GB2014615A - Injection of Powdered Material into Metallurgical Melts - Google Patents

Injection of Powdered Material into Metallurgical Melts

Info

Publication number
GB2014615A
GB2014615A GB7902235A GB7902235A GB2014615A GB 2014615 A GB2014615 A GB 2014615A GB 7902235 A GB7902235 A GB 7902235A GB 7902235 A GB7902235 A GB 7902235A GB 2014615 A GB2014615 A GB 2014615A
Authority
GB
United Kingdom
Prior art keywords
melt
powdered material
injection
carrier gas
metallurgical
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
GB7902235A
Other versions
GB2014615B (en
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
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 ASEA AB filed Critical ASEA AB
Publication of GB2014615A publication Critical patent/GB2014615A/en
Application granted granted Critical
Publication of GB2014615B publication Critical patent/GB2014615B/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04Removing impurities by adding a treating agent
    • C21C7/068Decarburising
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04Removing impurities by adding a treating agent
    • C21C7/072Treatment with gases
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/10General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
    • C22B9/103Methods of introduction of solid or liquid refining or fluxing agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

Powdered material is injected into a metallurgical melt 6, for example a steel melt, for refining and/or decarburisation of the melt, the material being supplied to the melt via a through-channel 5 in at least one arc electrode 4 which terminates above the surface of the melt. An arc 7 is maintained between the electrode(s) 4 and the melt 6 while the powdered material is continuously supplied with the help of a carrier gas 3, for example argon, other inert gas, nitrogen, oxygen or air, under such a pressure that the powdered material penetrates down into the melt below the surface thereof and the desired reaction in the melt is obtained. Suitably, the powdered material is given such a speed by the carrier gas that it penetrates into the melt at least 5 mm, preferably at least 1 cm, for example from 10 to 30 cm. <IMAGE>
GB7902235A 1978-01-24 1979-01-22 Injection of powdered material into metallurgical melts Expired GB2014615B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7800823A SE431994B (en) 1978-01-24 1978-01-24 PROCEDURAL KIT FOR INJECTING POWDER-MATERIAL IN A METAL SURGICAL MELT AS STALL

Publications (2)

Publication Number Publication Date
GB2014615A true GB2014615A (en) 1979-08-30
GB2014615B GB2014615B (en) 1982-10-13

Family

ID=20333743

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7902235A Expired GB2014615B (en) 1978-01-24 1979-01-22 Injection of powdered material into metallurgical melts

Country Status (6)

Country Link
JP (1) JPS54110117A (en)
DE (1) DE2900864A1 (en)
FR (1) FR2415148B1 (en)
GB (1) GB2014615B (en)
IT (1) IT1110692B (en)
SE (1) SE431994B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008000586A1 (en) * 2006-06-28 2008-01-03 Siemens Aktiengesellschaft Method and device for introducing dust into a molten both of a pyrometallurgical installation

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3629055A1 (en) * 1986-08-27 1988-03-03 Kloeckner Cra Tech METHOD FOR INCREASING ENERGY IN ELECTRIC ARC FURNACES
AT396942B (en) * 1991-12-16 1993-12-27 Voest Alpine Ind Anlagen METHOD FOR PRODUCING METAL MELT, IN PARTICULAR STEEL MELT
DE4310779C2 (en) * 1993-03-26 1996-08-14 Mannesmann Ag Process and device for the disposal of filter materials
WO1995025822A1 (en) * 1994-03-18 1995-09-28 Sahm P R Casting materials
AT403293B (en) * 1995-01-16 1997-12-29 Kct Tech Gmbh METHOD AND INSTALLATION FOR THE PRODUCTION OF ALLOY STEELS
AT404841B (en) * 1995-04-10 1999-03-25 Voest Alpine Ind Anlagen SYSTEM AND METHOD FOR PRODUCING MELTING IRON
DE102007048962A1 (en) * 2007-10-12 2009-04-16 Sms Demag Ag electric oven

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1186694A (en) * 1956-12-05 1959-08-31 British Oxygen Co Ltd Treatment of molten metals and alloys
FR1186745A (en) * 1957-11-26 1959-08-31 British Oxygen Co Ltd Treatment of molten metals and alloys
DE1508256A1 (en) * 1966-04-30 1970-04-30 Schenck Dr Ing Dr Ing E H Herm Process for introducing hydrocarbons into ovens with direct electrical heating
JPS5051919A (en) * 1973-09-10 1975-05-09

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008000586A1 (en) * 2006-06-28 2008-01-03 Siemens Aktiengesellschaft Method and device for introducing dust into a molten both of a pyrometallurgical installation
US8029594B2 (en) 2006-06-28 2011-10-04 Siemens Aktiengesellschaft Method and device for introducing dust into a metal melt of a pyrometallurgical installation
CN101479393B (en) * 2006-06-28 2011-10-05 西门子公司 Method and device for introducing dust into a molten both of a pyrometallurgical installation
RU2447384C2 (en) * 2006-06-28 2012-04-10 Сименс Акциенгезелльшафт Method and device for feeding dusts to metal melt at pyrometallurgical plant
US8524145B2 (en) 2006-06-28 2013-09-03 Siemens Aktiengesellschaft Method and device for introducing dust into a metal melt of a pyrometallurgical installation

Also Published As

Publication number Publication date
SE7800823L (en) 1979-07-25
JPS54110117A (en) 1979-08-29
IT7919387A0 (en) 1979-01-17
JPS6213410B2 (en) 1987-03-26
FR2415148A1 (en) 1979-08-17
FR2415148B1 (en) 1985-09-13
GB2014615B (en) 1982-10-13
DE2900864C2 (en) 1987-08-06
SE431994B (en) 1984-03-12
DE2900864A1 (en) 1979-07-26
IT1110692B (en) 1985-12-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee