fuel energy supply area. In fact, because of the mineral _________7_ This paper is a standard whistle for Dichuan Middle Threshold Valve (rNsTA4 坭 Grid (2 丨 0X 297mm) (诮 Please read the precautions on the back before filling in this page) n., Tr Α7 Β7 V. Invention Description ((?) Fuel The energy supply system is very close to the furnace wall. This area quickly removes iron filings and the danger of P being blocked by the passage of molten pig iron in the furnace is greatly reduced. Moreover, because the carbon in pig iron is supplied in large quantities along this route, the rapid cleanliness of the energy supply area makes the addition of molten pig iron very early. Therefore, according to the invention, The smelting equipment preferably includes a channel for pig iron that is positioned at the bottom of the furnace body in the fossil fuel energy supply area and extends outward, and the channel is used to load molten pig iron into the furnace body. Other special features and characteristics will be described in detail from several advantageous embodiments provided as examples below, and will emerge with reference to the accompanying diagram. The diagram is: The first diagram is the first of the melting equipment A vertical sectional view of the embodiment, wherein the smelting equipment has a region for supplying fossil fuel energy; the second diagram is a plan view of the melting equipment according to the first diagram; the third diagram is a set of views illustrating the first The smelting process of the melting equipment in the picture; printed by the Xiaozhou Cooperative of the Central Procurement Bureau of the Ministry of Yi (please read the precautions on the back before filling this page) FIG four lines is a vertical sectional view of a second embodiment of the melting apparatus, wherein the melting apparatus system having a region of the fossil fuel energy supplied. The first picture is a vertical cross-sectional view of a smelting plant with an area supplying fossil fuel energy, while the second picture is a plan view showing the plant. The 10 series of the equipment includes a furnace body 14 which is made of a hearth 16 made of refractory material and one of the cooling plates. The paper size is Standard Pawn ((, NS) Λ4 specifications (2 丨 0X 297 public dream-)

五、發明説明() 經濟部智慧財產局8工消費合作社印软 8所構成。在頂部,該爐身1 4係藉由一頂部2 0所關閉 ,該頂部20上係具有一個或是多個開口22,用以使一 個或是多個電極2 4插入該爐身1 4中^ 該設備1 〇係包括有一加料預熱器2 6,其係爲一井 之形狀,而鐵屑則可以經由該加料預熱器2 6而加入該爐 身中。該預熱器2 6係被定位在頂部2 〇上,並且係形成 有一進料開口。爲了允許其可以中斷地加料,其係可以設 有指狀部用以保持該鐵屑,或者其可以爲了連續加料而被 設計。當該設備運轉時’在該爐身1 4中熔煉過程期間所 釋放出之熱煙,係經由該預熱器2 6而排出,並且預熱了 出現在該預熱器2 6中之鐵屑程。 該預熱器2 6係包括有一第一壁3 0,其係爲距離該 頂部2 0之邊緣最遠者,以及一第二壁3 2,其係爲最接 近該頂部2 0之邊緣者。其係以一種對於該頂部之邊緣位 移之方式而被定位在該頂部2 0上。因此,一用以供應礦 物燃料能源之區域3 4係形成在該爐身1 4中介於該預熱 器2 6之第二壁i2進入該爐身4中之一假想延伸線3 6與該爐身之爐壁1 8之間處。該能源供應區3i較好是 相反於電極而座ί,並且對稱於穿過有該電極之爐子的對 稱平面以及預熱器之中心。 在將鐵屑加入爐子中的期間,鐵屑柱2 8可以在該預 熱器2 6下方之電極2 4側及用以供物燃料能源之區 域3 4側散開,並且可以在能源供應區域3 4中形成一個 有斜坡之圓錐體3 8。在此具有斜坡之圓錐體上方, (請先聞讀背面之注f項再填寫本頁) 本紙張尺度逋用中國國家梯準(CNS ) A4礼格7 210X2^公釐) 經漪部中央榡Σ?-^β工消贽合作社印纪 A7 B7 五、發明説明(ί) 該能源供應區域3 4是沒有任何鐵屑的。因此,從熔煉循 環開始時,將大量的礦物燃料能源注入供應礦物燃料能源 之區域$ 4中是有可能的,其與傳統預熱器相較下係大大 地降低了出現在爐中能源供應之不對稱性。再者,在有斜 坡圔錐體3 8上方之乾淨區域係形成了一個用於氣體均等 分配之通道,其係使得所有來自該爐身1 4的煙霧得以均 勻地進入而在鐵屑柱2 8之周長上方。所以,該煙霧均勻 地進入到該預熱器2 6中的整個周長,並從而確保了在該 預熱器2 6中的鐵屑係爲均勻地預熱者。 爲了能夠注入該礦物燃料能源,用於供應該礦物燃料 能源(以箭頭4 0所表示者)之裝置係被放置在該爐壁1 8之區域3 4。這些裝置4 0可以包括有例如是氣體燃燒 器、煤氣與氧氣燒槍、後燃燒氣體噴射器等等。爲了確保 能源有效率地傳送至鐵屑,用於供應該礦物燃料能源之裝 置4 0較好是分布在該能源供寧、區域3 4之整個壁的上方 〇 用於供應該礦物燃料能源之裝置4 0全部的動力係爲 有利地均等於電力。在此狀況下,全部的能源供應在該鐵 屑柱之整個周長上方是分佈地相當好的,其係導致該鐵屑 柱一有效率並且均句地加熱,並且幫助了其規則地向下移 動。 該能源供應區域3 4之寬度L (亦即在對稱於爐子平 面之方向上的尺寸)係大於或者等於該預熱器2 6在進料 開口高度處之尺寸(在相同之方向上所視)的四分之一。 10 本紙張尺度诚川屮W W ( (’NS ) AWt格(21 OX 297公难) (邻先閱讀背而之注意事項再填寫本頁) ,ιτ 声1 /1^ 經承-部屮央標準局货工消贽合作社印¥'. A 7 ________B7 _ 五、發明説明(3) 用於供應該礦物燃料能源之區域的此等尺寸對於一乾淨區 域之形成是有需要的,其中該乾淨區域係在爐身壁之高度 處在用私供應該礦物燃料能源之區域的高度的一大部分上 延伸。 繼續被補充的是設備1 0係適合於加入1 0 0%之鐵 屑,就像是其係適合於加入一高比率的預還原生成物或是 熔融生鐵。在加入熔融生鐵的情況下,後者較好是被裝載 於用以供應礦物燃料能源的區域3 4中。在此狀況下,一 生鐵通道4 2係被定位在爐身之底部用以供應礦物燃料能 源的區域中,其係延伸至外部。 第三圖係顯示了熔煉設備之第二實施例。在此形式下 ,用以供應能源之區域3 4並沒有在爐身的整個高度上延 伸,而僅在爐身的部分高度上延伸。如同第一圖中之實施 例,一乾淨區域係形成在具斜面之圓錐體上方,其中從熔 煉循環開始礦物燃料能源大量輸入該具斜面之圓錐體中係 成爲可能。必須注意的是,此實施例係相當適合於轉換現 有之電爐。實際上,用以供應能源之區域3 4可以藉由將 一周圍通道安裝在現有爐子井頂而形成,而不是修正及替 換現有的預熱器。 現在將藉由第四圖之幫助來加以簡單說明藉由裝載成 三批1 00 %鐵屑所加入之熔融循環。 在將第一批鐵屑裝載於爐身1 4中之後,第二批係硿 由預熱器2 8而裝載。以此法所獲得之鐵屑柱在該預熱器 2 8下方散開,並且形成一圓錐形堆。因爲能源供應區域 11 糸紙浓尺度蝻川屮本標今((NS ) Λ4^ ( 210X 297^·$.) (誚先閱讀背而之注意事項再填寫本頁) ,ιτ 蜱- 經濟部中央標準历只工消炝合作杜印犮 Α7 Β7 五、發明説明(/t7) 3 4,此圓錐形堆可以在該鐵屑柱的整個周長上自由地形 成。在能源供應區域3 4的頂部,一乾淨區域從而形成在·V. Description of the invention () Consisting of 8 Industrial and Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. At the top, the furnace body 14 is closed by a top 20, and the top 20 is provided with one or more openings 22 for inserting one or more electrodes 24 into the furnace body 14. ^ The system 10 includes a feed preheater 26, which is in the shape of a well, and iron filings can be added to the furnace body through the feed preheater 26. The preheater 26 is positioned on the top 20 and is formed with a feed opening. To allow it to be interrupted to feed, it may be provided with fingers to hold the iron filings, or it may be designed for continuous feeding. When the equipment is in operation, the hot smoke released during the smelting process in the furnace body 14 is discharged through the preheater 26, and the iron chips appearing in the preheater 26 are preheated. Cheng. The preheater 26 includes a first wall 30, which is the farthest from the edge of the top 20, and a second wall 32, which is the closest to the edge of the top 20. It is positioned on the top 20 in such a way as to shift the edge of the top. Therefore, an area 3 4 for supplying fossil fuel energy is formed in the furnace body 1 4 and a second wall i2 of the preheater 26 enters the furnace body 4 into an imaginary extension line 36 and the furnace. Body of the furnace wall between 18. The energy supply area 3i is preferably opposite to the electrode and symmetrical to the symmetrical plane passing through the furnace with the electrode and the center of the preheater. During the period when iron filings are added to the furnace, iron filing columns 28 can spread out on the electrode 2 4 side below the preheater 2 6 and on the area 3 4 side for fuel energy, and can be in the energy supply area 3 4 In the formation of a sloped cone 38. Above the cone with a slope, (please read the note f on the back before filling in this page) This paper size uses the Chinese National Standard (CNS) A4 Lige 7 210X2 ^ mm) Σ?