BR9806224A - Forno de soleira rotativo para reduzir óxidos e seu método operacional. - Google Patents

Forno de soleira rotativo para reduzir óxidos e seu método operacional.

Info

Publication number
BR9806224A
BR9806224A BR9806224-7A BR9806224A BR9806224A BR 9806224 A BR9806224 A BR 9806224A BR 9806224 A BR9806224 A BR 9806224A BR 9806224 A BR9806224 A BR 9806224A
Authority
BR
Brazil
Prior art keywords
threshold
fine
reducing
iron ore
operating method
Prior art date
Application number
BR9806224-7A
Other languages
English (en)
Inventor
Kanji Takeda
Yoshitaka Sawa
Tetsuya Yamamoto
Kikui Tetsuya
Original Assignee
Kawasaki Steel Co
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 JP26541097A external-priority patent/JP3449195B2/ja
Priority claimed from JP26541197A external-priority patent/JP3451901B2/ja
Application filed by Kawasaki Steel Co filed Critical Kawasaki Steel Co
Publication of BR9806224A publication Critical patent/BR9806224A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/02—Making special pig-iron, e.g. by applying additives, e.g. oxides of other metals
    • C21B5/023—Injection of the additives into the melting part
    • C21B5/026—Injection of the additives into the melting part of plastic material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • 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
    • 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)
  • Tunnel Furnaces (AREA)

Abstract

Patente de Invenção: <B>"FORNO DE SOLEIRA ROTATIVO PARA REDUZIR óXIDOS E SEU MéTODO OPERACIONAL"<D>. A presente invenção provê um forno de soleira móvel e um método operacional do mesmo, que, quando empilhando uma camada que consiste de uma mistura de óxidos tais como um minério de ferro fino e um material redutor sólido fino sobre soleira móvel horizontalmente, e reduzindo os óxidos através de transferência de calor radiante desde a parte superior da soleira, é baseado em um processo compreendendo as etapas de fundir o produto redutor no caminho para uma porta de descarga, e causar agregação e separação da escória no produto redutor. Quando arrumando a camada da mistura consistindo de um minério de ferro fino e um material redutor sólido fino sobre a soleira móvel horizontalmente e reduzindo o minério de ferro fino por transferência de calor radiante desde acima da soleira, um carvão aninal fino é arrumado primeiramente, antes de empilhar a camada da mistura sobre a soleira, e fundindo o produto de redução sobre a soleira pelo menos uma vez. O pó misturado contendo o minério de ferro fino e o material redutor sólido fino é dividido em pequenos blocos, e a soleira é ponteada com estes pequenos blocos de forma a não estar em contado direto com a soleira, via o material redutor sólido, fino, e o ferro reduzido é fundido na soleira.
BR9806224-7A 1997-09-30 1998-03-27 Forno de soleira rotativo para reduzir óxidos e seu método operacional. BR9806224A (pt)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP26541097A JP3449195B2 (ja) 1997-09-30 1997-09-30 移動型炉床炉の操業方法
JP26540697 1997-09-30
JP26541197A JP3451901B2 (ja) 1997-09-30 1997-09-30 移動型炉床炉の操業方法
PCT/JP1998/001399 WO1999016913A1 (fr) 1997-09-30 1998-03-27 Four a sole mobile pour la reduction d'oxydes, et son procede de fonctionnement

Publications (1)

Publication Number Publication Date
BR9806224A true BR9806224A (pt) 2000-04-18

Family

ID=27335378

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9806224-7A BR9806224A (pt) 1997-09-30 1998-03-27 Forno de soleira rotativo para reduzir óxidos e seu método operacional.

Country Status (8)

Country Link
US (1) US6270552B1 (pt)
EP (2) EP0969105B1 (pt)
KR (1) KR100388329B1 (pt)
BR (1) BR9806224A (pt)
DE (1) DE69838246T2 (pt)
ID (1) ID22491A (pt)
MY (1) MY118376A (pt)
WO (1) WO1999016913A1 (pt)

