FR2364971A1 - Lance et procede pour l'affinage de l'acier - Google Patents

Lance et procede pour l'affinage de l'acier

Info

Publication number
FR2364971A1
FR2364971A1 FR7728119A FR7728119A FR2364971A1 FR 2364971 A1 FR2364971 A1 FR 2364971A1 FR 7728119 A FR7728119 A FR 7728119A FR 7728119 A FR7728119 A FR 7728119A FR 2364971 A1 FR2364971 A1 FR 2364971A1
Authority
FR
France
Prior art keywords
lance
sending
refining
tubes
gas
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
FR7728119A
Other languages
English (en)
Other versions
FR2364971B1 (fr
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.)
Armco Inc
Original Assignee
Armco Inc
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 Armco Inc filed Critical Armco Inc
Publication of FR2364971A1 publication Critical patent/FR2364971A1/fr
Application granted granted Critical
Publication of FR2364971B1 publication Critical patent/FR2364971B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C21C5/48—Bottoms or tuyéres of converters
    • 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)
  • Treatment Of Steel In Its Molten State (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

L'invention concerne une lance pour l'envoi de gaz de traitement en dessous de la surface du métal fondu contenu dans un récipient d'affinage et un procédé pour l'affinage des métaux. Une lance selon l'invention comporte trois tubes concentriques 12, 14 et 16, le tube 12 servant à l'envoi d'un gaz contenant de l'oxygène et formant avec le tube 14 un passage annulaire pour l'envoi d'un gaz de protection, de la matière réfractaire 18 occupant l'espace compris entre les tubes 14 et 16 et étant traversé par des tubes auxiliaires 20 pour l'envoi d'un gaz auxiliaire de refroidissement dans un plan horizontal de façon que ce gaz de refroidissement remonte en barbotant le long de la surface intérieure du garnissage 26 pour minimiser l'usure de la lance et l'érosion dudit garnissage. Une lance selon l'invention convient en particulier pour l'affinage de l'acier.
FR7728119A 1976-09-20 1977-09-16 Lance et procede pour l'affinage de l'acier Granted FR2364971A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/725,028 US4023676A (en) 1976-09-20 1976-09-20 Lance structure and method for oxygen refining of molten metal

Publications (2)

Publication Number Publication Date
FR2364971A1 true FR2364971A1 (fr) 1978-04-14
FR2364971B1 FR2364971B1 (fr) 1980-10-17

Family

ID=24912850

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7728119A Granted FR2364971A1 (fr) 1976-09-20 1977-09-16 Lance et procede pour l'affinage de l'acier

Country Status (6)

Country Link
US (1) US4023676A (fr)
JP (1) JPS5352210A (fr)
DE (1) DE2741850A1 (fr)
FR (1) FR2364971A1 (fr)
GB (1) GB1566628A (fr)
IT (1) IT1090204B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2547395A1 (fr) * 1983-06-13 1984-12-14 Nikko Kk Dispositif bruleur pour four de fusion metallurgique
EP0200405A1 (fr) * 1985-04-15 1986-11-05 British Steel Corporation Fusion de fers solides

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3045966A1 (de) * 1980-12-05 1982-07-08 Korf Industrie Und Handel Gmbh + Co Kg, 7570 Baden-Baden Verfahren zum schutz der duesen und der feuerfesten auskleidung eines gefaesses zum frischen einer metallschmelze
US4405365A (en) * 1982-08-30 1983-09-20 Pennsylvania Engineering Corporation Method for the fabrication of special steels in metallurgical vessels
US4795138A (en) * 1987-11-18 1989-01-03 L-Tec Company Metallurgical tuyere and method of calibrating same
CA2066455C (fr) * 1989-09-29 1995-12-19 John Millace Floyd Dispositif de soufflage par immersion d'une lance protegee
US5505762A (en) * 1991-04-23 1996-04-09 Commonwealth Scientific And Industrial Research Organisation Lance for immersion in a pyrometallurgical bath and method involving the lance
US5308043A (en) * 1991-09-20 1994-05-03 Ausmelt Pty. Ltd. Top submergable lance
AUPO095996A0 (en) * 1996-07-12 1996-08-01 Technological Resources Pty Limited A top injection lance
DE19638148A1 (de) * 1996-09-18 1998-03-19 Linde Ag Sauerstofflanze und Verfahren zum Verblasen von flüssigem Metall
US7976774B2 (en) * 2004-09-01 2011-07-12 Hatch Ltd. Composite sparger
US7968048B2 (en) * 2004-09-01 2011-06-28 Hatch Ltd. Composite sparger
BR112013033631B8 (pt) 2011-06-30 2023-03-28 Outotec Oyj Lanças de injeção submergida de topo
CA2844098C (fr) 2011-09-02 2016-01-05 Outotec Oyj Lances permettant une injection submergee par le haut
KR101248940B1 (ko) * 2011-09-19 2013-04-01 한국수력원자력 주식회사 용융로의 산소공급 장치
EA025696B1 (ru) 2011-11-30 2017-01-30 Ототек Оюй Охлаждаемая текучей средой верхняя погружная фурма
AU2013204818B2 (en) 2013-04-12 2015-02-19 Metso Metals Oy Molten bath temperature measurement for a top submerged lance injection installation
WO2015056142A1 (fr) 2013-10-16 2015-04-23 Outotec (Finland) Oy Lance d'injection submergée par le haut pour un transfert de chaleur augmenté
KR101700078B1 (ko) 2013-10-16 2017-01-26 오토텍 (핀랜드) 오와이 향상된 침지식 연소를 위한 상부 침지식 주입 랜스
RU2756679C1 (ru) * 2021-04-27 2021-10-04 Юрий Александрович Пузырев Способ комбинированной продувки расплава в конвертере

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2228845A1 (en) * 1973-05-12 1974-12-06 Maximilianshuette Eisenwerk Tuyere for refining gas e.g. oxygen - for blowing gas below the surface of a melt in a metallurgical vessel
FR2282474A1 (fr) * 1974-08-08 1976-03-19 Eisenwerk Ges Maximili Tuyere d'injection d'un gaz de reaction dans un creuset de fusion ou d'affinage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE781241A (fr) * 1971-05-28 1972-07-17 Creusot Loire Procede d'affinage des aciers allies contenant du chrome et plus specialement des aciers inoxydables
BE776428A (fr) * 1971-12-08 1972-04-04 Metallurg Ct Voor De Researchi Perfectionnements aux dispositifs d'insufflation d'oxygene par le fond d'un convertisseur metallurgique.
FR2238395A5 (fr) * 1973-07-17 1975-02-14 Est Aciers Fins

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2228845A1 (en) * 1973-05-12 1974-12-06 Maximilianshuette Eisenwerk Tuyere for refining gas e.g. oxygen - for blowing gas below the surface of a melt in a metallurgical vessel
FR2282474A1 (fr) * 1974-08-08 1976-03-19 Eisenwerk Ges Maximili Tuyere d'injection d'un gaz de reaction dans un creuset de fusion ou d'affinage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2547395A1 (fr) * 1983-06-13 1984-12-14 Nikko Kk Dispositif bruleur pour four de fusion metallurgique
EP0200405A1 (fr) * 1985-04-15 1986-11-05 British Steel Corporation Fusion de fers solides

Also Published As

Publication number Publication date
GB1566628A (en) 1980-05-08
IT1090204B (it) 1985-06-26
JPS5352210A (en) 1978-05-12
DE2741850A1 (de) 1978-03-23
FR2364971B1 (fr) 1980-10-17
US4023676A (en) 1977-05-17

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Legal Events

Date Code Title Description
ST Notification of lapse