ATE229084T1 - 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
ATE229084T1
ATE229084T1 AT98104960T AT98104960T ATE229084T1 AT E229084 T1 ATE229084 T1 AT E229084T1 AT 98104960 T AT98104960 T AT 98104960T AT 98104960 T AT98104960 T AT 98104960T AT E229084 T1 ATE229084 T1 AT E229084T1
Authority
AT
Austria
Prior art keywords
compacts
iron ore
rapid reduction
rotary heart
hearth
Prior art date
Application number
AT98104960T
Other languages
English (en)
Inventor
David Charles Meissner
Thomas H Boyd
James A Lepinski
Jimmy D Sloop
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 ATE229084T1 publication Critical patent/ATE229084T1/de

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Tunnel Furnaces (AREA)
AT98104960T 1994-12-16 1998-03-18 Verfahren und vorrichtung zur schnellen reduktion von eisenerzen in einem drehherdofen ATE229084T1 (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 (1)

Publication Number Publication Date
ATE229084T1 true ATE229084T1 (de) 2002-12-15

Family

ID=33437265

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98104960T ATE229084T1 (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 (62)

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AUPN461695A0 (en) * 1995-08-07 1995-08-31 Technological Resources Pty Limited A process for reducing iron oxides
US6506231B2 (en) 1996-03-15 2003-01-14 Kabushiki Kaisha Kobe Seiko Sho Method and apparatus for making metallic iron
AU715276C (en) 1996-03-15 2007-05-03 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
BR9707133A (pt) * 1996-11-11 1999-05-18 Sumitomo Metal Ind Processo para produzir ferro reduzido e metal quente a partir de óxidos de ferro finos e instalação para executar o processo
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
US6270552B1 (en) * 1997-09-30 2001-08-07 Kawasaki Steel Corporation Rotary hearth furnace for reducing oxides, and method of operating the furnace
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
CN1283222A (zh) * 1997-12-26 2001-02-07 日本钢管株式会社 铁水精练方法及生产铁水的熔融还原方法
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
ATE332982T1 (de) 1998-10-30 2006-08-15 Midrex Technologies Inc Verfahren zur herstellung von eisenschmelze im duplexofen
US6685761B1 (en) 1998-10-30 2004-02-03 Midrex International B.V. Rotterdam, Zurich Branch Method for producing beneficiated titanium oxides
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
AU5289499A (en) * 1999-07-28 2001-02-19 Sidmar N.V. Metal oxide reduction method and device therefor
CN1306045C (zh) 1999-08-30 2007-03-21 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
EP1187941B1 (de) * 2000-03-30 2007-01-03 Kabushiki Kaisha Kobe Seiko Sho Verfahren zur herstellung von metallischen eisen
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
CN1246485C (zh) * 2000-10-30 2006-03-22 新日本制铁株式会社 用于还原炉的含氧化金属的未加工颗粒的制造方法及其还原方法
CN1221670C (zh) * 2000-11-10 2005-10-05 新日本制铁株式会社 回转炉底式还原炉的作业方法和回转炉底式还原炉设备
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
JP4267843B2 (ja) * 2001-08-31 2009-05-27 株式会社神戸製鋼所 金属鉄の製法
EP2341153A1 (de) * 2001-09-27 2011-07-06 Nippon Steel Corporation Verfahren zum Trocknen eines metalloxidhaltigen Presskörpers, Verfahren zur Metalloxidreduktion und Drehherd-Metallreduktionsofen
US8197561B2 (en) * 2001-10-10 2012-06-12 River Basin Energy, Inc. Process for drying coal
EP1529121A4 (de) * 2002-03-19 2007-03-07 Superior Graphite Co Verfahren und vorrichtung zur direktreduktion von eisenoxiden in einem elektrothermischen wirbelbett und daraus resultierendes produkt
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
US7695544B2 (en) 2004-12-07 2010-04-13 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
WO2007027998A2 (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
US8097065B2 (en) * 2006-10-04 2012-01-17 Nu-Iron Technology, Llc System and method for producing metallic iron
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
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
EP2325341A1 (de) * 2008-01-30 2011-05-25 Nu-Iron Technology, Inc Verfahren und System zur Herstellung metallischer Ionenklumpen
CZ301924B6 (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
BR112015021356A2 (pt) 2013-03-06 2017-07-18 Midrex Technologies Inc método para reduzir um material contendo cromo
ES2953872T3 (es) 2019-08-23 2023-11-16 John W Schultes Procedimiento y una planta de reducción directa para producir hierro reducido directo
US20240279758A1 (en) * 2021-06-17 2024-08-22 Jfe Steel Corporation Method for producing agglomerated ore, method for producing reduced iron, agglomerated ore, sintering machine and pellet firing furnace
WO2025199377A1 (en) * 2024-03-21 2025-09-25 Romain Frieden Production of direct reduced iron in rotary hearth furnace with spiral shaped combustion chamber

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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
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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
WO1999046410A1 (en) 1999-09-16
DE69809883D1 (de) 2003-01-16
CA2232275A1 (en) 1999-09-17
CA2232275C (en) 2001-10-23
EP0947586A1 (de) 1999-10-06
ES2189022T3 (es) 2003-07-01
AU6760598A (en) 1999-09-27
DE69809883T2 (de) 2003-10-09
EP0947586B1 (de) 2002-12-04
US5730775A (en) 1998-03-24
TW442573B (en) 2001-06-23

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