TW542884B - Ash melting device - Google Patents

Ash melting device Download PDF

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Publication number
TW542884B
TW542884B TW090129919A TW90129919A TW542884B TW 542884 B TW542884 B TW 542884B TW 090129919 A TW090129919 A TW 090129919A TW 90129919 A TW90129919 A TW 90129919A TW 542884 B TW542884 B TW 542884B
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TW
Taiwan
Prior art keywords
crucible
ash
melting device
patent application
scope
Prior art date
Application number
TW090129919A
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Chinese (zh)
Inventor
Hitoshi Mikajiri
Yoshio Tokai
Shinichi Okamoto
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Hikari Tech Co Ltd
Minowa Akira
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Publication of TW542884B publication Critical patent/TW542884B/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23MCASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00Casings; Linings; Walls
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/08Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
    • F23G5/085High-temperature heating means, e.g. plasma, for partly melting the waste
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44Details; Accessories
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00Specific waste
    • F23G2209/30Solid combustion residues, e.g. bottom or flyash
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23MCASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M2900/00Special features of, or arrangements for combustion chambers
    • F23M2900/05004Special materials for walls or lining

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

This invention relates to an ash melting device employing the means of using a crucible with a three-layer structure, using an auxiliary burner for prevention of the lowering of temperature in the vicinity of the discharge outlet, employing furnace walls with a four-layer structure to improve the heat insulating property and thereby improve the durability, providing lids at both the left and right sides to enable the crucible to be taken out readily, etc. This ash melting device is intended to significantly improve durability even after a long period of use at a high temperature of 1600 to 1700 DEG C or more, to resolve the problem of prevention of use of the melting furnace due to clogging of the vicinity of the discharge outlet by the cooling and solidification of the ash melt, to reduce fuel cost by the improvements in thermal efficiency through improvement of the heat insulating property of the furnace walls, and to enable the crucible to be exchanged readily in a short time.

Description

542884 A7 ^_____B7____ 五、發明說明(/ ) 本發明係關於灰之熔融裝置,特別是基於使產業廢棄 物、家庭垃圾等經由焚化所生成之焚化灰燼無毒化且可供 再利用之目的,爲了使焚化灰燼粒狀或塊狀化或纖維化, 而提供一極富效率且能小型化之焚化灰燼熔融裝置。 近年來,自各家庭、工廠、醫院等所排出之垃圾經焚 化後之焚化灰燼廢棄物中所含有之戴奧辛、重金屬、注射 針等被捨棄於環境中造成環境污染已成爲嚴重的社會問題 ,因此,此等廢棄物之處理手段爲所殷切企求者。 作爲上述焚化灰燼廢棄物之處理手段之經熔融固化、 減量化而使其無害化之方法曾被揭示,例如於日本特許願 2〇00-324734號公報中,揭示出圖1所示之灰之熔融裝 置,其於具有排出口 13與灰投入口 5之爐本體1中,係 具備有於中央附近具備燃燒器3 (其係使用丙烷氣、丁烷氣 等之石油氣,或瓦斯、及氧氣作爲燃料)之蓋2,其特徵在 於·該爐本體1的最內層有一層可更換的纟甘渦4 ’該ί甘渦 4的開口部係朝向蓋2側。 更進一步,就該發明參照圖1詳細加以說明,則爲: 爐本體1,壁自最內側起依序由坩堝4、流動砂11、第一 耐熱層8、第二耐熱層9、第三耐熱層10、鐵皮12所構 成,於爐本體1的側面之中央附近的一處設有灰投入口 5 ’於右側面設有坩堝頂出棒6,於左下方設有用以排出熔 融物14及排氣之排出口 13,於左上方設有溫度感測器7 ’且坩堝4的落下位置18係以熔融物14不與排出口 13 的壁面I6接觸之方式而構成。 -——_______ 本紙張尺度適用中國國家標準(CNS)A4規格(21〇 X 297公釐) (請先閱讀背面之注意事項再填寫本頁) - 訂---------線* 542884 A7 五、發明說明(χ 坩堝4,係使用例如日本坩堝(股)公司等所市售之耐 熱型之碳份30〜55%、SiC3〇〜55%石墨碳矽坩堝等,形成 爲既疋的大小之後’經锻燒而製造者;第一耐熱層8、第 二耐熱層9,可使用耐火澆注塊、坩堝、耐火磚等,第〜 耐熱層8使用耐熱性高的類型者。第三耐熱層10,可使用 板材或耐熱澆注塊等。 蓋2,與爐本體1同樣,其構成爲,自內側起依序爲 第一耐熱層8、第二耐熱層9、第三耐熱層10、鐵皮12 所構成,於中央部設置燃燒器3,以側面之鉸鏈可容易地 開閉,以螺釘等將能夠開閉之爐本體1如圖1所示般固定 成毫無間隙。 