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BR9812880A - Processo de fusão de ferro reduzido direto, granulado fino em um forno de arco elétrico - Google Patents

Processo de fusão de ferro reduzido direto, granulado fino em um forno de arco elétrico

Info

Publication number
BR9812880A
BR9812880A BR9812880-9A BR9812880A BR9812880A BR 9812880 A BR9812880 A BR 9812880A BR 9812880 A BR9812880 A BR 9812880A BR 9812880 A BR9812880 A BR 9812880A
Authority
BR
Brazil
Prior art keywords
direct reduced
electric arc
iron
bath
arc furnace
Prior art date
Application number
BR9812880-9A
Other languages
English (en)
Inventor
Heinz Eichberger
Michael Stroeder
Siegfried Schimo
William Wells
Original Assignee
Metallgesellschaft 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7844768&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR9812880(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Metallgesellschaft Ag filed Critical Metallgesellschaft Ag
Publication of BR9812880A publication Critical patent/BR9812880A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/14—Multi-stage processes processes carried out in different vessels or 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0026—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide in the flame of a burner or a hot gas stream
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/12—Making spongy iron or liquid steel, by direct processes 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
    • C21C5/527—Charging of the electric furnace
    • 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 Charging Or Discharging (AREA)

Abstract

Patente de Invenção: <B>"PROCESSO DE FUSãO DE FERRO REDUZIDO DIRETO, GRANULADO FINO EM UM FORNO DE ARCO ELéTRICO"<D>. O ferro reduzido direto (FRD) que por pelo menos 80% em peso tem um tamanho do grão de não mais do que 3 mm é fundido em um forno de arco elétrico. O forno contém um banho de ferro líquido. Durante a operação do forno é formada sobre o banho uma camada de escória espumosa e o ferro reduzido direto cai por gravidade através de pelo menos uma lança móvel na camada de escória espumosa sobre o banho de ferro. De preferência, a distância da abertura da lança até o banho de ferro é mantida praticamente constante.
BR9812880-9A 1997-10-07 1998-10-02 Processo de fusão de ferro reduzido direto, granulado fino em um forno de arco elétrico BR9812880A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19744151A DE19744151C5 (de) 1997-10-07 1997-10-07 Verfahren zum Schmelzen von feinkörnigem, direkt reduziertem Eisen in einem Elektrolichtbogenofen
PCT/EP1998/006276 WO1999018245A1 (de) 1997-10-07 1998-10-02 Verfahren zum schmelzen von feinkörnigem, direkt reduziertem eisen in einem elektrolichtbogenofen

Publications (1)

Publication Number Publication Date
BR9812880A true BR9812880A (pt) 2000-08-08

Family

ID=7844768

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9812880-9A BR9812880A (pt) 1997-10-07 1998-10-02 Processo de fusão de ferro reduzido direto, granulado fino em um forno de arco elétrico

Country Status (15)

Country Link
US (1) US6524362B1 (pt)
EP (1) EP1025267B2 (pt)
JP (1) JP4287044B2 (pt)
KR (1) KR100578464B1 (pt)
AR (1) AR016951A1 (pt)
AT (1) ATE209698T1 (pt)
AU (1) AU734802B2 (pt)
BR (1) BR9812880A (pt)
DE (2) DE19744151C5 (pt)
ES (1) ES2168801T5 (pt)
ID (1) ID28236A (pt)
RU (1) RU2205233C2 (pt)
UA (1) UA60347C2 (pt)
WO (1) WO1999018245A1 (pt)
ZA (1) ZA989098B (pt)

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JP2000038612A (ja) * 1998-07-17 2000-02-08 Mitsubishi Heavy Ind Ltd 溶鋼製造方法
AUPP554098A0 (en) * 1998-08-28 1998-09-17 Technological Resources Pty Limited A process and an apparatus for producing metals and metal alloys
LU90327B1 (fr) * 1998-12-16 2000-07-18 Wurth Paul Sa Proc-d- pour l'enfournement de fines dans un four - arc
AT407752B (de) 1999-04-22 2001-06-25 Voest Alpine Ind Anlagen Verfahren und einrichtung zum einschmelzen von metallhältigem material
LU90735B1 (fr) * 2001-02-23 2002-08-26 Wurth Paul Sa Proc-d- de production de fonte liquide
LU90788B1 (fr) * 2001-06-13 2002-12-16 Wurth Paul Sa Procédé de production de fonte liquide dans un four électrique
ES2215498T3 (es) * 2001-02-23 2005-10-16 Paul Wurth S.A. Procedimiento de produccion de fundicion liquida en un horno electrico.
US6875251B2 (en) * 2002-05-15 2005-04-05 Hatch Ltd. Continuous steelmaking process
DE10333764B3 (de) * 2003-07-23 2004-12-30 Outokumpu Oy Verfahren zum Chargieren von feinkörnigen Metallen in einen Elektrolichtbogenofen
AT502904B1 (de) 2005-12-07 2008-02-15 Voest Alpine Ind Anlagen Förderanlage, anlagenverbund und verfahren zur kopplung von metallurgischen verfahren
JP5330185B2 (ja) * 2009-10-08 2013-10-30 株式会社神戸製鋼所 溶融金属製造装置
NZ598672A (en) * 2009-10-08 2013-06-28 Kobe Steel Ltd Apparatus for manufacturing molten metal using a furnace with a sloping top
RU2476601C1 (ru) * 2011-07-14 2013-02-27 Учреждение Российской академии наук Институт металлургии и материаловедения им. А.А. Байкова РАН Способ электродугового углетермического восстановления железа из титаномагнетита с получением металлопродукта в виде порошка и гранул и устройство для его осуществления
KR101312061B1 (ko) 2011-12-27 2013-09-25 재단법인 포항산업과학연구원 초전도 전력을 이용한 직접 저항가열식 전기로
RU2511419C2 (ru) * 2012-08-21 2014-04-10 Генрих Алексеевич Дорофеев Способ жидкофазного получения железа прямого восстановления
RU2612330C2 (ru) * 2014-12-30 2017-03-07 Открытое акционерное общество "Научно-исследовательский институт металлургической теплотехники" (ОАО "ВНИИМТ") Способ прямого восстановления материалов, содержащих оксиды металлов, с получением расплава металла и устройство для осуществления способа
JP6729073B2 (ja) * 2016-06-29 2020-07-22 日本製鉄株式会社 酸化鉄含有鉄原料の還元・溶解方法
CN108842032B (zh) * 2018-09-14 2023-09-29 辽宁科技大学 一种还原处理废钢的装置及方法
RU2757772C2 (ru) * 2020-01-27 2021-10-21 Адель Талгатович Мулюков Способ прямого извлечения металлов из оксидных форм металлосодержащего сырья, различных видов руд, техногенных отходов и устройство для прямого извлечения металлов из различных форм в металлическую или другие оксидные фазы
CN114107779A (zh) * 2020-08-26 2022-03-01 宝山钢铁股份有限公司 一种超薄热轧宽带钢的制造方法
LU102322B1 (en) * 2020-12-17 2022-06-21 Wurth Paul Sa Green production route for low carbon, low nitrogen steel
US12497668B2 (en) * 2022-03-11 2025-12-16 Midrex Technologies, Inc. Hot metal production from DRI with electric arc heating
EP4558649A1 (en) * 2022-07-22 2025-05-28 Hertha Metals, Inc. Method and apparatus for metals, alloys, mattes, or enriched and cleaned slags production from predominantly oxide feeds
DE102022118640A1 (de) 2022-07-26 2024-02-01 Thyssenkrupp Steel Europe Ag Verfahren zur Herstellung einer Eisenschmelze in einem elektrischen Einschmelzer
US20250388985A1 (en) * 2022-07-29 2025-12-25 Arcelormittal A method for manufacturing pig iron in an electrical smelting furnace and associated electrical smelting furnace
CA3257412A1 (en) * 2022-07-29 2024-02-01 Arcelormittal METHOD FOR MANUFACTURING CROWN CART IN AN ELECTRIC MELTING FURNACE AND ASSOCIATED ELECTRIC MELTING FURNACE
CA3257767A1 (en) * 2022-07-29 2024-02-01 Arcelormittal METHOD FOR THE MANUFACTURE OF MELTED IRON IN AN ELECTRIC MELTING FURNACE
KR20250024063A (ko) * 2022-07-29 2025-02-18 아르셀러미탈 전기 제련로에서 선철을 제조하는 방법 및 연관된 전기 제련로
DE102023100464A1 (de) 2023-01-11 2024-07-11 Thyssenkrupp Steel Europe Ag Verfahren zum Betreiben eines Gleichstrom-Elektroofens zur Erzeugung einer Eisenschmelze und Flüssigschlacke
EP4521048A1 (de) 2023-09-08 2025-03-12 ThyssenKrupp Steel Europe AG Verfahren zum betreiben eines elektrischen einschmelzers