-^ ΒIndustrial Cooperative Cooperatives Indy A7 B7 V. Description of Invention (ί) The energy supply area 34 is free of any iron filings. Therefore, from the beginning of the smelting cycle, it is possible to inject a large amount of fossil fuel energy into the $ 4 supply area of fossil fuel energy, which greatly reduces the energy supply in the furnace compared to traditional preheaters. Asymmetry. Furthermore, a clean area above the sloped cone 38 forms a passage for the equal distribution of gas, which allows all the smoke from the furnace body 14 to enter uniformly and at the iron filings 2 8 Above the perimeter. Therefore, the smoke uniformly enters the entire circumference of the preheater 26, and thereby ensures that the iron filings in the preheater 26 are uniformly preheated. In order to be able to inject the fossil fuel energy, a device for supplying the fossil fuel energy (indicated by arrow 40) is placed in the area 34 of the furnace wall 18. These devices 40 may include, for example, a gas burner, a gas and oxygen burner, a post-combustion gas injector, and the like. In order to ensure the efficient transmission of energy to the iron filings, the device 40 for supplying the fossil fuel energy is preferably distributed over the entire wall of the energy supply, area 34. The device for supplying the fossil fuel energy All 40 powertrains are advantageously equal to electricity. Under this condition, the entire energy supply is fairly well distributed over the entire perimeter of the iron chip column, which causes the iron chip column to heat up efficiently and uniformly, and helps it to go down regularly mobile. The width L of the energy supply area 34 (that is, the dimension in a direction symmetrical to the furnace plane) is greater than or equal to the size of the preheater 26 at the height of the feed opening (viewed in the same direction) Quarter. 10 Paper size Chengchuan WW (('NS) AWt grid (21 OX 297 public difficulty) (Read the precautions before filling in this page), ιτ sound 1/1 ^ Jing Cheng-Ministry of Central Standards Printed by the Bureau of Consumer Goods Cooperatives ¥ '. A 7 ________B7 _ V. Description of the Invention (3) These dimensions of the area for supplying the fossil fuel energy are necessary for the formation of a clean area, where the clean area is At the height of the furnace wall, it extends over a large part of the height of the area where the fossil fuel energy is privately supplied. What continues to be added is that the device 10 is suitable for adding 100% iron filings, just like its It is suitable for adding a high ratio of pre-reduced products or molten pig iron. In the case of adding molten pig iron, the latter is preferably loaded in the area 34 for supplying fossil fuel energy. In this condition, a lifetime The iron channel 42 is located in the area at the bottom of the furnace body for supplying fossil fuel energy, and it extends to the outside. The third figure shows a second embodiment of the melting equipment. In this form, it is used to supply Energy Zone 3 4 is not in the entire furnace body It extends over a degree, but only over a part of the height of the furnace body. As in the example in the first figure, a clean area is formed above the cone with a bevel, where a large amount of fossil fuel energy is input into the bevel from the melting cycle. The cone system becomes possible. It must be noted that this embodiment is quite suitable for converting existing electric furnaces. In fact, the area 34 for supplying energy can be installed by installing a surrounding channel on the top of the existing furnace well. Forming instead of modifying and replacing the existing preheater. The melting cycle added by loading three batches of 100% iron filings will now be briefly explained with the help of the fourth figure. In the first batch of iron filings After being loaded in the furnace body 14, the second batch of tethers is loaded by the preheater 28. The iron filings obtained in this way are scattered under the preheater 28 and form a conical stack. Because Energy supply area 11 糸 Paper thick scale 蝻 川 屮 本本 ((NS) Λ4 ^ (210X 297 ^ · $.) (诮 Please read the precautions before filling this page), ιτ tick-central standard of the Ministry of Economic Affairs Co-operation and Du Yin Α7 Β7 V. Description of the invention (/ t7) 3 4, This cone-shaped stack can be formed freely over the entire perimeter of the iron chip column. On the top of the energy supply area 34, a clean area is formed at ·

I 該具斜面之圓錐體的上方,亦即該鐵屑並未與該爐身壁相 接觸之區域。因此,在此區域中,藉由座落在爐身壁用以 供應礦物燃料能源之裝置的機構,而立即注入大量礦物燃 料能源係成爲可能。 在第二批鐵屑被裝載之後,電極2 4係因此被插入, 而電弧及礦物燃料能源之供應係同時開始《•礦物燃料能源 係使用安裝在爐身壁鐵屑高度上方之氣體燃燒器而被供應 (如第四A圖所示)。該氣體燃燒器整個動力較好是具有 與電力相同等級之大小。 該氣體燃燒器迅速地將發生在能量供應區域之底部的 鐵屑淸除乾淨。接著,煤氣與氧氣係使用安裝在爐身壁之 底部的噴槍或是噴射器而被注入後部。同時,後燃燒氣體 係使用安裝在能源供應區域壁之上部的噴嘴或是噴槍而被 注入能源供應區域之頂部(如第四B圖所示)。 一旦該鐵屑柱充足地向下移動以允許裝載第三批鐵屑 ,煤氣與氧氣噴射器則被停止,並且第三批係被裝載。在 這個期間,氣體燃燒器可以正常地作用(如第四C圖所示 )° ' 當在能源供應區域底部之鐵屑再一次地被淸除時,該 循環係藉由煤氣與氧氣之噴射,並且藉由後燃燒氣體之噴 射而重新開始。因此,該燃燒器及煤氣與氧氣燒槍平行地 運作,直到鐵屑柱相當地降低了爲止。接著,氣體燃燒器 12 (請先閱讀背而之注意事項再填寫本頁)I Above the beveled cone, that is, the area where the iron filings do not contact the furnace wall. Therefore, in this area, it is possible to immediately inject a large amount of fossil fuel energy system by means of a device located on the wall of the furnace body for supplying fossil fuel energy. After the second batch of iron filings were loaded, the electrodes 24 were inserted, and the supply of electric arc and fossil fuel energy began at the same time. "The fossil fuel energy system uses a gas burner installed above the height of the iron filings on the furnace wall. Is supplied (as shown in the fourth A picture). The entire power of the gas burner is preferably the same as that of the electric power. The gas burner quickly removes iron filings that occur at the bottom of the energy supply area. Next, gas and oxygen are injected into the rear using a spray gun or ejector mounted on the bottom of the furnace wall. At the same time, the post-combustion gas is injected into the top of the energy supply area using a nozzle or spray gun installed above the wall of the energy supply area (as shown in Figure 4B). Once the iron filings were sufficiently moved down to allow the third batch of iron filings to be loaded, the gas and oxygen injectors were stopped and the third batch was loaded. During this period, the gas burner can function normally (as shown in Figure 4C) ° 'When the iron filings at the bottom of the energy supply area are once again eliminated, the cycle is sprayed with gas and oxygen, And restarted by the injection of post-combustion gas. Therefore, the burner and the gas are operated in parallel with the oxygen burner until the iron filings are considerably lowered. Next, the gas burner 12 (Please read the precautions before filling out this page)

