EP0032350B1 - Procédé d'affinage d'un bain de métal dans un creuset à soufflage d'oxygène par le haut et creuset de mise en oeuvre - Google Patents

Procédé d'affinage d'un bain de métal dans un creuset à soufflage d'oxygène par le haut et creuset de mise en oeuvre Download PDF

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Publication number
EP0032350B1
EP0032350B1 EP80401900A EP80401900A EP0032350B1 EP 0032350 B1 EP0032350 B1 EP 0032350B1 EP 80401900 A EP80401900 A EP 80401900A EP 80401900 A EP80401900 A EP 80401900A EP 0032350 B1 EP0032350 B1 EP 0032350B1
Authority
EP
European Patent Office
Prior art keywords
crucible
injectors
bath
gas
refining
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.)
Expired
Application number
EP80401900A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0032350A2 (fr
EP0032350A3 (en
Inventor
Jean-Claude Grosjean
Guy Denier
Claude Bauler
Paul Metz
Francois Schleimer
Lucien Lorang
Ferdinand Goedert
Romain Henrion
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.)
Institut de Recherches de la Siderurgie Francaise IRSID
Arcelor Luxembourg SA
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
Arbed 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19729324&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0032350(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Institut de Recherches de la Siderurgie Francaise IRSID, Arbed SA filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Priority to AT80401900T priority Critical patent/ATE14144T1/de
Publication of EP0032350A2 publication Critical patent/EP0032350A2/fr
Publication of EP0032350A3 publication Critical patent/EP0032350A3/fr
Application granted granted Critical
Publication of EP0032350B1 publication Critical patent/EP0032350B1/fr
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
    • 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
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/35—Blowing from above and through the bath

Definitions

  • One of the main technological characteristics of the process is the incorporation into the bottom of the crucible of injectors enabling the mixing gas to be blown into the bath at any time during and / or after the top blowing of oxygen. refining.
  • the injectors used which must ensure a selective passage of the stirring gas to avoid infiltration of molten metal in the opposite direction, are air-tight refractory elements. Elements of this type now exist, whose lifespan is equal to that of the bottom of the crucible and which have been the subject of several patent applications formulated by the inventors.
  • the inventors have now discovered that the LBE process makes it possible to greatly expand the possibilities of refining with oxygen from above, not only thanks to the flexibility already mentioned in the choice of the time, the duration and the intensity of gas mixing, but also - and quite surprisingly - by a judicious choice of the geometric conditions which such mixing must meet.
  • this choice can be implemented in a very simple manner from considerations relating only to the location of the injectors in the bottom of the crucible.
  • these elements replace ordinary bricks constituting the bottom and that in this respect, they advantageously have an identical shape and an identical format, or very slightly smaller, respectively than the shape and format of the bricks they replace.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
EP80401900A 1980-01-09 1980-12-31 Procédé d'affinage d'un bain de métal dans un creuset à soufflage d'oxygène par le haut et creuset de mise en oeuvre Expired EP0032350B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80401900T ATE14144T1 (de) 1980-01-09 1980-12-31 Verfahren zum frischen einer metallschmelze in einem tiegel unter aufblasen von sauerstoff und dabei verwendeter tiegel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU82069A LU82069A1 (fr) 1980-01-09 1980-01-09 Procede d'affinage d'un bain de metal
LU82069 1980-01-09

Publications (3)

Publication Number Publication Date
EP0032350A2 EP0032350A2 (fr) 1981-07-22
EP0032350A3 EP0032350A3 (en) 1981-08-26
EP0032350B1 true EP0032350B1 (fr) 1985-07-03

Family

ID=19729324

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80401900A Expired EP0032350B1 (fr) 1980-01-09 1980-12-31 Procédé d'affinage d'un bain de métal dans un creuset à soufflage d'oxygène par le haut et creuset de mise en oeuvre

Country Status (17)

Country Link
US (1) US4369060A (enrdf_load_stackoverflow)
EP (1) EP0032350B1 (enrdf_load_stackoverflow)
JP (1) JPS56102508A (enrdf_load_stackoverflow)
AT (1) ATE14144T1 (enrdf_load_stackoverflow)
AU (1) AU540800B2 (enrdf_load_stackoverflow)
BR (1) BR8100113A (enrdf_load_stackoverflow)
CA (1) CA1172048A (enrdf_load_stackoverflow)
CS (1) CS242866B2 (enrdf_load_stackoverflow)
DE (1) DE3070844D1 (enrdf_load_stackoverflow)
ES (1) ES498382A0 (enrdf_load_stackoverflow)
IN (1) IN154540B (enrdf_load_stackoverflow)
LU (1) LU82069A1 (enrdf_load_stackoverflow)
PL (1) PL229121A1 (enrdf_load_stackoverflow)
PT (1) PT72324B (enrdf_load_stackoverflow)
RO (1) RO81955A (enrdf_load_stackoverflow)
SU (1) SU1190993A3 (enrdf_load_stackoverflow)
ZA (1) ZA8177B (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501722B1 (fr) * 1981-03-11 1986-08-14 Siderurgie Fse Inst Rech Procede de brassage pneumatique d'un bain metallique
US4428564A (en) 1982-01-26 1984-01-31 Pennsylvania Engineering Corporation Metallurgical vessel
US4488903A (en) * 1984-03-14 1984-12-18 Union Carbide Corporation Rapid decarburization steelmaking process
AT382889B (de) * 1984-03-15 1987-04-27 Voest Alpine Ag Spueleinrichtung fuer ein metallurgisches gefaess
US4529442A (en) * 1984-04-26 1985-07-16 Allegheny Ludlum Steel Corporation Method for producing steel in a top oxygen blown vessel
US4599107A (en) * 1985-05-20 1986-07-08 Union Carbide Corporation Method for controlling secondary top-blown oxygen in subsurface pneumatic steel refining
AT384034B (de) * 1986-02-03 1987-09-25 Voest Alpine Ag Spueleinrichtung fuer ein metallurgisches gefaess
FR2632971B1 (fr) * 1988-06-17 1993-09-03 Vallourec Procede de traitement des aciers liquides par injection de gaz a travers le fond de poche
LU92813B1 (en) * 2015-09-02 2017-03-20 Wurth Paul Sa Enhanced pressurising of bulk material in lock hoppers
CN116007370A (zh) * 2022-12-29 2023-04-25 湖南宏拓铝业有限公司 一种废旧铝熔炼装置及其熔炼方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1210459A (fr) * 1957-12-02 1960-03-09 A R B E D Procédé de fabrication d'acier et convertisseur pour ce procédé ou procédés similaires
FR2233401A1 (enrdf_load_stackoverflow) * 1973-06-18 1975-01-10 Allegheny Ludlum Ind Inc
FR2322202A1 (fr) * 1975-08-29 1977-03-25 Siderurgie Fse Inst Rech Procede d'elaboration d'acier par soufflage d'oxygene

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE609232A (fr) * 1961-10-16 1962-04-16 Centre Nat Rech Metall Perfectionnements aux procédés d'affinage de la fonte
US4198230A (en) * 1977-05-04 1980-04-15 Eisenwerk-Gesellschaft Maximilianshutte Mbh Steelmaking process
US4195985A (en) * 1977-12-10 1980-04-01 Eisenwerk-Gesellschaft Maximilianshutte Mbh. Method of improvement of the heat-balance in the refining of steel
US4280838A (en) * 1979-05-24 1981-07-28 Sumitomo Metal Industries, Ltd. Production of carbon steel and low-alloy steel with bottom blowing basic oxygen furnace

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1210459A (fr) * 1957-12-02 1960-03-09 A R B E D Procédé de fabrication d'acier et convertisseur pour ce procédé ou procédés similaires
FR2233401A1 (enrdf_load_stackoverflow) * 1973-06-18 1975-01-10 Allegheny Ludlum Ind Inc
FR2322202A1 (fr) * 1975-08-29 1977-03-25 Siderurgie Fse Inst Rech Procede d'elaboration d'acier par soufflage d'oxygene

Also Published As

Publication number Publication date
EP0032350A2 (fr) 1981-07-22
PL229121A1 (enrdf_load_stackoverflow) 1981-09-18
EP0032350A3 (en) 1981-08-26
ES8203973A1 (es) 1982-04-01
PT72324A (en) 1981-02-01
ZA8177B (en) 1982-01-27
AU540800B2 (en) 1984-12-06
DE3070844D1 (en) 1985-08-08
RO81955B (ro) 1983-06-30
ES498382A0 (es) 1982-04-01
LU82069A1 (fr) 1981-09-10
BR8100113A (pt) 1981-07-21
IN154540B (enrdf_load_stackoverflow) 1984-11-10
ATE14144T1 (de) 1985-07-15
JPS56102508A (en) 1981-08-17
PT72324B (en) 1981-12-18
CS242866B2 (en) 1986-05-15
RO81955A (ro) 1983-07-07
AU6604681A (en) 1981-07-16
US4369060A (en) 1983-01-18
SU1190993A3 (ru) 1985-11-07
CA1172048A (fr) 1984-08-07

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BE556194A (enrdf_load_stackoverflow)

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