TW200424479A - Gasification and slagging combustion method and apparatus - Google Patents

Gasification and slagging combustion method and apparatus Download PDF

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Publication number
TW200424479A
TW200424479A TW93110469A TW93110469A TW200424479A TW 200424479 A TW200424479 A TW 200424479A TW 93110469 A TW93110469 A TW 93110469A TW 93110469 A TW93110469 A TW 93110469A TW 200424479 A TW200424479 A TW 200424479A
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Taiwan
Prior art keywords
slag
furnace
gasification
gas
combustion
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TW93110469A
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Chinese (zh)
Inventor
Tomoyuki Shiina
Yuichi Iida
Takao Kobayashi
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Ebara Corp
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Publication of TW200424479A publication Critical patent/TW200424479A/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/006Layout of treatment plant
    • 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
    • F23G5/006General arrangement of incineration plant, e.g. flow sheets
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00Pretreatment
    • F23G2201/30Pyrolysing
    • F23G2201/303Burning pyrogases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00Pretreatment
    • F23G2201/30Pyrolysing
    • F23G2201/304Burning pyrosolids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00Pretreatment
    • F23G2201/40Gasification
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2202/00Combustion
    • F23G2202/10Combustion in two or more stages
    • F23G2202/104Combustion in two or more stages with ash melting stage
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2202/00Combustion
    • F23G2202/20Combustion to temperatures melting waste

Abstract

The present invention relates to a gasification and slagging combustion method for gasifying combustibles, delivering produced gas and char (solid carbon) into a slagging combustion furnace, and combusting the gas and char at a high temperature and melting fly ash into molten slag in the slagging combustion furnace. The gasification and slagging combustion method includes gasifying combustibles in a gasification furnace (10) to produce a gas, combusting the produced gas (G1) at a high temperature and melting ash in the produced gas in a slagging combustion furnace (11), separating incombustibles discharged from the gasification furnace (10) and removing metals from the separated incombustibles crushing the incombustibles, and supplying the crushed incombustibles to the gasification furnace (10) or the slagging combustion furnace (11) or a duct for introducing the produced gas (G1) into the slagging combustion furnace (11).

Description

200424479 九、發明說明: 【發明所屬之技術領域】 . 本發明係有關於一種氣體化渣料燃燒方法及裝置,係 •用以將包含都市(Municipal)廢棄物、工業廢棄物、生物性 (Biomass)廢棄物等可燃物予以氣體化,再將所產生的氣體 與焦炭(char)(固體碳)送至渣料燃燒爐,並在渣料燃燒 爐内於南概下燃燒氣體與焦炭,而將灰燼炫化成溶化渣 料(mol ten slag)。 *【先前技術】 近年來,有一種廢棄物處理製程正逐漸被人們所採 用,其係將諸如都市廢棄物、工業廢棄物、以及生物性與 醫藥廢棄物等廢棄物,於流化床氣體化爐(f luidized—bed gasification furnace)内,在低壓環境下予以氣體化(高 溫分解化(pyrolyzing)),再將由氣體化處理所產生的氣 體、焦炭和灰燼導入渣料燃燒爐(灰燼熔化爐)内,並於 鲁孩渣料燃燒爐中,於咼溫下燃燒氣體與焦炭,而炼化灰燼。 舉例而言,在習知之氣體化渣料燃燒系統(灰燼熔化 系統)中,有如曰本國專利公開第7-33264號所提出之流 化床氣體化渣料燃燒爐。依照該專利公告中所揭露的流化 床氣體化渣料燃燒爐,由於流化床的溫度相對較低,而能 夠穩定地產生高溫分解氣體,並能夠穩定地供應高溫分解 殘留物至旋渦式渣料燃燒爐(swirling—type slagging combustion furnace),因此在該旋渦式渣料燃燒爐中,能 夠維持非常穩定的燃燒條件。而也因此在該璇渦式渣料燃 315742 6 200424479 捧φ 4、准持穩定的溫度。此流化床氣體化渔料燃燒 :欠中-個特徵係為,由於能夠 =、=能將崎於生成氣體中的飛灰(nyash)溶化成 ’-料故此夠減少飛灰的處理量。 再者在氣體化爐係包括流化床氣體化爐的情況中, 不可燃物係與例如砂子等之流化料物(fluidized ledl:i 一起從氣體化爐之爐體底部排出,而再藉由-震 二1。° (Vlbrating screen)將不可燃物與流化媒介物 西/子)f以互相分離。然後,從這些不可燃物中回收有 價值的金屬,亦即’利用磁選機“咖…卿㈣ 從不可燃物中回收鐵,而利用㈣分離機⑷^麵 separator)從不可燃物中回收鋁,然後,再將剩餘的不可 燃物當作殘渣排送至廢棄物掩埋場。 去排达至廢棄物掩埋場之不可燃物(殘渣)的量係佔廢 茶物處理量(要處理之廢棄物的總供應量)之重量的I 5 %至5%。這些須被丟棄的不可燃物,一直都對排送至氣 體化渣料燃燒系統外部之最終處理量的減量化造成阻礙。 為了要降低最終處理量’故將不可燃物大量地直接送 回氣體化爐,然而不可燃物仍然從爐體底部以原來的狀態 排出,因此,不可燃物只不過是在系統中(氣體化爐,以 及不可燃物排放與回收通道)進行循環。因此,不可燃物 並非被排放至系統外部,使進行循環的不可燃物逐漸增 加,導致氣體化爐發生故障。另一方面,如果將不可燃物 大量直接供給至渣料燃燒爐中,則大量不可燃物會堆積在 315742 7 ZUU4244/y 順利排出。 渣料燃燒爐底部,使渣料無法 【發明内容】 本發明為有鑑於前述之門 i H ^之問續點所開發者。本發明之主 要目的係提供一種氣體化、、杏姐糾、以 斟勹入认y丨 ’一 ^方法及裝置’可適當地 對匕έ於例如廢棄物之可婵物 “、、物中的不可燃物,以及從氣體 化爐底部排出的不可姆物谁 ^ ^ “、、進仃處理,並能夠降低排放至整 、、、、取、炎段里,亚能予以穩定地操作。 為達上述目的,在本發明^ ^ & 一#尸_ 你不士明的弟一貫施態樣中,係提供 m …、 匕括·在氣體化爐中氣體化可 Μ物’以產生氣體;將由氣妒 化處理所產生的氣體導入渣 料燃燒爐中;在渣料_择愤φ ^ 山 一…、凡爐中以鬲溫燃燒該生成氣體和焦 厌(固體碳),並熔化該生成翁栌由 风乳肢中的飛灰;分離由氣體化 2部排出的不可燃物’並從該分離後之不可燃物中移除 孟屬,將已移除金屬之不可燃物予以碾碎,並將該礙碎後 的:可燃物供給至氣體化爐、渣料燃燒爐、或用以導入生 成氣體至渣料燃燒爐的導管(duct)。 依據本發明之第一實施態樣,係將由氣體化爐底部排 出的不可燃物予以分離,再從分離後的不可燃物中移除金 屬’再將已移除金屬之不可燃物^以礙碎,並儲存礙碎後 的不可燃物,然後,以固定速率排出所儲存的不可燃物, 亚供給至氣體化爐、渣料燃燒爐、或用以導入生成氣體至 渣料燃燒爐的導管。據此,能夠將大部分從氣體化爐底部 排出之不可燃物熔化成熔化渣料,並能夠減少排出至整體 氣體化渣料燃燒裝置外部的最終處理量,並能夠穩定地操 315742 8 44/9 作該氣體化渣料燃燒裝置。 後,。據本^明的一個較佳實施態樣,在碾碎不可燃物 < ’可將該碼碎的不可燃物儲存於料斗(hopper)中。 排ψΓ!!切明的—個較佳實施態樣,可將從渣料燃燒爐 5 # μ ^放氣體中回收的飛灰與碾碎之不可燃物一起供給 至氣體化爐、、、杳极祕卜Α各 燒爐的導总。 或用以導入生成氣體至渣料燃 成:率、^因此,能夠增加整體氣體化渣料燃燒裝置的 =“(Slagglng rate),並能夠減少排放至整體氣體化 渣料燃燒系統外部的飛灰量。 康本&明的一個較佳實施態樣,可將礙碎之不可燃 以固定速率供給至氣體化爐、㈣燃燒爐、或導管/、 、依據本發明的—個較佳實施態樣,可將碟碎之不可燃 匆以可夂逮率供給至氣體化爐、渣料燃燒爐、或導管。 依據本發明的一個較佳實施態樣,可調整供給至氣體 化爐盧料燃燒爐、或導管之礙碎不可燃物的量,俾使渣 料燃燒爐中的溫度變成丨2〇〇。匸以上。 依據本發明的一個較佳實施態樣,氣體化渣料燃燒裝 置可包含:分離及選別裝置,用以分離由氣體化爐排出: 不可燃物’並從分離後之不可燃物中移除金屬;碾碎裝置, 用以碾碎業已由分離及選別裝置分離,並從中移除金屬的 不可燃物;以及定速率送料器(constant feeder),在儲 存礙碎之不可燃物後,將該業已㈣碎裝置糾之不可辦 物,以固定速率供給至氣體化爐、渣料燃燒爐、或用以導 入生成氣體至渣料燃燒爐的導管。據此,能夠將大部分從 315742 9 200424479 ==部排出的不可燃物炫化成溶化潰料,並因此能 :,二?至ί體氣體化渣料燃燒裝置外部的最終處理 里’亚能夠穩定地操作氣體化渣料燃燒裝置。 排出:::發:的一個較佳實施態樣’可將從潰料燃燒爐 =出之㈣氣體巾时的歧供給至氣體 爐、或導管。 7卞·、、、70 在本實施態樣中’可提供飛灰回收裝置,其係用以從 邊料燃燒爐排出之排放氣俨飞 ,、 回收裝置回收的飛灰供仏至灰’並可將由該飛灰 肌又至乳體化爐、渣料燃燒爐、或用 -2=體至渣料燃燒爐的導管。因此,能夠增加整 Γ乳體化渣料燃燒|置的成渣率,並能夠減少排放至整體 軋體化渣料燃燒系統外部的飛灰量。 =本發明之第二實施態樣中,係提供—種氣體化潰料 二、、几衣f包括.乳體化爐,用以氣體化可燃物,以產生 乳體;渣料燃燒爐,以高溫燃燒由氣體化處理產生之氣體 和f炭(固體碳)’並熔化該生成氣體中的飛灰;分離及選 別虞置’配置成可分離由氣體化爐底部排出的不可嬅物, 並從該分離後之不可燃物中移除金屬;礙碎機,配置成可 將已移除金屬之不可燃物予以碾碎;供給裝置,配置成, 可將該礙碎後的不可燃物供給至氣體化爐、渣料燃燒爐、 或用以導入生成氣體至渣料燃燒爐的導管。 *依據本發明的一個較佳實施態樣,該氣體化渣料燃燒 裝置可復包括:料斗’配置成可在不可燃物被礙碎後,儲 存該礙碎之不可燃物。 ]〇 315742 200424479 ―、依據本發明的一個較佳實施態樣,該供給裝置可包括 疋連率送料器,配置成能夠以固定速率供給碾碎之不可燃 物。 …、 以、依據本發明的一個較佳實施態樣,該供給裝置可包括. 、又速率送料器,配置成,能夠以可變速率供給碾 u 燃物。 