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WO1998021373A3 - Process for reducing fume emissions during molten metal transfer - Google Patents

Process for reducing fume emissions during molten metal transfer Download PDF

Info

Publication number
WO1998021373A3
WO1998021373A3 PCT/EP1997/006938 EP9706938W WO9821373A3 WO 1998021373 A3 WO1998021373 A3 WO 1998021373A3 EP 9706938 W EP9706938 W EP 9706938W WO 9821373 A3 WO9821373 A3 WO 9821373A3
Authority
WO
WIPO (PCT)
Prior art keywords
molten metal
metal transfer
emissions during
reducing fume
during molten
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/EP1997/006938
Other languages
French (fr)
Other versions
WO1998021373A2 (en
Inventor
Dieter Fuenders
Harald Winter
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.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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 Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Priority to JP52220098A priority Critical patent/JP2001503817A/en
Priority to AU53234/98A priority patent/AU5323498A/en
Priority to CA002270949A priority patent/CA2270949A1/en
Priority to EP97950207A priority patent/EP0946762A2/en
Publication of WO1998021373A2 publication Critical patent/WO1998021373A2/en
Publication of WO1998021373A3 publication Critical patent/WO1998021373A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D45/00—Equipment for casting, not otherwise provided for
    • B22D45/005—Evacuation of fumes, dust or waste gases during manipulations in the foundry
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/14—Discharging devices, e.g. for slag
    • 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/06—Constructional features of mixers for pig-iron
    • 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
    • C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Blast Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

A process for reducing fume, dust and/or smoke emission in transferring molten metal, entailing: a) blanketing molten metal, preferably steel or iron with, at least, solid carbon dioxide; and b) allowing the carbon dioxide to sublime, thereby restricting free air access to the molten metal, and reducing fume, dust and/or smoke emission therefrom.
PCT/EP1997/006938 1996-11-08 1997-11-03 Process for reducing fume emissions during molten metal transfer Ceased WO1998021373A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP52220098A JP2001503817A (en) 1996-11-08 1997-11-03 A method for reducing fume emissions during the movement of molten metal.
AU53234/98A AU5323498A (en) 1996-11-08 1997-11-03 Process for reducing fume emissions during molten metal transfer
CA002270949A CA2270949A1 (en) 1996-11-08 1997-11-03 Process for reducing fume emissions during molten metal transfer
EP97950207A EP0946762A2 (en) 1996-11-08 1997-11-03 Process for reducing fume emissions during molten metal transfer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US74631096A 1996-11-08 1996-11-08
US08/746,310 1996-11-08

Publications (2)

Publication Number Publication Date
WO1998021373A2 WO1998021373A2 (en) 1998-05-22
WO1998021373A3 true WO1998021373A3 (en) 1998-08-20

Family

ID=25000290

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/006938 Ceased WO1998021373A2 (en) 1996-11-08 1997-11-03 Process for reducing fume emissions during molten metal transfer

Country Status (5)

Country Link
EP (1) EP0946762A2 (en)
JP (1) JP2001503817A (en)
AU (1) AU5323498A (en)
CA (1) CA2270949A1 (en)
WO (1) WO1998021373A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5407186B2 (en) * 2008-06-09 2014-02-05 Ｊｆｅスチール株式会社 Dust generation prevention method in remaining hot water return work
DE102011008894A1 (en) * 2011-01-19 2012-07-19 Air Liquide Deutschland Gmbh Method and nozzle for suppressing development of iron containing steam

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0071359A1 (en) * 1981-07-23 1983-02-09 Uss Engineers And Consultants, Inc. Methods and apparatus for molten metal fume supression
US4666511A (en) * 1985-04-01 1987-05-19 L'air Liquide Process for producing killed steel having a low nitrogen content
FR2607829A1 (en) * 1986-12-09 1988-06-10 Cootec Deutschland Gmbh Process for the treatment of steel in a ladle
EP0383184A1 (en) * 1989-02-14 1990-08-22 INTRACON Handelsgesellschaft für Industriebedarf mbH Method of decreasing the fume emission and the free entry of air in the tap hole region of a blast furnace
EP0544967A1 (en) * 1991-11-28 1993-06-09 Carbagas Process for suppression of dust and fumes during electric steel production
EP0639650A1 (en) * 1993-08-18 1995-02-22 The Commonwealth Industrial Gases Limited CO2 snow discharge apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0071359A1 (en) * 1981-07-23 1983-02-09 Uss Engineers And Consultants, Inc. Methods and apparatus for molten metal fume supression
US4666511A (en) * 1985-04-01 1987-05-19 L'air Liquide Process for producing killed steel having a low nitrogen content
FR2607829A1 (en) * 1986-12-09 1988-06-10 Cootec Deutschland Gmbh Process for the treatment of steel in a ladle
EP0383184A1 (en) * 1989-02-14 1990-08-22 INTRACON Handelsgesellschaft für Industriebedarf mbH Method of decreasing the fume emission and the free entry of air in the tap hole region of a blast furnace
EP0544967A1 (en) * 1991-11-28 1993-06-09 Carbagas Process for suppression of dust and fumes during electric steel production
EP0639650A1 (en) * 1993-08-18 1995-02-22 The Commonwealth Industrial Gases Limited CO2 snow discharge apparatus

Also Published As

Publication number Publication date
WO1998021373A2 (en) 1998-05-22
EP0946762A2 (en) 1999-10-06
CA2270949A1 (en) 1998-05-22
JP2001503817A (en) 2001-03-21
AU5323498A (en) 1998-06-03

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