DE69809883T2 - Verfahren und Vorrichtung zur schnellen Reduktion von Eisenerzen in einem Drehherdofen - Google Patents

Verfahren und Vorrichtung zur schnellen Reduktion von Eisenerzen in einem Drehherdofen

Info

Publication number
DE69809883T2
DE69809883T2 DE69809883T DE69809883T DE69809883T2 DE 69809883 T2 DE69809883 T2 DE 69809883T2 DE 69809883 T DE69809883 T DE 69809883T DE 69809883 T DE69809883 T DE 69809883T DE 69809883 T2 DE69809883 T2 DE 69809883T2
Authority
DE
Germany
Prior art keywords
compacts
hearth furnace
rotary hearth
iron ores
rapid reduction
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
DE69809883T
Other languages
English (en)
Other versions
DE69809883D1 (de
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
Publication of DE69809883D1 publication Critical patent/DE69809883D1/de
Application granted granted Critical
Publication of DE69809883T2 publication Critical patent/DE69809883T2/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
    • C21B13/10—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
DE69809883T 1994-12-16 1998-03-18 Verfahren und Vorrichtung zur schnellen Reduktion von Eisenerzen in einem Drehherdofen Expired - Lifetime DE69809883T2 (de)

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 (de) 1994-12-16 1998-03-18 Verfahren und Vorrichtung zur schnellen Reduktion von Eisenerzen in einem Drehherdofen
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 (2)

Publication Number Publication Date
DE69809883D1 DE69809883D1 (de) 2003-01-16
DE69809883T2 true DE69809883T2 (de) 2003-10-09

Family

ID=33437265

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69809883T Expired - Lifetime DE69809883T2 (de) 1994-12-16 1998-03-18 Verfahren und Vorrichtung zur schnellen Reduktion von Eisenerzen in einem Drehherdofen

Country Status (9)

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

Families Citing this family (60)

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AUPN461695A0 (en) * 1995-08-07 1995-08-31 Technological Resources Pty Limited A process for reducing iron oxides
CN1080315C (zh) 1996-03-15 2002-03-06 株式会社神户制钢所 生产金属铁的方法及设备
US6506231B2 (en) 1996-03-15 2003-01-14 Kabushiki Kaisha Kobe Seiko Sho Method and apparatus for making metallic iron
JP3296974B2 (ja) * 1996-08-15 2002-07-02 株式会社神戸製鋼所 直接還元法及び回転床炉
WO1998021372A1 (fr) * 1996-11-11 1998-05-22 Sumitomo Metal Industries, Ltd. Procede et dispositif de fabrication de fer reduit
US5951740A (en) * 1997-06-16 1999-09-14 Praxair Technology, Inc. Production of direct reduced iron with reduced fuel consumption and emission of carbon monoxide
EP1770175A1 (de) * 1997-09-30 2007-04-04 JFE Steel Corporation Drehherdofen zur Reduktion der Oxide
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 (de) * 1998-03-24 1999-10-27 KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. Verfahren zur Herstellung von reduzierten Eisenagglomeraten
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
US6413295B2 (en) 1998-11-12 2002-07-02 Midrex International B.V. Rotterdam, Zurich Branch Iron production method of operation in a rotary hearth furnace and improved furnace apparatus
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 (de) * 2000-10-30 2009-05-13 Nippon Steel Corporation METALLOXID ENTHALTENDES GRÜNPELLET FÜR REDUKTIONSOFEN und VERFAHREN ZU SEINER HERSTELLUNG, VERFAHREN ZU SEINER REDUKTION
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
US8021460B2 (en) * 2006-07-26 2011-09-20 Nu-Iron Technology, Llc System and method for producing metallic iron nodules
JP4976822B2 (ja) * 2006-11-14 2012-07-18 株式会社神戸製鋼所 粒状金属鉄の製造方法およびその装置
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
US7938882B2 (en) * 2007-04-02 2011-05-10 Midrex Technologies, Inc. Method and system for the supply of hot direct reduced iron for multiple uses
JP4317579B2 (ja) 2007-09-05 2009-08-19 新日本製鐵株式会社 還元鉄成形体の製造方法、及び銑鉄の製造方法
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
EP2325341A1 (de) 2008-01-30 2011-05-25 Nu-Iron Technology, Inc Verfahren und System zur Herstellung metallischer Ionenklumpen
CA2661419A1 (en) 2008-04-03 2009-10-03 Nu-Iron Technology, Llc System and method for producing metallic iron
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 (de) 2019-08-23 2023-07-12 John W. SCHULTES Verfahren und eine direkte reduzierungsanlage zur herstellung von direkt reduziertem eisen

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US3443931A (en) * 1965-09-10 1969-05-13 Midland Ross Corp Process for making metallized pellets from iron oxide containing material
US3452972A (en) * 1966-06-23 1969-07-01 Donald Beggs Furnace hearth
US3836353A (en) * 1968-10-18 1974-09-17 C Holley Pellet reclamation process
US3988012A (en) * 1972-02-16 1976-10-26 Emile Joseph Jemal Rotary hearth
US4622905A (en) * 1985-03-04 1986-11-18 International Metals Reclamation Co., Inc. Furnacing
US4636127A (en) * 1985-04-03 1987-01-13 The International Metals Reclamation Co., Inc. Conveying screw for furnace
US4597564A (en) * 1985-05-23 1986-07-01 The International Metals Reclamation Company, Inc. Rotary hearth
US4701214A (en) * 1986-04-30 1987-10-20 Midrex International B.V. Rotterdam Method of producing iron using rotary hearth and apparatus
US4676741A (en) * 1986-10-22 1987-06-30 The International Metals Reclamation Company, Inc. Radiantly heated furnace
US5186741A (en) * 1991-04-12 1993-02-16 Zia Patent Company Direct reduction process in a rotary hearth furnace
US5567224A (en) * 1995-06-06 1996-10-22 Armco Inc. Method of reducing metal oxide in a rotary hearth furnace heated by an oxidizing flame
US5601631A (en) * 1995-08-25 1997-02-11 Maumee Research & Engineering Inc. Process for treating metal oxide fines

Also Published As

Publication number Publication date
DE69809883D1 (de) 2003-01-16
US5730775A (en) 1998-03-24
EP0947586B1 (de) 2002-12-04
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
ES2189022T3 (es) 2003-07-01
EP0947586A1 (de) 1999-10-06

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: PATENTANWAELTE VON KREISLER, SELTING, WERNER ET COL