該發明中所使用之燃燒器3,係使用丙烷氣、丁烷氣 等之石油氣作爲燃料,以當量附近之較少之氧氣、或空氣 使完全燃燒之方式爲佳,能使氣體的燃燒所產生之廢氣較 乾淨,又由於自燃燒器3以比較低壓下噴吹,故灰的飛散 少,因而排氣中所含有之灰量也可較少,又,在燃燒器3 之火焰朝向坩堝4的中央附近之最高溫附近,將灰投入。 於該發明中之圖1所示之熔融爐運轉時,例如自燃燒 器3噴吹丙烷氣與當量附近的氧氣之混合氣’同時進行點 火,於經由溫度感測器7確認爐內溫度達is〇〇°c之管理 狀態時,將焚化灰燼由灰投入口投入,由於火焰的噴吹速 ..度慢,因此灰的飛散少,而且,由於可容易達到高溫,故 可迅速地使灰熔融,熔融物14成爲糊狀的液體自排出口 13落下到水15中,被粒狀化,於此,若不進入水中而排 (請先閱讀背面之注音?事項再填寫本頁) -------訂.------- 一 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) 542884 A7 ___ B7 _ 五、發明說明(> ) 出到空氣中徐徐冷卻則會塊狀化,又若加以拉伸則可纖維 化,可作爲混凝土之骨材或補強材等而可有效利用。 又,該發明中,經長期間使用後,坩堝4經耗損必須 更換之場合,須將熔融爐冷卻後,將蓋2打開直到180°C 左右,以爐本體1的側面之突出部17爲中心進行旋轉, 使蓋2的方向朝向下方,再將坩堝頂出棒6以油壓驅動、 或手動螺桿旋轉等推頂坩堝4,則加上流動砂11的作用, 可容易地取出坩堝4,可極爲容易地進行更換。 再者,該發明中記載著,該灰之熔融裝置,係固定成 可以爐本體1的突出部17爲中心而旋轉,可自由地設定 爐本體1的傾斜度,而可調整熔融物14之流出速度,又 ,爲防止熔融物附著結硬於排出口 13的壁面16,以於表 面設置與坩堝相同組成的圓筒型附著防止材19爲佳。 依據該發明之方法,於坩堝4,係使用一層例如日本 坩堝(股)公司等所市售之耐熱型之碳份30~55%、 SiC3Q~55%石墨碳矽坩堝等,惟在灰之熔融所必要之 l6〇0~l7〇0°C以上程度的高溫下連續長時間使用時,坩堝 4的耗損甚劇,只可耐數週至數個月程度,因此,爲了補 修,須再三停止熔融爐之運轉,或在熔融爐底部穿孔的狀 態下不經意地運轉,極端的情況下,甚至爐內側之耐熱層 受破壞而無法再使用,由於排出口 13附近的溫度低,有 時灰熔融物冷卻固化而堵塞致熔融爐無法使用等嚴重的問 題會發生,又爐壁的絕熱性不足熱效率不佳致燃料消耗高 騰,或於更換坩堝時採用以坩堝頂出棒6自單側推出之方 ____ —_______ 5 I氏張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) " (請先閱讀背面之注意事項再填寫本頁) 訂---------% 542884 B7 五、發明說明(今) 法,時或不易推出,及坩堝更換時之冷卻相當費時等之問 題存在。 本發明有鑑於上述之情形,以下述諸點爲主要之課題 :即使在1600°C~17 0(TC以上的高溫長時間使用亦可較習 知者顯著地提高耐久性、可改善因排出口 13附近之低溫 致灰熔融物的冷卻固化而堵塞致使熔融爐無法使用等之問 題、改善壁爐的絕熱性提高熱效率降低燃料消耗、可更容 易地更換坩堝,提升作業效率等。 爲解決上述之課題,本發明之構成,係一種灰之熔融 裝置,係於具有排出口與灰投入口之爐本體,設置具有燃 燒器之蓋而構成之爐;其特徵在於,該爐本體之最內層有 可更換之多層構造的坩堝,該坩堝的開口部係朝向設有燃 燒器之蓋側,將灰熔融之熔融物以重力的作用自排出口排出。 圖2係表示本發明之典型的實施型態,其主要部分, 係由爐本體1、蓋2、燃燒器3、坩堝4、灰投入口 5、溫 度感測器7等所構成。 而且,於該實施型態中,如圖2所示般,坩堝係使用 較習知者耗損性顯著地較小之三層構造的坩堝,使用輔助 燃燒器以防止排出口附近的溫度降低,採用四層構造的壁 爐以改善絕熱性並提高耐久性,於左右兩方設置蓋使坩堝 容易取出,藉由坩堝更換時的冷卻時間之縮短以期提升作 業效率。 以下,依圖2就本發明之具體的實施例之構成加以說 明。 本紙張尺度適用中關家標準(CNS)A4規格(210 X 297公爱) ------- (請先閱讀背面之注意事項再填寫本頁) 訂----- 542884 A7 _ B7____ 五、發明說明(4 ) 爐本體1以圓柱形爲佳,四角柱等之多角柱形狀亦可 ,又,壁自最內側起依序係由使用澆注塊等而構成之第一 耐熱層2Q、石綿等之第一絕熱層21、澆注塊等之第二耐 熱層22、石綿等之第二絕熱層23、及鐵皮12之五層所成 :並於爐本體1的上面,設有灰投入口 5,藉由於第一坩 堝24與第二坩堝26間之襯砂(backup sand) 25中設置 有熔融液滲漏感測器28,以檢測第一坩堝24之破裂等之 異常狀況;且於右側與左側兩處設有蓋2,於左下方設置 用以排出熔融物14及排氣之排出口 13,於左上方與排出 口 13處,設置溫度感測器7,而且以使熔融物14不會與 排出口 13的壁面I6接觸之方式設置坩堝4的落下位置 18 ° 坩堝4,係例如自內側起依序爲第一坩堝24、襯砂 25、第二堪堝26之至少三層的構造,第一ί甘禍24,係使 用例如鈦酸鋁系、氧化鋁系、氧化鉻系、氧化鎂系等之具 有l7〇0°C~24〇Q°C程度以上之高溫耐久性之超高溫耐久型 者,襯砂25,係使用氧化鎂水泥系之耐熱型者;第二坦渦 26,雖係使用習用之例如日本坩堝(股)公司等所市售之耐 熱型之碳份3〇~55%、SiC3〇~55%石墨碳砂增堝,惟,至 少藉由ί未用此二層的構造’由於習用之石墨碳砂纟甘禍之熱 傳導率極爲良好,而利用其不發生因熱衝撃而導致龜裂之 長處’並將超商溫耐久型之第一i甘堝I 24使用於與最內層 的熔融灰之接點,再於其外側採用耐熱耐久性高並有絕熱 性之襯砂25 ’可得到極良好的高溫長期耐久性,可顯著地 __ 7 張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) " ' --- (請先閱讀背面之注意事項再填寫本頁) -------訂.--------線* 542884 A7 ^_______B7 ___ 五、發明說明(、) 減少以往必須頻繁更換坩堝之次數,若將坩堝4作成三層 以上,當然更爲良好。 蓋2設置於左右二處,與爐本體1同樣,由內側起, 依序由第一耐熱層20、石綿等之第一絕熱層21、使用澆 注塊等之第二耐熱層22、石綿等之第二絕熱層23、鐵皮 I2之五層所構成;於左側的蓋2處,燃燒器3係朝向坩 堝4的開口部稍朝下設置,其下側係朝向排出口 13的附 近抵靠,且,左右之蓋2,可藉由側面之鉸鏈而容易地進 行開閉’可用螺釘等開閉自如且如圖2所示般氣密良好地 固定於爐本體1。 本發明所使用之燃燒器3,係使用丙烷氣、丁烷氣等 之石油氣作爲燃料,以用當量附近之較少的氧氣、或空氣 使進行完全燃燒之方式爲佳,可使氣體燃燒所發生之廢氣 較乾淨,且燃燒器3可在較低壓下噴吹,故灰的飛散少, 因而’排氣中所含有的灰量可較少,又,由於係在燃燒器 3發出的火焰朝向坩堝4的中央附近之最高溫處附近,將 灰投入’故將灰投入後可迅速地開始熔融。且,由於係採 上述般之合理的爐的構成,故熱效率非常良好,而可使用 價格低廉之含有天然氣瓦斯或燈油等之石化燃料。 本發明之圖2所示之熔融爐運轉時,於圖2所示之狀 態下’例如自燃燒器3噴吹丙烷氣與當量附近的氧氣之混 合氣’同時進行點火,於經由溫度感測器7確認爐內溫度 達l6〇0~l65〇°C之管理狀態時,將焚化灰燼由灰投入口 5 投入,由於火焰的噴吹速度慢,因此灰的飛散少,而且, _____8___ 本紙張尺度適用中國國家標準(CNS)A4規格(21〇 X 297公爱) (請先閱讀背面之注意事項再填寫本頁) I i tmmmt HI an n —ϋ 一 0 I Ha i n an 542884 A7 ______B7____ 五、發明說明(q ) 由於可容易達到高溫,故可迅速地發生灰的熔融,熔融物 I4成爲糊狀的液體自排出口 13落下到水15中,被粒狀 化,於此,若不進入水中而排出到空氣中徐徐冷卻則會塊 狀化,又若加以拉伸則可纖維化,可作爲混凝土、瀝青之 骨材或補強材等而可有效利用。 本發明之灰之熔融裝置,藉由上述之構成,可發揮下 述之效果· (1) 堪渦,係自內側起依序爲第一增渦、襯砂、第二 坩堝之三層構造,第一坩堝,係使用具有17〇(TC〜2400°C 程度以上之高溫耐久性之超高溫耐久型者等;襯砂,係使 用氧化鎂混凝土系之耐熱型者等;第二坩堝,雖係使用習 用之石墨碳矽坩堝,惟,藉由採用此三層的構造,由於習 用之石墨碳矽坩堝之熱傳導率良好,故可最大限地利用其 不發生因熱衝擊導致龜裂之長處,且將超高溫耐久型之第 一坩堝使用於與最內層的熔融灰之接點,藉由於中間採用 耐熱耐久性高並有絕熱性之襯砂,可得到極其良好的高溫 長期耐久性,可顯著地減少以往必須頻繁更換坩堝之次數 〇 (2) 藉由於排出口 13附近使用輔助燃燒爐27,可確 實地防止以往於排出口 13處被熔融灰阻塞之大問題。 (3) 由於係爲於左右兩方設置蓋2之構成,經耗損之 坩堝的更換作業可較習用者更容易施行’又,於坩堝更換 時的爐之冷卻可較快速,故可於短時間內完成更換作業, 且內側的淸掃作業可變得容易。 9_____ 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) (請先閱讀背面之注意事項再填寫本頁) 訂---------線* 542884 A7 __B7_ 五、發明說明(s ) 圖式之簡單說明 圖1係顯示習知法的一實施例之側截面圖。 圖2係顯示本發明的一實施例之側截面圖。 元件符號說明 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 爐本體 蓋 燃燒器 坩堝 灰投入口 坩堝頂出棒 溫度感測器 第一耐熱層 第二耐熱層 第三耐熱層 流動砂 鐵皮 排出口 熔融物 水 壁面 突出部 落下位置 附著防止材 (請先閱讀背面之注意事項再填寫本頁)542884 A7 ^ _____ B7____ 5. Description of the Invention (/) The invention relates to an ash melting device, especially based on the purpose of making the incineration ash generated by incineration of industrial waste, household waste, etc. through incineration non-toxic and available for reuse. The incineration ash is granular or lumped or fibrillated, and an incineration ash melting device with high efficiency and miniaturization is provided. In recent years, dioxin, heavy metals, injection needles, and the like contained in incinerated ash wastes from households, factories, hospitals, and the like after being incinerated have been abandoned in the environment and environmental pollution has become a serious social problem. Therefore, These waste disposal methods are eagerly sought. As a method for treating the above-mentioned incineration ash waste, a method of melting and solidifying and reducing it to render it harmless has been disclosed. For example, in Japanese Patent Laid-Open No. 2000-324734, the ash as shown in FIG. 1 is disclosed. The melting device includes a furnace body 1 having a discharge port 13 and an ash input port 5 provided with a burner 3 near the center (which uses petroleum gas such as propane gas, butane gas, or gas, and oxygen). The cover 2 as a fuel) is characterized in that the innermost layer of the furnace body 1 is provided with a layer of replaceable eddy vortex 4 'The opening of the eddy vortex 4 faces the cover 2 side. Further, the invention will be described in detail with reference to FIG. 1 as follows: The furnace body 1, the walls are sequentially from the innermost side of the crucible 4, the flowing sand 11, the first heat-resistant layer 8, the second heat-resistant layer 9, and the third heat-resistant The layer 10 and the iron sheet 12 are provided. An ash input port 5 ′ is provided at a place near the center of the side of the furnace body 1. A crucible ejection rod 6 is provided on the right side, and a melt 14 and a drain are provided at the lower left. The gas discharge port 13 is provided with a temperature sensor 7 ′ at the upper left, and the dropping position 18 of the crucible 4 is configured so that the melt 14 does not contact the wall surface I6 of the discharge port 13. -——_______ This paper size applies to China National Standard (CNS) A4 (21〇X 297 mm) (Please read the precautions on the back before filling this page)-Order --------- line * 542884 A7 V. Description of the invention (χ crucible 4, which is made of, for example, 30 to 55% of heat-resistant carbon, SiC3 to 55% of graphite carbon silicon crucibles, etc., which are commercially available from Japan Crucible (Stock) Co. After the size, it is manufactured by calcination; the first heat-resistant layer 8 and the second heat-resistant layer 9 can use refractory casting blocks, crucibles, refractory bricks, etc., and the first to the heat-resistant layer 8 use types with high heat resistance. Third As the heat-resistant layer 10, a plate or a heat-resistant pouring block can be used. The cover 2 is similar to the furnace body 1 in that it is composed of a first heat-resistant layer 8, a second heat-resistant layer 9, a third heat-resistant layer 10, The burner 3 is composed of the iron sheet 12, and the burner 3 is installed at the center, which can be easily opened and closed with a hinge on the side, and the furnace body 1 which can be opened and closed is fixed with a screw or the like as shown in FIG. 1 without gaps. Burner 3 uses propane gas, butane gas and other petroleum gas as fuel. The less oxygen or air makes the complete combustion better. It can make the exhaust gas produced by the combustion of the gas cleaner, and because it is sprayed from the burner 3 at a relatively low pressure, the ash is scattered less, so the exhaust is exhausted. The amount of ash contained in it may also be small, and the ash is put in the vicinity of the highest temperature near the center of the crucible 4 where the flame of the burner 3 is directed. When the melting furnace shown in FIG. 1 in the invention is operated, for example, From the burner 3, a mixture of propane gas and oxygen in the vicinity of an equivalent amount is injected and ignited at the same time. When it is confirmed that the temperature in the furnace reaches a management state of is 00 ° c through the temperature sensor 7, the incineration ash is introduced from the ash inlet Since the blowing speed of the flame is slow, the scattering of ash is small, and because the high temperature can be easily reached, the ash can be quickly melted. The molten material 14 becomes a paste-like liquid and drops from the discharge port 13 to water. 15, it is granulated, here, if it does not enter the water (please read the note on the back? Matters before filling out this page) ------- order .------- a piece of paper Standards apply to China National Standard (CNS) A4 (210 X 297 mm) 54288 4 A7 ___ B7 _ V. Description of the invention (>) When it is slowly cooled in the air, it will become lumpy, and if it is stretched, it will become fibrous, and it can be effectively used as concrete aggregate or reinforcement. In addition, in the present invention, if the crucible 4 needs to be replaced after being worn out after a long period of use, the melting furnace must be cooled, and the lid 2 must be opened to about 180 ° C, with the protrusion 17 on the side of the furnace body 1 as the center. Rotate so that the direction of the lid 2 faces downward, and then push the crucible ejection rod 6 to drive the crucible 4 by oil pressure driving or manual screw rotation, etc. Then, with the function of the flowing sand 11, the crucible 4 can be easily taken out. Extremely easy to replace. Furthermore, the invention describes that the ash melting device is fixed to be rotatable around the protrusion 17 of the furnace body 1, the inclination of the furnace body 1 can be set freely, and the outflow of the melt 14 can be adjusted In order to prevent the molten material from adhering to the wall surface 16 of the discharge port 13, it is preferable to provide a cylindrical adhesion preventing material 19 having the same composition as the crucible on the surface. According to the method of the invention, in the crucible 4, a layer of heat-resistant carbon of 30 to 55%, SiC3Q to 55% graphite carbon silicon crucible, etc., which is commercially available from Japan Crucible (Stock) Co., is used, but the ash is melted. The necessary crucible 4 wears out continuously for a long time at a high temperature of above 1600 ~ 1700 ° C, and can only withstand several weeks to several months. Therefore, in order to repair, the melting furnace must be stopped repeatedly. Operation, or inadvertent operation in the state of perforation in the bottom of the melting furnace. In extreme cases, even the heat-resistant layer inside the furnace is damaged and can no longer be used. Due to the low temperature near the discharge port 13, the ash melt may cool and solidify. Serious problems such as unavailability of the melting furnace due to clogging will occur, and the lack of thermal insulation of the furnace wall will result in high fuel consumption, or the crucible ejection rod 6 will be used to push out from one side when replacing the crucible ____ — _______ 5 I-scale is applicable to China National Standard (CNS) A4 specification (210 X 297 mm) " (Please read the precautions on the back before filling this page) Order ---------% 542884 B7 V. Description of Invention (Today) There are problems such as when it is difficult to push out, and when the crucible is replaced, it takes a lot of time to cool. In view of the above-mentioned circumstances, the present invention has the following main points: Even at high temperatures of 1600 ° C to 17 ° C (TC) for a long time, it can significantly improve the durability and improve the outlet due to the known person. Problems such as the melting and solidification of low-temperature ash melts near 13 and the blockage of the melting furnace make it unusable, improving the heat insulation of the fireplace, improving thermal efficiency, reducing fuel consumption, easier replacement of crucibles, and improving work efficiency. The structure of the present invention is an ash melting device, which is a furnace constituted by a furnace body having a discharge port and an ash input port, and provided with a burner cover; characterized in that the innermost layer of the furnace body is The crucible of the multi-layer structure is replaced, and the opening of the crucible is directed to the cover side provided with the burner, and the molten ash melt is discharged from the discharge port by gravity. Fig. 2 shows a typical embodiment of the present invention. The main part is composed of the furnace body 1, the cover 2, the burner 3, the crucible 4, the ash input port 5, the temperature sensor 7, and the like. In this embodiment, as shown in FIG. Generally, the crucible uses a crucible with a three-layer structure that is significantly less wearable than the conventional one, uses an auxiliary burner to prevent the temperature near the discharge port, and uses a four-layer fireplace to improve thermal insulation and durability. The left and right sides are provided with lids to make it easy to take out the crucible, and the cooling time during the replacement of the crucible is shortened to improve the work efficiency. Hereinafter, the structure of a specific embodiment of the present invention will be described with reference to FIG. Home Standard (CNS) A4 Specification (210 X 297 Public Love) ------- (Please read the notes on the back before filling out this page) Order ----- 542884 A7 _ B7____ V. Description of the invention (4 ) The furnace body 1 is preferably cylindrical, and the shape of a polygonal column such as a quadrangular column is also possible. In addition, the first heat-resistant layer 2Q, asbestos, and the like of the wall are sequentially formed from the innermost side by using a casting block and the like. Layer 21, second heat-resistant layer 22 such as casting block, second heat-insulating layer 23 such as asbestos, and five layers of iron sheet 12: and on the top of the furnace body 1, an ash input port 5 is provided. Sand lining between crucible 24 and second crucible 26 (backup s and) 25 is provided with a molten liquid leakage sensor 28 to detect abnormal conditions such as the rupture of the first crucible 24; and two covers are provided on the right and left sides, and a melt 14 is provided on the lower left to