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ZA995438B (en) 1998-08-27 2000-03-20 Kobe Steel Ltd Method for operating moving hearth reducing furnace.
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
CA2398266C (en) * 2000-01-28 2009-02-03 Pacific Edge Holdings Pty. Ltd. Process for upgrading low rank carbonaceous material
PL201389B1 (pl) 2000-03-30 2009-04-30 Kobe Seiko Sho Kobe Steel Kk Sposób wytwarzania granulowanego metalicznego żelaza
JP2001279313A (ja) 2000-03-30 2001-10-10 Midrex Internatl Bv 溶融金属鉄の製法
JP2001288504A (ja) 2000-03-31 2001-10-19 Midrex Internatl Bv 溶融金属鉄の製造方法
TW562860B (en) * 2000-04-10 2003-11-21 Kobe Steel Ltd Method for producing reduced iron
JP4757982B2 (ja) * 2000-06-28 2011-08-24 株式会社神戸製鋼所 粒状金属鉄の歩留まり向上方法
JP4330257B2 (ja) * 2000-08-09 2009-09-16 株式会社神戸製鋼所 金属鉄の製法
AU2002211639A1 (en) * 2000-10-09 2002-04-22 Tricardia, L.L.C. Material useable for medical balloons and catheters
US20020053307A1 (en) 2000-10-31 2002-05-09 Natsuo Ishiwata Method for discharging reduced product from a moveable-hearth furnace and a discharging device
DE60233021D1 (de) 2001-05-30 2009-09-03 Kobe Steel Ltd Verfahren zur Herstellung von reduzierten Metallen
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
JP4267843B2 (ja) 2001-08-31 2009-05-27 株式会社神戸製鋼所 金属鉄の製法
JP4256645B2 (ja) * 2001-11-12 2009-04-22 株式会社神戸製鋼所 金属鉄の製法
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
JP4167101B2 (ja) * 2003-03-20 2008-10-15 株式会社神戸製鋼所 粒状金属鉄の製法
EP1515360B1 (en) * 2003-06-13 2011-01-19 Fei Company Method and apparatus for manipulating a microscopic sample
US20050086874A1 (en) * 2003-10-24 2005-04-28 Diehl Roy M. Flexible, adaptable loft city
US7413592B2 (en) * 2004-03-31 2008-08-19 Nu-Iron Technology, Llc Linear hearth furnace system and methods regarding same
JP2008523247A (ja) * 2004-12-07 2008-07-03 ニュー−アイロン テクノロジー リミテッド ライアビリティー カンパニー 金属鉄ナゲットを生成するための方法およびシステム
US8470068B2 (en) * 2004-12-07 2013-06-25 Nu-Iron Technology, Llc Method and system for producing metallic iron nuggets
US7632330B2 (en) * 2006-03-13 2009-12-15 Michigan Technological University Production of iron using environmentally-benign renewable or recycled reducing agents
US8021460B2 (en) * 2006-07-26 2011-09-20 Nu-Iron Technology, Llc System and method for producing metallic iron nodules
PL2247759T3 (pl) * 2008-01-30 2015-08-31 Nu Iron Tech Llc Sposób i układ do wytwarzania bryłek metalicznego żelaza
CA2661419A1 (en) * 2008-04-03 2009-10-03 Nu-Iron Technology, Llc System and method for producing metallic iron
CN102272337A (zh) * 2009-01-23 2011-12-07 株式会社神户制钢所 粒状铁的制造方法
JP2010261101A (ja) * 2009-04-07 2010-11-18 Mitsutaka Hino 金属鉄の製法
US8287621B2 (en) 2010-12-22 2012-10-16 Nu-Iron Technology, Llc Use of bimodal carbon distribution in compacts for producing metallic iron nodules
CN102589285B (zh) * 2012-03-09 2013-11-20 江苏沙钢集团有限公司 一种转底炉水封槽排渣装置
US9534275B2 (en) 2013-03-06 2017-01-03 Midrex Technologies, Inc. Methods and systems for reducing chromium containing raw material
CN105907405A (zh) * 2016-06-15 2016-08-31 江苏省冶金设计院有限公司 处理低变质煤和含铁物料的转底炉及方法
CN114737004B (zh) * 2022-04-15 2024-02-09 中钢设备有限公司 铁矿直接炼钢系统和铁矿直接炼钢方法

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Publication number Priority date Publication date Assignee Title
US1885381A (en) * 1930-06-30 1932-11-01 Kenneth M Simpson Process for the production of iron
US3443931A (en) * 1965-09-10 1969-05-13 Midland Ross Corp Process for making metallized pellets from iron oxide containing material
US4622905A (en) * 1985-03-04 1986-11-18 International Metals Reclamation Co., Inc. Furnacing
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
BE1008397A6 (fr) * 1994-07-13 1996-05-07 Centre Rech Metallurgique Procede pour fabriquer une eponge de fer a basse teneur en soufre.
US5730775A (en) * 1994-12-16 1998-03-24 Midrex International B.V. Rotterdam, Zurich Branch Method for rapid reduction of iron oxide in a rotary hearth furnace
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
EP0969105A1 (en) 2000-01-05
EP0969105A4 (en) 2004-11-03
EP0969105B1 (en) 2007-08-15
KR20000069181A (ko) 2000-11-25
EP1770175A1 (en) 2007-04-04
WO1999016913A1 (fr) 1999-04-08
DE69838246T2 (de) 2008-01-10
DE69838246D1 (de) 2007-09-27
ID22491A (id) 1999-10-21
US6270552B1 (en) 2001-08-07
MY118376A (en) 2004-10-30
KR100388329B1 (ko) 2003-06-25

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Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
B25D Requested change of name of applicant approved
B25G Requested change of headquarter approved
B16A Patent or certificate of addition of invention granted
B21A Expiry acc. art. 78, item i of ipl- expiry of the term of protection