[go: up one dir, main page]

ES2134871T3 - Horno electrico de arco y metodo de funcionamiento. - Google Patents

Horno electrico de arco y metodo de funcionamiento.

Info

Publication number
ES2134871T3
ES2134871T3 ES94106115T ES94106115T ES2134871T3 ES 2134871 T3 ES2134871 T3 ES 2134871T3 ES 94106115 T ES94106115 T ES 94106115T ES 94106115 T ES94106115 T ES 94106115T ES 2134871 T3 ES2134871 T3 ES 2134871T3
Authority
ES
Spain
Prior art keywords
tuyères
furnace
oxygen
electric arc
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
ES94106115T
Other languages
English (en)
Inventor
Giovanni Coassin
Cecco Corrado De
Gianni Gensini
Sergio Gerussi
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.)
Danieli and C Officine Meccaniche SpA
Original Assignee
Danieli and C Officine Meccaniche SpA
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 ITUD930087A external-priority patent/IT1262873B/it
Priority claimed from IT000166 external-priority patent/IT1262183B/it
Application filed by Danieli and C Officine Meccaniche SpA filed Critical Danieli and C Officine Meccaniche SpA
Application granted granted Critical
Publication of ES2134871T3 publication Critical patent/ES2134871T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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; Electric arc furnaces ; Tank furnaces
    • F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
    • F27B3/20—Arrangements of heating devices
    • F27B3/205—Burners
    • 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
    • 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; Electric arc furnaces ; Tank furnaces
    • F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces heated electrically, with or without any other source of heat
    • F27B3/085—Arc furnaces
    • 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; Electric arc furnaces ; Tank furnaces
    • F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
    • F27B3/22—Arrangements of air or gas supply devices
    • F27B3/225—Oxygen blowing
    • 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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0033—Heating elements or systems using burners
    • F27D2099/0046—Heating elements or systems using burners with incomplete combustion, e.g. reducing atmosphere
    • F27D2099/0048—Post- combustion
    • 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
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
    • 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)
  • Mechanical Engineering (AREA)
  • General 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)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Furnace Details (AREA)

Abstract

HORNO DE ARCO ELECTRICO, CON FUENTES ALTERNATIVAS DE ENERGIA, QUE FUNCIONA CON CORRIENTE CONTINUA O CORRIENTE ALTERNA, Y QUE DISPONE DE MEDIOS PARA INYECTAR OXIGENO PURO O COMBINADO POR ENCIMA DEL BAÑO (16) MEDIANTE LANCETAS (12) Y POR DEBAJO MEDIANTE UNA PLURALIDAD DE TOBERAS (13), POSICIONADAS EN LA SOLERA DEL HORNO (10), ENFRIANDOSE LAS TOBERAS (13) POR MEDIO DE UN MOVIMIENTO PERIFERICO DE UNA MEZCLA REFRIGERANTE, FORMADA POR, AL MENOS, UN GAS QUE TIENE UN ALTO PODER REFRIGERANTE (METANO, BUTANO, GASES INERTES, ETC) Y, AL MENOS, UN GAS DILUENTE (NITROGENO, ANHIDRIDO CARBONICO), MEDIO (15) INCLUIDO PARA INTRODUCIR ADITIVOS Y/O CARBON PULVERIZADO, QUEMADORES (28) DE COMBUSTION DE PILARES, ESTANDO POSIBLEMENTE COMPRENDIDOS, INCLUYENDO LAS TOBERAS (13) UN CONDUCTO (18) DE ENTREGA DE OXIGENO, QUE TIENE UN DIAMETRO MAYOR DE 8 MM, SIENDO CAPAZ LA PRESION DEL OXIGENO DE MODULARSE CONFORME A LAS FASES DE TRABAJO, HABIENDO UNA PRESION DE ENTREGA MINIMA CONSTANTE. TAMBIEN SE DESCRIBE UN METODO DE FUSION, ASOCIADO CON EL HORNO ELECTRICO.
ES94106115T 1993-05-17 1994-04-20 Horno electrico de arco y metodo de funcionamiento. Expired - Lifetime ES2134871T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUD930087A IT1262873B (it) 1993-05-17 1993-05-17 Forno elettrico ad arco con sorgenti alternative di energia e procedimento di gestione relativo a detto forno elettrico
IT000166 IT1262183B (it) 1993-08-13 1993-08-13 Forno elettrico ad arco con sorgenti alternative di energia e procedimento di gestione relativo a detto forno elettrico

Publications (1)

Publication Number Publication Date
ES2134871T3 true ES2134871T3 (es) 1999-10-16

Family

ID=26332500

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94106115T Expired - Lifetime ES2134871T3 (es) 1993-05-17 1994-04-20 Horno electrico de arco y metodo de funcionamiento.

