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WO2000047780A3 - Method and apparatus for preheating of direct reduced iron used as feed to an electric arc furnace - Google Patents

Method and apparatus for preheating of direct reduced iron used as feed to an electric arc furnace Download PDF

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Publication number
WO2000047780A3
WO2000047780A3 PCT/IB2000/000607 IB0000607W WO0047780A3 WO 2000047780 A3 WO2000047780 A3 WO 2000047780A3 IB 0000607 W IB0000607 W IB 0000607W WO 0047780 A3 WO0047780 A3 WO 0047780A3
Authority
WO
WIPO (PCT)
Prior art keywords
preheating
electric arc
reduced iron
feed
arc furnace
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.)
Ceased
Application number
PCT/IB2000/000607
Other languages
French (fr)
Other versions
WO2000047780A2 (en
Inventor
Juan A Villarreal-Trevino
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.)
Hylsa SA de CV
Original Assignee
Hylsa SA de CV
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 Hylsa SA de CV filed Critical Hylsa SA de CV
Priority to AU41391/00A priority Critical patent/AU4139100A/en
Publication of WO2000047780A2 publication Critical patent/WO2000047780A2/en
Publication of WO2000047780A3 publication Critical patent/WO2000047780A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • C21B13/14—Multi-stage processes processes carried out in different vessels or 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)
  • Furnace Details (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

A method and apparatus for preheating of direct reduced iron or DRI (10) prior to its introduction to a metallurgical furnace like an electric arc furnace (70) by contacting the DRI (10) with a non-oxidizing, reducing or carburing gas (44) at a high temperature so that electric demand in the furnace (70) can be reduced, the tap-to-tape time can be decreased, whereby the productivity of the furnace (70) as well as the carbon content of the DRI to be charged can be increased.
PCT/IB2000/000607 1999-02-02 2000-02-01 Method and apparatus for preheating of direct reduced iron used as feed to an electric arc furnace Ceased WO2000047780A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU41391/00A AU4139100A (en) 1999-02-02 2000-02-01 Method and apparatus for preheating of direct reduced iron used as feed to an electric arc furnace

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11828999P 1999-02-02 1999-02-02
US60/118,289 1999-02-02

Publications (2)

Publication Number Publication Date
WO2000047780A2 WO2000047780A2 (en) 2000-08-17
WO2000047780A3 true WO2000047780A3 (en) 2001-07-26

Family

ID=22377674

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2000/000607 Ceased WO2000047780A2 (en) 1999-02-02 2000-02-01 Method and apparatus for preheating of direct reduced iron used as feed to an electric arc furnace

Country Status (2)

Country Link
AU (1) AU4139100A (en)
WO (1) WO2000047780A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL1920075T3 (en) * 2006-01-04 2012-05-31 Saarstahl Ag Method for pre-heating iron agglomerates
RU2385947C2 (en) * 2006-01-04 2010-04-10 Саршталь Аг Method for pre-heating of metallised pellets or briquettes
CA3041361A1 (en) * 2016-10-24 2018-05-03 Technological Resources Pty. Limited Production of iron
CN114410873A (en) * 2021-12-28 2022-04-29 东北大学 Pure hydrogen shaft furnace iron-making device and method based on microwave preheating of iron-containing furnace charge

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4609400A (en) * 1984-08-02 1986-09-02 Intersteel Technology, Inc. Method and apparatus for preheating charge materials for continuous steelmaking
US4822411A (en) * 1986-05-07 1989-04-18 Voest-Alpine Aktiengesellschaft Integrated steel mill arrangement
US4931090A (en) * 1989-08-23 1990-06-05 Zia Technology, Inc. Pneumatic steelmaking vessel and method of producing steel
US5069716A (en) * 1989-12-22 1991-12-03 C.V.G. Siderurgica Del Orinoco, C.A. Process for the production of liquid steel from iron containing metal oxides
US5400358A (en) * 1992-10-13 1995-03-21 Consteel, S.A. Continuous scrap preheating
US5529599A (en) * 1995-01-20 1996-06-25 Calderon; Albert Method for co-producing fuel and iron
US5588982A (en) * 1995-05-01 1996-12-31 Alabama Power Company Process for producing foudry iron
US5603748A (en) * 1993-06-19 1997-02-18 Lurgi Metallurgie Gmbh Process and apparatus for a direct reduction of iron oxide containing materials to form Fe3 C

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4609400A (en) * 1984-08-02 1986-09-02 Intersteel Technology, Inc. Method and apparatus for preheating charge materials for continuous steelmaking
US4822411A (en) * 1986-05-07 1989-04-18 Voest-Alpine Aktiengesellschaft Integrated steel mill arrangement
US4931090A (en) * 1989-08-23 1990-06-05 Zia Technology, Inc. Pneumatic steelmaking vessel and method of producing steel
US5069716A (en) * 1989-12-22 1991-12-03 C.V.G. Siderurgica Del Orinoco, C.A. Process for the production of liquid steel from iron containing metal oxides
US5400358A (en) * 1992-10-13 1995-03-21 Consteel, S.A. Continuous scrap preheating
US5603748A (en) * 1993-06-19 1997-02-18 Lurgi Metallurgie Gmbh Process and apparatus for a direct reduction of iron oxide containing materials to form Fe3 C
US5529599A (en) * 1995-01-20 1996-06-25 Calderon; Albert Method for co-producing fuel and iron
US5588982A (en) * 1995-05-01 1996-12-31 Alabama Power Company Process for producing foudry iron

Also Published As

Publication number Publication date
AU4139100A (en) 2000-08-29
WO2000047780A2 (en) 2000-08-17

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