ES2188587T3 - Proceso y aparato para desgasificacion por vacio de acero fundido. - Google Patents

Proceso y aparato para desgasificacion por vacio de acero fundido.

Info

Publication number
ES2188587T3
ES2188587T3 ES93113599T ES93113599T ES2188587T3 ES 2188587 T3 ES2188587 T3 ES 2188587T3 ES 93113599 T ES93113599 T ES 93113599T ES 93113599 T ES93113599 T ES 93113599T ES 2188587 T3 ES2188587 T3 ES 2188587T3
Authority
ES
Spain
Prior art keywords
blowed
steel
gas
launch
fuel 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.)
Expired - Lifetime
Application number
ES93113599T
Other languages
English (en)
Inventor
Kazuo Oonuki
Teruyoshi Hiraoka
Hiroshi Nagahama
Kazuhisa Fukuda
Akira Nobumoto
Takahiro Isono
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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 claimed from JP4227469A external-priority patent/JP2759021B2/ja
Priority claimed from JP4227633A external-priority patent/JP2688310B2/ja
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Application granted granted Critical
Publication of ES2188587T3 publication Critical patent/ES2188587T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F27D2003/162—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel
    • F27D2003/163—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel the fluid being an oxidant
    • F27D2003/164—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F27D2003/162—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel
    • F27D2003/165—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel the fluid being a fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F27D2003/168—Introducing a fluid jet or current into the charge through a lance

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

ACERO FUNDIDO SE TRATA EFICAZMENTE AL VACIO EN UN RECIPIENTE DE TRATAMIENTO AL VACIO, PROVISTO DE LANZA 1 DE SOPLADO POR LA PARTE SUPERIOR, CAPAZ DE INYECTAR UN GAS 6 DE OXIGENO Y UN GAS 8 COMBUSTIBLE, A RITMOS CONVENIENTES DE FLUJO RESPECTIVAMENTE, SOBRE ACERO FUNDIDO, SOBRE LA PARTE SUPERIOR DEL RECIPIENTE 9 DE TRATAMIENTO AL VACIO, EN UNA FORMA MOVIL LIBRE Y VERTICALMENTE, TENIENDO UNA COMBINACION ADECUADA DE UNA FASE DE ASENTAMIENTO DEL EXTREMO INFERIOR DE LA LANZA 1 DE SOPLADO POR LA PARTE SUPERIOR A UN NIVEL DE NO MAS DE 2 M DESDE LA SUPERFICIE DEL BAÑO DE ACERO FUNDIDO, E INYECTANDO SOLAMENTE UN GAS DE OXIGENO SOBRE EL ACERO FUNDIDO, Y UNA FASE DE ASENTAMIENTO DEL EXTREMO INFERIOR DE LA LANZA DE SOPLADO POR LA PARTE SUPERIOR A UN NIVEL DE 1''0 M O MAS DESDE LA SUPERFICIE DEL BAÑO DE ACERO FUNDIDO, E INYECTANDO TANTO EL GAS DE OXIGENO COMO EL GAS DE COMBUSTIBLE DESDE LA LANZA DE SOPLADO POR LA PARTE SUPERIOR SOBRE EL ACERO FUNDIDO, EVITANDO CON ELLO UNA DISMINUCION DE LA TEMPERATURA DEL ACERO FUNDIDO DURANTE EL TRATAMIENTO AL VACIO Y EVITANDO TAMBIEN LA DEPOSICION DEL ACERO FUNDIDO SOBRE LA PARED INTERNA DEL RECIPIENTE DE TRATAMIENTO AL VACIO, SIN USAR UN CALENTADOR EN GRAN ESCALA DEL TIPO DE RESISTENCIA ELECTRICA. LA LANZA 1 DE SOPLADO POR LA PARTE SUPERIOR COMPRENDE UNA ZONA DE INYECCION DE OXIGENO, QUE A SU VEZ COMPRENDE UNA PARTE 2 DE ENTRADA Y UNA ZONA 3 AHUSADA, CONECTADA AL EXTREMO INFERIOR DE LA PARTE 2 DE ENTRADA, PROVISTA A LO LARGO DE LA LINEA CENTRAL AXIAL DE LA LANZA, Y UNA PLURALIDAD DE ORIFICIOS 4 DE SUMINISTRO DE GAS EN LA ZONA 3 AHUSADA O CONICA.
ES93113599T 1992-08-26 1993-08-25 Proceso y aparato para desgasificacion por vacio de acero fundido. Expired - Lifetime ES2188587T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4227469A JP2759021B2 (ja) 1992-08-26 1992-08-26 溶鋼の真空脱ガス処理方法
JP4227633A JP2688310B2 (ja) 1992-08-26 1992-08-26 真空脱ガス装置

Publications (1)

Publication Number Publication Date
ES2188587T3 true ES2188587T3 (es) 2003-07-01

Family

ID=26527688

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93113599T Expired - Lifetime ES2188587T3 (es) 1992-08-26 1993-08-25 Proceso y aparato para desgasificacion por vacio de acero fundido.

Country Status (9)

Country Link
US (1) US5413623A (es)
EP (1) EP0584814B1 (es)
KR (1) KR960009169B1 (es)
CN (2) CN1034591C (es)
AU (2) AU653294B2 (es)
BR (1) BR9303475A (es)
CA (1) CA2104910C (es)
DE (1) DE69332574T2 (es)
ES (1) ES2188587T3 (es)

Families Citing this family (23)

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DE4442362C1 (de) * 1994-11-18 1996-04-18 Mannesmann Ag Verfahren und Vorrichtung zum Behandeln von einer in einem metallurgischen Gefäß befindlichen Metallschmelze
DE19518361C1 (de) * 1995-05-19 1996-08-08 Technometal Ges Fuer Metalltec Vakuumdichtes Reaktionsgefäß für die Stahlbehandlung mit einer Stopfbuchse
KR100214927B1 (ko) * 1995-08-01 1999-08-02 아사무라 타카싯 용강의 진공 정련 방법
KR100270113B1 (ko) * 1996-10-08 2000-10-16 이구택 극저탄소강의 용강 제조장치
DE19811722C1 (de) * 1998-03-18 1999-09-09 Sms Vacmetal Ges Fuer Vacuumme Vorrichtung zum Vakuumfrischen von Metall-, insbesondere Stahlschmelzen
DE19817590C1 (de) * 1998-04-20 1999-03-18 Technometal Ges Fuer Metalltec Variabel einsetzbare Kombilanze
CA2371652A1 (en) * 1999-05-07 2000-11-16 Frank Haers Method of decarburisation and dephosphorisation of a molten metal
JP3666301B2 (ja) 1999-05-21 2005-06-29 Ｊｆｅスチール株式会社 真空脱ガス槽用複合ランス及びその使用方法
US6641682B1 (en) * 1999-05-31 2003-11-04 Toyo Kohan Co., Ltd. Method for manufacturing an aperture grill material for color picture tube
RU2213147C2 (ru) * 2001-09-28 2003-09-27 Шатохин Игорь Михайлович Способ циркуляционного вакуумирования жидкого металла, система и устройства для его осуществления
US7452401B2 (en) * 2006-06-28 2008-11-18 Praxair Technology, Inc. Oxygen injection method
RU2325448C2 (ru) * 2006-07-06 2008-05-27 Открытое акционерное общество "Магнитогорский металлургический комбинат" Способ внепечной обработки стали
WO2008076901A1 (en) * 2006-12-15 2008-06-26 Praxair Technology, Inc. Injection method for inert gas
EP3147376B1 (en) 2008-08-04 2018-10-17 Nucor Corporation Low cost making of a low carbon, low sulfur, and low nitrogen steel using conventional steelmaking equipment
UA104595C2 (uk) * 2008-08-04 2014-02-25 Ньюкор Корпорейшн Спосіб виробництва низьковуглецевої низькосірчистої низькоазотистої сталі з використанням звичайного сталеплавильного обладнання
JP5606320B2 (ja) * 2008-09-16 2014-10-15 株式会社Ｉｓｔｃ 溶鉄の製造方法
US8523977B2 (en) 2011-01-14 2013-09-03 Nucor Corporation Method of desulfurizing steel
CN103056089A (zh) * 2012-12-18 2013-04-24 江西铜业股份有限公司 一种氧化、还原风管的制备工艺
