BR9916605A - Método de produção de ferro por operação de um forno de cadinho giratório e um aparelho de forno melhorado - Google Patents

Método de produção de ferro por operação de um forno de cadinho giratório e um aparelho de forno melhorado

Info

Publication number
BR9916605A
BR9916605A BR9916605-4A BR9916605A BR9916605A BR 9916605 A BR9916605 A BR 9916605A BR 9916605 A BR9916605 A BR 9916605A BR 9916605 A BR9916605 A BR 9916605A
Authority
BR
Brazil
Prior art keywords
iron
crucible
carbon
oxide
oven
Prior art date
Application number
BR9916605-4A
Other languages
English (en)
Other versions
BR9916605B1 (pt
Inventor
David C Meissner
Glenn E Hoffman
Kyle J Shoop
Takuya Negami
Akira Uragami
Yasuhiro Tanigaki
Shuzo Ito
Isao Kobayashi
Osamu Tsuge
Koji Tokuda
Shoichi Kikuchi
Original Assignee
Midrex Int Bv Zuerich
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 Int Bv Zuerich filed Critical Midrex Int Bv Zuerich
Publication of BR9916605A publication Critical patent/BR9916605A/pt
Publication of BR9916605B1 publication Critical patent/BR9916605B1/pt

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
    • 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)
  • Manufacture And Refinement Of Metals (AREA)
  • Tunnel Furnaces (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)

Abstract

''MéTODO DE PRODUçãO DE FERRO POR OPERAçãO DE UM FORNO DE CADINHO GIRATóRIO E UM APARELHO DE FORNO MELHORADO'' A presente invenção se trata de um aparelho e um método para redução direta de óxido de ferro utilizando um forno de cadinho giratório para formar botões metálicos de ferro contendo carbono de alta pureza. A capa de cadinho pode ser uma capa de cadinho refratária ou vítrea de compostos de óxido de ferro, carbono, e sílica. Adicionalmente, materiais de revestimento podem ser introduzidos sobre a capa de cadinho refratária ou vítrea antes de os materiais de minério de óxido de ferro e carbono serem adicionados, sendo que os materiais de revestimento impedem o ataque do ferro fundido sobre a capa de cadinho. Os materiais de revestimento podem incluir compostos de carbono, óxido de ferro, óxido de silício, óxido de magnésio, e/ou óxido de alumínio. Os materiais de revestimento podem ser colocados na forma sólida ou de pasta sobre a capa de cadinho e sendo aquecidos para prover uma camada protetiva sobre a qual os materiais de minério de óxido de ferro e carbono são colocados. O óxido de ferro é reduzido e forma glóbulos fundidos de ferro e carbono residual de alta pureza, que permanecem separados da capa de cadinho. Um aparelho melhorado inclui uma placa de resfriamento colocada muito próxima à capa de cadinho refratária ou vítrea, resfriado os glóbulos fundidos para formar botões metálicos de ferro que são removidos a partir da capa de cadinho. As melhorias devidas ao aparelho e ao método de produção da presente invenção provêem botões sólidos de ferro e carbono de alta pureza, que são separados dos particulados de escória e descarregados, sem ocorrer perdas significativas de produtos de ferro, em uma superfície interna do forno.
BRPI9916605-4A 1998-11-12 1999-11-12 mÉtodo para produzir um produto sàlido de ferro e carbono e aparelho para um mÉtodo de reduÇço direta de material de àxido de ferro. BR9916605B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10804598P 1998-11-12 1998-11-12
US09/266,989 US6413295B2 (en) 1998-11-12 1999-03-12 Iron production method of operation in a rotary hearth furnace and improved furnace apparatus
PCT/EP1999/008726 WO2000029628A1 (en) 1998-11-12 1999-11-12 Iron production method of operation in a rotary hearth furnace and improved furnace apparatus

Publications (2)

Publication Number Publication Date
BR9916605A true BR9916605A (pt) 2001-08-14
BR9916605B1 BR9916605B1 (pt) 2009-01-13

Family

ID=26805466

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9916605-4A BR9916605B1 (pt) 1998-11-12 1999-11-12 mÉtodo para produzir um produto sàlido de ferro e carbono e aparelho para um mÉtodo de reduÇço direta de material de àxido de ferro.

Country Status (19)

Country Link
US (1) US6413295B2 (pt)
EP (1) EP1137817B1 (pt)
JP (1) JP4231960B2 (pt)
KR (1) KR100417201B1 (pt)
CN (1) CN1289693C (pt)
AR (1) AR021245A1 (pt)
AT (1) ATE241020T1 (pt)
AU (1) AU760611B2 (pt)
BR (1) BR9916605B1 (pt)
CA (1) CA2348940C (pt)
CZ (1) CZ20011580A3 (pt)
DE (1) DE69908176T2 (pt)
ES (1) ES2199599T3 (pt)
HU (1) HUP0105164A3 (pt)
ID (1) ID28563A (pt)
PE (1) PE20001247A1 (pt)
PL (1) PL194677B1 (pt)
SK (1) SK6112001A3 (pt)
WO (1) WO2000029628A1 (pt)

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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
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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
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
JP4167113B2 (ja) * 2003-04-17 2008-10-15 株式会社神戸製鋼所 還元鉄の製造方法及び装置
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CN103667675A (zh) * 2013-08-01 2014-03-26 北京神雾环境能源科技集团股份有限公司 红土镍矿处理方法
CN103667743B (zh) * 2013-09-16 2016-08-17 江苏省冶金设计院有限公司 红土镍矿处理方法
CN103667742B (zh) * 2013-09-16 2016-03-02 江苏省冶金设计院有限公司 红土镍矿处理方法
CN103695632B (zh) * 2013-12-31 2016-05-04 泰州振昌工业废渣综合利用有限责任公司 一种使用铁矿尾渣调节熔分还原改性炉造渣碱度的方法
CN106148624A (zh) * 2016-08-01 2016-11-23 江苏省冶金设计院有限公司 直接还原含铁原料的方法和系统
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Also Published As

Publication number Publication date
US6413295B2 (en) 2002-07-02
ATE241020T1 (de) 2003-06-15
KR100417201B1 (ko) 2004-02-05
KR20010080423A (ko) 2001-08-22
CA2348940C (en) 2005-02-15
AU760611B2 (en) 2003-05-22
PL194677B1 (pl) 2007-06-29
DE69908176T2 (de) 2004-03-18
PE20001247A1 (es) 2000-12-05
BR9916605B1 (pt) 2009-01-13
HUP0105164A2 (hu) 2002-04-29
CN1325459A (zh) 2001-12-05
EP1137817B1 (en) 2003-05-21
ES2199599T3 (es) 2004-02-16
CZ20011580A3 (cs) 2002-03-13
CA2348940A1 (en) 2000-05-25
CN1289693C (zh) 2006-12-13
DE69908176D1 (de) 2003-06-26
US20010052273A1 (en) 2001-12-20
WO2000029628A1 (en) 2000-05-25
JP2000144224A (ja) 2000-05-26
HUP0105164A3 (en) 2002-06-28
EP1137817A1 (en) 2001-10-04
PL348435A1 (en) 2002-05-20
SK6112001A3 (en) 2002-01-07
JP4231960B2 (ja) 2009-03-04
ID28563A (id) 2001-05-31
AU1505800A (en) 2000-06-05
AR021245A1 (es) 2002-07-03

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B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

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