依據本發明的一個較佳實施態樣,該供給裝置可包括 調節裝置(regulating device),配置成,可調整供給至 氣版化爐、渣料燃燒爐、或導管之碾碎不可燃物的量,俾攀 使渣料燃燒爐中的溫度變成1200°C以上。 依據本發明的一個較佳實施態樣,氣體化渣料燃燒裝 置可復包括·飛灰回收裝置,配置成可從渣料燃燒爐排出 之排放氣體中回收飛灰;以及飛灰供給裝置,其係配置成, 可將由飛灰回收裝置回收的飛灰供給至氣體化爐、渣料燃 燒爐、或導管。 【實施方式】 以下參照圖面說明本發明之氣體化渣料燃燒方法及裝修 置的具體實施例。 第1圖係顯示用以執行本發明的一個具體實施例之氣 體化潰料燃燒方法的氣體化渣料燃燒裝置的概要圖。如第 1圖所示,氣體化渣料燃燒裝置包括流化床氣體化爐1 〇與 潰料燃燒爐11。該流化床氣體化爐10具備有流化床1〇a, 在該流化床1 Oa中,藉由從流化床氣體化爐1 〇底部導入之 流化氣體(fluidizing gas),將例如矽砂(Siiica sand) 315742 200424479 的流化媒介物(fluidized medium)予以流體化。而在流 化床氣體化爐10中,將由可燃物供給裝置12供給至該流 •化床氣體化爐1 〇中的可燃物13 (例如廢棄物)氣體化, 而將由氣體化處理所產生的氣體G1從氣體出口 1 〇b排出。 再者,在渣料燃燒爐Π中,將由流化床氣體化爐1 〇 排出的生成氣體G1,從氣體入口 lla導入渣料燃燒爐u 中,並與導入其中的空氣混合,再以高溫燃燒生成氣體G1 _以及包含於氣體G1中的焦炭(固體碳),並因而在高溫下, 將匕έ於。亥生成氣體中的飛灰炫化成炼化逢料A,再從洁 料排放埠(slag discharge port) lib將熔化渣料A排放 至系統外部,並將燃燒排放氣體G2從氣體出口 1 lc排出。 攸流化床氣體化爐1 〇底部排出的不可燃物,即隨著流 化媒介物,經由連接爐體底部與不可燃物排出器15的不可 燃物排出通道14排出。然後,從不可燃物排出器15排出 燃物與流化媒介物,並供給至震動過篩器16。在震動 篩器16中,將不可燃物B與流化媒介物(砂子)c彼此 並將不可燃物B供給至磁選機暨紹質分離機17。另 —方面將流化媒介物C供給至流化媒介物輸送器(升降 )18,並隨後經由螺旋送料器(screw feeder) Μ回送 至流化床氣體化爐10的流化床1〇a。 、 在磁選機暨㈣分離機17中,將從所供應之不可燃物 、、回收例如鐵或鋁等有價值的金屬D。具體而言,係藉由 二機,收鐵,而藉由鋁質分離機回收紹。將由磁選· 貝为離機17所回收之有價值的金屬D,排送至系統外 315742 200424479 非為有價值金的不可燃物E則儲存於不可燃物料 , ❿儲存於不可燃物料斗20中的不可燃物E,則 由例如位於料斗底部之螺旋型排出器的排出裝置(未顯、 Γ ’以固定速率排出。再藉由礙碎器21(CrUsher),將該 寺被排出的不可燃物£粗略地礙碎成約H)職或1Gmm以;200424479 IX. Description of the invention: [Technical field to which the invention belongs]. The present invention relates to a method and a device for burning gasified slag, which are used to include municipal waste, industrial waste, and biological (Biomass ) Combustible materials such as waste are gasified, and the generated gas and coke (char) (solid carbon) are sent to a slag burner, and the gas and coke are burned in the slag burner under the general conditions of the south, and the The ashes dazzle into mol ten slag. * [Previous technology] In recent years, there is a waste treatment process that is gradually being adopted. It is used to gasify waste such as municipal waste, industrial waste, and biological and medical waste in a fluidized bed. In a fluidized-bed gasification furnace, it is gasified (pyrolyzing) in a low-pressure environment, and then the gas, coke and ash generated by the gasification process are introduced into a slag combustion furnace (ash melting furnace). Inside, and in the Lu Hai slag burning furnace, burn gas and coke at high temperature to refine ash. For example, in the conventional gasification slag combustion system (ash melting system), there is a fluidized bed gasification slag combustion furnace as proposed in Japanese Patent Publication No. 7-33264. According to the fluidized-bed gasification slag burner disclosed in the patent publication, because the temperature of the fluidized bed is relatively low, it can stably generate pyrolysis gas, and can stably supply pyrolysis residue to the vortex slag Because of the swirling-type slagging combustion furnace, very stable combustion conditions can be maintained in the vortex-type slagging combustion furnace. And because of this, the vortex slag burns 315742 6 200424479 φ 4 and maintains a stable temperature. This fluidized bed gasified fishery material combustion: a characteristic is that it can reduce the amount of fly ash because it can dissolve fly ash (nyash) in the generated gas into ′ -material. Furthermore, in the case where the gasification furnace system includes a fluidized bed gasification furnace, the incombustible material is discharged from the bottom of the gasification furnace together with a fluidized led (i.e., sand), and then borrowed. Seismic 1. ° (Vlbrating screen) separates the non-combustible material and the fluidized medium (f) from each other. Then, valuable metals are recovered from these incombustibles, that is, the iron is recovered from the incombustibles using a magnetic separator, and the aluminum is recovered from the incombustibles using a ㈣ separator. Then, the remaining non-combustibles are discharged as waste to the waste landfill. The amount of non-combustibles (residues) to be discharged to the waste landfill accounts for the amount of waste tea treatment (waste to be treated) The total supply of materials) is from 5 to 5% by weight. These non-combustible materials that have to be discarded have always hindered the reduction of the final treatment volume discharged to the outside of the gasified slag combustion system. Reduce the final processing capacity ', so a large amount of non-combustible materials are directly returned to the gasification furnace, but the non-combustible materials are still discharged from the bottom of the furnace in the original state. Therefore, the non-combustible materials are only in the system (gasification furnace, And non-combustible material discharge and recovery channels). Therefore, non-combustible materials are not discharged to the outside of the system, and the non-combustible materials that are circulated are gradually increased, leading to the failure of the gasification furnace. On the other hand, such as If a large amount of non-combustible materials are directly supplied to the slag burning furnace, a large amount of non-combustible materials will accumulate at 315742 7 ZUU4244 / y and be discharged smoothly. The bottom of the slag burning furnace makes the slag incapable [Inventive Content] The present invention is in view of The developer of the above-mentioned door i H ^ question and continuation point. The main purpose of the present invention is to provide a gasification method, which can be used to recognize the y 丨 a method and device can properly For example, non-combustible materials such as waste, non-combustible materials, and non-combustible materials discharged from the bottom of the gasification furnace ^ "," can be treated, and can reduce emissions to the whole, ... In the Yan section, Yaneng can operate stably. In order to achieve the above-mentioned purpose, in the present invention ^ ^ _ _ your unidentified brother ’s consistent behavior, provide m…, in the gas The gas can be gasified in the chemical furnace to generate gas; the gas