ATE484600T1 - APPARATUS FOR DIRECT PRODUCTION OF MOLTEN IRON USING FINE OR COARSE COAL AND FINE IRON ORES, METHOD THEREOF, STEEL PLANT INTEGRATED THEREFROM AND METHOD THEREOF - Google Patents

APPARATUS FOR DIRECT PRODUCTION OF MOLTEN IRON USING FINE OR COARSE COAL AND FINE IRON ORES, METHOD THEREOF, STEEL PLANT INTEGRATED THEREFROM AND METHOD THEREOF

Info

Publication number
ATE484600T1
ATE484600T1 AT04808323T AT04808323T ATE484600T1 AT E484600 T1 ATE484600 T1 AT E484600T1 AT 04808323 T AT04808323 T AT 04808323T AT 04808323 T AT04808323 T AT 04808323T AT E484600 T1 ATE484600 T1 AT E484600T1
Authority
AT
Austria
Prior art keywords
fine
iron
manufacturing
melter
briquettes
Prior art date
Application number
AT04808323T
Other languages
German (de)
Inventor
Chang Oh Kang
Deuk Chae Kim
Hoo Geun Lee
Sang Hoon Joo
Myoung Kyun Shin
Jin Tae Kim
Gu Lee
Sang Hyun Kim
Wan Gi Kim
Thomas Eder
Franz Hauzenberger
Robert Millner
Johannes Schenk
Martin Schmidt
Kurt Wieder
Johann Wurm
Karl Zehetbauer
Original Assignee
Posco
Voest Alpine Ind Anlagen
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 Posco, Voest Alpine Ind Anlagen filed Critical Posco
Priority claimed from PCT/KR2004/003192 external-priority patent/WO2005054520A1/en
Application granted granted Critical
Publication of ATE484600T1 publication Critical patent/ATE484600T1/en

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
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • C21B13/143—Injection of partially reduced ore into a molten bath
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0033—In fluidised bed furnaces or apparatus containing a dispersion of the 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
    • C21B13/0073—Selection or treatment of the reducing gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0086—Conditioning, transformation of reduced iron ores
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0075—Treating in a ladle furnace, e.g. up-/reheating of molten steel within the ladle
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacture Of Iron (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

Provided is an apparatus for manufacturing molten iron using directly fine or lump coals and fine iron-containing ores, a method thereof, an integrated steel mill using the same, and a method thereof.. The method of manufacturing the molten iron comprises the steps of: manufacturing iron-containing mixture by mixing fine iron-containing ores and supplementary raw materials and by drying the resultant mixture, converting the iron-containing mixture to a reduced material by reducing and sintering while passing the iron-containing mixture through multi-stage fluidizedbed reactor unit, which are sequentially connected to each other, manufacturing briquettes by briquetting the reduced material at high temperature, forming a coal packed bed by charging lump coals and briquettes which are made by briquetting fine coals, into a melter-gasifier as heat sources for melting the briquettes, і manufacturing molten iron by charging the briquettes into the melter-gasifier connected to the multi-stage fluidized-bed reactor unit and by supplying oxygen into the melter-gasifier, and supplying reducing coal-gas exhausted from the melter-gasifier into the multi-stage fluidized-bed reactor unit.
AT04808323T 2003-12-05 2004-12-06 APPARATUS FOR DIRECT PRODUCTION OF MOLTEN IRON USING FINE OR COARSE COAL AND FINE IRON ORES, METHOD THEREOF, STEEL PLANT INTEGRATED THEREFROM AND METHOD THEREOF ATE484600T1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20030088033 2003-12-05
KR20030088035 2003-12-05
KR1020040101147A KR101128939B1 (en) 2003-12-05 2004-12-03 An apparatus for manufacturing a molten iron directly using fine or lump coals and fine iron ores, the method thereof, the integrated steel mill using the same and the method thereof
PCT/KR2004/003192 WO2005054520A1 (en) 2003-12-05 2004-12-06 An apparatus for manufacturing a molten iron directly using fine or lump coals and fine iron ores, the method thereof, the integrated steel mill using the same and the method thereof

Publications (1)

Publication Number Publication Date
ATE484600T1 true ATE484600T1 (en) 2010-10-15

Family

ID=37250048

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04808323T ATE484600T1 (en) 2003-12-05 2004-12-06 APPARATUS FOR DIRECT PRODUCTION OF MOLTEN IRON USING FINE OR COARSE COAL AND FINE IRON ORES, METHOD THEREOF, STEEL PLANT INTEGRATED THEREFROM AND METHOD THEREOF

Country Status (6)