本紙張尺度適川十阀内孓打:呤((*NS ) Μ現格(210X297公釐) A7 A7 經濟部智慧財產局員工消费合作社印製 B7 五、發明說明() 係被關上,並且只有煤氣與氧氣以及後燃燒空氣之噴射係 爲繼續者。必須注意的是’在此階段,該燃燒器可以被使 用以注入後燃燒空氣。而此係顯示在第四D圖中。 朝向熔融循環之末端’在所有的鐵屑均被熔融之後’ 煤氣以及後燃燒空氣之噴射亦被停止。在此階段’爲了使 金屬熔體脫碳並降低其中之碳濃度,氧氣之噴射係被繼續 者(如第四E圖所示2。 圖式主 10 熔煉設備 .1 4 爐身 1 6 爐床 18 爐壁 v 2 0 爐頂 、-- -ΙΓ - ---- 2 2 mn '24 -極 v2 6 預熱器 —_______ J2 8 鐵屑柱 C3 0 預熱器之第一_ —— —-—-~~ — ——· -3 2 預熱器之第二壁 3 4 供應礦物燃料能源之區域 v \ 3 6 第二壁3 2進入爐身1 4的假想蔡伸線 ^ 3 8 有斜坡之圓錐體 ~一 40 供應礦物燃料能源之裝置 4 2 笔ϋ通道 本紙張尺度適用中园國豕標準(CNS)A4規格(210 X 297公釐) II--— — — — — — — 裝-I--I I— I ^ --------- (靖先閱讀背面之注意事項再填寫本頁)The size of this paper is within the ten valves of Sichuan: Bronze ((* NS) M is now (210X297 mm) A7 A7 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs B7 V. The description of the invention () is closed and only The gas and oxygen and post-combustion air injection system is a continuation. It must be noted that 'at this stage, the burner can be used to inject post-combustion air. This system is shown in Figure D. Towards the melting cycle At the end, after all iron filings have been melted, the injection of gas and post-combustion air is also stopped. At this stage, in order to decarbonize the metal melt and reduce its carbon concentration, the injection of oxygen is continued (such as The fourth E is shown in Figure 2. Schematic main 10 Melting equipment. 1 4 Furnace body 1 6 Furnace bed 18 Furnace wall v 2 0 Furnace roof,--IΓ----- 2 2 mn '24 -pole v2 6 Preheater — _______ J2 8 Iron chip column C3 0 The first of the preheater _ — — — — — — — — — 3 2 The second wall of the preheater 3 4 The area that supplies fossil fuel energy v \ 3 6 Second wall 3 2 Imaginary Cai extension line entering the furnace body 1 4 ^ 3 8 cone with slope ~ one 40 supply Equipment for fossil fuel energy 4 2 pen channels The paper size is applicable to the China National Standard (CNS) A4 specification (210 X 297 mm) II --- — — — — — — — -I--II— I ^ --------- (Jing first read the notes on the back before filling out this page)

Claims (1)

384380 '申請專利範圍 ϋ -^1 - ϋ ϋ n - —.1 n !— n 1 订 (請先《讀背面之注$項再4寫本頁) 1 '一種熔煉設備,其係具有一爐身,該爐身包括有 一壁以及一具有邊緣之爐頂;至少一電極,其係能夠經由 爐頂上之開口而至少局部地插入該爐身中;以及一加料預 熱器’其係爲一井之形狀,該預熱器係被定位在爐頂上, 並且在該頂部上係形成有一進料開口,該預熱器包括有一 第一壁,其係爲距離該頂部之邊緣最遠者,以及一第二壁 ’其係爲最接近該頂部之邊緣者,該熔煉設備之特徵在於 該加料預熱器係從該頂部之邊緣位移,以致一用以供 應礦物燃料能源之區域係形成在該爐身中介於該預熱器之 第二壁進入該爐身中之一假想延伸線與該爐身之爐壁之間 處。 2、 根據申請專利範圍第1項所述之熔煉設備,其特 徵在於:該礦物燃料能源供應區域係大致上對稱於一通過 電極或諸電極之中心以及預熱器中心之垂直平面。 經濟部智慧財/i局員工消費合作社印製 1" 3、 根據申請專利範圍第1項所述之熔煉設備,其特 徵在於:從通過電極或諸電極之中心以及預熱器中心之垂 直平面所視,該礦物燃料能源供應區域之尺寸係大於或者 是等於以相同方向所視在進料開口高度處該預熱器尺寸之 四分之一。 4、 根據申請專利範圍第1項至第3項中任一項所述 之熔煉設備,其特徵在於:一種座落在礦物燃料能源供應 區域中用於供應礦物燃料能源之裝置’其全部的動力係爲 可調整者,以便與藉由電極或是諸電極所產生之電力具有 本紙張尺度適用中國國家揲率(CNS ) A4規格(2丨OX297公羡) S8<i38〇 六、申請專利範圍 相同等級之大小。 5、 根據申請專利範圍第4項所述之熔煉設備,其特 徵在於:用於供應礦物燃料能源之該裝置係包括有氣體燃 燒器、及/或煤氣與氧氣燒槍、及/或後燃燒氣體噴槍或 噴嘴'及/或組合了氣體燃燒器與氧氣燒槍之功能的噴射 器。 6、 根據申請專利範圍第5項所述之熔煉設備,其特 徵在於:該氣體燃燒器係定位在爐身壁中一假想線上方, 該假想線係形成了該爐身壁與一在爐子加料期間藉由固體 金屬生成物所形成之一垂直的具有斜坡圓錐體的交叉點。 7、 根據申請專利範圍第5項所述之熔煉設備,其特 徵在於:該煤氣與氧氣燒槍係定位在該爐身壁之底部。 