produced by the gas enzymatic treatment is introduced into the slag burning furnace; the slag is fired at a high temperature in the furnace. Gas and scorching (solid carbon), and melting the generated Weng Yu by the wind Fly ash in the limbs; separation of the incombustibles discharged from the gasification part 2 and removal of mongolia from the separated incombustibles, crushing the incombustibles of the removed metal, and crushing the obstructions After crushing: the combustibles are supplied to the gasification furnace, the slag combustion furnace, or the duct for introducing the generated gas to the slag combustion furnace. According to the first embodiment of the present invention, the bottom of the gasification furnace The discharged incombustible material is separated, and then the metal is removed from the separated incombustible material, and then the incombustible material of the removed metal is broken to prevent fragmentation, and the broken incombustible material is stored, and then fixed by The stored non-combustible materials are discharged at a rate and sub-supplied to a gasification furnace, a slag burning furnace, or a pipe for introducing generated gas to the slag burning furnace. According to this, most of the non-combustible materials can be discharged from the bottom of the gasification furnace. The combustible material is melted into molten slag, which can reduce the final treatment amount discharged to the outside of the overall gasified slag combustion device, and can stably operate 315742 8 44/9 as the gasified slag combustion device. Rear,. According to a preferred embodiment of the present invention, the crushed incombustibles can be stored in a hopper after being crushed. Discharge ψΓ !! It is clear that a preferred embodiment can supply the fly ash recovered from the slag combustion furnace 5 # μ ^ gas and the crushed incombustibles to the gasification furnace Secret guide of each burner. Or it can be used to introduce the generated gas to the slag combustion: rate, ^ Therefore, can increase the overall gasification slag combustion device = "(Slagglng rate), and can reduce the fly ash discharged to the outside of the overall gasification slag combustion system According to a preferred embodiment of Kampong & Ming, the incombustible incombustible can be supplied at a fixed rate to a gasification furnace, a grate burner, or a duct, and a preferred embodiment according to the present invention. In this way, the incombustible smashed dish can be supplied to the gasification furnace, slag burning furnace, or duct at a catchable rate. According to a preferred embodiment of the present invention, it can be adjusted to be supplied to the gasification furnace for burning. The amount of incombustible matter that is blocked by the furnace or the duct will cause the temperature in the slag burning furnace to become above 200 ° C. According to a preferred embodiment of the present invention, the gasified slag burning device may include : Separating and sorting device for separating and discharging from the gasification furnace: Incombustibles' and removing metal from the separated non-combustibles; crushing device for crushing and separating from the separating and sorting device Remove the metal Combustible materials; and constant feeder, which stores the non-combustible materials that have been crushed after the incombustible materials that have been prevented from being broken, and supplies them to the gasification furnace, slag burner, or The duct for introducing the generated gas to the slag burning furnace. According to this, most of the incombustible materials discharged from 315742 9 200424479 == can be smashed into melted materials, and therefore can be: In the final treatment outside the slag burning device, 'Ya can stably operate the gasified slag burning device. Discharge ::: fat: a preferred embodiment of the implementation' can be used when the gas towel is discharged from the material burner = The gas is supplied to the gas furnace or the duct. 7 卞 · ,,, 70 In this embodiment, a fly ash recovery device can be provided, which is used to discharge the exhaust gas discharged from the side burner, and the recovery device. The recovered fly ash is supplied to the ash ', and the fly ash muscle can be passed to the milking furnace, the slag burning furnace, or the pipe from the -2 to the slag burning furnace. Therefore, the entire Γ milk body can be increased. Slag combustion | set the slag formation rate, and can reduce The amount of fly ash placed outside the integrated rolling slag combustion system. = In the second embodiment of the present invention, a kind of gasification crusher is provided. The lining includes a milking furnace for Gasification of combustibles to produce milk; slag burner to burn gas and f-carbon (solid carbon) produced by gasification treatment at high temperature and melt the fly ash in the generated gas; separation and selection It can be separated into non-flammable matter discharged from the bottom of the gasification furnace, and the metal can be removed from the separated incombustible matter; the crusher is configured to crush the removed incombustible matter; the supply device Is configured to supply the obstructed incombustible matter to a gasification furnace, a slag combustion furnace, or a duct for introducing generated gas to the slag combustion furnace. * According to a preferred embodiment of the present invention The gasified slag combustion device may further include: a hopper is configured to store the incombustible incombustible material after the incombustible material is obstructed. ] 〇 315742 200424479 —— According to a preferred embodiment of the present invention, the supply device may include a coupling rate feeder configured to supply crushed incombustibles at a fixed rate. .... According to a preferred embodiment of the present invention, the supply device may include a ... rate feeder configured to be able to supply the milled fuel at a variable rate. According to a preferred