TWI290957B - Fuel mixture for supply in tuyeres when producing pig iron in the blast furnace and method and plant for the production and supply of the fuel mixture - Google Patents

Fuel mixture for supply in tuyeres when producing pig iron in the blast furnace and method and plant for the production and supply of the fuel mixture Download PDF

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Publication number
TWI290957B
TWI290957B TW093112106A TW93112106A TWI290957B TW I290957 B TWI290957 B TW I290957B TW 093112106 A TW093112106 A TW 093112106A TW 93112106 A TW93112106 A TW 93112106A TW I290957 B TWI290957 B TW I290957B
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Taiwan
Prior art keywords
mixture
fuel
coal
sheet
supply
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TW093112106A
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Chinese (zh)
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TW200508399A (en
Inventor
Holger Wulfert
Walter Hartig
Rong-Shan Lin
Horst Zewe
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Loesche Gmbh
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    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B5/00Making pig-iron in the blast furnace
    • C21B5/001Injecting additional fuel or reducing agents
    • C21B5/003Injection of pulverulent coal

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Combustion Of Fluid Fuel (AREA)

Abstract

The invention relates to a fuel system for supply in tuyeres during pig iron production in the blast furnace, as well as to a method and apparatuses for the production and supply of the fuel system. In order to optimize pig iron production in blast furnaces, according to the invention, a fuel system is provided for injection via tuyeres, for instance using the PCI process, and enabling production to take place in an extremely simple and rational manner. In particular, the fuel system consists of a ready-to-inject coal dust-scale mixture, produced by joint pulverization, particularly in a vertical roller mill. In addition to an improvement to the blast furnace process, an extremely efficient exploitation of in particular oil-contaminated scale materials occurring in rolling processes is made possible.

