DE69806290D1 - Verfahren mit Brenner bzw. Lanze zum Einblasen von Gas in eine Metallschmelze - Google Patents

Verfahren mit Brenner bzw. Lanze zum Einblasen von Gas in eine Metallschmelze

Info

Publication number
DE69806290D1
DE69806290D1 DE69806290T DE69806290T DE69806290D1 DE 69806290 D1 DE69806290 D1 DE 69806290D1 DE 69806290 T DE69806290 T DE 69806290T DE 69806290 T DE69806290 T DE 69806290T DE 69806290 D1 DE69806290 D1 DE 69806290D1
Authority
DE
Germany
Prior art keywords
lance
burner
molten metal
blowing gas
blowing
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.)
Revoked
Application number
DE69806290T
Other languages
English (en)
Other versions
DE69806290T2 (de
Inventor
Pravin Chandra Mathur
Ronald Joseph Selines
John Erling Anderson
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.)
Praxair Technology Inc
Original Assignee
Praxair Technology 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25229145&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69806290(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Praxair Technology Inc filed Critical Praxair Technology Inc
Publication of DE69806290D1 publication Critical patent/DE69806290D1/de
Application granted granted Critical
Publication of DE69806290T2 publication Critical patent/DE69806290T2/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/22—Arrangements of air or gas supply devices
    • F27B3/225—Oxygen blowing
    • 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
    • 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
    • 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
    • C21C5/4606—Lances or injectors
    • C21C5/4613—Refractory coated lances; Immersion lances
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Furnace Details (AREA)
DE69806290T 1997-03-18 1998-03-16 Verfahren mit Brenner bzw. Lanze zum Einblasen von Gas in eine Metallschmelze Revoked DE69806290T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81981297A 1997-03-18 1997-03-18

Publications (2)

Publication Number Publication Date
DE69806290D1 true DE69806290D1 (de) 2002-08-08
DE69806290T2 DE69806290T2 (de) 2003-03-06

Family

ID=25229145

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69806290T Revoked DE69806290T2 (de) 1997-03-18 1998-03-16 Verfahren mit Brenner bzw. Lanze zum Einblasen von Gas in eine Metallschmelze

Country Status (11)

Country Link
US (1) US6125133A (de)
EP (1) EP0866139B1 (de)
JP (1) JP3774319B2 (de)
KR (1) KR100368518B1 (de)
CN (1) CN1140760C (de)
BR (1) BR9800905A (de)
CA (1) CA2232219C (de)
DE (1) DE69806290T2 (de)
ES (1) ES2175544T3 (de)
ID (1) ID20060A (de)
ZA (1) ZA987865B (de)