embodiment of the present invention, the supply device may include a regulating device configured to adjust the amount of crushed incombustibles supplied to the gasification furnace, the slag burning furnace, or the duct. , Pan Pan makes the temperature in the slag burner become above 1200 ° C. According to a preferred embodiment of the present invention, the gasified slag combustion device may further include a fly ash recovery device configured to recover fly ash from the exhaust gas discharged from the slag burner; and a fly ash supply device, which The system is configured so that the fly ash recovered by the fly ash recovery device can be supplied to a gasification furnace, a slag burner, or a duct. [Embodiment] Hereinafter, specific examples of the gasification slag combustion method and decoration device of the present invention will be described with reference to the drawings. Fig. 1 is a schematic diagram showing a gasification slag combustion apparatus for performing a gasification collapse combustion method according to a specific embodiment of the present invention. As shown in FIG. 1, the gasification slag combustion device includes a fluidized bed gasification furnace 10 and a collapse combustion furnace 11. The fluidized bed gasification furnace 10 is provided with a fluidized bed 10a. In the fluidized bed 10a, a fluidizing gas introduced from the bottom of the fluidized bed gasification furnace 10 is used. The fluidized medium of Siiica sand 315742 200424479 is fluidized. In the fluidized-bed gasification furnace 10, the combustibles 13 (for example, waste) supplied from the combustible material supply device 12 to the fluidized-bed gasification furnace 10 are gasified, and the products generated by the gasification process are gasified. The gas G1 is discharged from the gas outlet 10b. Furthermore, in the slag combustion furnace Π, the generated gas G1 discharged from the fluidized-bed gasification furnace 10 is introduced into the slag combustion furnace u from the gas inlet 11a, mixed with the air introduced therein, and combusted at a high temperature. The gas G1 _ and the coke (solid carbon) contained in the gas G1 are generated, and thus at a high temperature, they are dipped. The fly ash in the helium generated gas is turned into refining material A, and then the molten slag A is discharged from the slag discharge port lib to the outside of the system, and the combustion exhaust gas G2 is discharged from the gas outlet 1 lc. The incombustibles discharged from the bottom of the fluidized-bed gasification furnace 10, that is, with the fluidized medium, are discharged through the incombustibles discharge passage 14 connecting the bottom of the furnace body and the incombustibles discharger 15. Then, the incombustible material and the fluidized medium are discharged from the incombustible material discharger 15 and supplied to the vibration sifter 16. In the vibrating screen 16, the non-combustible material B and the fluidized medium (sand) c are provided to each other, and the non-combustible material B is supplied to a magnetic separator and a mass separator 17. On the other hand, the fluidized medium C is supplied to the fluidized medium conveyor (lifter) 18 and then returned to the fluidized bed 10a of the fluidized bed gasification furnace 10 via a screw feeder M. In the magnetic separator and radon separator 17, the valuable metal D such as iron or aluminum will be recovered from the supplied incombustibles. Specifically, iron is collected by the second machine, and Shao is recovered by the aluminum separator. The valuable metal D recovered from the magnetic separator 17 is discharged to the outside of the system 315742 200424479 Non-combustible materials E that are not valuable gold are stored in non-combustible materials, and ❿ stored in non-combustible material hopper 20 The non-combustible material E is discharged by a screw-type ejector (not shown, Γ ') at a fixed rate, for example, at the bottom of the hopper. The non-combustible material E is discharged from the temple by a chopper 21 (CrUsher) The object is roughly obstructed and broken into about H) or 1Gmm;

、尺寸再藉由辰動過篩器22,將會妨礙碾磨器24操作 :孟屬塊F予以移除。雖然也可不設置碾碎器2卜但較宜 =是設置該礙碎器21,以避免因為祕之不可燃物排出於 孟屬塊F側,而導致最終處理量增多。 s由礙碎H 21碾碎不可燃物£後,業已移除金屬塊F 的碾石卞不可燃物H即儲存於料斗23中。而儲存於料斗Μ 勺碾τ不可燃物η,則由例如位於料斗23底部之螺旋型 排出器的排出裝置23a,以岐速率排出。被排出的不可 。物Η即由輸送态供給至碾磨器24(mi 11),並在碾磨器24 中展磨成儀碎不可燃物I。然後,將礙碎不可燃物I由If the size and size of the sieve 22 are moved by Chen, the operation of the mill 24 will be impeded: the genus block F will be removed. Although the crusher 2 may not be provided, it is more appropriate to set the crusher 21 to avoid the increase in the final processing amount because the secret incombustibles are discharged on the F side of the Monarch block. After the noncombustible material is crushed by the impediment H21, the noncombustible material H of the stone crusher F from which the metal block F has been removed is stored in the hopper 23. The non-combustible material η stored in the hopper M scoop τ is discharged by the discharge device 23a of the spiral-type ejector located at the bottom of the hopper 23 at a different rate. Not discharged. The object is supplied to the mill 24 (mi 11) from the conveyed state, and is ground and crushed into an incombustible substance I in the mill 24. Then, the incombustible material