Description

.?多^月7日修(影正替换頁: ‘、發明說日『Γ~~』 【發明所屬之技術領域】 本項發明是有關一種依據申請專利範圍第i項之前言 之在向爐中製造生鐵時用於供給在鼓風口中的燃料系統, 一種依據申請專利範圍第8項之俞言之用於該燃料系統之 製造和供給的方法,以及_種依據申請專利範圍第u項 之刖a之用於該燃料系統之製造和供給的設備。 、 【先前技術】 在南爐中製造生鐵之過程,為了要減少焦炭的消耗量 已知疋可以將熱風吹入經過位於爐腹下側部位處的鼓風 口 ’更進-步還原和加熱例如是煤粉、油料或天然氣等 料,其方法則是採用加工煤粉所需的PCI (粉碎煤炭注入 )程序。 在2〇02年5月發行之Paul Wurth S.A.公司之掉題為 料煤炭注人“,,的產品型錄中,描述了—種用於製造增 ^的私碎βχ備’以及在高爐鼓風σ中採用粉碎煤炭注入卷 序而用於氣壓供應媒粉的分配和供給系統。 專利編號W0 99/64636中描述了一種加工 連同備化劑添加物—起準備的煤 入二 …去…入 素之化合物的水溶液所組成, ::素成份包含有:錯、翻、鶴、鐘、鐵、銘、鋅、銅 或銘、錫或錯,而且特別硫酸銅溶液。 在2000年2月發行之,,鋼鐵技術 1290断 ;:τ) 上加工程序的更進一步描述内容被提供。經由鼓風口而被 供給用來替換一部份焦炭之煤粉的粒徑是小於丨mm和含水 量小於3% ,而且,每一公噸煤炭會被供給35〇亳升到 600亳升的催化劑溶液。供應結果的產生係藉由一個被安 置於一粗煤炭圓筒倉下游和一 MPS輾粉機上游的獨立裝置 之作用,粗煤炭是以噴灑催化劑溶液而被準備。不利之處 為此喷灑裝置必須要符合能夠克服催化劑溶液之腐蝕特= 的特定需求,而且亦必須具有一潔淨系統來定期清理喷嘴 〇 專利編號DE 1()〇5〇332 A1描述了一種用於準備製造 生鐵所需之燃料(特別是煤粉)的方法和裝置,其中係採 用-包含有錦的催化劑與有機鐵鹽和/或無機酸,並且能夠 P牛低點火溫度和加速辦燒 ^ L 心於疋,加,快殘留焦炭的燃燒。 虽粗煤炭被粉碎成為煤粉時,焊 溶液中。例如是- L0ESCHP】/皮#備於一催化劑水 里氣掃式滾子轆粉機之碎煤 枝必須被配置有相對應的供給 4八,^ ^ 1 I /鹿衷置,用以準備該煤 、。為了要能夠有效地弄溼焊 旦、日丨~ 係厌粒子,設備中亦必須具有 里測和調節裝置,此量測和 八有 整髀门印忒置本身則必須被結合至 正體叔碎,又備的調節與安 的投資和成本。 I巾於疋’額外增加所需 【發明内容】 本項發明之目的是在提供 作用來供給的燃料系統, 糟H支風口之 燃料系統的方法與設備 ’、用於製造和供給該 4而传到最佳的生鐵生產量和提 1290957 供之燃料系統,以及改善燃燒性能與將高爐的加工 以最佳化。 上述之目標的完成係藉由如申請專利範圍第1項之 料系統、如申請專利範圍第8項方法和如申請專利範第、 項之設備的作用。 本項發明是依據下列之基本理論:依據翁碎煤炭注入 的程序,燃料系統是採用至少一碳運送介質與一預先還 鐵材料之此合物,並且將該混合物連同熱風和/或氧氣一起 供應至採用鼓風口的高爐内。 固態、液態和氣態碳運送介質,連同其懸浮液均可以 破用來作為碳運送介質, 劑。固…、二 質亦可以被稱為還原 固悲…介質是可以由煤炭(例如是坑煤),以及 ==立狀煤、煤炭混合物、煤炭—焦炭混合物和塑膠所 24、’上述之塑膠例如是塑膠_煤炭混合物或塑膠一 ,料懸汗液的型式,液態碳運拉, 名处山_ 貝J丄式為油料,而且 例如是天然氣的型式,同時,該液態碳運 從鼓風口被供給至高爐内。 了預“^尺寸而 1採用一燃料系統或是包含有固態碳運送介質(例 。疋煤炭或煤炭與石油焦炭之、 ,猫止m u y 系統燃料,同時 、還原鐵材料是由薄片或爐渣材料(例 或滾子輾乳薄片)所組成。 】如疋輾軋薄片 内生處是依照本項發明,混合物是在一操粉機 特別疋—種具有整合式篩子的滾子輾m如 12901 是在—種LOESCHE型之氣掃式滾子輾粉機中,另外,還 有一整合式粉碎加工程序、一粉碎乾燥加工程序,並且該 混合物是能夠以一可預設粒徑尺寸而被供給至鼓風口内。μ j論上,碳運送介質或是燃料粗材料和薄片材料是可 以在一適宜的輾粉機或粉碎系統内分別被加以粉碎,並且 以一更加特別之可調整混和比例而一起被供給至高爐鼓風 口内,或是亦可個別被供給至高爐鼓風口内。然而,其中 以是採用-整合式粉碎筛選加工程序(例如是在—氣掃 滾子輾粉機内)為特別有效和較適宜。 、" 二知-煤粉-薄片混合物…薄片的比例是 約而〇.5%肖55%之間,以是介於Μ與15%之間為較適宜 以粉合物是能夠被非常合理與有效地加 的焦炭量。^改。在南爐内的燃燒性能和減少未燃燒 2於煤炭的正常燃燒與已知的粉碎煤炭注 Π :?燒則會明顯被…特別是被煤粉的注丄 :::::的:::::導致。另外一項有利之處為當煤 少量礦石和減;能夠使得系統僅需要使用較 外,亦已知^ 貝生鐵所需供給的還原劑量。另 ,使得氧^ 粉㈣特混合結果將會降低火焰溫度 Π!物和爐心表面容量能夠被增加。 依,、?、本項發明 —— 和有效使用該薄片材料:特:::混合:的優點是能夠合理 加工程序和且他ϊ§ / 、疋以相®大的數量而於輾軋 ”他類似加卫程序中製造出該輾乳薄片。此薄 9 1290957 片基本上是於一鋼鐵表面上施行熱成形和熱處理作用所產 生:氧化鐵(n、m) (Fe3〇4=Fe0.Fe2〇3),而且該薄 片還具有下列成份的混合物,這些成份例如是氧化鈣Ca〇 、二氧化矽Si〇2、氧化鋁Al2〇3、氧化鈉Na2〇、氧化錳.? Multi-month 7-day repair (shadow replacement page: ', invention day "Γ~~" [Technical field of invention] This invention relates to a furnace according to the i-term of the patent application scope a fuel system for supplying to a tuyere when manufacturing pig iron, a method for manufacturing and supplying the fuel system according to claim 8 of the patent application scope, and a method according to item u of the patent application scope Equipment for the manufacture and supply of the fuel system. [Prior Art] In the process of manufacturing pig iron in the south furnace, in order to reduce the consumption of coke, it is known that hot air can be blown through the lower side of the furnace belly. The blaster's step-by-step reduction and heating are, for example, pulverized coal, oil or natural gas, in the same way as the PCI (crushing coal injection) process required to process pulverized coal. Issued in May 2002 Paul Wurth SA's title is "The coal injection", in the product catalogue, describes a kind of privately-produced beta preparation used to make the increase and the use of crushed coal injection in the blast furnace blast σ For air pressure Dispensing and supply system for the granules. Patent No. WO 99/64636 describes a process consisting of an aqueous solution of a compound with a preparation of a preparation for the preparation of coal into a second, ... : wrong, turn, crane, bell, iron, Ming, zinc, copper or Ming, tin or wrong, and special copper sulfate solution. Issued in February 2000, steel technology 1290 break;: τ) on the processing program Further description is provided. The particle size of the pulverized coal supplied to replace a part of coke via the tuyere is less than 丨mm and the water content is less than 3%, and each metric ton of coal is supplied 35 liters. Up to 600 liters of catalyst solution. The supply results were produced by a separate unit placed downstream of a coarse coal silo and upstream of an MPS pulverizer, which was prepared by spraying a catalyst solution. The disadvantage is that the spray device must meet the specific requirements of overcoming the corrosion of the catalyst solution, and must also have a clean system to clean the nozzle regularly. Patent No. DE 1()〇5〇332 A1 A method and apparatus for preparing a fuel (especially pulverized coal) required for the production of pig iron, wherein a catalyst comprising a bromine and an organic iron salt and/or a mineral acid is used, and the P-low ignition temperature and acceleration are enabled Burning ^ L heart in the sputum, adding, fast residual coke burning. Although the coarse coal is pulverized into pulverized coal, in the welding solution. For example - L0ESCHP] / skin # prepared in a catalyst water gas sweeping roller 辘The crushed coal branch of the powder machine must be configured with a corresponding supply of 4, ^ ^ 1 I / Lucheng, to prepare the coal. In order to effectively wet the weld, the sundew ~ the anaplastic particles, The equipment must also have a measuring and regulating device. The measurement and the eight-in-one door printing device itself must be combined with the normal body and the replacement and safety investment and cost. I need to add extra requirements. [Inventive content] The object of the present invention is to provide a fuel system for supplying fuel system, a method and a device for a fuel system of a ventilator, for manufacturing and supplying the To the best pig iron production and fuel system for 1290957, as well as to improve combustion performance and optimize the processing of the blast furnace. The accomplishment of the above-mentioned objectives is achieved by the material system as claimed in claim 1, the method of claim 8 and the device as claimed in the patent application. The present invention is based on the following basic theory: according to the procedure for injecting coal into a coal system, the fuel system is a mixture of at least one carbon transport medium and a pre-returned iron material, and the mixture is supplied together with hot air and/or oxygen. To the blast furnace with the air vent. Solid, liquid and gaseous carbon transport media, together with their suspensions, can be used as a carbon transport medium. Solid ..., the second quality can also be called reduction solids ... medium can be from coal (such as pit coal), and = = vertical coal, coal mixture, coal - coke mixture and plastics 24, 'the above plastics, for example It is a plastic_coal mixture or plastic one, the type of suspended sweat, liquid carbon transport, the name of the mountain _ shell J 丄 is oil, and for example, the type of natural gas, at the same time, the liquid carbon transport is supplied from the blast opening Inside the blast furnace. The pre-"size"1 uses a fuel system or contains a solid carbon transport medium (eg, coal or coal and petroleum coke, the cat's muy system fuel, while the reduced iron material is made of flake or slag material ( For example, the rolled sheet is made in accordance with the invention, and the mixture is specially made in a powder machine. The roller with an integrated sieve, such as 12901, is In the LOESCHE type air-sweeping roller powder rolling machine, in addition, there is an integrated pulverizing processing program, a pulverizing drying processing program, and the mixture can be supplied to the blast at a preset particle size. In the mouth, the carbon transport medium or the fuel crude material and the sheet material can be separately pulverized in a suitable powder mill or pulverizing system, and supplied together in a more specific adjustable mixing ratio. Into the blast furnace tuyere, or can be individually supplied to the blast furnace tuyere. However, the use of - integrated smash screening processing procedures (for example, in-gas sweep roller powder machine Internal) is particularly effective and suitable. , "Two know - pulverized coal - flake mixture ... sheet ratio is about 〇 5% 5% 55% between, so it is more suitable between Μ and 15% The powder is the amount of coke that can be added very reasonably and effectively. The combustion performance in the south furnace and the reduction of unburned 2 in the normal combustion of coal with the known crushed coal injection: Obviously caused by... especially by the injection of pulverized coal::::::::::. Another advantage is that when coal is small ore and reduced; it can make the system only need to be used, it is also known ^ The reduction dose required for the cast iron. In addition, the special mixing result of the oxygen powder (4) will reduce the flame temperature. The surface capacity of the material and the core can be increased. According to , , , and the invention - and effective use The sheet material: special:::mixed: has the advantage of being able to process the process reasonably and that he/#, 疋 疋 相 大 大 ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” Thin 9 1290957 The film is basically produced by thermoforming and heat treatment on a steel surface. Iron oxide (n, m) (Fe3〇4=Fe0.Fe2〇3), and the sheet also has a mixture of the following components, such as calcium oxide Ca〇, cerium oxide Si〇2, alumina Al2〇3 , sodium oxide, Na2, manganese oxide

