CA2437254A1 - Procede de production de fonte liquide dans un four electrique - Google Patents

Procede de production de fonte liquide dans un four electrique Download PDF

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Publication number
CA2437254A1
CA2437254A1 CA002437254A CA2437254A CA2437254A1 CA 2437254 A1 CA2437254 A1 CA 2437254A1 CA 002437254 A CA002437254 A CA 002437254A CA 2437254 A CA2437254 A CA 2437254A CA 2437254 A1 CA2437254 A1 CA 2437254A1
Authority
CA
Canada
Prior art keywords
electric arc
fines
bath
producing
foot
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.)
Granted
Application number
CA002437254A
Other languages
English (en)
Other versions
CA2437254C (fr
Inventor
Jean-Luc Roth
Paul Berg
Fred Weisgerber
Fred Parasch
Emile Lonardi
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.)
Paul Wurth SA
Original Assignee
Individual
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 LU90735A external-priority patent/LU90735B1/fr
Priority claimed from LU90788A external-priority patent/LU90788B1/fr
Application filed by Individual filed Critical Individual
Publication of CA2437254A1 publication Critical patent/CA2437254A1/fr
Application granted granted Critical
Publication of CA2437254C publication Critical patent/CA2437254C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C21B11/10—Making pig-iron other than in blast furnaces in electric 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
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0026—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide in the flame of a burner or a hot gas stream

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Manufacture Of Iron (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Procédé de production de fonte liquide dans un four électrique à arc comprenant plusieurs électrodes, équipé d'une sole et contenant un pied de bain surmonté d'un laitier liquide non moussant, le procédé comprenant les étapes suivantes : - réduction de fines métalliques pour former des fines métalliques préréduites comprenant un excès de carbone libre, - transfert à chaud des fines métalliques préréduites à l'intérieur d'un rideau d'un gaz inerte dans un pied de bain contenu dans le four électrique à arc, - brassage du pied de bain par injection de gaz de manière à éviter la formation de croûtes, - fusion des fines métalliques préréduites dans le four électrique à arc pour obtenir de la fonte liquide.
CA002437254A 2001-02-23 2002-02-20 Procede de production de fonte liquide dans un four electrique Expired - Fee Related CA2437254C (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
LU90735A LU90735B1 (fr) 2001-02-23 2001-02-23 Proc-d- de production de fonte liquide
LU90735 2001-02-23
LU90788 2001-06-13
LU90788A LU90788B1 (fr) 2001-06-13 2001-06-13 Procédé de production de fonte liquide dans un four électrique
PCT/EP2002/001749 WO2002068700A1 (fr) 2001-02-23 2002-02-20 Procede de production de fonte liquide dans un four electrique

Publications (2)

Publication Number Publication Date
CA2437254A1 true CA2437254A1 (fr) 2002-09-06
CA2437254C CA2437254C (fr) 2009-06-30

Family

ID=26640378

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002437254A Expired - Fee Related CA2437254C (fr) 2001-02-23 2002-02-20 Procede de production de fonte liquide dans un four electrique

Country Status (10)