(pneumatic transportation mechanism) 24a予以氣力輸送,並儲存於料斗25中。碾磨器 括滾筒礙磨器(rQller miller)、球式碾磨機(baii miller)、桿式碾磨機(rod miller)或類似之機器。 從渣料燃燒爐11的氣體出口 Uc排出的燃燒排放氣體 G2即由抽風扇29抽至廢熱鋼爐(waste heat boiler) 26 ’並在廢熱鍋爐26中,進行燃燒排放氣體G2的熱能回 收。其後,使燃燒排放氣體G2通過空氣預熱器(air preheater) 27與袋狀過濾器(bag filter) 28,再經由 315742 13 200424479 30排放至大氣中。藉由分別配置於廢熱鍋爐u以及 二氣預熱裔27底部的螺旋輸送器26a以及螺旋輸送器 _ 27a’將聚積在廢熱鍋爐26以及空氣預熱氣27底部的飛灰 • J妓排出,亚藉由輸送線(conveyor line) 34將部份飛灰了 供給至流化床氣體化爐1〇,而將其餘飛灰】儲存於料斗犯 =。再者,被袋狀過濾器28捕捉到的燃燒排放氣體G2中 部份飛灰K,即藉由輸送線34供給至流化床氣體化爐, 春而其餘飛灰則儲存於料斗32中。 ,儲存於料斗32中的灰燼Μ則排出至系統外部,以進行 化學處理。因此,能夠避免重金屬凝集(heavy metal concentrate)等的問題。 儲存於料斗25中的碾碎不可燃物丨,即由位於料斗底 邛之啫如旋轉閥門(rotary valve)或旋轉送料器( feeder)的排出裝置25a,以固定速率排出,並將所排出 之不可燃物I供給至輸送線34。輸送線34係為用以供給 #軋灰L至流化床氣體化爐1 〇的輸送線,其中,飛灰L包括, 從廢熱鍋爐27與空氣預熱器28送來的灰燼】,以及從袋 狀過濾器28送來的飛灰}(的混合物。藉由供給該碾碎不可 燃物I至輸送線34,而將碾碎不可燃物I與飛灰L混合, 並將其供給至流化床氣體化爐10。可將輸送線34連接於 可燃物供應裝置12,而將碾碎不可燃物I與飛灰L的混合 物和可燃物一起供給至流化床氣體化爐1 〇中。 供給至流化床氣體化爐1 〇中的碾碎不可燃物I與飛灰 L·的混合物,和流化床氣體化爐10的生成氣體G1混合後, 315742 14 200424479 以氣力輪送方式,由流化床氣體化爐1〇分散地供給至渣料 燃燒爐11。然後,在渣料燃燒爐11中,將碾碎不可燃物I 與飛灰L的混合物熔化成熔化渣料a,並將熔化渣料A由 〉查料排放埠1 lb排出至系統外部。 1使排出裝置23a與排出裝置25a的旋轉速度可變, 俾以調節從料斗23排出之不可燃物的量,以及從料斗25 排出之不可燃物的量則更佳。以此配置,可依據操作條件, 適备地改變分別由料斗23、25排出之碾碎不可燃物Η的量 以及礙碎不可燃物I的量。 經媒磨器24碾磨後之碾碎不可燃物I的微粒尺寸較宜 不,於300pm。這是因為,當供給碾碎不可燃物!至流化 床=體化爐10後,具有此尺寸之碾碎不可燃物丨較能適當 地分散於氣體化爐所產生的氣體G1中,而輸送至渣料燃燒 爐11。 圖係顯示用以執行本發明 、 ▼ ,R N个奴% Μ刀一丹瓶例之 組化渣:斗燃燒方法的氣體化渣料燃燒裝置的概要圖。在 1圖與弟2圖中,將相似或相對應的組件標註以相似或4 對應的參考符號,並省略重複的描述。 於坌於弟2圖中的氣體化渣料燃燒裝置係不同於顯: =2氣體化渣料燃燒裝置。在第2圖之氣體 藉由位於料斗25底部之排出裝置^ ==Γ25排出,再將該礙碎不可燃物1供給』 =二=料斗32中。同時也將儲存於料斗3] 、 ’、/、給至料斗32中。將碾碎不可燃物j以石 3】5742 15 底部之d 中互相混合後,再藉由位於料斗32 率門或旋轉送料器的排出裝置,以固定速 再藉由鼓風機33,將所排出之不可燃物1和 ===合物L,經由輸送管35予以氣力輸送,並 =攸女置於潰料燃燒爐u之氣體入口 iia的吹氣喷嘴 中。、念士叫、1102216)36 ’將混合物l吹入渣料燃燒爐u 子人人,查料燃燒爐11中的料不可燃物I則在爐體中 並以如同第1圖所示之氣體化_燒裝置的相同 方式予以回收。 雖然在上述具體實施例中,係由安置於氣體入口 lla 的吹氣喷嘴36將不可燃物Ϊ與飛灰的混合物L供給 至渣料燃燒爐U中’然而,也可由安置於渣料燃燒爐u 頂端或渣料燃燒爐U上侧部份的吹氣喷嘴%供給該混合 物L 〇 由方、碾石+不可燃物I係具有高磨耗性質,因此輸送管 35,尤其是輸送管35的彎管部份,較宜由耐磨耗材料構 成,例如氧化鋁襯裏管(alumina lining pipe)。儲存於 料斗31中之部份灰燼M會被排放至系統外部,以進行化學 處理。因此,能夠避免重金屬凝集的問題。 雖然在上述具體實施例中,係將礙碎不可燃物I與飛 灰j及K供給至流化床氣體化爐1 〇或渣料燃燒爐1 1中, 然而’如第3圖所示,也可將用以輸送飛灰l的輸送管34 連接至用以將生成氣體G1由流化床氣體化爐1 〇 (未顯示) 導入渣料燃燒爐11的導管37上,並將不可燃物I與飛灰 315742 16 200424479 L的混合物供應至導管37,其中,飛灰[係包括,從料斗 2 5送來的不可燃物I,從廢熱鋼爐2 6與空氣預熱器2 7送 來的飛灰J,以及從袋狀過濾器28送來的飛灰κ的混合 物。再者,如第4圖所示,也可將不可燃物丨與飛灰】及-K的混合物L供給至用以將生成氣體G1由流化床氣體化爐· 1 〇 (未顯示)導入渣料燃燒爐11的導管37。 在上述具體實施例中,當供給碾碎不可燃物至氣體化 爐、渣料燃燒爐、或用以將生成氣體導入渣料燃燒爐的導 笞4,渣料燃燒爐中的溫度會稍微降低。因此,須將供給籲 至氣肢化爐、渣料燃燒爐、或導管中的碾碎不可燃物的量 予以调整,俾使渣料燃燒爐中的溫度可變成1200°C以上。 再者,當殘留於料斗中的碾碎不可燃物的量變多時,可調 節增加供給至氣體化爐、渣料燃燒爐、或導管中的碾碎不 了九、;物的里。反之,當殘留於料斗中的礙碎不可燃物的量 又夕日寸,可調節減少供給至氣體化爐、渣料燃燒爐、或導 管中的礙碎不可燃物的量。 為了要再循環利用(有效利用)渣料,渣料中所包含鲁 的有害金屬量(尤指鉛的凝集度)必須為一預定量以下。 具體而言,必須將鉛的凝集度維持於一預定值以下。最好 月匕夠將回收至氣體化爐、渣料燃燒爐、或導管中的飛灰量 予以凋},俾使母1公斤渣料(乾重(dry we丨士))的錯 凝集度為150mg以下,而較宜為100mg以下。還有,當黏 著於廢熱鍋爐的灰爐量增加時,灰燼會覆蓋鍋爐的整^熱 能轉換表面,因此會降低熱能轉換效率。為了防止熱能轉 315742 17 200424479 換效率降低,當得到數據指出黏著於銷爐熱能轉換表面的 灰爐增加時(例如,當執行週期性之檢查時,或當埶能轉 .$並未適當地進行,而_的排出氣體具有高心夺),則調 .節減少回收至氣體化爐、渣料燃燒爐、或導管中的飛灰量。 如上述,本發明提供下列三個絕佳優點: (1)由於會分離從氣體化爐排出的不可燃物,再從分離 後之不可燃物移除金屬,再將業已移除金屬的不可燃物予 籲以礙碎,再儲存礙碎後之不可燃物,然後以固定速率將所 儲存的不可燃物予以排出,並供給至氣體化爐、渣料燃燒 爐、或用以將生成氣體導入渣料燃燒爐的導管,因此,能 夠將大邛为從氣體化爐底部排出的不可燃物熔化為熔化渣 料,並能夠降低排放至整體氣體化渣料燃燒裝置外部的最 終處理量,並能夠穩定地操作氣體化渣料燃燒裝置。 (2) 由於會將由渣料燃燒爐排出之排放氣體中所回收 之飛灰,與礙碎不可燃物一起供給至氣體化爐、渣料燃燒 φ爐、或用以將生成氣體導入渣料燃燒爐的導管,因此,能 夠增加整體氣體化渣料燃燒裝置的成渣率,並能夠減少排 放至整體氣體化渣料燃燒系統外部的飛灰量。 (3) 氣體化渣料燃燒裝置係包含:分離及選別裝置,用 以分離由氣體化爐排出之不可燃物,並從分離後之不可燃 物中移除金屬;礙碎裝置,用以礙碎業已由分離及選別裝 置分離,並從中移除金屬的不可燃物;以及定速率送料器, 在儲存碾碎之不可燃物後,將該業已由碾碎裝置碾碎之不 可燃物’以固定速率供給至氣體化爐、渣料燃燒爐、或用 315742 18 200424479 以導入生成氣體至渣料燃燒爐的導管。因此,能夠將大部 分從氣體化爐底部排出的不可燃物熔化成熔化渣料,並因 此能夠減少排放至整體氣體化渣料燃燒裝置外部的最終處 理量’並能夠穩定地操作氣體化渣料燃燒裝置。 (4)由於設有飛灰回收裝置,俾從渣料燃燒爐排出之排 放氣體中回收飛灰,並將該等由飛灰回收裝置回收的飛灰 供給至氣體化爐、渣料燃燒爐、或用以將生成氣體導入渣 料燃燒爐的導管,因此,能夠增加整體氣體化渣料燃燒裝 置的成渣率,並能夠減少排放至整體氣體化渣料燃燒系統 外部的飛灰量。 雖然業已顯示以及詳細地描述本發明之特定較佳具體 只施例,但應瞭解,本發明仍可進行各種變化和改變,且 仍不會脫離本發明之申請專利範圍的範蜂。 ULk之可應用性 本發明適合應用於一種氣體化渣料燃燒系統,用以將 J汝都市廢棄物、工業廢棄物、和生物性廢棄物等可燃物 予以氣體化,並將所產生之氣體以及焦炭(固體碳)輸送 至渣料燃燒爐,並在渣料燃燒爐中,於高溫下燃燒該氣體 與焦炭,以及熔化灰燼。 【圖式簡單說明】 雕第1圖係顯示用以執行本發明的一個具體實施例之氣 體化渣料燃燒方法的氣體化渣料燃燒裝置的概要圖; 第2圖係顯示用以執行本發明的另一具體實施例之氣 體化渣料燃燒方法的氣體化渣料燃燒裝置的概要圖; 315742 19 200424479 弟3圖係顯示用 體化渣料燃燒方法的 圖;以及 以 氣 2订本發明的一個具體實施例之氣 &化/查料燃燒裝置之一部份的概要 具體實施例之氣 之一部份的概要 第4圖係顯示用以執 础/丨i μ订本發明的另一 月豆化渣料燃燒方法的氣體 圖。 巩版化渣料燃燒裝置 [元件符號說明] 10 流化床氣體化爐 10b 氣體出口 lla 氣體入口 llc 氣體出口 可燃物 15 17 10a 流化床 11 渣料燃燒爐 lib 渣料排放埠 12 可燃物供給裝置 14 不可燃物排出通道 16 震動過篩器 不可燃物排出器 磁選機暨鋁質分離 18 流化媒介物輪送器 19 螺桿送料器 21 碾碎機 23 料斗 24 礙磨機 25 料斗 26 廢熱鍋爐 27 空氣預熱器 28 袋狀過濾器 30 煙囪 20 不可燃物料斗 22 震動過篩器 23a 排出裝置 24a 氣力輪送機構 25a 排出骏置 26a 螺桿輪送器 27a 螺才干輪送器 29 抽風扇 31 Μ儿 200424479 32 料斗 33 鼓風機 34 輸送線 35 輸送管 36 吹氣喷嘴 37 導管 A 溶化渣料 B 不可燃物 C 砂子 D 金屬 E 不可燃物 F 金屬塊 G1 氣體 G2 燃燒排放氣體 H 不可燃物 I 不可燃物 J、 K、L飛灰 Μ 灰燼 21 315742(pneumatic transportation mechanism) 24a is pneumatically transported and stored in a hopper 25. Mills include rQller mills, baii mills, rod mills or similar machines. The combustion exhaust gas G2 exhausted from the gas outlet Uc of the slag combustion furnace 11 is evacuated to the waste heat boiler 26 'by the exhaust fan 29, and the thermal energy of the combustion exhaust gas G2 is recovered in the waste heat boiler 26. Thereafter, the combustion exhaust gas G2 is passed through an air preheater 27 and a bag filter 28, and then discharged into the atmosphere through 315742 13 200424479 30. The fly ash accumulated at the bottom of the waste heat boiler 26 and the air preheating gas 27 is screwed by the screw conveyor 26a and the screw conveyor _ 27a 'disposed at the bottom of the waste heat boiler u and the two gas preheating source 27, respectively. A part of the fly ash is supplied to the fluidized bed gasification furnace 10 through a conveyor line 34, and the remaining fly ash is stored in a hopper. Furthermore, a part of the fly ash K in the combustion exhaust gas G2 captured by the bag filter 28 is supplied to the fluidized-bed gasification furnace through the transfer line 34, and the remaining fly ash is stored in the hopper 32. The ash M stored in the hopper 32 is discharged to the outside of the system for chemical treatment. Therefore, problems such as heavy metal concentrate can be avoided. The crushed incombustibles stored in the hopper 25 are discharged at a fixed rate by a discharge device 25a such as a rotary valve or a feeder at the bottom of the hopper, and the discharged The incombustible material I is supplied to the transport line 34. The conveying line 34 is a conveying line for supplying #rolled ash L to the fluidized bed gasification furnace 10, in which the fly ash L includes ash sent from the waste heat boiler 27 and the air preheater 28, and from The fly ash} (mixture of fly ash) sent from the bag filter 28. By supplying the crushed incombustible material I to the transfer line 34, the crushed incombustible material I and the fly ash L are mixed and supplied to the stream. The fluidized bed gasification furnace 10. The conveying line 34 may be