Mg='錳和硫的影響、氧化磷IQ5、氧化鈦Ti〇2、鋅a 、锆Zr、銅Cu、鉻Cr、钻c〇、釩v、鎳恥和錯抑,當Mg='effect of manganese and sulfur, phosphorus oxide IQ5, titanium oxide Ti〇2, zinc a, zirconium Zr, copper Cu, chromium Cr, drill c〇, vanadium v, nickel shame and defiance

滾軋和鍛造(輾軋薄片)時是可以得到上述之薄片,或I 當去除薄片或滾軋時,該薄片會被清洗掉或從鋼鐵表面上 被噴灑出去或是被除去。 上述之輾軋薄片的含鐵量是介於3〇%與8〇%之間使 得該輾軋薄片的使用符合經濟性和環保要求。該輾乳薄片 可以被製作成煤球和煤磚之型式來加以使用,並且是連同 兩爐焦炭和配料一起經由頂端封閉裝置而進入至高焯内。 然而,由於尚需要提供額外的加工步驟,煤球和煤磚 要則並不有利。 依照本項發明之製造和供給燃料系統的創新方法, 碳運送介質(特別是一固態碳運送介質),或是二個或 多個碳運送介質的混合物,以及一預先還原之含鐵材料: 破供給至一輾粉機内,並且結合起來被加以粉碎,以及^ 用粉碎煤炭注入程序而以可預設粒徑尺寸,經由鼓風口 供給至一高爐内。 ^ 有利之處為採用固態碳運送介質或燃料粗材料煤炭 特別是坑煤或褐煤),或是煤炭和石油焦炭之混合物厌^ 外’由於預先還原鐵材料,薄片(例如是輾軋薄“的乂 1290957 屬或含鐵量是介於3〇% 8〇% <間,該薄片是以可㈣ 混合比例而被進給至-個具有整合式筛子的滾子報粉機, 並且還會經過一粉碎一篩選的加工程序。 所採用之燃料粗材料或是混合物以是具有下列特點為 板、且:熱值大於麵千卡/公斤,含水量大約是⑼, 而且進給粒徑尺寸是從10 Him到大約8〇mm。 輾軋薄片可以單獨從燃料粗材料輪送至概粉機進給部 位,並且於此輾粉機内僅與燃料材料或燃料粒子相混人。 二:於粉碎和筛選加工程序,以及所需的粉碎後;物 :,處為於碎煤機的上游處被提供有一個混合裝 料結人^個此合床或混合鼓^並且供給由燃科粗材 物二:組成的一進給或裝載混合物,此混合 一過離出來’接著會被供給至高爐鼓二 P將被注入之燃料系統。 從安全要求的觀點來看,粉碎作用以是在惰性 裱境内被施行為較有利。經由 )來提供於熱氣產生器内所需的”=疋煙道氣體 物被清除掉,而且—朴度,水份會從裝載混合 項如碎一乾燥加工程序則會被施行。 ^作用亦可以連同做為乾燥氣體之熱空氣—起於一 =又備内被施行。另外一種用 、卜 工程序的可能方法是使用科伯“广予4碎—乾燥加 熱裝置之氣體。 +伯氏(C—氣體或鼓風加 理論上,當採用-液塵潔淨加工程序來以機械方式去 1290957 除4片時,或是當滾軋和輸送過程中有磨耗產生時,上述 之輾軋薄片均會生成。-般而言,薄片是具有高含水量( 高達90% )和包含有來自滾軋過程中所產生之潤滑油脂。 依循一種後處理方式,例如是在一靜置貯存槽内或是藉由 壓製的加工程序,含水量可以是從2%至"5%,含油量是 介於⑽與之間’以及粒徑尺寸大約是從〇.5職 大 50 mm。 ί之處為所使用的裝載混合物是由大約之燃 粗材料(例如是坑煤)和大約15%⑲㈣ 此混合物内之粗煤炭的粒徑尺寸大約是介於0 mm盘1〇 顏之間煤炭),或是介於〇咖與5。軸之間 粒徑尺寸可達最大5〇_。輕粉機下游之 寸則是,到_,小於90μηι。 貝位尺 是球亦可以在所有適宜的粉碎系統與輾粉機(例如 疋球形輾粉機和垂直放爷工細从」fe t 、列如 行粗煤炭或粗煤戾鱼石=隹山牙'/、其他類似設傷)中施 用。煤炭/石油焦炭: 到該粉碎加工料。㈣裝载混合物則™會影響 已知在_L0ESCHE型滾 料(特別是坑煤)與薄“整合式粉粗材 省成本、合理和有效地被施行。已知疋此夠非常節 ,例如是輾粉機之特定動力需已 不曰因為以下結果的改變而受到影響果產力均 w輾乾薄片會與坑煤或 μ到 屎和石油焦戾之混合物相混 12 1290957 合。粒徑尺寸的分佈大致上是相同,亦即是在5⑽_㈣ 到0.05% R90 _之範圍内僅有非常小的差異,以上社果 的產生例如是相對於純粹煤炭粉碎作用與具有薄片的粉碎 作用之間的特定動力需求。事實上,由於薄片在燃料混合 物内的佔有比例上升’該輾粉機的動力需求甚至是會減小 0 -項特別的優點為在鼓風口内之燃料薄片混合物的點 火性能獲得改善,此項結果的得到係由於報札薄片盘一辦 料粗材料之整合式粉碎作用的共同效果。於是,已知隨著 ;整合式粉碎加工程序之後,薄片顆粒會附著至燃料顆粒 ’而且不管介於燃料顆粒與薄片顆粒之間的密度差 =或篩選的過程中是無法分離出薄片顆粒與燃料顆粒, 、在U刀碎煤厌注人程序之供給與注人的過程中亦無 广出薄片顆粒與燃料顆粒。已知介於燃料顆教盥薄:、 、、且5物之間的緊密連結是可以顯著增加燃燒速度。,、 力転序中’藉由在每-個滾子之下的壓碎加 ㉛之楚:料顆粒與薄片組合物二成份會做最緊密 ::觸。假:存在於該輾乾薄片内的金屬氧化物會以二 j而附者至煤炭顆粒上。在薄片内所殘留的 :::片連結或附著至媒炭顆粒 卜被燃燒煤厌顆粒與薄片組合物之間的緊密連結 有—清楚界定之氧化予搭从 、 化物,進而導致潛力和一催化作用的金屬氧 本項發明之心ΓΓ燃燒性能獲得顯著改善。依照 糸、、先(亦即是即將被注入之燃料薄片混合 13 μ y Ei修哲换頁〆 ^~Η____________ " Ί I29Q9S7· 易和 新供給至生鐵的製造尹,“ _方4 ’將副產品薄片重 程序。 '、°同時得到最佳化的高爐加工 另外一項有利之處為由於辕軋 供A,道砧β/Λ — ⑦乃疋、I由妓風口而被 、、。,V致附者於該輾軋薄 之下,而且僅有非常少量的有上由科會被曝露至非常高溫 如同在專利编啃。燃燒產物會生成。於是, DE 1(H)38566 A1中所描述之内容 ^ ^ 孔/寻月上的油料之密封方法。 依J本發明,從裝置 游處的粉碎煤炭注入程序看’在位於裰粉機之上 , 斤叹備和個別的燃料粗材料裝置中 m㈣㈣片材料(例如是儲存於一儲存煤倉 ®筒倉内的㈣薄片)之輪送裝置和/或配劑裝置/、 鐵二卜一方面,為了要預先混合該輾軋薄片或預先還原 :材料與燃料粗材料,輾粉機的上游處會被提供有一個預 ^于〃有可預設混合比例的進給混合物能 化成’並且係經由例如是—配劑煤倉而被供給至粉碎加 工程序中。 此外’於-過遽器的下游處亦被適宜地安置另外一個 =合裂置’在此過滤器中,輾粉機的煤粉薄片混合物會被 刀離出來’並且係提供在_用來接收該即將被注人之屍入 物之圓筒倉的上游處。 μ σ 精細材料圓筒倉的下游處通常會被提供有託運容哭或 是供給容器和一分配用圓筒倉,而且藉由注入管線之二 創新的燃料混合物是被供給至高爐鼓風口。 14 12¾ 有利之處為依照本項發明的燃料系統是能 照粉碎煤炭注入程序之煤粉相同的方式而被供用= 風:内。參考例如是whs.A·公司之,,粉碎煤炭 1 司型錄’其中描述了藉由重力或氣麗之作用而 =準供給系統,連同分配與輸送系統,這些系統中 ,括有稀的或稍的流動輸送或運送系統,The above-mentioned sheets can be obtained by rolling and forging (rolling sheets), or when the sheets are removed or rolled, the sheets are washed off or sprayed off or removed from the steel surface. The iron content of the above-mentioned rolled sheet is between 3% and 8%, so that the use of the rolled sheet meets economic and environmental requirements. The skim milk flakes can be made into a form of briquettes and briquettes, and together with the two furnace cokes and ingredients, enter the sorghum via the top closure. However, briquettes and briquettes are not advantageous because of the additional processing steps that need to be provided. An innovative method of manufacturing and supplying a fuel system according to the present invention, a carbon transport medium (particularly a solid carbon transport medium), or a mixture of two or more carbon transport media, and a pre-reduced iron-containing material: It is supplied to a pulverizer, and is pulverized in combination, and is supplied to a blast furnace via a tuyere at a predetermined particle size by a pulverized coal injection process. ^ It is advantageous to use solid carbon transport medium or crude fuel material coal, especially pit coal or lignite), or a mixture of coal and petroleum coke. Due to the pre-reduced iron material, the flakes (for example, thin rolled)乂1290957 genus or iron content is between 3〇% and 8〇%, and the sheet is fed to a roller powder machine with an integrated sieve in a (4) mixing ratio, and also passes through A pulverization-screening process. The crude fuel material or mixture used has the following characteristics as a plate, and the calorific value is greater than the surface kcal/kg, the water content is approximately (9), and the feed particle size is from 10 Him to about 8〇mm. The rolled sheet can be separately transferred from the crude fuel material to the feed point of the powder mill, and it is only mixed with the fuel material or fuel particles in the powder mill. Selecting the processing procedure, and the required pulverization; the material: is provided at the upstream of the coal pulverizer with a mixed charge knot, a combined bed or a mixed drum ^ and supplied by the burning material : a feed or load mixture This mixing will be sent out and then will be supplied to the fuel system where the blast furnace drum 2 P will be injected. From the point of view of safety requirements, the comminution effect is favored in the inert sputum. The required "= flue gas in the hot gas generator is removed, and - the water will be applied from the loading mix, such as the crushing and drying process. ^ The effect can also be carried out together with the hot air as a dry gas. Another possible method of using