Country Status (11)

Country Link
US (1) US5444733A (es)
EP (1) EP0625685B1 (es)
KR (1) KR0140022B1 (es)
CN (1) CN1104757A (es)
AT (1) ATE182400T1 (es)
BR (1) BR9401982A (es)
CA (1) CA2122877A1 (es)
DE (1) DE69419564T2 (es)
ES (1) ES2134871T3 (es)
MX (1) MXPA94003396A (es)
TW (1) TW268999B (es)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5572544A (en) * 1994-07-21 1996-11-05 Praxair Technology, Inc. Electric arc furnace post combustion method
US5599375A (en) * 1994-08-29 1997-02-04 American Combustion, Inc. Method for electric steelmaking
IT1280115B1 (it) * 1995-01-17 1998-01-05 Danieli Off Mecc Procedimento di fusione per forno elettrico ad arco con sorgenti alternative di energia e relativo forno elettrico ad arco
US5822357A (en) * 1995-06-19 1998-10-13 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process for melting a charge in a furnace
FR2735563B1 (fr) * 1995-06-19 1997-07-25 Air Liquide Procede de fusion d'une charge dans un four
LU90055B1 (fr) * 1997-04-24 1998-10-26 Wurth Paul Sa Procédé de fusion d'alliages à base de fer dans un four électrique
IT1299725B1 (it) 1998-01-23 2000-04-04 Danieli Off Mecc Procedimento di alimentazione per tubiere per forno elettrico e relativo dispostivo di alimentazione
US5943360A (en) * 1998-04-17 1999-08-24 Fuchs Systems, Inc. Electric arc furnace that uses post combustion
US5999557A (en) * 1998-06-19 1999-12-07 The Broken Hill Proprietary Company Steel making bath control
AUPP554098A0 (en) * 1998-08-28 1998-09-17 Technological Resources Pty Limited A process and an apparatus for producing metals and metal alloys
AU2279901A (en) 1999-12-20 2001-07-03 Henry Moncrieff O'connor Method for generating and displaying complex data utilizing color-coded signals
US6289035B1 (en) * 2000-02-10 2001-09-11 Valery G. Shver Mounting arrangement for auxiliary burner or lance
US6614831B2 (en) * 2000-02-10 2003-09-02 Process Technology International, Inc. Mounting arrangement for auxiliary burner or lance
US6805724B2 (en) * 2000-02-10 2004-10-19 Process Technology International, Inc. Method for particulate introduction for metal furnaces
US6212218B1 (en) * 2000-04-25 2001-04-03 Process Technology International, Inc. Reusable lance with consumable refractory tip
DE10120160A1 (de) * 2001-04-10 2002-10-24 Heinz Mitbauer Verfahren und Vorrichtung zum Durchführen einer thermischen Reaktion
US7695535B2 (en) * 2001-10-10 2010-04-13 River Basin Energy, Inc. Process for in-situ passivation of partially-dried coal
US8197561B2 (en) * 2001-10-10 2012-06-12 River Basin Energy, Inc. Process for drying coal
US7537622B2 (en) * 2001-10-10 2009-05-26 Fmi Newcoal, Inc. Process for drying coal
US20030236489A1 (en) 2002-06-21 2003-12-25 Baxter International, Inc. Method and apparatus for closed-loop flow control system
US7951325B2 (en) * 2006-05-17 2011-05-31 Air Liquide Advanced Technologies U.S. Llc Methods of implementing a water-cooling system into a burner panel and related apparatuses
US7824604B2 (en) * 2006-05-17 2010-11-02 Air Liquide Advanced Technologies U.S. Llc Methods of implementing a water-cooling system into a burner panel and related apparatuses
US8520714B2 (en) * 2008-03-28 2013-08-27 Air Liquide Advanced Technologies U.S. Llc Burner/injector panel apparatus
AT507607B1 (de) 2008-11-28 2011-02-15 Siemens Vai Metals Tech Gmbh Düse zum eindüsen von sauerstoffhaltigem gas in ein roheisenaggregat mit injektoreinsatzröhre
US9057037B2 (en) 2010-04-20 2015-06-16 River Basin Energy, Inc. Post torrefaction biomass pelletization
US8956426B2 (en) 2010-04-20 2015-02-17 River Basin Energy, Inc. Method of drying biomass
US20120224601A1 (en) 2011-03-01 2012-09-06 Air Liquide Advanced Technologies U.S. Llc Burner and/or injector panel apparatus, methods of installation and use of the same in a metal-melting furnace, and metal-melting furnace including the same
US9068779B2 (en) 2013-03-15 2015-06-30 L'Air Liquide SociétéAnonyme Pour L 'Étude Et L Eploitation Des Procedes Georges Claude Water-cooled burner and/or injector panel kits, water-cooled burner and/or injector panel apparatus, and methods of using the same
KR101755948B1 (ko) * 2015-12-21 2017-07-10 주식회사 포스코 Dc전기로
CN106119543B (zh) * 2016-07-01 2019-03-08 北京中凯宏德科技有限公司 冶金电炉及熔炼方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909422A (en) * 1957-07-02 1959-10-20 Union Carbide Corp Method of improving the quality and productivity of electric arc furnace steel
US3459867A (en) * 1967-08-10 1969-08-05 Air Reduction Direct arc furnace
GB1253581A (en) * 1968-02-24 1971-11-17 Maximilianshuette Eisenwerk Improvements in processes and apparatus for making steel
DE2160999A1 (de) * 1971-12-09 1973-06-28 Maximilianshuette Eisenwerk Duese zum einleiten von sauerstoff mit einem schutzmedium in konvertergefaesse
US3907549A (en) * 1972-08-29 1975-09-23 United States Steel Corp Method of refining in improved Q-BOP vessel
US3802685A (en) * 1972-08-29 1974-04-09 Steel Corp Q-bop vessel construction
US3902889A (en) * 1972-11-30 1975-09-02 United States Steel Corp Electric arc melting furnace
AR207871A1 (es) * 1974-08-08 1976-11-08 Maximilianshuette Eisenwerk Tobera de inyeccion de gas reactivo en recipientes de fusion o de afino para metales
FR2323763A1 (fr) * 1975-09-15 1977-04-08 Toshin Steel Co Procede et appareil pour l'elaboration de l'acier
CA1311787C (en) * 1986-06-24 1992-12-22 Masahisa Tate Method of bottom blowing operation of a steel making electric furnace
DE3629055A1 (de) * 1986-08-27 1988-03-03 Kloeckner Cra Tech Verfahren zum gesteigerten energieeinbringen in elektrolichtbogenoefen
DE3806977A1 (de) * 1988-03-03 1989-09-14 Fuchs Systemtechnik Gmbh Verfahren zum regeln des durchflusses beim einblasen eines gases durch einen bodenspuelstein waehrend des einschmelzens von metallen
GB9126068D0 (en) * 1991-12-07 1992-02-05 Air Prod & Chem Tuyere for installation in hearth of electric arc furnace