connected to the combustible material supply device 12, and the mixture of the crushed incombustible material I and the fly ash L and the combustible material are supplied to the fluidized bed gasification furnace 100. The mixture of the crushed incombustible material I and the fly ash L · supplied to the fluidized-bed gasification furnace 10 is mixed with the generated gas G1 of the fluidized-bed gasification furnace 10, and 315742 14 200424479 is pneumatically rotated. The fluidized bed gasification furnace 10 is distributedly supplied to the slag burner 11. Then, in the slag burner 11, a mixture of the crushed incombustible material I and the fly ash L is melted into a molten slag a, and The molten slag A is discharged to the outside of the system from the material discharge port 1 lb. 1 Make the rotation of the discharge device 23a and the discharge device 25a The rotation speed is variable, so as to adjust the amount of non-combustible materials discharged from the hopper 23 and the amount of non-combustible materials discharged from the hopper 25 is better. With this configuration, the hoppers can be appropriately changed according to the operating conditions. The amount of crushed non-combustible material plutonium discharged from 23 and 25 and the amount of crushed non-combustible material I. The particle size of the crushed non-combustible material I milled by the media mill 24 is preferably not more than 300pm. This is Because when the crushed non-combustible material is supplied! After the fluidized bed = the solidification furnace 10, the crushed non-combustible material of this size can be more appropriately dispersed in the gas G1 generated by the gasification furnace and transported to Slag burning furnace 11. The figure shows a schematic diagram of a gasified slag burning device for the slag: bucket burning method used to implement the present invention. In the second figure, similar or corresponding components are marked with similar or corresponding reference symbols, and repeated descriptions are omitted. The gasification slag burning device of Yu Yiyu in the second figure is different from the obvious: = 2 gas Slag burning device. The gas in Figure 2 is discharged through the bottom of the hopper 25. The device ^ == Γ25 is discharged, and the obstructed incombustible material 1 is supplied again. === hopper 32. At the same time, it will be stored in hopper 3], ', /, and fed to hopper 32. The incombustibles will be crushed. JYishi 3] 5742 15 After mixing with each other in d at the bottom, the incombustible materials 1 and = discharged by the blower 33 at a fixed speed and then by the blower 33 are discharged by the discharge device located on the hopper 32 rate door or the rotary feeder. == Compound L, which is pneumatically conveyed through the conveying pipe 35, and is placed in the blowing nozzle of the gas inlet iia of the crushing combustion furnace u., Nancer, 1102216) 36 'Blow the mixture l into the slag The material combustion furnace u is for everyone, and the material incombustible materials I in the material combustion furnace 11 are recovered in the furnace body in the same manner as the gasification-burning device shown in FIG. 1. Although in the specific embodiment described above, the mixture L of incombustible matter and fly ash is supplied to the slag burner U by the blowing nozzle 36 provided at the gas inlet 11a, however, it can also be installed in the slag burner U u The air blowing nozzle at the top or the upper part of the slag burner U supplies the mixture L. The square, stone milling + incombustible material I has high abrasion properties, so the conveying pipe 35, especially the bend of the conveying pipe 35 The pipe part is preferably composed of abrasion-resistant materials, such as alumina lining pipe. A part of the ash M stored in the hopper 31 is discharged to the outside of the system for chemical treatment. Therefore, the problem of agglomeration of heavy metals can be avoided. Although in the above specific embodiment, the incombustible incombustible material I and the fly ash j and K are supplied to the fluidized bed gasification furnace 10 or the slag combustion furnace 11 1, however, as shown in FIG. 3, The conveying pipe 34 for conveying the fly ash 1 may also be connected to the duct 37 for introducing the generated gas G1 from the fluidized-bed gasification furnace 10 (not shown) to the slag combustion furnace 11 and incombustible materials. The mixture of I and fly ash 315742 16 200424479 L was supplied to the duct 37, where the fly ash [includes the incombustible material I sent from the hopper 25, and the waste heat steel furnace 26 and the air preheater 27. Of fly ash J, and a mixture of fly ash κ sent from a bag filter 28. In addition, as shown in FIG. 4, a mixture L of incombustible matter and fly ash] and -K may be supplied to introduce the generated gas G1 from a fluidized bed gasifier · 10 (not shown). Guide tube 37 of the slag burning furnace 11. In the above specific embodiment, when crushed incombustibles are supplied to a gasification furnace, a slag burning furnace, or a guide 4 for introducing generated gas to the slag burning furnace, the temperature in the slag burning furnace is slightly reduced. . Therefore, the amount of crushed incombustible matter supplied to the gasification furnace, slag burning furnace, or duct must be adjusted so that the temperature in the slag burning furnace can become above 1200 ° C. Furthermore, when the amount of crushed incombustible materials remaining in the hopper becomes large, the supply to the gasification furnace, the slag burner, or the crushed material in the duct cannot be increased. Conversely, when the amount of incombustible incombustible matter remaining in the hopper is increased, the amount of incombustible incombustible matter supplied to the gasification furnace, slag burner, or duct can be adjusted to be reduced. In order to recycle (use effectively) the slag, the amount of harmful metals (especially the degree of agglomeration