8、 根據申請專利範圍第5項所述之熔煉設備,其特 徵在於:該後燃燒氣體噴槍或噴嘴係定位在該爐身壁之頂 部。 • 9、根據申請專利範圍第6項所述之熔煉設備’其特 徵在於:一種定位在礦物燃料能源供應區域中爐頂之用於 供應礦物燃料能源之附加裝置。 1 0、根據申請專利範圍第1項至第3項中任一項所 述之熔煉設備,其特徵在於:該電極係從該爐身之中央位 移,其特徵並且在於:機構被設置以使得電弧從電極朝向 該爐身之中央偏斜。 11、根據申請專利範圍第1項至第3項中任一項所 述之熔煉設備,其特徼在於:一種定位在礦物燃料能源供 _______2—___-— -- 本紙張尺度逋用中國國家樣丰(CNS ) A4現格(210X297公釐) (請先《讀背面之注$項再填寫本I α. 經濟部智慧財產局炅工消費合作杜印製 d 8 3 8 G cS ___ _ D8 ____ 六、申請專利範困 應區域中爐身底部用於生鐵,並且朝向外部而延伸之通道 ’該通道係裝載熔融生鐵而進入該爐身中。 12、 根據申請惠利範園第7項所沭之熔煉設備,其 &徵在於」一種定位在確物燃料能源供應區域中爐頂之用 於供應確物燃料能源夕附加奘置〇 13、 根據申請專利範圍第8項所沭之熔煉設備,其 特徵在於:一枰宇户产確物燃料能源供應區域中爐頂之用 趁供應礦物燃料能源之附加裝置。 ----QI — (請先閱讀背面之注項再*寫本頁) 訂. 經濟部智慧財產局ίΚ工消費合作社印製 张 本 固 a 中 用 逋 Μ \/ NS C |釐 $ 9 2 X ο384380 'Scope of patent application ϋ-^ 1-ϋ ϋ n-—.1 n! — N 1 order (please first read the note on the back and then write this page) 1' a melting equipment, which has a furnace The furnace body includes a wall and a furnace roof with edges; at least one electrode that can be inserted into the furnace body at least partially through an opening in the furnace roof; and a charging preheater 'which is a well In the shape, the preheater is positioned on the top of the furnace, and a feed opening is formed on the top. The preheater includes a first wall that is the furthest from the edge of the top, and a The second wall is the one closest to the edge of the top. The melting equipment is characterized in that the feed preheater is displaced from the edge of the top so that a zone for supplying fossil fuel energy is formed in the furnace The second wall between the preheater enters between the imaginary extension line of the furnace body and the furnace wall of the furnace body. 2. The smelting equipment according to item 1 of the scope of the patent application, characterized in that the fossil fuel energy supply area is roughly symmetrical to a vertical plane passing through the center of the electrode or electrodes and the center of the preheater. Printed by the Intellectual Property Cooperative of the Ministry of Economic Affairs / I Bureau Consumer Cooperative 1 " 3. The smelting equipment according to item 1 of the scope of the patent application, which is characterized by the vertical plane through the center of the electrode or electrodes and the center of the preheater. In view of this, the size of the fossil fuel energy supply area is greater than or equal to a quarter of the size of the preheater at the height of the feed opening viewed in the same direction. 4. The smelting equipment according to any one of items 1 to 3 of the scope of the patent application, characterized in that: a device for supplying fossil fuel energy is located in the fossil fuel energy supply area, and its full power It is adjustable so that the electricity produced by the electrodes or electrodes has the paper size applicable to the Chinese National Standard (CNS) A4 specification (2 丨 OX297 public envy) S8 < i38〇6. The scope of patent application is the same The size of the level. 5. The smelting equipment according to item 4 of the scope of the patent application, characterized in that the device for supplying fossil fuel energy includes a gas burner, and / or a gas and oxygen burner, and / or a post-combustion gas A spray gun or nozzle 'and / or an injector combining the functions of a gas burner and an oxygen burner. 