discharge the molten material 14 and The exhaust outlet 13 of the exhaust gas is provided with a temperature sensor 7 at the upper left and the outlet 13, and the crucible 4 is placed at an 18 ° crucible so that the melt 14 does not contact the wall surface I6 of the outlet 13 4. For example, from the inside, there are at least three layers of the first crucible 24, the sand lining 25, and the second can 26. The first Gancao 24 uses, for example, aluminum titanate, alumina, Chromium oxide-based, magnesium oxide-based, ultra-high-temperature durable types with high-temperature durability above 1700 ° C ~ 2400Q ° C, sand lining 25, heat-resistant types using magnesium oxide cement; Ertan vortex 26, although it uses conventional heat-resistant carbon 30-305% and SiC 30-55% graphite carbon sand increase pots, such as those commercially available from Japan Crucible (Stock) Co., but at least by using ί The structure that does not use these two layers is used because the conventional graphite carbon sand has a very good thermal conductivity. The advantages of cracking due to thermal shock do not occur ', and the first commercial kiln pot I 24 of super-commercial temperature and durability type is used for the contact with the innermost molten ash. Insulating lining sand 25 'can get very good long-term durability at high temperature, which can significantly __ 7 scales apply Chinese National Standard (CNS) A4 specifications (210 X 297 mm) "' --- (Please (Please read the notes on the back before filling this page) ------- Order. -------- Line * 542884 A7 ^ _______ B7 ___ V. Description of the invention (,) Reduce the number of times that the crucible must be frequently replaced in the past If the crucible 4 is made of three or more layers, it is of course better. The cover 2 is provided at two places on the left and the right, and is the same as the furnace body 1 from the inside, in order from the first heat-resistant layer 20, the first heat-insulating layer 21 such as asbestos, the second heat-resistant layer 22 using a casting block, and the like The second heat insulation layer 23 and the five layers of the iron sheet I2 are formed; at the cover 2 on the left side, the burner 3 is arranged slightly downward toward the opening of the crucible 4 and the lower side thereof abuts toward the vicinity of the discharge port 13 and The left and right covers 2 can be easily opened and closed by hinges on the sides. They can be opened and closed freely with screws and the like, and are air-tightly fixed to the furnace body 1 as shown in FIG. 2. The burner 3 used in the present invention uses petroleum gas such as propane gas, butane gas as a fuel, and it is preferable to use a small amount of oxygen near the equivalent, or air for complete combustion, which can burn gas. The generated exhaust gas is clean, and the burner 3 can be blown at a lower pressure, so the ash is scattered less, so the amount of ash contained in the exhaust gas can be less, and because of the flame emitted by the burner 3 As the ash is placed toward the vicinity of the highest temperature near the center of the crucible 4, the ash is injected, so that the ash can be rapidly melted after the ash is injected. In addition, since it adopts a reasonable furnace structure as described above, the thermal efficiency is very good, and inexpensive petrochemical fuels including natural gas, kerosene, and the like can be used. When the melting furnace shown in FIG. 2 of the present invention is operating, in the state shown in FIG. 2 'for example, a mixture of propane gas and an oxygen gas near the equivalent' is blown from the burner 3 to ignite at the same time. 7 When confirming that the temperature