the laborer's program is to use Cobo's "Guangfu 4-spray-drying heating device gas. +Berner (C-gas or blast plus theoretically, when using -liquid dust clean processing program to Mechanically going to 1290957, except for 4 pieces, or when there is wear during rolling and conveying, the above-mentioned rolled sheets are formed. - Generally, the sheets have high water content (up to 90%) and contain There is grease from the rolling process. According to a post-treatment method, for example, in a static storage tank or by a pressing process, the water content can be from 2% to "5%, oily The amount is between (10) and between 'and the particle size is about 50 mm from the 〇.5 job. The ί is that the loading mixture used is from about the crude material (for example, pit coal) and about 15% 19(4) The size of the coarse coal in this mixture is approximately between 0 mm and 1 mm, or between the coffee and the shaft. The particle size can be up to 5 〇. The downside of the machine is, to _, less than 90μηι. In all suitable comminution systems and powder mills (such as 疋 spherical powder machine and vertical fine work fine) "fe t, column such as rough coal or coarse coal squid stone = 隹山牙' /, other similar injuries In the application. Coal/Petroleum Coke: To the crushed material. (4) Loading the mixture, TM will affect the known cost of _L0ESCHE type roll (especially pit coal) and thin "integrated powder and coarse material, which is cost-effective, reasonable and effective. It is known that this is very good, for example, 辗The specific power of the powder machine is no longer affected by the following results. The fruit yield is the same. The dry sheet will be mixed with the pit coal or the mixture of μ to 屎 and petroleum eschar. 12 1290957. It is roughly the same, that is, there is only a very small difference in the range of 5(10)_(4) to 0.05% R90_, and the above-mentioned fruit is produced, for example, with respect to the specific power demand between pure coal pulverization and pulverization with flakes. In fact, due to the increased proportion of the sheet in the fuel mixture, the power demand of the powder mill is even reduced by 0. The special advantage is that the ignition performance of the fuel flake mixture in the tuyere is improved. The result is obtained by the combined effect of the integrated pulverization of the raw material of the sheet of the sheet. Therefore, it is known that after the integrated pulverization process, the granules are attached. To the fuel particles 'and regardless of the difference in density between the fuel particles and the flake particles = or the process of screening can not separate the flake particles and fuel particles, in the U knife broken coal, the supply and injection of human procedures There are no flaky particles and fuel particles in the process. It is known that the tight connection between the fuel, the thin metal, and the five objects can significantly increase the burning speed. The crushing under each roller adds 31: the two components of the pellet and the foil composition will be the closest:: touch. False: the metal oxide present in the dried sheet will be Attached to the coal particles. Residual in the flakes::: pieces joined or attached to the coke particles. The tight junction between the burnt coal particles and the flake composition is clearly defined as the oxidation of the particles. , which leads to potential and a catalytic metal oxygen. The heartbeat combustion performance of the invention is significantly improved. According to 糸, first (that is, the fuel sheet to be injected is mixed 13 μ y Ei 哲哲 换 ^~ Η____________ " Ί I29Q9S7 Yihe new supply to the manufacture of pig iron Yin, "_ Fang 4' will re-process the by-product sheet. ', ° At the same time optimized blast furnace processing Another advantage is due to the rolling for A, the anvil β / Λ — 7乃疋, I is taken from the ventilator, and V is attached to the 辗 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The product is produced. Thus, the content described in DE 1(H) 38566 A1 ^ ^ hole / the method of sealing the oil on the moon. According to the invention of the invention, from the crushing coal injection program of the device tour, it is located in the 裰Above the powder machine, the m (4) (four) sheet material (for example, the (four) sheet stored in a storage bunker silo) in the individual fuel coarse material device, and/or the dispensing device /, the iron two On the one hand, in order to pre-mix the rolled sheet or pre-reduced: material and fuel coarse material, the upstream of the powder mill is provided with a feed mixture pre-prepared with a preset mixing ratio to be 'and Is supplied to, for example, a dispensing coal bunker Crush the processing program. In addition, 'the other side of the filter is also suitably placed in the lower part of the filter. In this filter, the powder mixture of the powder mill will be separated by the knife' and is provided for receiving The upstream of the silo of the corpse that is about to be injected. The downstream of the μ σ fine material silo is usually provided with a shipping cry or a supply container and a dispensing cylinder, and the innovative fuel mixture is supplied to the blast furnace blast by means of the injection line. 14 123⁄4 It is advantageous that the fuel system according to the present invention is supplied in the same manner as the pulverized coal injection pulverized coal powder = air: inside. For example, whs.A·Company, smashing coal 1 division type 'which describes the role of gravity or temperament = quasi-supply system, together with the distribution and delivery system, including rare or a slightly mobile delivery or delivery system,

