BRPI0412256A - processo de carga de metais de granulometria fina em um forno a arco elétrico - Google Patents

processo de carga de metais de granulometria fina em um forno a arco elétrico

Info

Publication number
BRPI0412256A
BRPI0412256A BRPI0412256-9A BRPI0412256A BRPI0412256A BR PI0412256 A BRPI0412256 A BR PI0412256A BR PI0412256 A BRPI0412256 A BR PI0412256A BR PI0412256 A BRPI0412256 A BR PI0412256A
Authority
BR
Brazil
Prior art keywords
fine
electric arc
furnace
arc furnace
bulk material
Prior art date
Application number
BRPI0412256-9A
Other languages
English (en)
Inventor
Heinz Eichberger
Karl-Josef Schneider
Original Assignee
Outokumpu Oy
Sms Demag Ag
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 Outokumpu Oy, Sms Demag Ag filed Critical Outokumpu Oy
Publication of BRPI0412256A publication Critical patent/BRPI0412256A/pt
Publication of BRPI0412256B1 publication Critical patent/BRPI0412256B1/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
    • C21C5/527—Charging of the electric 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
    • 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
    • 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)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Furnace Details (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

"PROCESSO DE CARGA DE METAIS DE GRANULOMETRIA FINA EM UM FORNO A ARCO ELéTRICO". A presente invenção refere-se a um processo de carga de metais de granulometria fina, em particular ferro de redução direta (DRI), em um forno a arco elétrico (1), em que o metal é suprido via um tubo descendente (12) para uma abertura (10), proporcionada na abóbada do forno (4), é introduzido no forno (1) por essa abertura (10) como corrente de material a granel (11) e cai sobre o metal fundido (13) meramente por gravidade. Ainda mais, um forno a arco elétrico (1), adequado para essa finalidade, é descrito. Uma introdução relativamente isenta de perda uniforme de material de granulometria fina, tendo um tamanho de grão médio inferior a 1 mm, é obtida por passagem da corrente de material a granel (11), por um orifício de dosagem (8), após o tubo descendente (12) e antes de entrar no forno (1). A corrente de material a granel (11) depois entra no forno essencial e uniformemente.
BRPI0412256-9A 2003-07-23 2004-07-01 Processo de carga de metais de granulometria fina em um forno a arco elétrico BRPI0412256B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10333764.4 2003-07-23
DE10333764A DE10333764B3 (de) 2003-07-23 2003-07-23 Verfahren zum Chargieren von feinkörnigen Metallen in einen Elektrolichtbogenofen
PCT/EP2004/007153 WO2005014868A1 (en) 2003-07-23 2004-07-01 Method of charging fine-grained metals into an electric-arc furnace

Publications (2)

Publication Number Publication Date
BRPI0412256A true BRPI0412256A (pt) 2006-09-19
BRPI0412256B1 BRPI0412256B1 (pt) 2015-06-09

Family

ID=33483049

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0412256-9A BRPI0412256B1 (pt) 2003-07-23 2004-07-01 Processo de carga de metais de granulometria fina em um forno a arco elétrico

Country Status (15)

Country Link
US (1) US8391331B2 (pt)
EP (1) EP1660688B1 (pt)
KR (1) KR20060111902A (pt)
CN (1) CN1826417B (pt)
AR (1) AR045075A1 (pt)
AT (1) ATE350496T1 (pt)
AU (1) AU2004263608B2 (pt)
BR (1) BRPI0412256B1 (pt)
CA (1) CA2532927C (pt)
DE (2) DE10333764B3 (pt)
EA (1) EA008735B1 (pt)
ES (1) ES2279390T3 (pt)
TW (1) TW200508400A (pt)
WO (1) WO2005014868A1 (pt)
ZA (1) ZA200600897B (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1993325B1 (en) * 2007-04-09 2011-09-14 GrafTech International Holdings Inc. Graphite electrode of increased length
DE102010045825A1 (de) * 2010-09-20 2012-03-22 Intracon Gmbh Chargierschacht-System und Verfahren zum Befüllen
US9013778B2 (en) 2013-03-06 2015-04-21 Sage Electrochromics, Inc. Laser cuts to reduce electrical leakage
US9152001B2 (en) 2013-07-25 2015-10-06 Sage Electrochromics, Inc. Electrochromic devices having improved structure for reducing current leakage across lower transparent conductor layers
US20150153622A1 (en) 2013-12-03 2015-06-04 Sage Electrochromics, Inc. Methods for producing lower electrical isolation in electrochromic films
US10509291B2 (en) 2017-02-27 2019-12-17 Sage Electrochromics, Inc. Electrical device including a substrate and a transparent conductive layer and a process of forming the same