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FR2797738A1 (fr) * 1999-08-18 2001-02-23 Air Liquide Procede d'injection d'un gaz supersonique dans un four a arc electrique et four a arc pour la mise en oeuvre de ce procede
US6142764A (en) * 1999-09-02 2000-11-07 Praxair Technology, Inc. Method for changing the length of a coherent jet
US6261338B1 (en) 1999-10-12 2001-07-17 Praxair Technology, Inc. Gas and powder delivery system and method of use
US6139310A (en) * 1999-11-16 2000-10-31 Praxair Technology, Inc. System for producing a single coherent jet
US6241510B1 (en) 2000-02-02 2001-06-05 Praxair Technology, Inc. System for providing proximate turbulent and coherent gas jets
US6250915B1 (en) 2000-03-29 2001-06-26 The Boc Group, Inc. Burner and combustion method for heating surfaces susceptible to oxidation or reduction
US6334976B1 (en) 2000-08-03 2002-01-01 Praxair Technology, Inc. Fluid cooled coherent jet lance
EP1179602A1 (de) * 2000-08-07 2002-02-13 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Verfahren zum Einblasen eines Gases mit Hilfe einer Düse
FR2816324B1 (fr) * 2000-11-09 2003-01-24 Air Liquide Procede d'injection d'un gaz a l'aide d'une tuyere
FR2822939A1 (fr) * 2001-03-29 2002-10-04 Air Liquide Procede d'injection d'oxygene dans un four
US6400747B1 (en) 2001-05-18 2002-06-04 Praxair Technology, Inc. Quadrilateral assembly for coherent jet lancing and post combustion in an electric arc furnace
US6432163B1 (en) * 2001-06-22 2002-08-13 Praxair Technology, Inc. Metal refining method using differing refining oxygen sequence
US6450799B1 (en) 2001-12-04 2002-09-17 Praxair Technology, Inc. Coherent jet system using liquid fuel flame shroud
JP3864092B2 (ja) * 2002-01-10 2006-12-27 東京瓦斯株式会社 難燃性物質分解バーナ
GB0209365D0 (en) 2002-04-24 2002-06-05 Boc Group Plc Injection of solids into liquids
US6875251B2 (en) * 2002-05-15 2005-04-05 Hatch Ltd. Continuous steelmaking process
GB0213376D0 (en) * 2002-06-11 2002-07-24 Boc Group Plc Refining ferroalloys
US6773484B2 (en) 2002-06-26 2004-08-10 Praxair Technology, Inc. Extensionless coherent jet system with aligned flame envelope ports
US20040178545A1 (en) * 2003-03-14 2004-09-16 Cates Larry E. System for optically analyzing a molten metal bath
US20050145071A1 (en) * 2003-03-14 2005-07-07 Cates Larry E. System for optically analyzing a molten metal bath
US6932854B2 (en) * 2004-01-23 2005-08-23 Praxair Technology, Inc. Method for producing low carbon steel
WO2005079431A2 (en) * 2004-02-16 2005-09-01 Measurement Technology Laboratories Corporation Particulate filter and method of use
ATE437245T1 (de) * 2004-05-14 2009-08-15 Linde Inc Feinen von schmelzflüssigem metall
US7438848B2 (en) * 2004-06-30 2008-10-21 The Boc Group, Inc. Metallurgical lance
ITMI20050241A1 (it) * 2005-02-18 2006-08-19 Techint Spa Iniettore multifunzione e relativo procedimento di combustione per trattamento metallurgico in un forno ad arco elettrico
GB0511883D0 (en) * 2005-06-10 2005-07-20 Boc Group Plc Manufacture of ferroalloys
US7297180B2 (en) * 2005-07-13 2007-11-20 Praxair Technology, Inc. Method for operating a vacuum vessel with a coherent jet
US8696348B2 (en) * 2006-04-26 2014-04-15 Air Products And Chemicals, Inc. Ultra-low NOx burner assembly
US7452401B2 (en) * 2006-06-28 2008-11-18 Praxair Technology, Inc. Oxygen injection method
US7959708B2 (en) * 2006-12-15 2011-06-14 Praxair Technology, Inc. Injection method for inert gas
ITUD20060277A1 (it) † 2006-12-27 2008-06-28 Danieli Off Mecc Dispositivo e metodo per la misurazione della temperatura del metallo liquido in un forno elettrico
EP2080972A1 (de) * 2008-01-08 2009-07-22 L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Kombiniertes Brenn- und Lanzengerät für Lichtbogenöfen
US8202470B2 (en) * 2009-03-24 2012-06-19 Fives North American Combustion, Inc. Low NOx fuel injection for an indurating furnace
US8142711B2 (en) * 2009-04-02 2012-03-27 Nu-Core, Inc. Forged copper burner enclosure
US8323558B2 (en) * 2009-11-30 2012-12-04 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dynamic control of lance utilizing counterflow fluidic techniques
US20110127701A1 (en) * 2009-11-30 2011-06-02 Grant Michael G K Dynamic control of lance utilizing co-flow fluidic techniques
US8377372B2 (en) * 2009-11-30 2013-02-19 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dynamic lances utilizing fluidic techniques
US8992656B2 (en) * 2011-12-21 2015-03-31 Praxair Technology, Inc. Controllable solids injection
DE102014213744A1 (de) * 2014-07-15 2016-01-21 Primetals Technologies Germany Gmbh Elektrischer Lichtbogenofen mit einer Sicherheitsvorrichtung und Verfahren zur Sicherung von Peripheriegeräten an elektrischen Lichtbogenöfen
US10234206B2 (en) 2014-11-05 2019-03-19 Daido Steel Co., Ltd. Electric arc furnace
US10215494B2 (en) 2014-11-05 2019-02-26 Daido Steel Co., Ltd. Method of operating electric arc furnace
FR3037059B1 (fr) * 2015-06-02 2017-06-16 Saint-Gobain Emballage Four a injection sonique
CN106500514B (zh) * 2016-10-19 2019-03-12 嘉峪关宏电铁合金有限责任公司 一种防止矿热炉电极偏斜的方法
CN109628689B (zh) * 2019-02-27 2020-12-04 中冶赛迪工程技术股份有限公司 高铁水比电炉供氧方法
JP7040667B2 (ja) * 2019-11-06 2022-03-23 Ｊｆｅスチール株式会社 電気炉による溶鉄の製造方法
JP7091386B2 (ja) * 2020-04-27 2022-06-27 大陽日酸株式会社 酸素バーナ

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Also Published As

Publication number Publication date
EP0866139A1 (de) 1998-09-23
ZA987865B (en) 1999-03-02
CN1140760C (zh) 2004-03-03
KR19980080280A (ko) 1998-11-25
JPH10259413A (ja) 1998-09-29
BR9800905A (pt) 1999-09-28
JP3774319B2 (ja) 2006-05-10
CN1198525A (zh) 1998-11-11
CA2232219C (en) 2005-01-11
ES2175544T3 (es) 2002-11-16
CA2232219A1 (en) 1998-09-18
US6125133A (en) 2000-09-26
ID20060A (id) 1998-09-24
DE69806290T2 (de) 2003-03-06
KR100368518B1 (ko) 2003-04-21
EP0866139B1 (de) 2002-07-03

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation