LU90735B1 - Production of molten iron in an electric arc furnace by melting pre-reduced metal fines which are charged hot directly to the furnace from the reduction stage - Google Patents

Production of molten iron in an electric arc furnace by melting pre-reduced metal fines which are charged hot directly to the furnace from the reduction stage

Info

Publication number
LU90735B1
LU90735B1 LU90735A LU90735A LU90735B1 LU 90735 B1 LU90735 B1 LU 90735B1 LU 90735 A LU90735 A LU 90735A LU 90735 A LU90735 A LU 90735A LU 90735 B1 LU90735 B1 LU 90735B1
Authority
LU
Luxembourg
Prior art keywords
electric arc
furnace
reduced metal
molten iron
arc furnace
Prior art date
Application number
LU90735A
Other languages
French (fr)
Inventor
Lonardi Emile
Parasch Fred
Weisgerber Fred
Berg Paul
Roth Jean-Luc
Original Assignee
Wurth Paul 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
Priority to LU90735A priority Critical patent/LU90735B1/en
Application filed by Wurth Paul Sa filed Critical Wurth Paul Sa
Priority to AU2002250975A priority patent/AU2002250975B2/en
Priority to RU2003127390/02A priority patent/RU2268308C2/en
Priority to DE0001383933T priority patent/DE02719871T1/en
Priority to JP2002568794A priority patent/JP4212895B2/en
Priority to EP02719871A priority patent/EP1383933B1/en
Priority to CA002437254A priority patent/CA2437254C/en
Priority to CN02805218.8A priority patent/CN1239715C/en
Priority to DE60204221T priority patent/DE60204221T2/en
Priority to BRPI0207370-6A priority patent/BR0207370B1/en
Priority to ES02719871T priority patent/ES2215498T3/en
Priority to US10/468,630 priority patent/US7169205B2/en
Priority to PCT/EP2002/001749 priority patent/WO2002068700A1/en
Application granted granted Critical
Publication of LU90735B1 publication Critical patent/LU90735B1/en
Priority to ZA200305378A priority patent/ZA200305378B/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
    • 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

Abstract

Production of molten iron, in an electric arc furnace incorporating several electrodes, equipped with a hearth and containing a heel surmounted by a non-foaming molten slag, consists of: (a) reduction of metallic fines to form pre-reduced metal fines with an excess of free carbon; (b) the hot transfer of the pre-reduced metal fines to the inside of a curtain of inert gas in the heel of the bath contained in the electric arc furnace; (c) stirring of the heel of the bath by gas injection in a manner to avoid the formation of crust; (d) melting of the pre-reduced metal fines in the electric arc furnace to produce molten iron.
LU90735A 2001-02-23 2001-02-23 Production of molten iron in an electric arc furnace by melting pre-reduced metal fines which are charged hot directly to the furnace from the reduction stage LU90735B1 (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
LU90735A LU90735B1 (en) 2001-02-23 2001-02-23 Production of molten iron in an electric arc furnace by melting pre-reduced metal fines which are charged hot directly to the furnace from the reduction stage
DE60204221T DE60204221T2 (en) 2001-02-23 2002-02-20 METHOD FOR PRODUCING LIQUID CHROMIS IN AN ELECTRIC OVEN
DE0001383933T DE02719871T1 (en) 2001-02-23 2002-02-20 METHOD FOR PRODUCING LIQUID PIG IRON IN AN ELECTRIC OVEN
JP2002568794A JP4212895B2 (en) 2001-02-23 2002-02-20 Method for generating molten iron in electric furnace
EP02719871A EP1383933B1 (en) 2001-02-23 2002-02-20 Method for producing a melt iron in an electric furnace
CA002437254A CA2437254C (en) 2001-02-23 2002-02-20 Method for producing a melt iron in an electric furnace
AU2002250975A AU2002250975B2 (en) 2001-02-23 2002-02-20 Method for producing a melt iron in an electric furnace
RU2003127390/02A RU2268308C2 (en) 2001-02-23 2002-02-20 Method for production of liquid molten crude iron in electric arc furnace
BRPI0207370-6A BR0207370B1 (en) 2001-02-23 2002-02-20 process of producing liquid cast iron in an electric furnace.
ES02719871T ES2215498T3 (en) 2001-02-23 2002-02-20 LIQUID FOUNDRY PRODUCTION PROCEDURE IN AN ELECTRIC OVEN.
US10/468,630 US7169205B2 (en) 2001-02-23 2002-02-20 Method for producing a melt iron in an electric furnace
PCT/EP2002/001749 WO2002068700A1 (en) 2001-02-23 2002-02-20 Method for producing a melt iron in an electric furnace
CN02805218.8A CN1239715C (en) 2001-02-23 2002-02-20 Method for producing melt iron in electric furnace
ZA200305378A ZA200305378B (en) 2001-02-23 2003-07-11 Method for producing a melt iron in an electric furnace.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU90735A LU90735B1 (en) 2001-02-23 2001-02-23 Production of molten iron in an electric arc furnace by melting pre-reduced metal fines which are charged hot directly to the furnace from the reduction stage

Publications (1)

Publication Number Publication Date
LU90735B1 true LU90735B1 (en) 2002-08-26

Family

ID=19731971

Family Applications (1)

Application Number Title Priority Date Filing Date
LU90735A LU90735B1 (en) 2001-02-23 2001-02-23 Production of molten iron in an electric arc furnace by melting pre-reduced metal fines which are charged hot directly to the furnace from the reduction stage

Country Status (3)

Country Link
CN (1) CN1239715C (en)
LU (1) LU90735B1 (en)
ZA (1) ZA200305378B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI127188B (en) * 2015-04-10 2018-01-15 Outotec Finland Oy PROCEDURES AND ARRANGEMENTS FOR USING A METALLURGICAL OVEN AND COMPUTER PROGRAM PRODUCT

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1285711A (en) * 1961-04-05 1962-02-23 Elektrokemisk As Process of manufacturing cast iron in an electric furnace
US4701216A (en) * 1985-06-26 1987-10-20 British Steel Corporation Melting of metals
WO1998058091A1 (en) * 1997-06-18 1998-12-23 Voest-Alpine Industrieanlagenbau Gmbh Process and plant for producing iron smelt in an electric arc furnace by using agglomerated, iron-containing steel work residues
DE19744151A1 (en) * 1997-10-07 1999-04-08 Metallgesellschaft Ag Method for melting fine-grained, directly reduced iron in an electric arc furnace
WO2000079012A1 (en) * 1999-06-21 2000-12-28 Paul Wurth S.A. Method for producing melt iron
WO2001011091A1 (en) * 1999-08-05 2001-02-15 Technological Resources Pty Ltd A direct smelting process

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1285711A (en) * 1961-04-05 1962-02-23 Elektrokemisk As Process of manufacturing cast iron in an electric furnace
US4701216A (en) * 1985-06-26 1987-10-20 British Steel Corporation Melting of metals
WO1998058091A1 (en) * 1997-06-18 1998-12-23 Voest-Alpine Industrieanlagenbau Gmbh Process and plant for producing iron smelt in an electric arc furnace by using agglomerated, iron-containing steel work residues
DE19744151A1 (en) * 1997-10-07 1999-04-08 Metallgesellschaft Ag Method for melting fine-grained, directly reduced iron in an electric arc furnace
WO2000079012A1 (en) * 1999-06-21 2000-12-28 Paul Wurth S.A. Method for producing melt iron
WO2001011091A1 (en) * 1999-08-05 2001-02-15 Technological Resources Pty Ltd A direct smelting process

Also Published As

Publication number Publication date
ZA200305378B (en) 2004-07-06
CN1239715C (en) 2006-02-01
CN1492937A (en) 2004-04-28

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