郎糸統和—用於煤㈣可能預熱動#。 U 本發明將參考相當圖式化 文中被詳加描述。 &備圖式的早-視圖於下 【實施方式】 本方法之施行順序表示出有四個用於製造生鐵的基 的使用Γ ’以及一個用於一高爐鼓風口之創新燃料系統 分是==碎::依照本項發明之燃料…^ 實例中,—個L〇ES⑽型氣掃式滾子振粉2 ==粉碎加,中。然而,亦可以採用其= 式滾子輾粉機以及球形輾粉機和其他類似設備。 直 起始材料至少是一伽^ ,特別是坑煤或褐辉Λ固態碳運送介質6,例如是煤炭 在下文中則簡稱為粒烊ί是—煤炭與石油焦炭的混合物’ 8而被輸送進入-粒二6。此粗煤炭6是從一頂端部位 炭比例調配機構15而7存倉16,並且經由—輸送或煤 輸送機5。 彳達一個位於輾粉機2之上游處的 15 1290957 第二成分為一預先還原鐵材料7,以是薄片材料(例 如疋輾軋薄片)為較適宜,此預先還原鐵材料本身則是藉 由輸送或薄片比例調配機構14之作用而從一薄片儲存倉 1 7或一儲存機構,被供給至輸送機5,用以製造出一填充 或進給混合物4。 芝者’该進給混合物4是可以在一混合床或混合鼓内 被f造出來,其中粗煤炭與薄片材料會被混合在一起,並 且藉由一配劑儲存倉之作用而被進給至輾粉機内(未顯示 於圖中)。粗煤炭6的進給混合物4與輾耗薄片7則是以 一可預設之混合比例被供給至輾粉機2内較適當。 在第—方法步驟中,進給混合物4會被粉碎成為一即 二被注入之燃料系統1〇。在目前的實施例中,此項結果係 %生於一氣掃式滾子概 ’、 T。mm ! 内和㈣性氣體之操作環境 广者在-熱氣產生器u内被加 之惰性氣體或熱氣9的极从 q而钇备/皿度 一粉碎乾燥操作。埶氣’9、、、^上述之進給混合物4會經過 圖中)為較有“… 體一起作動。 生為11亦可以連同高爐氣 特別有利之處為燃料薄 2內被施行。攀充— \卷相同之方式而於該輾粉機 4 具兄兀成之轆去丨益" 理動作,用以減少含水旦溥片7通常是會被施加前處 2内之進給混合物4連同者的油料。經由在輾粉機 ,一個燃料系統則是會1 ϋ式師子3的粉碎乾燥作用 曰Ρ將被注入之燃料薄片混合物1〇 16 1290957 被產生,用丨、,始^ , 义將咼爐的加工程序最佳化。 中,::個广游過滤11 12 (例如是-織品或袋式過濾器) 广:之燃料薄片混合物10是會被分離出來,並且 經-吊桶輪18而通過進入至_個圓筒倉容器2〇内。Lang Yitong and - for coal (four) possible preheating #. U The present invention will be described in detail with reference to the equivalent drawings. & Early-view of the preparatory drawing [Embodiment] The execution sequence of the method shows that there are four uses for the production of pig iron, and an innovative fuel system for a blast furnace tuyere is = = Broken:: Fuel according to the invention...^ In the example, a L〇ES (10) type air-swept roller powder 2 == crushing, medium. However, it is also possible to use a = roller powder mill and a ball mill and other similar equipment. The straight starting material is at least one gamma, especially pit coal or brown fluorene solid carbon transport medium 6, for example, coal is hereinafter referred to as granule 烊 是 is a mixture of coal and petroleum coke '8 and is transported into the grain Two 6. This coarse coal 6 is from a top portion of the carbon proportioning mechanism 15 and 7 to the storage bin 16, and is passed through a conveyor or coal conveyor 5. 15 1290957 located upstream of the powder mill 2, the second component is a pre-reduced iron material 7, which is preferably a sheet material (for example, rolled sheet), and the pre-reduced iron material itself is The conveying or sheet proportioning mechanism 14 is fed from a sheet storage bin 17 or a storage mechanism to the conveyor 5 for producing a filling or feeding mixture 4. The medicinal mixture 4 can be produced by a f in a mixed bed or a mixing drum, wherein the coarse coal and the sheet material are mixed together and fed to the storage tank by a dispensing agent. Inside the powder machine (not shown in the figure). The feed mixture 4 and the waste sheet 7 of the coarse coal 6 are preferably supplied to the powder mill 2 in a predetermined mixing ratio. In the first method step, the feed mixture 4 is pulverized into one or two injected fuel systems. In the current embodiment, this result is % derived from an air-swept roller. Mm ! Internal and (4) Operating atmosphere of the gas The wide range of inert gas or hot gas 9 is added to the hot gas generator u. The feed mixture 4 of the above-mentioned helium gas '9,, and ^ will pass through the figure to be more "...the body is actuated together. The birth of 11 can also be carried out together with the blast furnace gas, which is particularly advantageous for the fuel thin 2 to be carried. - \volume the same way and in the powder machine 4 brothers and sisters to go to benefit " action, to reduce the watery denier 7 is usually applied to the feed mixture 4 in the front 2 The oil of the person. Through the powder mill, a fuel system is the pulverization and drying effect of the ϋ 师 师 3 3 〇 燃料 燃料 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 Optimize the processing of the crucible. Medium::: a wide filter 11 12 (for example - fabric or bag filter) Wide: the fuel flake mixture 10 will be separated, and the - bucket wheel 18 And by entering into the _ a cylindrical container 2 〇.

有關知用虱壓之方式來供給即將被注入之燃料薄片混 的其他裝置,上述之圓筒倉容器2G係代表著第三 …驟。其中包含有圓筒倉儲存、藉由一氮氣壓力容器 21之協助來調節即將被注人之燃料薄片混合物1G的氣塵 供應方式、託運或供應容器22、23卩一個分配容哭24, 以及-連結或輸送管線25。從該分配容器24處往外通過 :同數目之用於該鼓風口 27的注入管線26,藉由此注入 官線26 t作用’即將被注入之燃料或粗煤炭薄片混合物 10會連同熱風一起被吹入。The above-described cylindrical container 2G represents a third step in the case of knowing the use of rolling to supply other means for mixing the fuel flakes to be injected. The utility model comprises a cylinder storage, an air dust supply mode for adjusting the fuel sheet mixture 1G to be injected by a nitrogen pressure vessel 21, a shipping or supply container 22, 23, a distribution cry 24, and Connect or transfer line 25. From the dispensing container 24, there is passed through: the same number of injection lines 26 for the blast opening 27, whereby the injection of the official line 26t acts 'the fuel to be injected or the coarse coal flake mixture 10 will be blown together with the hot air. In.