Also Published As

Publication number Publication date
EP0625685B1 (en) 1999-07-21
US5444733A (en) 1995-08-22
BR9401982A (pt) 1994-12-13
DE69419564T2 (de) 1999-12-30
ATE182400T1 (de) 1999-08-15
MXPA94003396A (es) 2008-12-12
TW268999B (es) 1996-01-21
DE69419564D1 (de) 1999-08-26
CA2122877A1 (en) 1994-11-18
KR0140022B1 (ko) 1998-07-15
CN1104757A (zh) 1995-07-05
EP0625685A1 (en) 1994-11-23

Similar Documents

Publication Publication Date Title
ES2134871T3 (es) Horno electrico de arco y metodo de funcionamiento.
BR9600458A (pt) Método de fusão para forno a arco elétrico com fontes alternativas de energia e forno a arco elétrico
CA2484472A1 (en) Hazardous waste treatment method and apparatus
HUT68698A (en) Method and apparatus for continuous scrap preheating
SE8206786L (sv) Reaktor for jerntillverkning
MY113199A (en) Reduction of emissions from fcc regenerators
WO1999010544A8 (en) Direct iron and steelmaking
CA2240706C (en) Production of direct reduced iron with reduced fuel consumption and emission of carbon monoxide
ES2169593T3 (es) Metodo y dispositivo de alimentacion de gas premezclado a toberas de un electrohorno de arco.
KR100187693B1 (ko) 고철 용해 방법
GB1499451A (en) Method and apparatus for melting metals
IT1262183B (it) Forno elettrico ad arco con sorgenti alternative di energia e procedimento di gestione relativo a detto forno elettrico
CA2251099A1 (en) Recovery of metal from dross
ES2081455T3 (es) Procedimiento y dispositivo de fusion de una carga en un horno.
GB1072121A (en) Treatment of metal
IT1262873B (it) Forno elettrico ad arco con sorgenti alternative di energia e procedimento di gestione relativo a detto forno elettrico
PL315238A1 (en) Method of operating a shaft furnace with oxygen admission and shaft furnace with oxygen admission
JPS54158319A (en) Manufacture of medium carbon molten ferrochromium
RU2126847C1 (ru) Способ переработки бытовых и промышленных отходов
KR101388063B1 (ko) 전기로에서의 슬래그 포밍 방법
SU664999A1 (ru) Способ ведени доменной плавки
Sugiura et al. Development of a Pulverized Coal Burner
RU2148085C1 (ru) Способ выплавки ферромарганца в доменной печи
EP0857792A1 (en) Electric arc furnace slag foaming
JPH05261358A (ja) 焼却灰の溶融方法及び溶融装置

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 625685

Country of ref document: ES