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DE69932357D1 - Verfahren zur herstellung von eisenschmelze im duplexofen - Google Patents

Verfahren zur herstellung von eisenschmelze im duplexofen

Info

Publication number
DE69932357D1
DE69932357D1 DE69932357T DE69932357T DE69932357D1 DE 69932357 D1 DE69932357 D1 DE 69932357D1 DE 69932357 T DE69932357 T DE 69932357T DE 69932357 T DE69932357 T DE 69932357T DE 69932357 D1 DE69932357 D1 DE 69932357D1
Authority
DE
Germany
Prior art keywords
duplex
oven
producing iron
iron melts
melts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69932357T
Other languages
English (en)
Other versions
DE69932357T2 (de
Inventor
E Hoffman
D Gray
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midrex Technologies Inc
Original Assignee
Midrex Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Midrex Technologies Inc filed Critical Midrex Technologies Inc
Application granted granted Critical
Publication of DE69932357D1 publication Critical patent/DE69932357D1/de
Publication of DE69932357T2 publication Critical patent/DE69932357T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
    • C21B13/105—Rotary hearth-type furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5252—Manufacture of steel in electric furnaces in an electrically heated multi-chamber furnace, a combination of electric furnaces or an electric furnace arranged for associated working with a non electric furnace
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • C21C1/025—Agents used for dephosphorising or desulfurising
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Iron (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Silicon Compounds (AREA)
DE69932357T 1998-10-30 1999-10-29 Verfahren zur herstellung von eisenschmelze im duplexofen Expired - Lifetime DE69932357T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10643398P 1998-10-30 1998-10-30
US106433P 1998-10-30
PCT/US1999/025591 WO2000026420A1 (en) 1998-10-30 1999-10-29 Method of producing molten iron in duplex furnaces

Publications (2)

Publication Number Publication Date
DE69932357D1 true DE69932357D1 (de) 2006-08-24
DE69932357T2 DE69932357T2 (de) 2006-11-16

Family

ID=22311397

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69932357T Expired - Lifetime DE69932357T2 (de) 1998-10-30 1999-10-29 Verfahren zur herstellung von eisenschmelze im duplexofen

Country Status (12)

Country Link
US (1) US6251156B1 (de)
EP (1) EP1144696B1 (de)
JP (1) JP4060034B2 (de)
CN (1) CN100343396C (de)
AR (1) AR021028A1 (de)
AT (1) ATE332982T1 (de)
AU (1) AU761344B2 (de)
CA (1) CA2346977C (de)
DE (1) DE69932357T2 (de)
ES (1) ES2272090T3 (de)
TW (1) TW518366B (de)
WO (1) WO2000026420A1 (de)