in the furnace reaches the management state of 1660 ~ 1650 ° C, put incineration ashes through the ash input port 5, because the flame blowing speed is slow, so the ash scattering is small, and _____8___ This paper size is applicable China National Standard (CNS) A4 specification (21〇X 297 public love) (Please read the notes on the back before filling this page) I i tmmmt HI an n —ϋ 1 0 I Ha in an 542884 A7 ______B7____ 5. Description of the invention (Q) Since high temperature can be easily reached, ash melting can occur rapidly, and the molten material I4 becomes a paste-like liquid that falls from the discharge port 13 into the water 15 and is granulated. Here, it is discharged without entering the water. If it is slowly cooled in the air, it will become lumpy, and if it is stretched, it will become fibrous, and it can be effectively used as concrete, asphalt, or reinforcing materials. The ash melting device of the present invention can exhibit the following effects by the above-mentioned structure. (1) The vortex is a three-layer structure of a first vortex increaser, a sand lining, and a second crucible in order from the inside. The first crucible is an ultra-high-temperature durable type with high-temperature durability above 170 ° C to 2400 ° C. The sand lining is a heat-resistant type using magnesia concrete. The second crucible is The conventional graphite carbon-silicon crucible is used. However, by adopting this three-layer structure, the conventional graphite carbon-silicon crucible has good thermal conductivity, so it can make the most of its advantages that do not cause cracks due to thermal shock, and The first crucible of the ultra-high temperature durability type is used for the contact with the innermost molten ash. By using a sand lining with high heat resistance and heat insulation in the middle, it can obtain extremely good high temperature long-term durability, which can be significant. In the past, the number of crucibles that had to be replaced frequently was reduced in the past. (2) By using the auxiliary combustion furnace 27 near the discharge port 13, it is possible to reliably prevent the large problem of blocking the molten ash in the discharge port 13 in the past. Left and right The structure of the cover 2 is provided on the side, and the replacement of the worn crucible can be performed more easily by the user. Moreover, the furnace can be cooled quickly when the crucible is replaced, so the replacement operation can be completed in a short time. Sweeping can be done easily. 9_____ This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page) Order --------- Line * 542884 A7 __B7_ V. Brief Description of the Invention (s) Diagrams Figure 1 is a side sectional view showing an embodiment of the conventional method. Figure 2 is a side sectional view showing an embodiment of the invention. Symbol Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Furnace body cover Burner Crucible Ash input port Crucible ejector rod Temperature sensor The first heat-resistant layer The second heat-resistant layer The third heat-resistant layer flows The surface of the molten iron on the surface of the sand sheet discharge outlet protrudes from the lower part of the tribe. (Please read the precautions on the back before filling this page)

