ES2189022T3 - Metodo y aparato para la reduccion rapida del oxido de hierro en un horno de solera giratoria. - Google Patents

Metodo y aparato para la reduccion rapida del oxido de hierro en un horno de solera giratoria.

Info

Publication number
ES2189022T3
ES2189022T3 ES98104960T ES98104960T ES2189022T3 ES 2189022 T3 ES2189022 T3 ES 2189022T3 ES 98104960 T ES98104960 T ES 98104960T ES 98104960 T ES98104960 T ES 98104960T ES 2189022 T3 ES2189022 T3 ES 2189022T3
Authority
ES
Spain
Prior art keywords
compacts
iron oxide
fast reduction
solar oven
rotating solar
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
ES98104960T
Other languages
English (en)
Inventor
David Charles Meissner
Thomas H Boyd
James A Lepinski
Jimmy D Sloop
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
Priority claimed from US08/832,414 external-priority patent/US5885521A/en
Application filed by Midrex Technologies Inc filed Critical Midrex Technologies Inc
Application granted granted Critical
Publication of ES2189022T3 publication Critical patent/ES2189022T3/es
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
    • C21B13/10—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
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0046—Making spongy iron or liquid steel, by direct processes making metallised agglomerates or iron oxide
    • 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
    • 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

Abstract

LA INVENCION SE REFIERE A UN PROCEDIMIENTO Y UN APARATO PARA LA PRODUCCION DIRECTA DE HIERRO REDUCIDO A PARTIR DE COMPACTOS SECOS FORMADOS POR OXIDO DE HIERRO Y MATERIAL CARBONACEO. DICHO PROCEDIMIENTO CONSISTE EN ALIMENTAR DICHOS COMPACTOS FORMANDO NO MAS DE DOS CAPAS DE ESPESOR SOBRE UNA SOLERA; ELIMINAR TODAS LAS MATERIAS VOLATILES Y METALIZAR DICHOS COMPACTOS MEDIANTE EXPOSICION A UNA FUENTE DE CALOR RADIANTE, A UNA TEMPERATURA ENTRE APROX. 1315 Y 1430 C, DURANTE UN TIEMPO TOTAL DE APROX. CUATRO A DIEZ MINUTOS, Y ENFRIAR PARCIALMENTE DICHOS COMPACTOS, AL TIEMPO QUE SE DESCARGAN DE LA SOLERA.
ES98104960T 1994-12-16 1998-03-18 Metodo y aparato para la reduccion rapida del oxido de hierro en un horno de solera giratoria. Expired - Lifetime ES2189022T3 (es)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US08/357,940 US5730775A (en) 1994-12-16 1994-12-16 Method for rapid reduction of iron oxide in a rotary hearth furnace
US08/832,414 US5885521A (en) 1994-12-16 1997-04-02 Apparatus for rapid reduction of iron oxide in a rotary hearth furnace
PCT/US1998/005006 WO1999046410A1 (en) 1994-12-16 1998-03-13 Method and apparatus for rapid reduction of iron oxide in a rotary hearth furnace
CA002232275A CA2232275C (en) 1994-12-16 1998-03-17 Method and apparatus for rapid reduction of iron oxide in a rotary hearth furnace
EP98104960A EP0947586B1 (en) 1994-12-16 1998-03-18 Method and apparatus for rapid reduction of iron oxide in a rotary hearth furnace
TW087104297A TW442573B (en) 1994-12-16 1998-03-23 Method for producing direct reduced iron from dry compacts, and apparatus for producing metal from direct reduced iron from dry compacts in a rotary hearth furnace

Publications (1)

Publication Number Publication Date
ES2189022T3 true ES2189022T3 (es) 2003-07-01

Family

ID=33437265

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98104960T Expired - Lifetime ES2189022T3 (es) 1994-12-16 1998-03-18 Metodo y aparato para la reduccion rapida del oxido de hierro en un horno de solera giratoria.