Country Link
US (1) US7169205B2 (fr)
EP (1) EP1383933B1 (fr)
JP (1) JP4212895B2 (fr)
AU (1) AU2002250975B2 (fr)
BR (1) BR0207370B1 (fr)
CA (1) CA2437254C (fr)
DE (2) DE02719871T1 (fr)
ES (1) ES2215498T3 (fr)
RU (1) RU2268308C2 (fr)
WO (1) WO2002068700A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6875251B2 (en) * 2002-05-15 2005-04-05 Hatch Ltd. Continuous steelmaking process
EP1983066A1 (fr) * 2007-03-30 2008-10-22 Paul Wurth S.A. Procédé de récupération du molybdène, du nickel, du cobalt ou de leurs mélanges à partir de catalyseurs usés ou régénérés
EP1997919A1 (fr) * 2007-05-24 2008-12-03 Paul Wurth S.A. Procédé de valorisation de résidus riches en zinc et en sulfates
JP5166805B2 (ja) * 2007-09-19 2013-03-21 株式会社神戸製鋼所 アーク加熱による溶鉄製造方法
JP5166804B2 (ja) * 2007-09-19 2013-03-21 株式会社神戸製鋼所 溶鉄製造方法
US8532158B2 (en) * 2007-11-17 2013-09-10 Inductotherm Corp. Melting and mixing of materials in a crucible by electric induction heel process
US20160326606A1 (en) * 2014-01-31 2016-11-10 Saudi Basic Industries Corporation Methods for producing improved steels by injecting iron containing by-products of an iron ore production process into liquid steel
ITUA20163986A1 (it) 2016-05-31 2017-12-01 Tenova Spa Metodo ed apparato per la produzione di ghisa, ghisa prodotta secondo detto metodo
WO2019082762A1 (fr) 2017-10-23 2019-05-02 新日鐵住金株式会社 Four électrique et procédé de fusion et de réduction de matière première de fer contenant de l'oxyde de fer
RU2734215C1 (ru) * 2020-04-16 2020-10-13 Автономная некоммерческая организация «Научно-исследовательский институт проблем экологии» Способ выплавки чугуна в доменной печи
DE102020205493A1 (de) 2020-04-30 2021-11-04 Sms Group Gmbh Verfahren zum Herstellen von flüssigem Roheisen aus einem DRI-Produkt
US12158306B2 (en) 2021-05-21 2024-12-03 Fives North American Combustion, Inc. Melting furnace purge system and method
US12497668B2 (en) * 2022-03-11 2025-12-16 Midrex Technologies, Inc. Hot metal production from DRI with electric arc heating
TWI844330B (zh) * 2022-04-22 2024-06-01 日商Ｊｆｅ鋼鐵股份有限公司 直接還原鐵的熔解方法、固體鐵及固體鐵的製造方法、以及土木建築用資材及土木建築用資材的製造方法
WO2023204063A1 (fr) * 2022-04-22 2023-10-26 Ｊｆｅスチール株式会社 Procédé de fusion de fer à réduction directe, fer solide et procédé de fabrication de fer solide, matériau pour génie civil et construction, procédé de production de matériau pour génie civil et construction, et système de fusion de fer à réduction directe
JPWO2025062841A1 (fr) * 2023-09-19 2025-03-27

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1285711A (fr) * 1961-04-05 1962-02-23 Elektrokemisk As Procédé de fabrication de fonte dans un four électrique
SE371651C (sv) * 1973-03-30 1976-12-06 Asea Ab Sett och anordning for smeltreduktion
US4160663A (en) * 1978-02-21 1979-07-10 Jack Hsieh Method for the direct reduction of iron ore
GB8516143D0 (en) * 1985-06-26 1985-07-31 British Steel Corp Melting of metals
DE3607222A1 (de) * 1986-03-05 1987-09-10 Conradty Nuernberg Verfahren zur reduktion von eisenerz zu stahl
ATE139267T1 (de) * 1990-03-13 1996-06-15 Cra Services Verfahren zum herstellen von metallen und legierungen in einem schmelzreduktionsgefäss
AT400245B (de) * 1993-12-10 1995-11-27 Voest Alpine Ind Anlagen Verfahren und anlage zum herstellen einer eisenschmelze
NL9401103A (nl) * 1994-07-01 1996-02-01 Hoogovens Groep Bv Werkwijze en inrichting voor het voorreduceren van ijzerverbindingen.
US5912916A (en) * 1995-05-01 1999-06-15 Alabama Power Company Electric furnace with insulated electrodes and process for producing molten metals
AT405054B (de) * 1997-06-18 1999-05-25 Voest Alpine Ind Anlagen Verfahren und anlage zum herstellen einer eisenschmelze unter einsatz von eisenhältigen hüttenwerksreststoffen
DE19744151C5 (de) * 1997-10-07 2004-08-26 Outokumpu Oyj Verfahren zum Schmelzen von feinkörnigem, direkt reduziertem Eisen in einem Elektrolichtbogenofen
LU90406B1 (fr) 1999-06-21 2000-12-22 Wurth Paul Sa Proc-d- de production de fonte liquide
AUPQ205799A0 (en) * 1999-08-05 1999-08-26 Technological Resources Pty Limited A direct smelting process

Also Published As

Publication number Publication date
JP4212895B2 (ja) 2009-01-21
EP1383933B1 (fr) 2005-05-18
US20040060389A1 (en) 2004-04-01
AU2002250975B2 (en) 2006-11-23
RU2003127390A (ru) 2005-03-27
DE60204221T2 (de) 2006-02-02
BR0207370A (pt) 2004-06-22
ES2215498T3 (es) 2005-10-16
BR0207370B1 (pt) 2010-08-10
JP2004521188A (ja) 2004-07-15
ES2215498T1 (es) 2004-10-16
EP1383933A1 (fr) 2004-01-28
DE60204221D1 (de) 2005-06-23
US7169205B2 (en) 2007-01-30
RU2268308C2 (ru) 2006-01-20
WO2002068700A1 (fr) 2002-09-06
DE02719871T1 (de) 2004-07-15
CA2437254C (fr) 2009-06-30

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