ϋ H ϋ n ϋ n 11 一 ον f n n flu I— I 線一 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) 542884 A7 _ B7 五、發明說明(j ) 20 第一耐熱層 21 第一絕熱層 22 第二耐熱層 23 第二絕熱層 24 第一坩堝 25 襯砂 26 第二坩堝 27 輔助燃燒爐 28 熔融液滲漏感測器 (請先閱讀背面之注意事項再填寫本頁) -------訂------- |!線_ __11 ^紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐iϋ H ϋ n ϋ n 11 1ον fnn flu I— I line 1 paper size applies Chinese National Standard (CNS) A4 specification (210 X 297 mm) 542884 A7 _ B7 V. Description of the invention (j) 20 First heat resistance Layer 21 First insulation layer 22 Second heat-resistant layer 23 Second insulation layer 24 First crucible 25 Sand lining 26 Second crucible 27 Auxiliary combustion furnace 28 Molten liquid leakage sensor (Please read the precautions on the back before filling in this Page) ------- Order ------- |! Line _ __11 ^ Paper size applies to China National Standard (CNS) A4 (210 X 297 mmi

Claims (1)

542884 A8 SI 、申請專利範圍 1. 一種灰之熔融裝置,係於具有排出口與灰投入口 之爐本體,設置具有燃燒器之蓋而構成之爐;其特徵在於 該爐本體之最內層設有可更換之多層構造的坩渦,該 坩堝的開口部係朝向設有燃燒器之蓋側,將灰熔融之熔融 物以重力的作用自排出口排出。 2. 如申請專利範圍第1項之灰之熔融裝置,其中之 坩堝,係使用第一坩堝、襯砂、第二坩堝之三層構造者。 3. 如申請專利範圍第2項之灰之熔融裝置,其·中之 第一坩堝,係使用鈦酸鋁系、氧化鋁系、氧化锆系、氧化 鎂系等之具有17〇〇°C~24〇〇°C程度以上之高溫耐久性之超 高溫耐久型者;第二坩堝係使用石墨碳矽坩堝。 4 ·如申請專利範圍第1、第2或第3項之灰之熔融 裝置,其中之燃燒器係朝向斜下方,並朝向坩堝的下底噴 吹火焰。 5 ·如申請專利範圍第1、第2或第3項之灰之熔融 裝置,係於排出口附近設置輔助燃燒器。 6 ·如申請專利範圍第1、第2或第3項之灰之熔融 裝置,係於左右兩方設置蓋。 7 ·如申請專利範圍第1、第2或第3項之灰之熔融 裝置,係將灰投入口設置於爐本體之上方。 8 ·如申請專利範圍第1、第2或第3項之灰之熔融 裝置,係於第一坩堝與第二坩堝間的襯砂中設置熔融液滲 漏感測器。 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) (請先閲讀背面之注意事項再填寫本頁) 、1T: 542884 A8 滢 D8 六、申請專利範圍 9.如申請專利範圍第1、第2或第3項之灰之熔融 裝置,其中之蓋與爐本體,係由第一耐熱層、第一絕熱層 、第二耐熱層、第二絕熱層、鐵皮之五層所構成。 (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)A4規格(210 X 297公釐)542884 A8 SI, scope of patent application 1. An ash melting device is a furnace with a burner cover provided with a discharge port and an ash input port, and is characterized in that the innermost layer of the furnace body is provided There is a crucible with replaceable multi-layer structure. The opening of the crucible is directed to the cover side provided with the burner, and the molten ash melt is discharged from the discharge port by the action of gravity. 2. As for the ash melting device in the scope of the patent application, the crucible is a three-layer structure using the first crucible, sand lining and second crucible. 3. As for the ash melting device in the scope of patent application No. 2, the first crucible in it is made of aluminum titanate, alumina, zirconia, magnesium oxide, etc., which has a temperature of 1700 ° C ~ Ultra-high temperature endurance type with high temperature durability above 2400 ° C; the second crucible is a graphite carbon silicon crucible. 4 · If the ash melting device of item 1, 2 or 3 of the scope of patent application, the burner is directed obliquely downward, and the flame is sprayed toward the bottom of the crucible. 5 · If the ash melting device of item 1, 2 or 3 of the scope of patent application, the auxiliary burner is set near the discharge port. 6 · If the ash melting device in the scope of patent application No. 1, 2 or 3, the cover is provided on the left and right sides. 7 · If the ash melting device of item 1, 2 or 3 of the scope of patent application, set the ash input port above the furnace body. 8 · If the ash melting device of item 1, 2 or 3 of the scope of the patent application, the molten liquid leakage sensor is set in the lining sand between the first crucible and the second crucible. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling out this page), 1T: 542884 A8 滢 D8 6. Patent application scope 9. If patent application scope The ash melting device of item 1, 2 or 3, wherein the cover and the furnace body are composed of five layers of a first heat-resistant layer, a first heat-insulating layer, a second heat-resistant layer, a second heat-insulating layer, and an iron sheet . (Please read the precautions on the back before filling out this page) This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)
TW090129919A 2001-08-29 2001-12-04 Ash melting device TW542884B (en)

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