JP6347200B2 (ja) * 2014-10-10 2018-06-27 新日鐵住金株式会社 Ｒｈ真空脱ガス設備の上吹きランス装置
KR102150412B1 (ko) 2016-02-24 2020-09-01 제이에프이 스틸 가부시키가이샤 진공 탈가스 설비에 있어서의 용강의 정련 방법
WO2019040704A1 (en) 2017-08-24 2019-02-28 Nucor Corporation IMPROVED MANUFACTURE OF LOW CARBON STEEL
CN109880973A (zh) * 2019-03-05 2019-06-14 北京科技大学 一种rh精炼过程钢液加热的方法
CN114480946B (zh) * 2020-11-12 2023-06-09 上海梅山钢铁股份有限公司 一种低铝包晶钢钢水的生产方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1226568A (fr) * 1959-02-21 1960-07-13 Siderurgie Fse Inst Rech Brûleur à flamme stable et à forte concentration calorifique obtenue par onde de choc
GB1145409A (en) * 1966-08-24 1969-03-12 Exxon Research Engineering Co Improvements in lance heads for thermal processes
US3439072A (en) * 1967-05-23 1969-04-15 United States Steel Corp Method of pre-heating a refractory lined vessel
GB1253581A (en) * 1968-02-24 1971-11-17 Maximilianshuette Eisenwerk Improvements in processes and apparatus for making steel
DE1904442B2 (de) * 1969-01-30 1978-01-19 Hoesch Werke Ag, 4600 Dortmund Verfahren zum vakuumfrischen von metallschmelzen
SE354082B (es) * 1970-10-01 1973-02-26 Stal Laval Apparat Ab
JPS5381416A (en) * 1976-12-28 1978-07-18 Nippon Steel Corp Vacuum degassing method for molten steel
JPS64217A (en) * 1987-02-06 1989-01-05 Kawasaki Steel Corp Vacuum refining method for molten steel
JPH01195239A (ja) * 1988-01-29 1989-08-07 Kawasaki Steel Corp 真空脱ガス槽内加熱方法およびその装置
EP0328851A1 (en) * 1988-02-16 1989-08-23 Acciaierie E Ferriere Lombarde Falck S.P.A. An apparatus for decarbonizing steels directly in the ladle
CA1337846C (en) * 1988-06-21 1996-01-02 Hiroshi Nishikawa Process for vacuum degassing and decarbonization with temperature drop compensating feature
JP2575827B2 (ja) * 1988-07-18 1997-01-29 川崎製鉄株式会社 清浄度に優れた連続鋳造用極低炭素鋼の製造方法
US5221326A (en) * 1990-05-17 1993-06-22 Kawasaki Steel Corporation Method of producing ultra-low-carbon steel
AU657131B2 (en) * 1991-04-23 1995-03-02 Commonwealth Scientific And Industrial Research Organisation Lance for immersion in a pyrometallurgical bath and method involving the lance
AU647669B2 (en) * 1991-09-20 1994-03-24 Ausmelt Pty Ltd Top submergable lance

Also Published As

Publication number Publication date
CA2104910A1 (en) 1994-02-27
AU664339B2 (en) 1995-11-09
KR960009169B1 (en) 1996-07-16
EP0584814A2 (en) 1994-03-02
CN1044821C (zh) 1999-08-25
EP0584814A3 (en) 1994-09-07
KR940004063A (ko) 1994-03-14
DE69332574D1 (de) 2003-01-30
BR9303475A (pt) 1994-03-15
US5413623A (en) 1995-05-09
CA2104910C (en) 1999-11-16
CN1136085A (zh) 1996-11-20
DE69332574T2 (de) 2003-04-24
CN1084222A (zh) 1994-03-23
EP0584814B1 (en) 2002-12-18
CN1034591C (zh) 1997-04-16
AU653294B2 (en) 1994-09-22
AU4478993A (en) 1994-03-17
AU6874894A (en) 1994-10-20

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