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US6582491B2 (en) * 1998-10-30 2003-06-24 Midrex International, B.V. Rotterdam, Zurich Branch Method for producing molten iron in duplex furnaces
DE60144072D1 (de) * 2000-03-30 2011-03-31 Kobe Seiko Sho Kobe Steel Kk Verfahren zur Herstellung von metallischem Eisen in einem Schmelzreduktionsofen mit bewegender Sohle
US6451084B1 (en) * 2000-04-06 2002-09-17 Ernest Q. Petrey, Jr. Iron oxide waste agglomerates and method of assisting a steel-making operation
US6669756B2 (en) 2000-07-31 2003-12-30 Kabushiki Kaisha Kobe Seiko Sho Discharge apparatus for movable hearth type heat-treatment furnace, its operation method, and method and apparatus for manufacturing molten iron using the same
US6409790B1 (en) * 2001-03-16 2002-06-25 Calderon Energy Company Of Bowling Green, Inc. Method and apparatus for practicing carbonaceous-based metallurgy
JP4691827B2 (ja) * 2001-05-15 2011-06-01 株式会社神戸製鋼所 粒状金属鉄
JP4669189B2 (ja) * 2001-06-18 2011-04-13 株式会社神戸製鋼所 粒状金属鉄の製法
US6689182B2 (en) * 2001-10-01 2004-02-10 Kobe Steel, Ltd. Method and device for producing molten iron
JP4116874B2 (ja) * 2002-12-05 2008-07-09 株式会社神戸製鋼所 溶鉄の製法
US7413592B2 (en) * 2004-03-31 2008-08-19 Nu-Iron Technology, Llc Linear hearth furnace system and methods regarding same
UA92751C2 (uk) * 2005-08-30 2010-12-10 Е. І. Дю Пон Де Немур Енд Компані Спосіб видалення оксиду титану та заліза з руди
US9002313B2 (en) 2006-02-22 2015-04-07 Federal Signal Corporation Fully integrated light bar
US7746794B2 (en) 2006-02-22 2010-06-29 Federal Signal Corporation Integrated municipal management console
GB0605796D0 (en) * 2006-03-23 2006-05-03 Renishaw Plc Apparatus and method of measuring workpieces
WO2009052066A1 (en) * 2007-10-15 2009-04-23 E. I. Du Pont De Nemours And Company Ore reduction process using carbon based materials having a low sulfur content and titanium oxide and iron metallization product therefrom
JP5503472B2 (ja) * 2010-09-07 2014-05-28 株式会社神戸製鋼所 還元鉄の製造方法
CN102051428B (zh) * 2011-01-20 2012-02-08 西安建筑科技大学 一种综合处理铜选矿尾渣和镍熔融渣的提铁炼钢工艺
CA2853223C (en) * 2012-08-22 2018-03-06 Hoffman & Sons Technologies, Llc Producing pig iron from iron-containing feed materials
WO2014197315A1 (en) * 2013-06-03 2014-12-11 Midrex Technologies, Inc. Methods and systems for producing ferro-chrome in a duplex furnace
RU2720788C2 (ru) * 2015-11-18 2020-05-13 Минтек Усовершенствованный способ плавки ильменита
DE102017212583A1 (de) * 2017-07-21 2019-01-24 Technische Universität Bergakademie Freiberg Pellet als Zuschlagstoff für metallurgische Prozesse und Verfahren zu dessen Herstellung und Verwendung
CN108004366A (zh) * 2017-11-29 2018-05-08 朝阳金河粉末冶金材料有限公司 一种采用钒钛磁铁矿还原磁选制备铁粉生产耐磨介质的方法
KR102020453B1 (ko) * 2017-12-26 2019-09-10 주식회사 포스코 제강부산물로부터 유가금속 회수방법
JP6954481B2 (ja) * 2018-12-07 2021-10-27 日本製鉄株式会社 加炭材およびそれを用いた加炭方法
JP7293634B2 (ja) * 2018-12-18 2023-06-20 住友金属鉱山株式会社 酸化鉱石の製錬方法
TWI711702B (zh) * 2019-09-03 2020-12-01 中國鋼鐵股份有限公司 鐵碳複合材料及鐵氧化物的還原方法
DE102020205493A1 (de) 2020-04-30 2021-11-04 Sms Group Gmbh Verfahren zum Herstellen von flüssigem Roheisen aus einem DRI-Produkt
JP7636731B2 (ja) * 2022-04-22 2025-02-27 Ｊｆｅスチール株式会社 直接還元鉄の溶解方法、固体鉄の製造方法、土木建築用資材の製造方法および直接還元鉄の溶解システム
AU2023255849A1 (en) * 2022-04-22 2024-10-10 Jfe Steel Corporation Method for melting direct reduced iron, solid iron and method for producing the same, and material for civil engineering and construction and method for producing the same
CN119585448A (zh) * 2022-07-29 2025-03-07 安赛乐米塔尔公司 用于在电熔炼炉中制造生铁的方法和相关的电熔炼炉
JP2025524820A (ja) * 2022-07-29 2025-08-01 アルセロールミタル 電気製錬炉を備える製造ラインにおいて銑鉄を製造するための方法
CA3257981A1 (en) * 2022-07-29 2024-02-01 Arcelormittal METHOD FOR MANUFACTURING CROWN CART IN AN ELECTRIC MELTING FURNACE AND ASSOCIATED MELTING FURNACE
AU2022471041A1 (en) * 2022-07-29 2024-12-05 Arcelormittal A method for manufacturing pig iron in an electrical smelting furnace and associated electrical smelting furnace
EP4562199A1 (de) * 2022-07-29 2025-06-04 ArcelorMittal Verfahren zur herstellung von roheisen in einem elektrischen schmelzofen und zugehöriger elektrischer schmelzofen
AU2022471176A1 (en) * 2022-07-29 2024-12-05 Arcelormittal A method for manufacturing pig iron in an electrical smelting furnace and associated electrical smelting furnace
CA3257767A1 (en) * 2022-07-29 2024-02-01 Arcelormittal METHOD FOR THE MANUFACTURE OF MELTED IRON IN AN ELECTRIC MELTING FURNACE
EP4562191A1 (de) * 2022-07-29 2025-06-04 ArcelorMittal Verfahren zur herstellung von roheisen in einem elektrischen schmelzofen und zugehöriger ofen
AU2022471368A1 (en) * 2022-07-29 2024-12-05 Arcelormittal A method for manufacturing pig iron in an electrical smelting furnace and associated electrical smelting furnace
CN115491453B (zh) * 2022-08-23 2023-12-19 攀钢集团西昌钢钒有限公司 一种PLCsmelt熔融还原炼铁方法及装置
EP4417713A1 (de) 2023-02-14 2024-08-21 Oterdoom, Harmen Das neuartige zweistufige (halb-)kontinuierliche verfahren für saubere schlacke und stahl oder heisseisen
WO2024254668A1 (pt) * 2023-06-16 2024-12-19 Gavea Tech Ltda Equipamento e processo para produção de ligas metálicas e método de tratamento de gases