Country Link
KR (1) KR101128939B1 (en)
CN (1) CN102031324B (en)
AT (1) ATE484600T1 (en)
DE (1) DE602004029605D1 (en)
RU (1) RU2339702C2 (en)
UA (1) UA84305C2 (en)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100711777B1 (en) * 2005-12-26 2007-04-25 주식회사 포스코 Method for manufacturing molten irons improving charging method and apparatus for manufacturing molten irons using the same
KR100711774B1 (en) 2005-12-26 2007-04-25 주식회사 포스코 Apparatus for manufacturing molten irons to improve charging structure of reduced materials
KR100797824B1 (en) 2006-12-18 2008-01-24 주식회사 포스코 Ironmaking apparatus directly using coals and fine ores
WO2008078891A1 (en) * 2006-12-22 2008-07-03 Posco Apparatus and method for manufacturing molten iron
KR100840233B1 (en) * 2006-12-27 2008-06-20 주식회사 포스코 Apparatus and method for manufacturing molten irons
KR100840231B1 (en) * 2006-12-26 2008-06-20 주식회사 포스코 Apparatus and method for manufacturing molten irons
KR100864458B1 (en) * 2006-12-27 2008-10-20 주식회사 포스코 Apparatus and method for manufacturing molten irons
KR100840250B1 (en) * 2006-12-27 2008-06-20 주식회사 포스코 Method for manufacturing molten irons
KR100840265B1 (en) * 2006-12-27 2008-06-20 주식회사 포스코 Apparatus for collecting fine powders and apparatus for manufacturing molten irons having the same
KR100851806B1 (en) * 2006-12-28 2008-08-13 주식회사 포스코 Apparatus for manufacturing molten irons and method for manufacturing molten irons using the same
KR100948929B1 (en) 2007-12-24 2010-03-23 주식회사 포스코 Reducing furnace and apparatus for manufacturing molten iron comprising the same
KR100930680B1 (en) * 2007-12-26 2009-12-09 주식회사 포스코 Molten iron manufacturing equipment and molten iron manufacturing method
KR100864459B1 (en) * 2008-09-16 2008-10-20 주식회사 포스코 Apparatus and method for manufacturing molten irons
KR101050803B1 (en) 2009-09-17 2011-07-20 주식회사 포스코 Reduced iron production apparatus and its manufacturing method
KR101289217B1 (en) * 2010-12-28 2013-07-29 주식회사 포스코 Integrated iron and steelmaking system and method
KR20130072684A (en) * 2011-12-22 2013-07-02 주식회사 포스코 Tuyere assembly for injecting oxygen and pulverized coal into furnace and apparatus for manufacturing molten iron using the same
KR101359115B1 (en) * 2011-12-28 2014-02-06 주식회사 포스코 Integrated iron and steelmaking system and method
KR101316382B1 (en) * 2011-12-28 2013-10-08 주식회사 포스코 Integrated iron and steelmaking system and method
WO2013100520A1 (en) * 2011-12-28 2013-07-04 주식회사 포스코 Integrated steelmaking system and integrated steelmaking method
KR101321928B1 (en) * 2012-05-16 2013-10-28 주식회사 포스코 Apparatus for manufacturing molten irons and method for manufacturing molten irons using the same
KR101356068B1 (en) * 2012-08-21 2014-01-28 주식회사 포스코 Apparatus for manufacturing molten irons and method for manufacturing the same
KR101429636B1 (en) * 2012-08-21 2014-08-13 주식회사 포스코 Apparatus for manufacturing molten irons and method for manufacturing the same
KR101421208B1 (en) * 2012-11-07 2014-07-23 주식회사 포스코 Selection method of carboneous materials and manufacturing method of reduced iron using the same
KR101384800B1 (en) * 2012-12-27 2014-04-14 주식회사 포스코 Apparatus for manufacturing molten iron and method for manufacturing thereof
KR101504705B1 (en) * 2013-07-29 2015-03-30 주식회사 포스코 An apparatus for manufacturing a molten iron
WO2016072613A1 (en) * 2014-11-06 2016-05-12 주식회사 포스코 Composite molten iron manufacturing apparatus
KR101660696B1 (en) * 2015-09-08 2016-09-28 주식회사 포스코 Tar decomposition device, apparatus and method for manufacturing molten irons
KR102042845B1 (en) * 2017-11-27 2019-11-08 한국산업기술대학교산학협력단 METHOD FOR RECOVERING Fe FROM CONVERTER SLAG CONTAINING Fe AND REDUCING AGENT FOR THE METHOD
KR102089495B1 (en) * 2017-12-22 2020-04-28 주식회사 포스코 Apparatus for manufacturing molten irons
KR102176345B1 (en) * 2018-10-17 2020-11-09 주식회사 포스코 Manufacturing appratus of molten iron reducing emission of carbon dioxide and manufacturing method of the same
KR102231655B1 (en) * 2018-12-18 2021-03-23 주식회사 포스코 Manufacturing apparatus of molten iron and manufacturing method of molten iron
IT201900002081A1 (en) * 2019-02-13 2020-08-13 Danieli Off Mecc DIRECT REDUCTION PLANT AND RELATED PROCESS
KR20240018206A (en) * 2022-08-02 2024-02-13 주식회사 포스코 Facility for manufacturing molten iron and method for manufacturing molten iron

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100276344B1 (en) * 1996-12-24 2000-12-15 이구택 Smelting reduction process
AT405840B (en) * 1997-02-11 1999-11-25 Voest Alpine Ind Anlagen METHOD AND INSTALLATION FOR THE PRODUCTION OF LIQUID PIPE IRON OR LIQUID STEEL PRE-PRODUCTS
AT407053B (en) * 1997-07-04 2000-12-27 Voest Alpine Ind Anlagen METHOD AND SYSTEM FOR THE PRODUCTION OF A METAL MELT IN A MELTING-UP CARBURETOR USING FINE COAL
KR20010065011A (en) * 1999-12-20 2001-07-11 이구택 Apparatus for manufacturing molten pig iron, and its manufacturing method
AT409387B (en) * 2000-06-28 2002-07-25 Voest Alpine Ind Anlagen Process and installation for the gas reduction of particulate oxide-containing ores
KR100584745B1 (en) * 2001-12-21 2006-05-30 주식회사 포스코 An apparatus and method for recycling dust and sludge containing iron ironmaking process using coal and fine ore

Also Published As

Publication number Publication date
CN102031324A (en) 2011-04-27
KR20050054849A (en) 2005-06-10
KR101128939B1 (en) 2012-03-28
RU2006119217A (en) 2008-01-10
RU2339702C2 (en) 2008-11-27
CN102031324B (en) 2015-05-20
UA84305C2 (en) 2008-10-10
DE602004029605D1 (en) 2010-11-25

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