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GB1104693A (en) * 1964-02-25 1968-02-28 Nat Res Dev Improvements in or relating to the manufacture of superconducting solenoids
GB1161873A (en) * 1965-09-03 1969-08-20 Gerlad Gordon Hatch Improved Method of Manufacturing Steel and Alloys of Iron in the Arc Furnace.
US3472650A (en) 1965-09-03 1969-10-14 Canada Steel Co Electric-arc steelmaking
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DE3326505C2 (de) * 1983-07-21 1986-06-19 Mannesmann AG, 4000 Düsseldorf Beschickungsvorrichtung für metallurgische Öfen
US4564388A (en) * 1984-08-02 1986-01-14 Intersteel Technology, Inc. Method for continuous steelmaking
DE3931392A1 (de) * 1989-09-20 1991-03-28 Fuchs Systemtechnik Gmbh Verfahren und vorrichtung zum zumindest zeitweise gleichzeitigen beaufschlagen einer metallschmelze mit einem gas und feinkoernigen feststoffen
US5218617A (en) * 1990-06-01 1993-06-08 Hylsa S.A. De C.V. Apparatus for feeding iron-bearing materials to metallurgical furnaces
DE4307484A1 (de) * 1993-03-10 1994-09-15 Metallgesellschaft Ag Verfahren zur Direktreduktion von eisenoxidhaltigen Materialien mit festen kohlenstoffhaltigen Reduktionsmitteln
DE59403432D1 (de) * 1993-06-19 1997-08-28 Metallgesellschaft Ag Verfahren zur Direktreduktion von Eisenoxide enthaltenden Stoffen
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
US5407462A (en) * 1994-05-10 1995-04-18 Premelt Systems, Inc. Mass flow gravity feed method for charging metal-melting furnaces and apparatus therefor
US5705123A (en) * 1994-12-15 1998-01-06 Hayes Wheels International, Inc. Metal chip reclamation system
DE19608532A1 (de) * 1996-02-09 1997-08-14 Eisenbau Essen Gmbh Verfahren zum Kühlen einer oder mehrerer Elektroden in einem Lichtbogenofen

Also Published As

Publication number Publication date
EP1025267B1 (de) 2001-11-28
EP1025267A1 (de) 2000-08-09
DE19744151A1 (de) 1999-04-08
JP4287044B2 (ja) 2009-07-01
DE59802271D1 (de) 2002-01-10
AR016951A1 (es) 2001-08-01
UA60347C2 (uk) 2003-10-15
DE19744151C2 (de) 1999-08-19
KR100578464B1 (ko) 2006-05-12
ATE209698T1 (de) 2001-12-15
EP1025267B2 (de) 2004-09-15
WO1999018245A1 (de) 1999-04-15
AU1029199A (en) 1999-04-27
JP2001519473A (ja) 2001-10-23
RU2205233C2 (ru) 2003-05-27
DE19744151C5 (de) 2004-08-26
ES2168801T3 (es) 2002-06-16
US6524362B1 (en) 2003-02-25
ES2168801T5 (es) 2005-04-16
ID28236A (id) 2001-05-10
ZA989098B (en) 2000-04-06
KR20010024408A (ko) 2001-03-26
AU734802B2 (en) 2001-06-21

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Legal Events

Date Code Title Description
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B24H Lapse because of non-payment of annual fees (definitively: art 78 iv lpi)
B24F Patent annual fee: publication cancelled

Free format text: ANULADA A PUBLICACAO CODIGO 24.8 NA RPI NO 2258 DE 15/04/2014 POR TER SIDO INDEVIDA.

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

Free format text: REFERENTE AS 13A, 14A, 15A, 16A, 17A, 18A, 19A E 20A ANUIDADES.

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 2607 DE 22-12-2020 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.