6. The smelting equipment according to item 5 of the scope of the patent application, characterized in that the gas burner is positioned above an imaginary line in the wall of the furnace body, and the imaginary line system forms the wall of the furnace body and a feed in the furnace. A vertical intersection with a sloped cone formed by solid metal products. 7. The smelting equipment according to item 5 of the scope of the patent application, characterized in that the gas and oxygen burner is positioned at the bottom of the wall of the furnace body. 8. The smelting equipment according to item 5 of the scope of the patent application, characterized in that the post-combustion gas spray gun or nozzle is positioned on the top of the wall of the furnace body. • 9. The smelting equipment according to item 6 of the scope of the patent application is characterized by an additional device for supplying fossil fuel energy positioned at the top of the furnace in the fossil fuel energy supply area. 10. The smelting equipment according to any one of items 1 to 3 in the scope of the patent application, characterized in that the electrode is displaced from the center of the furnace body, and characterized in that the mechanism is arranged to make an arc Inclined from the electrode towards the center of the furnace. 11. The smelting equipment according to any one of items 1 to 3 of the scope of the patent application, which is characterized in that: a type of fossil fuel energy supply _______2 — ___ — — This paper standard uses the Chinese country Sample Feng (CNS) A4 (210X297 mm) (please read the "$" on the reverse side before filling in this I α. Printed by the labor and consumer cooperation of the Intellectual Property Bureau of the Ministry of Economic Affairs d 8 3 8 G cS ___ _ D8 ____ VI. The channel in the bottom of the application scope for the patent application is used for pig iron and extends to the outside. 'This channel is loaded with molten pig iron and enters the furnace. 12. According to the application 7 of Huili Fanyuan, The smelting equipment is characterized by "a smelting equipment for the supply of physical fuel energy, which is positioned on the top of the furnace in the physical fuel energy supply area. According to item 8 of the scope of patent application, It is characterized by: an additional device for the supply of fossil fuel energy while the furnace roof is used in the real fuel energy supply area of Udo. QI — (Please read the note on the back before writing this page) Order . Intellectual Property Bureau, Ministry of Economic Affairs Consumer cooperatives of prints with this in a solid Bu Μ \ / NS C | cm $ 9 2 X ο
TW087120046A 1998-08-12 1998-12-03 Melting installation with charge preheater TW384380B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8412739U1 (en) * 1984-04-25 1986-01-23 Fuchs Systemtechnik GmbH, 7601 Willstätt Arc furnace with charge preheater
DE3839095A1 (en) * 1988-11-18 1990-05-23 Fuchs Systemtechnik Gmbh METHOD FOR OPERATING A MELTING UNIT AND MELTING UNIT FOR THIS METHOD
AT401527B (en) * 1991-12-20 1996-09-25 Voest Alpine Ind Anlagen METHOD FOR MELTING SCRAP, AND DEVICE FOR CARRYING OUT THIS METHOD

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