在高爐鼓風口内大約有高於攝氏2000度的高溫,導致 於燃料内的碳會燃繞成為一氧化碳,進而將礦石中之鐵氧 化物還原成鐵,並且伴隨著二氧化碳的產生。由於燃料薄 片混合物中的薄片顆粒主要為鐵氧化物,因此,鐵氧化物 亦會被遥原。 依照本發明之燃料系統的基本優點是包含有一即將被 注入之燃料薄片混合物,其中用於該薄片之還原劑量是低 於即將被填充之礦石的相當數量(依據金屬含量)。其同 時使用一副產物。另外一項優點是能夠使用到特別是受油 料污染之薄片材料。同時已發現到依照本發明經由高爐鼓 風口而被供給之燃料薄片混合物,導致高爐的加工程序得 17 1290957 到最佳化,例如是藉由加速還原劑的燃燒速度,其中主要 是被注入之煤炭和至少有一部份是焦炭所造成。其他優點 則為依照本項發明之燃料系統之合理、有效的製造和供給 〇 【圖式簡單說明】 (一) 圖式部分 第一圖係本發明之相當圖式化之設備圖式的單一視圖In the blast furnace blast opening, there is a high temperature of more than 2,000 degrees Celsius, which causes the carbon in the fuel to ignite into carbon monoxide, thereby reducing the iron oxide in the ore to iron, accompanied by the generation of carbon dioxide. Since the flake particles in the fuel flake mixture are mainly iron oxides, the iron oxides are also removed. A substantial advantage of the fuel system in accordance with the present invention is the inclusion of a fuel flake mixture to be injected wherein the reducing dose for the flakes is less than the equivalent amount of ore to be filled (depending on the metal content). It also uses a by-product. Another advantage is the ability to use sheet materials that are particularly contaminated with oil. At the same time, it has been found that the fuel flake mixture supplied via the blast furnace tuyere according to the present invention results in an optimization of the blast furnace processing procedure, for example by accelerating the burning rate of the reducing agent, which is mainly the injected coal. And at least some of it is caused by coke. Other advantages are the rational and efficient manufacture and supply of the fuel system according to the invention. [A brief description of the drawings] (1) The first part of the drawing is a single view of the device diagram of the equivalent drawing of the present invention.

,用以說明依照本發明之燃料系統、方法施行順序和設備 I 裝置。 (二) 元件代表符號 2.輾粉機/氣掃式滾子輾粉機/ 3.整合式篩子 垂直式滾子輾粉機 4.進給混合物/燃料薄片進給 5.輸送機 混合物 6.固態碳運送介質/粗煤炭 7.預先還原鐵材料/輾軋薄片 8.頂端部位 9.惰性氣體/熱氣/運送氣體 10.燃料系統/即將被注入燃料 11 ·熱氣產生器 · 系統/即將被注入燃料薄片 混合物 12.下游過濾器 14.輸送/薄片比例調配機構 15.輸送/煤炭比例調配機構 16.粗煤炭儲存倉 17.薄片儲存倉 18.吊桶輪 20.圓筒倉容器/輸送與分配裝 21.氮氣壓力容器/輸送與分配 置 裝置/高壓氣體容器 22.託運容器/供應容器/輸送與 23.供應容器/輸送與分配裝置 分配裝置 18 1290957 24.分配容器/輸送與分配裝置 25.連結/輸送管線/輸送與分配 裝置 26.注入管線/輸送與分配裝置 27.鼓風口 28.高爐To illustrate the fuel system, method execution sequence, and apparatus I apparatus in accordance with the present invention. (2) Component symbol 2. Powder machine / air-sweep roller powder machine / 3. Integrated sieve vertical roller powder machine 4. Feed mixture / fuel sheet feed 5. Conveyor mixture 6. Solid carbon transport medium / coarse coal 7. Pre-reduced iron material / rolled sheet 8. Top part 9. Inert gas / hot gas / transport gas 10. Fuel system / fuel to be injected 11 · Hot gas generator · System / imminently injected Fuel flake mixture 12. Downstream filter 14. Conveying/sheet proportioning mechanism 15. Conveying/coal proportioning mechanism 16. Rough coal storage bin 17. Sheet storage bin 18. Bucket wheel 20. Cylinder container/conveying and dispensing 21. Nitrogen pressure vessel / delivery and sub-configuration device / high pressure gas container 22. Consignment container / supply container / delivery and 23. Supply container / delivery and distribution device distribution device 18 1290957 24. Dispensing container / delivery and distribution device 25. Link /Transport line / conveying and distribution device 26. Injection line / conveying and distribution device 27. Blasting port 28. Blast furnace

Claims (1)

