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WO2000036161A3 - Procede pour l'enfournement de fines dans un four a arc - Google Patents

Procede pour l'enfournement de fines dans un four a arc

Info

Publication number
WO2000036161A3
WO2000036161A3 PCT/EP1999/009923 EP9909923W WO0036161A3 WO 2000036161 A3 WO2000036161 A3 WO 2000036161A3 EP 9909923 W EP9909923 W EP 9909923W WO 0036161 A3 WO0036161 A3 WO 0036161A3
Authority
WO
WIPO (PCT)
Prior art keywords
fines
light
arc furnace
feeding
jet
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/EP1999/009923
Other languages
English (en)
Other versions
WO2000036161A2 (fr
Inventor
Jean-Luc Roth
Leon Ulveling
Carlo Heintz
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
Paul Wurth SA
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 Paul Wurth SA filed Critical Paul Wurth SA
Priority to AU32756/00A priority Critical patent/AU3275600A/en
Publication of WO2000036161A2 publication Critical patent/WO2000036161A2/fr
Publication of WO2000036161A3 publication Critical patent/WO2000036161A3/fr
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
    • C21B13/0006—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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/12—Making spongy iron or liquid steel, by direct processes 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
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • C21B13/143—Injection of partially reduced ore into a molten bath
    • 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
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • 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
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
    • C21C5/5217—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace equipped with burners or devices for injecting gas, i.e. oxygen, or pulverulent materials into the furnace
    • 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
    • Y02P10/20—Recycling

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)
  • Furnace Charging Or Discharging (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

On présente un procédé pour l'enfournement de fines dans un four à arc (10) sous forme d'un jet de fines en suspension dans un gaz porteur. Le jet de fines est entouré d'une couche de gaz secondaire qui a une vitesse sensiblement plus élevée que le gaz porteur. Le procédé est spécialement adapté pour enfourner, dans des conditions plus favorables, des débits plus importants d'un minerai de fer préréduit sous forme de fines.
PCT/EP1999/009923 1998-12-16 1999-12-14 Procede pour l'enfournement de fines dans un four a arc Ceased WO2000036161A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU32756/00A AU3275600A (en) 1998-12-16 1999-12-14 Method for feeding fines in a light-arc furnace

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU90327 1998-12-16
LU90327A LU90327B1 (fr) 1998-12-16 1998-12-16 Proc-d- pour l'enfournement de fines dans un four - arc

Publications (2)

Publication Number Publication Date
WO2000036161A2 WO2000036161A2 (fr) 2000-06-22
WO2000036161A3 true WO2000036161A3 (fr) 2000-08-31

Family

ID=19731788

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/009923 Ceased WO2000036161A2 (fr) 1998-12-16 1999-12-14 Procede pour l'enfournement de fines dans un four a arc

Country Status (4)

Country Link
AU (1) AU3275600A (fr)
LU (1) LU90327B1 (fr)
TW (1) TW414853B (fr)
WO (1) WO2000036161A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10333764B3 (de) * 2003-07-23 2004-12-30 Outokumpu Oy Verfahren zum Chargieren von feinkörnigen Metallen in einen Elektrolichtbogenofen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827486A (en) * 1986-08-27 1989-05-02 Klockner Cra Technologie Gmbh Process for increasing the energy input in electric arc furnaces
US4986847A (en) * 1989-09-20 1991-01-22 Fuchs Systemtechnik Gmbh Process and apparatus for at least temporarily simultaneously subjecting a molten metal to the action of a gas and fine-grain solid materials
US5611838A (en) * 1993-12-10 1997-03-18 Voest-Alpine Industrieanlagenbau Gmbh Process for producing an iron melt
DE19648306A1 (de) * 1995-12-21 1997-06-26 Voest Alpine Ind Anlagen Verfahren zum Verarbeiten einer Schredder-Leicht-Fraktion in einer Schmelze
US5843368A (en) * 1994-08-29 1998-12-01 American Combustion, Inc. Apparatus for electric steelmaking
DE19744151A1 (de) * 1997-10-07 1999-04-08 Metallgesellschaft Ag Verfahren zum Schmelzen von feinkörnigem, direkt reduziertem Eisen in einem Elektrolichtbogenofen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827486A (en) * 1986-08-27 1989-05-02 Klockner Cra Technologie Gmbh Process for increasing the energy input in electric arc furnaces
US4986847A (en) * 1989-09-20 1991-01-22 Fuchs Systemtechnik Gmbh Process and apparatus for at least temporarily simultaneously subjecting a molten metal to the action of a gas and fine-grain solid materials
US5611838A (en) * 1993-12-10 1997-03-18 Voest-Alpine Industrieanlagenbau Gmbh Process for producing an iron melt
US5843368A (en) * 1994-08-29 1998-12-01 American Combustion, Inc. Apparatus for electric steelmaking
DE19648306A1 (de) * 1995-12-21 1997-06-26 Voest Alpine Ind Anlagen Verfahren zum Verarbeiten einer Schredder-Leicht-Fraktion in einer Schmelze
DE19744151A1 (de) * 1997-10-07 1999-04-08 Metallgesellschaft Ag Verfahren zum Schmelzen von feinkörnigem, direkt reduziertem Eisen in einem Elektrolichtbogenofen

Also Published As

Publication number Publication date
LU90327B1 (fr) 2000-07-18
WO2000036161A2 (fr) 2000-06-22
AU3275600A (en) 2000-07-03
TW414853B (en) 2000-12-11

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