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US1324458A (en) * 1919-12-09 Method of preventing oxidation of molten metal
US4395285A (en) 1980-03-26 1983-07-26 Elkem Metals Company Low density compacts of prepared mix for use in the production of silicon and ferrosilicon
US4436551A (en) * 1981-10-26 1984-03-13 Sumitomo Heavy Industries, Ltd. Process for making steel from direct-reduced iron
CN86101529A (zh) * 1983-09-14 1988-02-17 新西兰钢铁公司 铁水的生产
US4514218A (en) * 1984-06-06 1985-04-30 Daidotokushuko Kabushikikaisha Reduced iron melting method using electric arc furnace
US4564388A (en) * 1984-08-02 1986-01-14 Intersteel Technology, Inc. Method for continuous steelmaking
US4731112A (en) 1986-02-19 1988-03-15 Midrex International, B.V. Rotterdam, Zurich Branch Method of producing ferro-alloys
US4699654A (en) * 1986-04-08 1987-10-13 Union Carbide Corporation Melting furnace and method for melting metal
US4701214A (en) 1986-04-30 1987-10-20 Midrex International B.V. Rotterdam Method of producing iron using rotary hearth and apparatus
AU600777B2 (en) * 1986-12-15 1990-08-23 Jfe Steel Corporation Method for manufacturing agglomerates of fired pellets
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US5296015A (en) * 1990-01-09 1994-03-22 Hylsa S.A. De C.V. Method for the pneumatic transport of large iron-bearing particles
US5186741A (en) * 1991-04-12 1993-02-16 Zia Patent Company Direct reduction process in a rotary hearth furnace
FR2705768B1 (fr) * 1993-05-27 1995-07-21 Lorraine Laminage Four métallurgique pour la fusion de matières métalliques et/ou l'élaboration de métal liquide, tel qu'un four électrique d'aciérie, et procédé d'élaboration utilisant un tel four.
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Also Published As

Publication number Publication date
US6251156B1 (en) 2001-06-26
AR021028A1 (es) 2002-06-12
CN100343396C (zh) 2007-10-17
EP1144696A4 (de) 2003-01-08
EP1144696A1 (de) 2001-10-17
ES2272090T3 (es) 2007-04-16
CN1330723A (zh) 2002-01-09
EP1144696B1 (de) 2006-07-12
JP2002528645A (ja) 2002-09-03
CA2346977C (en) 2006-09-19
WO2000026420A1 (en) 2000-05-11
ATE332982T1 (de) 2006-08-15
DE69932357T2 (de) 2006-11-16
AU761344B2 (en) 2003-06-05
CA2346977A1 (en) 2000-05-11
TW518366B (en) 2003-01-21
AU1810400A (en) 2000-05-22
JP4060034B2 (ja) 2008-03-12

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Legal Events

Date Code Title Description
8328 Change in the person/name/address of the agent

Representative=s name: PATENTANWAELTE VON KREISLER, SELTING, WERNER, DE

8364 No opposition during term of opposition