1290957 曰修(更)正本 f 拾、申請專利範圍: ———一~ 1. 一種在高爐中製造生鐵時用於供給在鼓風口中的燃 料混合物,其具有至少一固態、液態及/或氣態之碳運送介 質(6)及-薄片材料(7),可被供給為一準備好經由鼓風 口(27)被吹入之燃料薄片混合物(1〇),其特徵在於: 該準備好被吹入之燃料薄片混合物(1〇)可被氣動式 地輸送,並具有一約為3%之薄片比例及5〇%至8〇%之顆粒 粗縫度小於9 0 μπι。 2·如申凊專利範圍第1項所述之燃料混合物,其特徵钃| 在於: 響 具有2%至15%之水含量、介於〇及5%之間的油含量以 及顆粒尺寸達最大值為5〇mm的預先處理之薄片材料(了) 被使用為一用於該燃料薄片混合物(1〇)的起始材料。 3 ·如申凊專利範圍第1項所述之燃料混合物,其特徵 在於: 八 該燃料薄片混合物(10)包含有如一固態碳運送介質 (6 )之煤炭、一煤炭混合物、焦炭或一煤炭焦炭混合物 _ 及/或塑膠材料,如液態碳運送介質之油料,以及如氣態碳 運送介質之天然氣。 4.如申請專利範圍第! i 3項中任—項所述之燃料混 合物,其特徵在於: 該燃料薄片混合物(1〇 )能夠在一具有一整合式分級 器之輾粉機中,藉由坑煤、褐煤、粒狀煤碳、一煤炭混合 物或一煤炭與石油焦炭之混合物以及該薄片材料厂二 20 1290957 «=一·,*—一一^一._一, ; •.…〜‘·,.·说 V抑wtd一一,···_..·抑一--------------- 共同輾碎而被製^ 散I纪出來,且可藉助一 π 之輸送氣體,經由鈐、、, 自壓力合窃(21 ) 器(24)而被氧翻4、^ 、以、23)及一为配谷 ^叩孤礼動式地供應至注 27)。 &線(26)及鼓風口( 5. 如申請專利範圍第4項 在於: 、斤之之燃料混合物,其特徵 該準備好被吹入之燃料薄 %曼8Π。/ +人胤 乃此σ物(10)包含具有30 /〇至80/。之含鐵量的薄片材料(7)。 6. 種用於製造及供給一如申过直 中任一頂π、+、甲印專利範圍第1至5項 甲任項所述之燃料混合物的方法, 質^ 的万去,其中至少一碳運送介 負(6 )及一薄片材 及分級,並且作為!ϋ 概粉機(2)内被報碎 )-… 被吹入之燃料薄片混合物(1〇 於: 皮仏、、、°至一南爐(28)内,其特徵在 該輾粉機(2)被供給_ b 有約Μ夕屬μ L 進π,吧合物(4),該混合物具 〇之4片比例及包含在薄 %之鐵含詈,廿曰产, 專片材枓(7)中30%至80 被吹入且具有5G%至8中被輾碎成—準備好 薄片混合物(10)。之顆粒粗輪度小於的燃料 7 ·如申請專利範圍第6項你:、+、 # *宠 罘6項所述之方法,其特徵在於·· 该石反運送介質(6 )係由烨… 與石油焦炭之混合物、塑::,、一煤戾混合物、-煤炭 浮液所構成,並和該薄片:v(7f及/或塑夥與油料之懸 程床 寻月材科(7)經過一共同輾碎加工 序’且該準備好被吹入 之燃科溥片混合物(10)係藉由 21 1290957 (’事修(更)正本 一輪送與分配裝置(2〇至 入該高爐(28)内。 26 )而經由鼓風口( 27 )被吹 8.如申請專利範圍第7項所述之方法,其特徵在於: 該叙運达介質(6)經由一比例調配機〇”,及該薄 材料(7 )經由-薄片比例調配機(14 ),被供給至一 ^合裝置(5) ’於其中用於該輾粉機⑺之該進給混 合物(4 )被製造出。 9 ·如申睛專利範圍繁 国弟8項所述之方法,其特徵在於: 輾碎作用是在—#相^认 破仏$之心性軋體或空氣驅動的輾粉 機(2 )内被執行,為了鏟 # 丁馬了輾碎乾燥作用,供應有在一熱氣 產生器(11)内加熱到所需溫度之一惰性氣體 熱空氣。 10 ·如申請專利範圍第 9項所述之方法,其特徵在於 由具有熱值大於3000kcal/kg、座氣含量約15%及粒 徑尺寸達最大8〇mm之一燃料材料,及具有水含量介於2% 及15%之間’油含量介於〇%及5%之間,以及粒徑尺寸 達最大5(hun之一預處理薄片材料(7),所混合而成之進 給混合物(4)係發生於在轆粉機(2)上游之預混合裝置 (5)内。 n.如申請專利範圍第61 10項中任-項所述之方法 ,其特徵在於: 該進給混合物(4)係於一具有整合式分級器⑻之垂 直式滚子輾粉機⑵中被輾碎’且接著分級成準備好被吹 221290957 曰修(更)本本本, 专利 patent scope: ———一~ 1. A fuel mixture for supplying to the tuyere when producing pig iron in a blast furnace, having at least one solid, liquid and/or gaseous state The carbon transport medium (6) and the sheet material (7) may be supplied as a fuel sheet mixture (1) ready to be blown through the tuyere (27), characterized in that the preparation is blown in. The fuel flake mixture (1 〇) can be pneumatically conveyed and has a sheet ratio of about 3% and a particle size of 5 至 to 8 〇% less than 90 μm. 2. The fuel mixture as described in claim 1 of the patent application, characterized in that it has a water content of 2% to 15%, an oil content between 〇 and 5%, and a maximum particle size. A pre-treated sheet material of 5 mm was used as a starting material for the fuel flake mixture (1 〇). 3. The fuel mixture of claim 1, wherein the fuel flake mixture (10) comprises a coal, a coal mixture, coke or a coal coke, such as a solid carbon transport medium (6). Mixtures _ and/or plastic materials, such as oils from liquid carbon transport media, and natural gas such as gaseous carbon transport media. 4. If you apply for a patent scope! The fuel mixture according to any one of the items 3, wherein the fuel flake mixture (1〇) can be used in a quenching machine having an integrated classifier, by pit coal, lignite, granular coal Carbon, a coal mixture or a mixture of coal and petroleum coke and the sheet material factory 2 20 1290957 «=一·,*—一一一一._一, ;....~'·,.·说V suppress wtd One, one, one, one, one, one, one, one, one, one, one, one, one, one, one, one, one, one, one, one, one, ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, & line (26) and air vent (5) If the fourth item of the patent application scope is: , the fuel mixture of the jin, the characteristic of the fuel that is ready to be blown into the thinner is 8 Π. / + 胤 is this σ The material (10) comprises a sheet material (7) having an iron content of 30 /〇 to 80 /. 6. The kind used for manufacturing and supplying the same as the top of the π, +, A-print patent range 1 to 5 of the method of the fuel mixture described in any of the items A, wherein the at least one carbon transport is negative (6) and a sheet and grade, and is used as a !ϋ powder machine (2)碎碎)-... The fuel flake mixture that is blown in (1〇: 仏, ,, ° to a south furnace (28), which is characterized in that the powder machine (2) is supplied _ b Is a μ L into π, bar compound (4), the mixture has a ratio of 4 pieces of bismuth and is contained in a thin % of iron containing bismuth, 廿曰 ,, special sheet 枓 (7) 30% to 80 is blown into And having 5G% to 8 is smashed into - ready to form a mixture of flakes (10). The particles having a coarse roundness less than the fuel 7 are as described in the sixth item of the patent application scope: 6, +, # *宠6 It The method is characterized in that: the stone anti-transport medium (6) is composed of a mixture of petroleum coke, plastic::, a coal hydrazine mixture, a coal floating liquid, and the sheet: v (7f) And/or the suspension bed of the plastic and oil material (7) after a common mashing process 'and the ready to be blown into the mixture of fuels (10) by 21 1290957 ('things The method of the present invention is characterized in that the method of the present invention is characterized in that the method of the present invention is characterized in that the method of the present invention is characterized in that the method of the present invention is characterized in that the method of the present invention is characterized in that the present invention is characterized in that it is blown through the air vent (27). : the shuttle medium (6) is supplied to the control device (5) via a proportional applicator 7", and the thin material (7) is supplied to the device (5) The feed mixture (4) of the powder mill (7) is manufactured. 9 · The method described in the 8th item of the patent application scope is characterized in that: the mashing effect is in the The heart-rolling or air-driven pulverizer (2) is executed in order to shovel There is an inert gas hot air heated to a desired temperature in a hot gas generator (11). The method according to claim 9, characterized in that it has a calorific value of more than 3000 kcal/kg and a seat gas. Fuel material with a content of about 15% and a particle size of up to 8〇mm, and a water content between 2% and 15%, 'oil content between 〇% and 5%, and the largest particle size 5 (one of the pretreatment sheet materials (7), the mixed feed mixture (4) occurs in the premixing device (5) upstream of the powder mill (2). n. The method of any one of clauses 61 to 10, wherein: the feed mixture (4) is attached to a vertical roller powder machine (2) having an integrated classifier (8) Crushing 'and then grading into ready to be blown 22 1290957 入且具有一約為3%之薄片比例及5%至80%之顆粒粗糙度 小於90μπι之燃料薄片混合物(1〇),係藉助來自於一輸 送管線(25)中之一受壓氣體容器(21)的一輸送氣體或一 氣態混合物,被氣動式地輸送,並藉由一連續灌注系統及 分配裝置(24)及注入管線(26)被供應至鼓風口(27) 12.—種在高爐(28)中製造生鐵時用於經由鼓風口( 27 )之一燃料混合物的製造及供給之設備,其具有用於一 燃料混合物之一碳運送介質(6)及一薄片材料(7 )用的比 馨 例調配機(14、15)、一輾粉機(2)、一分級機(3)、一 燃料倉(20)及連結至鼓風口(27)的注入管線(26),該 設備特別是用於施行如申請專利範圍第6至丨丨項中任一 項所述之方法,其特徵在於: 輾粉機(2)之上游處被提供有一個用於從約之薄 片材料(7)及該碳運送介質(6)製造出一進給混合物的 預/心合裝置(5 ),及在該輾粉機(2 )、該分級機(3 ) 、一過濾器(12)及該燃料倉(2〇)的下游處,為了準備好 麵 被吹入之燃料薄片混合物(10 )之氣動輸送及供應,係提 供有一輸送管線(25)、一以至少二供應容器(22、23)之形 式的連續灌注系統及一以一分配容器(24)之形式的分配裝 置,且該燃料薄片混合物(1〇)係藉由超壓力或重力之^ 用通過進入該注入管線(26)及鼓風口( 27)。 13·如申請專利範圍第12項所述之設備,其特徵在於 23 1290957 仏年^月θ θ修(更}正本 該燃料薄片混合物(10 )的供應係藉由稠或稀之流動 輸送所產生。 拾壹、圖式: 如次頁。1290957 A fuel flake mixture (1〇) having a sheet ratio of about 3% and a 5% to 80% particle roughness of less than 90 μm, by means of a pressurized gas container from a transfer line (25) (21) a transport gas or a gaseous mixture is pneumatically transported and supplied to the tuyere (27) by a continuous perfusion system and distribution device (24) and injection line (26). Apparatus for the manufacture and supply of a fuel mixture via a tuyere (27) in the production of pig iron in a blast furnace (28) having a carbon transport medium (6) for a fuel mixture and a sheet material (7) a mixing machine (14, 15), a powdering machine (2), a classifier (3), a fuel tank (20) and an injection line (26) connected to the air vent (27), the device In particular, the method of any one of claims 6 to 3, wherein: the upstream of the powder machine (2) is provided with a sheet material for about (7) And the carbon transport medium (6) to produce a feed/mixing device for the feed mixture (5) And at the downstream of the powder mill (2), the classifier (3), a filter (12) and the fuel tank (2〇), in order to prepare the face to be blown into the fuel sheet mixture (10) The pneumatic conveying and supply is provided with a delivery line (25), a continuous perfusion system in the form of at least two supply containers (22, 23) and a dispensing device in the form of a dispensing container (24), and the fuel The flake mixture (1〇) is passed through the injection line (26) and the tuyere (27) by means of super pressure or gravity. 13. The apparatus of claim 12, characterized in that 23 1290957 仏 ^ θ θ 修 (more} original supply of the fuel flake mixture (10) is produced by thick or thin flow transport Pick up, pattern: such as the next page. 24 1290957 柒、指定代表圖·β (一) 本案指定代表圖為:第(1 )圖。 (二) 本代表圖之元件代表符號簡單說明: 2.輾粉機/氣掃式滾子輾粉機/ 3.整合式篩子 垂直式滾子輾粉機 4.進給混合物/燃料薄片進給 混合物 5.輸送機 6.固態碳運送介質/粗煤炭 7.預先還原鐵材料/輾軋薄片 8.頂端部位 9.惰性氣體/熱氣/運送氣體 10.燃料系統/即將被注入燃料 系統/即將被注入燃料薄片 混合物 11.熱氣產生器 12.下游過濾器 14.輸送/薄片比例調配機構 15.輸送/煤炭比例調配機構 16.粗煤炭儲存倉 17.薄片儲存倉 18.吊桶輪 20.圓筒倉容器/輸送與分配裝 置 21.氮氣壓力容器/輸送與分配 裝置/高壓氣體容器 22.託運容器/供應容器/輸送與 分配裝置 23.供應容器/輸送與分配裝置 24.分配容器/輸送與分配裝置 25.連結/輸送管線/輸送與分配 裝置 26.注入管線/輸送與分配裝置 28.高爐 27.鼓風口 棚、本案若有化學式時,請揭示最能顯示發明特徵的化學式24 1290957 柒, designated representative figure · β (1) The representative representative of the case is: (1). (2) The symbolic representation of the symbol of the representative figure is as follows: 2. Powder machine/air-sweeping roller powder machine/ 3. Integrated sieve vertical roller powder machine 4. Feed mixture/fuel sheet feeding Mixture 5. Conveyor 6. Solid carbon transport medium / coarse coal 7. Pre-reduced iron material / rolled sheet 8. Top end 9. Inert gas / hot gas / transport gas 10. Fuel system / will be injected into the fuel system / will be Injecting fuel flake mixture 11. Hot gas generator 12. Downstream filter 14. Conveying/sheet proportioning mechanism 15. Conveying/coal proportioning mechanism 16. Rough coal storage bin 17. Sheet storage bin 18. Bucket wheel 20. Container/Conveying and Dispensing Device 21. Nitrogen Pressure Vessel/Conveying and Dispensing Device/High Pressure Gas Container 22. Shipping Container/Supply Container/Conveying and Dispensing Device 23. Supply Container/Conveying and Dispensing Device 24. Dispensing Container/Conveying and Dispensing Device 25. Connection/transportation line/transport and distribution device 26. Injection line/transport and distribution device 28. Blast furnace 27. Blast shed, if there is a chemical formula in this case, please disclose the chemical formula that best shows the characteristics of the invention.
TW093112106A 2003-05-26 2004-04-30 Fuel mixture for supply in tuyeres when producing pig iron in the blast furnace and method and plant for the production and supply of the fuel mixture TWI290957B (en)

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DE4104072A1 (en) 1991-02-11 1992-08-13 Fechner Bruno Gmbh & Co Kg Recycling roll scale - grinds collected scale to be used with coal as fuel dust blown into blast furnace
EP0976839B1 (en) * 1993-04-26 2001-12-05 Der Grüne Punkt-Duales System Deutschland Aktiengesellschaft Method for producing metal from metal ores
DE4433596A1 (en) * 1994-09-21 1996-03-28 Heckett Multiserv Plc Method of pneumatically conveying milled plastics material in reaction vessel
DE19755389A1 (en) * 1997-12-12 1999-06-17 Krupp Polysius Ag Process and plant for the pneumatic conveying and blowing of bulk material into a metallurgical melting reactor
US6077325A (en) * 1998-06-09 2000-06-20 Betzdearborn Inc. Method of adding coal combustion enhancer to blast furnace
CZ288751B6 (en) * 1998-10-08 2001-08-15 Třinecké Železárny A.S. Method of supplying substitute fuels in blast furnace
DE10038566A1 (en) 2000-08-03 2002-03-21 Wolfgang Schwetlick Utilization of oil-loaded mill scale in shaft furnaces and converters
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DE10323902A1 (en) 2005-01-05
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