Country Status (9)

Country Link
US (1) US5730775A (es)
EP (1) EP0947586B1 (es)
AT (1) ATE229084T1 (es)
AU (1) AU6760598A (es)
CA (1) CA2232275C (es)
DE (1) DE69809883T2 (es)
ES (1) ES2189022T3 (es)
TW (1) TW442573B (es)
WO (1) WO1999046410A1 (es)

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JP3845978B2 (ja) * 1997-09-30 2006-11-15 Ｊｆｅスチール株式会社 回転炉床炉の操業方法および回転炉床炉
ID26484A (id) * 1997-12-26 2001-01-11 Nippon Kokan Kk Metode pemurnian besi lelehan dan metode reduksi pelelehan untuk memproduksi besi lelehan
JP3081581B2 (ja) * 1998-03-23 2000-08-28 株式会社神戸製鋼所 高金属化率還元鉄塊成物の製造方法
EP0952230A1 (en) * 1998-03-24 1999-10-27 KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. Method of producing reduced iron agglomerates
US6120577A (en) * 1998-03-25 2000-09-19 Ltv Steel Company, Inc. Treatment of steel mill waste metal oxides
JP2997459B1 (ja) * 1998-11-04 2000-01-11 株式会社神戸製鋼所 還元鉄塊成物の製造方法
TW502066B (en) 1998-08-27 2002-09-11 Kobe Steel Ltd Method for operating moving hearth reducing furnace
TW461920B (en) 1998-09-25 2001-11-01 Mitsubishi Heavy Ind Ltd Method of producing reduced iron and production facilities therefor
US6685761B1 (en) 1998-10-30 2004-02-03 Midrex International B.V. Rotterdam, Zurich Branch Method for producing beneficiated titanium oxides
AU761344B2 (en) * 1998-10-30 2003-06-05 Midrex Technologies Inc. Method of producing molten iron in duplex furnaces
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JP3404309B2 (ja) * 1999-01-18 2003-05-06 株式会社神戸製鋼所 還元鉄塊成物の製造方法および製造装置
US6390810B1 (en) 1999-03-15 2002-05-21 Maumee Research & Engineering, Inc. Method and apparatus for reducing a feed material in a rotary hearth furnace
BR9917437A (pt) * 1999-07-28 2002-06-18 Sidmar Nv Processo e forno de redução de óxidos metálicos
CN1276097C (zh) 1999-08-30 2006-09-20 株式会社神户制钢所 粒状还原铁原料的供给方法及其装置
JP4227710B2 (ja) 1999-09-17 2009-02-18 三菱重工業株式会社 還元鉄製造装置
US6368104B1 (en) * 1999-09-24 2002-04-09 The Boc Group, Inc. Rotary hearth furnace
RU2228365C2 (ru) 2000-03-30 2004-05-10 Мидрекс Интернэшнл Б.В. Цюрих Бранч Способ получения гранулированного металлического железа, способ получения жидкой стали, способ получения металлического железа, устройство для загрузки вспомогательного исходного материала и устройство для загрузки исходного материала
JP4540172B2 (ja) * 2000-03-30 2010-09-08 株式会社神戸製鋼所 粒状金属鉄の製法
TW562860B (en) 2000-04-10 2003-11-21 Kobe Steel Ltd Method for producing reduced iron
US6802886B2 (en) * 2000-06-05 2004-10-12 Midrex Technologies, Inc. Method of producing a metallized briquette
JP2002020813A (ja) * 2000-07-05 2002-01-23 Mitsubishi Heavy Ind Ltd 還元鉄製造装置
EP1338660B1 (en) * 2000-10-30 2009-05-13 Nippon Steel Corporation Metal oxide-containing green pellet for reducing furnace and method for production thereof, method for reduction thereof
US7037356B2 (en) * 2000-11-10 2006-05-02 Nippon Steel Corporation Method for operating rotary hearth type reducing furnace and rotary hearth type reducing furnace facilities
US6749664B1 (en) 2001-01-26 2004-06-15 Midrex International, B.V., Rotterdam, Zurich Branch Furnace hearth for improved molten iron production and method of operation
JP2002363626A (ja) * 2001-06-11 2002-12-18 Kobe Steel Ltd 移動炉床炉の操業方法
US6993855B2 (en) * 2001-09-27 2006-02-07 Nippon Steel Corporation Method for drying compact containing metal oxide, method for reducing metal oxide, and rotary-hearth-type metal reducing furnace
US8197561B2 (en) * 2001-10-10 2012-06-12 River Basin Energy, Inc. Process for drying coal
AU2003230680A1 (en) * 2002-03-19 2003-10-08 Superior Graphite Co. Process and apparatus for the direct reduction of iron oxides in an electrothermal fluidized bed and resulant product
JP4307849B2 (ja) * 2003-01-07 2009-08-05 株式会社神戸製鋼所 クロム含有原料の還元方法
JP4490640B2 (ja) * 2003-02-26 2010-06-30 株式会社神戸製鋼所 還元金属の製造方法
AU2003903344A0 (en) * 2003-06-30 2003-07-17 Furnace Engineering Pty Ltd High temperature process
AU2004252178B2 (en) * 2003-06-30 2009-10-08 Furnace Engineering Pty Ltd High temperature process
CA2590259C (en) * 2004-12-07 2016-02-16 Nu-Iron Technology, Llc Method and system for producing metallic iron nuggets
US8470068B2 (en) * 2004-12-07 2013-06-25 Nu-Iron Technology, Llc Method and system for producing metallic iron nuggets
CA2616394A1 (en) * 2005-08-30 2007-03-08 E.I. Du Pont De Nemours And Company Ore reduction process and titanium oxide and iron metallization product
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JP5059379B2 (ja) * 2006-11-16 2012-10-24 株式会社神戸製鋼所 高炉装入原料用ホットブリケットアイアンおよびその製造方法
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US8372179B2 (en) * 2007-10-15 2013-02-12 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
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CZ200975A3 (cs) 2009-02-10 2010-08-04 Raclavský@Milan Technologie rafinace kovonosných odpadu s obsahem zinku v rotacní peci
WO2011041431A1 (en) 2009-09-29 2011-04-07 Nu-Iron Technology, Llc System and method for producing metallic iron
US9057037B2 (en) 2010-04-20 2015-06-16 River Basin Energy, Inc. Post torrefaction biomass pelletization
US8956426B2 (en) * 2010-04-20 2015-02-17 River Basin Energy, Inc. Method of drying biomass
US8287621B2 (en) 2010-12-22 2012-10-16 Nu-Iron Technology, Llc Use of bimodal carbon distribution in compacts for producing metallic iron nodules
JP5677884B2 (ja) * 2011-04-11 2015-02-25 新日鉄住金エンジニアリング株式会社 連続加熱処理炉の炉温設定方法及び炉温制御方法
JP5957348B2 (ja) * 2012-09-21 2016-07-27 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 部分還元鉄製造装置
US9534275B2 (en) 2013-03-06 2017-01-03 Midrex Technologies, Inc. Methods and systems for reducing chromium containing raw material
EP3986596B1 (en) 2019-08-23 2023-07-12 John W. SCHULTES Method and a direct reduction plant for producing direct reduced iron

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Also Published As

Publication number Publication date
DE69809883D1 (de) 2003-01-16
US5730775A (en) 1998-03-24
EP0947586B1 (en) 2002-12-04
DE69809883T2 (de) 2003-10-09
CA2232275C (en) 2001-10-23
WO1999046410A1 (en) 1999-09-16
TW442573B (en) 2001-06-23
ATE229084T1 (de) 2002-12-15
CA2232275A1 (en) 1999-09-17
AU6760598A (en) 1999-09-27
EP0947586A1 (en) 1999-10-06

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