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3258328A (en) * 1962-08-23 1966-06-28 Fuji Iron & Steel Co Ltd Method and apparatus for treating steel
DE1217415B (de) * 1964-05-21 1966-05-26 Gussstahlwerk Oberkassel Ag Vo Verfahren zum Absaugen der Ofengase und zum Regeln des Ofendruckes eines Lichtbogenofens, insbesondere fuer die Stahlerzeugung und Vorrichtung zur Durchfuehrung des Verfahrens
US3472650A (en) * 1965-09-03 1969-10-14 Canada Steel Co Electric-arc steelmaking
FR1536190A (fr) 1965-09-03 1968-08-27 Metallgesellschaft Ag The Stee Procédé de préparation d'acier au four électrique
US3385494A (en) * 1966-09-15 1968-05-28 Strategic Material Corp Scrap melting
GB1193527A (en) 1968-10-04 1970-06-03 Ch Metall Zd Electric-Arc Furnace for Melting Synthetic Slag.
BE755725A (fr) * 1969-10-23 1971-02-15 Huettenwerk Oberhausen Ag Four a arc pourvu d'un dispositif chargeur d'eponge de fer
US4262057A (en) 1979-06-21 1981-04-14 Detrex Chemical Industries, Inc. Metal drawing compound composition and method of use
GB2115011B (en) 1982-02-17 1985-12-04 British Steel Corp Improvements in or relating to a process for melting and/or refining steel
US4514218A (en) * 1984-06-06 1985-04-30 Daidotokushuko Kabushikikaisha Reduced iron melting method using electric arc furnace
FR2681937A3 (en) 1991-09-30 1993-04-02 Irsid Device for continuously loading metallic products in loose form into a metallurgical furnace and metallurgical furnace equipped with a loading device
AT400245B (de) * 1993-12-10 1995-11-27 Voest Alpine Ind Anlagen Verfahren und anlage zum herstellen einer eisenschmelze
DE19608530C2 (de) * 1996-02-09 1999-01-14 Eisenbau Essen Gmbh Verwendung von reinem CO¶2¶-Gas oder einem im wesentlichen CO¶2¶ enthaltenden Gas als Trägergas bei der Behandlung von Stahl in einem Lichtbogenofen
DE19744151C5 (de) * 1997-10-07 2004-08-26 Outokumpu Oyj Verfahren zum Schmelzen von feinkörnigem, direkt reduziertem Eisen in einem Elektrolichtbogenofen
LU90327B1 (fr) * 1998-12-16 2000-07-18 Wurth Paul Sa Proc-d- pour l'enfournement de fines dans un four - arc
DE19945489A1 (de) 1999-09-22 2001-04-05 Sms Demag Ag Verfahren und Einrichtung zum Einbringen von Schüttgut in ein metallurgisches Gefäss
AT408663B (de) * 2000-05-31 2002-02-25 Voest Alpine Ind Anlagen Verfahren zum einschmelzen von eisenschwamm sowie elektrolichtbogenofen zur durchführung des verfahrens

Also Published As

Publication number Publication date
AU2004263608A1 (en) 2005-02-17
DE10333764B3 (de) 2004-12-30
BRPI0412256B1 (pt) 2015-06-09
EA200600302A1 (ru) 2006-06-30
CA2532927A1 (en) 2005-02-17
DE602004004159T2 (de) 2007-10-11
CN1826417B (zh) 2012-06-20
AR045075A1 (es) 2005-10-12
EA008735B1 (ru) 2007-08-31
TW200508400A (en) 2005-03-01
DE602004004159D1 (de) 2007-02-15
ATE350496T1 (de) 2007-01-15
ZA200600897B (en) 2007-05-30
US20070082312A1 (en) 2007-04-12
CA2532927C (en) 2011-09-06
WO2005014868A1 (en) 2005-02-17
AU2004263608B2 (en) 2009-07-23
US8391331B2 (en) 2013-03-05
EP1660688B1 (en) 2007-01-03
KR20060111902A (ko) 2006-10-30
ES2279390T3 (es) 2007-08-16
EP1660688A1 (en) 2006-05-31
CN1826417A (zh) 2006-08-30

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Legal Events

Date Code Title Description
B25D Requested change of name of applicant approved

Owner name: OUTOKUMPU TECHNOLOGY OY (FI) , SMS SIEMAG AKTIENGE

Free format text: ALTERADO DE: SMS DEMAG AKTIENGESELLSCHAFT

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B25F Entry of change of name and/or headquarter and transfer of application, patent and certif. of addition of invention: change of name on requirement

Owner name: OUTOKUMPU TECHNOLOGY OY (FI) , SMS SIEMAG AKTIENGE

Free format text: A FIM DE ATENDER AS ALTERACOES DE NOME E ENDERECO REQUERIDAS ATRAVES DA PETICAO NO 20140001068/RJ, DE 10/01/2014, E NECESSARIO APRESENTAR MAIS UMA GUIA DE ALTERACAO DE NOME, ALEM DA GUIA DE CUMPRIMENTO DE EXIGENCIA, POIS OCORRERAM DUAS ALTERACOES DE NOME E UMA DE ENDERECO.

B25D Requested change of name of applicant approved

Owner name: SMS SIEMAG AKTIENGESELLSCHAFT (DE) , OUTOKUMPU TEC

B25D Requested change of name of applicant approved

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B25G Requested change of headquarter approved

Owner name: SMS SIEMAG AKTIENGESELLSCHAFT (DE) , OUTOTEC OYJ (

B09A Decision: intention to grant [chapter 9.1 patent gazette]
B25A Requested transfer of rights approved

Owner name: OUTOTEC OYJ (FI) , OUTOKUMPU TECHNOLOGY OYJ (FI)

B25K Entry of change of name and/or headquarter and transfer of application, patent and certificate of addition of invention: republication

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

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