BR0012193A - Processo de otimizaçã o do funcionamento de um forno elétrico do tipo a arco submerso - Google Patents

Processo de otimizaçã o do funcionamento de um forno elétrico do tipo a arco submerso

Info

Publication number
BR0012193A
BR0012193A BR0012193-2A BR0012193A BR0012193A BR 0012193 A BR0012193 A BR 0012193A BR 0012193 A BR0012193 A BR 0012193A BR 0012193 A BR0012193 A BR 0012193A
Authority
BR
Brazil
Prior art keywords
slag
electrode
electric furnace
submerged arc
optimizing
Prior art date
Application number
BR0012193-2A
Other languages
English (en)
Inventor
Jean-Luc Roth
Original Assignee
Wurth Paul 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
Application filed by Wurth Paul Sa filed Critical Wurth Paul Sa
Publication of BR0012193A publication Critical patent/BR0012193A/pt

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
    • C21C5/52—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
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/54—Processes yielding slags of special composition
    • 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)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Discharge Heating (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

"PROCESSO DE OTIMIZAçãO DO FUNCIONAMENTO DE UM FORNO ELéTRICO DO TIPO A ARCO SUBMERSO". Apresenta-se um processo de otimização do funcionamento de um forno elétrico (10) do tipo a arco submerso, para a produção de metal líquido. O forno elétrico compreende pelo menos um eletrodo (18) e contém um banho de metal líquido (12), recoberto de uma espessa camada de escória líquida (16), que tem uma massa superficial de pelo menos 1 t/m^ 2^. Faz-se espumar a camada de escória localmente ao redor do dito pelo menos um eletrodo (18), de maneira a criar ao redor desse eletrodo (18) uma camada local de escória espumante (20), na qual a densidade da escória é pelo menos 50% mais baixa do que no resto do forno.
BR0012193-2A 1999-06-25 2000-06-22 Processo de otimizaçã o do funcionamento de um forno elétrico do tipo a arco submerso BR0012193A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU90409A LU90409B1 (fr) 1999-06-25 1999-06-25 Proc-d- d'optimisation du fonctionnement d'un four -lectrique du type - arc submerg-
PCT/EP2000/005788 WO2001000886A1 (fr) 1999-06-25 2000-06-22 Procede d'optimisation du fonctionnement d'un four electrique du type a arc submerge

Publications (1)

Publication Number Publication Date
BR0012193A true BR0012193A (pt) 2002-04-16

Family

ID=19731819

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0012193-2A BR0012193A (pt) 1999-06-25 2000-06-22 Processo de otimizaçã o do funcionamento de um forno elétrico do tipo a arco submerso

Country Status (13)

Country Link
US (1) US6635096B1 (pt)
EP (1) EP1200634B1 (pt)
JP (1) JP4776127B2 (pt)
CN (1) CN1197983C (pt)
AT (1) ATE245707T1 (pt)
AU (1) AU5406300A (pt)
BR (1) BR0012193A (pt)
DE (1) DE60004062T2 (pt)
ES (1) ES2202138T3 (pt)
LU (1) LU90409B1 (pt)
MX (1) MXPA02000062A (pt)
TW (1) TW428030B (pt)
WO (1) WO2001000886A1 (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412283B (de) * 2003-05-16 2004-12-27 Voest Alpine Ind Anlagen Verfahren zum verwerten von schlacke
DE10323505A1 (de) * 2003-05-24 2004-12-09 Sms Demag Ag Verfahren zur Erzeugung einer Schaumschlacke auf hochchromhaltigen Schmelzen in einem Elektroofen
DE102008028011A1 (de) * 2008-06-09 2009-12-10 Sms Siemag Aktiengesellschaft Verfahren zur Erzeugung einer Schaumschlacke auf austenitischen Rostfreischmelzen in einem Elektrolichtbogenofen
CN104422298A (zh) * 2013-08-27 2015-03-18 广西麦莎电气集团有限公司 矿热炉无功补偿远程无线通讯控制系统
RU2539890C1 (ru) * 2013-12-30 2015-01-27 Генрих Алексеевич Дорофеев Способ выплавки стали в электродуговой печи и электродуговая печь
EP3180453B1 (en) * 2014-08-14 2018-10-10 Umicore Process for smelting lithium-ion batteries
RU2610975C2 (ru) * 2015-08-10 2017-02-17 Генрих Алексеевич Дорофеев Способ выплавки стали в электродуговой печи
US20210188692A1 (en) * 2019-12-23 2021-06-24 Armstrong World Industries Inc. Continuous smelting and fiber spinning process
DE102022118640A1 (de) 2022-07-26 2024-02-01 Thyssenkrupp Steel Europe Ag Verfahren zur Herstellung einer Eisenschmelze in einem elektrischen Einschmelzer
DE102023105797A1 (de) 2023-03-09 2024-09-12 Thyssenkrupp Steel Europe Ag Verfahren zum Betreiben eines elektrischen Einschmelzers

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2608320C2 (de) * 1976-02-28 1978-12-07 Demag Ag Verfahren zum kontinuierlichen erschmelzen von stahl mit hohem reinheitsgrad
JPS5919170B2 (ja) * 1978-12-26 1984-05-02 大同特殊鋼株式会社 溶鋼の精錬方法
JPS5687617A (en) * 1979-12-19 1981-07-16 Daido Steel Co Ltd Steel making method using arc furnace
AT376702B (de) * 1983-04-06 1984-12-27 Voest Alpine Ag Verfahren zum betrieb einer metallurgischen anlage
US5279639A (en) * 1990-04-06 1994-01-18 Tam Ceramics, Inc. Compositions for synthesizing ladle slags
ATA155793A (de) * 1993-08-04 1996-04-15 Voest Alpine Ind Anlagen Verfahren zum herstellen einer metallschmelze und anlage zur durchführung des verfahrens
AT400245B (de) * 1993-12-10 1995-11-27 Voest Alpine Ind Anlagen Verfahren und anlage zum herstellen einer eisenschmelze

Also Published As

Publication number Publication date
JP4776127B2 (ja) 2011-09-21
DE60004062T2 (de) 2004-05-19
US6635096B1 (en) 2003-10-21
CN1357054A (zh) 2002-07-03
WO2001000886A1 (fr) 2001-01-04
ATE245707T1 (de) 2003-08-15
CN1197983C (zh) 2005-04-20
MXPA02000062A (es) 2002-07-02
LU90409B1 (fr) 2001-01-02
AU5406300A (en) 2001-01-31
EP1200634A1 (fr) 2002-05-02
ES2202138T3 (es) 2004-04-01
DE60004062D1 (de) 2003-08-28
JP2003503593A (ja) 2003-01-28
EP1200634B1 (fr) 2003-07-23
TW428030B (en) 2001-04-01

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Legal Events

Date Code Title Description
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 22/06/2000, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 13A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2258 DE 15-04-2014 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.