of lead) contained in the slag must be less than a predetermined amount. Specifically, the degree of aggregation of lead must be maintained below a predetermined value. It is best if the amount of fly ash recovered in the gasification furnace, slag burning furnace, or duct is reduced, so that the misaggregation degree of the mother 1 kg of slag (dry weight) is 150 mg or less, and more preferably 100 mg or less. In addition, when the amount of ash stoves adhered to the waste heat boiler is increased, the ash will cover the entire surface of the boiler's thermal energy conversion, thus reducing the thermal energy conversion efficiency. In order to prevent the reduction of heat transfer efficiency, 315742 17 200424479, when the data obtained indicates that the number of ash stoves that are attached to the heat transfer surface of the pin furnace is increased (for example, when performing periodic inspections, or when the energy conversion is not performed properly. $ Is not performed properly , And the exhaust gas has a high concentration), it is adjusted to reduce the amount of fly ash recovered to the gasifier, slag burner, or duct. As described above, the present invention provides the following three excellent advantages: (1) Since the non-combustible materials discharged from the gasification furnace are separated, the metal is removed from the separated non-combustible materials, and the non-combustible materials that have been removed are removed. The material is called to prevent fragmentation, and then the non-combustible material is stored after the fragmentation, and then the stored non-combustible material is discharged at a fixed rate and supplied to a gasification furnace, a slag combustion furnace, or used to introduce generated gas into the furnace. The duct of the slag burning furnace can therefore melt the incombustibles discharged from the bottom of the gasification furnace into molten slag, and can reduce the final treatment amount discharged to the outside of the overall gasification slag burning device, and can Stable operation of gasified slag burning device. (2) The fly ash recovered from the exhaust gas discharged from the slag combustion furnace will be supplied to the gasification furnace, the slag combustion φ furnace, or used to introduce the generated gas into the slag combustion together with the incombustible materials that are blocked. The furnace duct can therefore increase the slag formation rate of the overall gasified slag combustion device and reduce the amount of fly ash discharged to the outside of the overall gasified slag combustion system. (3) The gasification slag burning device includes: separation and selection devices for separating non-combustible materials discharged from the gasification furnace and removing metals from the separated non-combustible materials; The crushed material has been separated by separation and sorting equipment and the metal incombustibles have been removed therefrom; and the fixed-rate feeder has stored the crushed incombustibles and stores the crushed incombustibles by the crushing device 'to Feed at a fixed rate to a gasification furnace, a slag burner, or a conduit for introducing generated gas to the slag burner using 315742 18 200424479. Therefore, most of the incombustibles discharged from the bottom of the gasification furnace can be melted into molten slag, and thus the final treatment amount discharged to the outside of the overall gasification slag combustion device can be reduced, and the gasification slag can be stably operated. Burning device. (4) Due to the fly ash recovery device, the fly ash is recovered from the exhaust gas discharged from the slag burner, and the fly ash recovered by the fly ash recovery device is supplied to the gasification furnace, the slag burner, Or the duct used to introduce the generated gas into the slag combustion furnace. Therefore, the slag formation rate of the overall gasified slag combustion device can be increased, and the amount of fly ash discharged to the outside of the overall gasified slag combustion system can be reduced. Although specific preferred embodiments of the present invention have been shown and described in detail, it should be understood that the present invention can be modified and modified without departing from the scope of the present invention. Applicability of ULk The present invention is suitable for a gasification slag combustion system for gasifying combustible materials such as urban waste, industrial waste, and biological waste, and the generated gas and Coke (solid carbon) is sent to a slag burner, where the gas and coke are burned at high temperature, and ash is melted in the slag burner. [Brief description of the figure] Fig. 1 is a schematic diagram showing a gasification slag combustion device for performing a gasification slag combustion method according to a specific embodiment of the present invention; and Fig. 2 is a view showing the implementation of the present invention. 315742 19 200424479 Figure 3 is a diagram showing a method for burning bulk gasified slag; according to another specific embodiment of the gasified gas burning method; Summary of a part of the gas & chemical / combustion device of a specific embodiment. Outline of a part of the gas of a specific embodiment. FIG. 4 shows another example for implementing the present invention. Gas diagram of the burning method of Crumble slag. Scorching slag combustion device [Description of component symbols] 10 Fluidized bed gasification furnace 10b Gas outlet 11a Gas inlet 11c Gas outlet combustible 15 17 10a Fluidized bed 11 Slag burner lib Slag discharge port 12 Fuel supply Device 14 Non-combustible material discharge channel 16 Vibration sifter Non-combustible material discharger Magnetic separator and aluminum separation 18 Fluidized medium wheel feeder 19 Screw feeder 21 Crusher 23 Hopper 24 Grinder 25 Hopper 26 Waste heat boiler 27 Air preheater 28 Bag filter 30 Chimney 20 Non-combustible material hopper 22 Vibration sifter 23a Discharge device 24a Pneumatic rotary mechanism 25a Discharge unit 26a Screw screw 27a Screw fan 29 Vacuum fan 31 Μ 20042004479 32 Hopper 33 Blower 34 Conveyor 35 Conveyor 36 Blowing nozzle 37 Conduit A Dissolved slag B Non-combustible material C Sand D Metal E Non-combustible material F Metal block G1 Gas G2 Combustion exhaust gas H Non-combustible material I Non-combustible Objects J, K, L fly ash M ashes 21 315742

Claims (1)

200424479 十、申請專利範圍: 1. 一種氣體化渣料燃燒方法,包括·· 在氣體化爐中氣體化可燃物,以產生氣體; 將由氣體化處理產生的氣體導入渣料燃燒焯 内; i 在該渣料燃燒爐中,以高溫燃燒該生成氣體盥隹 炭(固體碳),並熔化該生成氣體中的灰燼; “、、 ▲將從該氣體化爐排出的不可燃物予以分離,並從 遠分離後之不可燃物中移除金屬;以及 2. 將該業已移除金屬的不可燃物予以碾碎,並將, 碾碎後之不可燃物供給至該氣體化爐、該渣料燃燒Z 爐、或用以將該生成氣體導入該渣料燃 ; 如申請專利範圍第i項之氣體化逢料燃燒方二 二^碾碎何㈣後,將該料之不可燃物儲存於 料斗中。 如申請專利範圍第i項之氣體化渣料燃燒方法,其 ’係以1D定速率將該礙碎之不可燃物供給至該氣體 4· 化爐、該渣料燃燒爐、或該導管。 〃 =申請專利範圍第1項之氣體化渣料燃燒方法,其 ,係以可變速率將該礙碎之不可燃物供給至該氣體 化爐、該渣料燃燒爐、或該導管。 /'且 ,申請專利範圍第1項之氣體化渣料燃燒方法,其 ,將供給至該氣體化爐、該渣料燃燒爐、或該導、 的碾碎不可燃物的量予以調整 、 的溢度變成議t:以上。卑使邊;查料燃燒爐中 315742 22 5· 中申4專利範圍第1項之氣體化渣料燃燒方法,其 太,’將從該渣料燃燒爐排出之排放氣體中回收的飛 7·〜供給至该氣體化爐、該渣料燃燒爐、或該導管。 •〜種氣體化渣料燃燒裝置,包括: 氣肽化爐,用以氣體化可燃物,以產生氣體; 髀纟渣料燃燒爐,以咼溫燃燒由氣體化處理產生的氣 k與焦炭(固體碳),並炼化該生成氣體中的飛灰; 分離及選別裝置,配置成可分離由該氣體化爐排 屬.、不可燃物,並從該分離後之不可燃物中移除金 碾碎機,配置成可將業已移除金屬之不可燃物 以碾碎;以及 i、釔裝置,配置成可將該礙碎後的不可燃物供給 至該氣體化爐、該;查料燃燒爐、或帛卩導入該生成^ 體至該渣料燃燒爐的導管。 a 8. 如申請專利範圍第7項之氣體化渣料燃燒裝置,復包 括: 料斗,配置成在不可燃物被碾碎後,可儲存該 碎之不可燃物。 ^ 9. 如申請專利範圍第7項之氣體化渣料燃燒裝置,其 中,該供應襄置係包括定速率送才斗器,酉己置成可用固 定速率供給该礙碎之不可燃物。 1〇.如'請專利範圍第7項之氣體化渣料燃燒裝置,其 中’該供應裳置係包括變速率送料器,配置成可用可 變速率供給該碾碎之不可燃物。 315742 23 200424479 11·如申^專利範圍第7項之氣體化渣料燃燒裝置,其 二该供應裝置係包括調節裝置,配置成可對供給至 • I氣,化爐、該渣料燃燒爐、或該導管的碾碎不可燃 物的1進行調整,俾使該渣料燃燒爐中的溫 • 1200Ϊ以上。 义取 •士申明專利範圍第7項之氣體化渣料燃燒裳置,復包 括: 飛灰回收裝置,配置成可從該渣料燃燒爐排出之 _ 排放氣體中回收飛灰;以及 飛灰供給裝置,配置成可將由該飛灰回收裝置回 收的飛灰供給至該氣體化爐、該渣料燃燒爐或該導 管。 24 315742200424479 10. Scope of patent application: 1. A method for burning gasified slag, which includes: gasifying combustible materials in a gasification furnace to generate gas; introducing the gas generated by gasification treatment into the slag combustion furnace; i in In the slag combustion furnace, the generated gas is heated at high temperature (solid carbon), and the ash in the generated gas is melted; ",, ▲ The incombustibles discharged from the gasification furnace are separated and separated from Remove the metal from the non-combustible material after the separation; and 2. crush the non-combustible material from which the metal has been removed, and supply the crushed non-combustible material to the gasification furnace and burn the slag Z furnace, or used to introduce the generated gas into the slag for combustion; for example, the gasification of the application scope of the patent application item i. Combustion method 22 ^ After crushing He Zhi, store the incombustible material in the hopper If the gasification slag combustion method of item i in the scope of the patent application is applied, it is to supply the obstructed incombustible matter to the gas furnace, the slag combustion furnace, or the duct at a constant rate of 1D. 〃 = patent application The gasification slag combustion method surrounding item 1, which supplies the obstructed incombustible matter to the gasification furnace, the slag combustion furnace, or the duct at a variable rate. The gaseous slag combustion method of the first item in the scope, which adjusts the amount of crushed incombustibles supplied to the gasification furnace, the slag combustion furnace, or the guide, and the degree of overflow becomes negotiable t: The above is the ambassador side; the material burning furnace 315742 22 5 · Zhongshen 4 patent scope item 1 of the gasification slag burning method, which is too, 'the fly recovered from the exhaust gas discharged from the slag burning furnace 7 · ~ Supply to the gasification furnace, the slag burning furnace, or the duct. • ~ A gasification slag burning device including: a gas peptide furnace for gasifying combustible materials to generate gas; 髀 纟The slag burner burns the gas k and coke (solid carbon) produced by the gasification process at a high temperature, and refines the fly ash in the generated gas; The separation and selection device is configured to be separable from the gasification grate Belong to, non-combustible, and separated from the non-combustible The gold removing crusher is configured to crush the incombustibles from which the metal has been removed; and i, yttrium devices are configured to supply the obstructed incombustibles to the gasification furnace, the; Material combustion furnace, or a duct that introduces the produced body to the slag combustion furnace. A 8. If the gasification slag combustion device of item 7 of the patent application scope, further includes: a hopper, configured to be incombustible After being crushed, the crushed incombustibles can be stored. ^ 9. If the gasification slag burning device of item 7 of the patent application scope, wherein the supply system includes a fixed-rate feeder, The incombustible incombustible material can be supplied at a fixed rate. 10. If the gasification slag burning device of item 7, please include a variable rate feeder, which is configured to be variable. Rate feeds the crushed incombustible. 315742 23 200424479 11 · The gasification slag combustion device of item 7 in the scope of the patent application of Rushen, the second is that the supply device includes a regulating device configured to supply gas to the I gas, the chemical furnace, the slag combustion furnace, Or adjust 1 of the crushed incombustibles of the duct to make the temperature in the slag burner above 1200Ϊ. Yoshito • declares that the gasification slag combustion installation in item 7 of the patent scope includes: a fly ash recovery device configured to recover fly ash from the _ exhaust gas discharged from the slag burner; and fly ash supply A device configured to supply the fly ash recovered by the fly ash recovery device to the gasification furnace, the slag burner, or the duct. 24 315742
TW93110469A 2003-04-16 2004-04-15 Gasification and slagging combustion method and apparatus TW200424479A (en)

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