BR112018071758A2 - método e aparelho para produção de ferro fundido, e, ferro fundido. - Google Patents

método e aparelho para produção de ferro fundido, e, ferro fundido.

Info

Publication number
BR112018071758A2
BR112018071758A2 BR112018071758-4A BR112018071758A BR112018071758A2 BR 112018071758 A2 BR112018071758 A2 BR 112018071758A2 BR 112018071758 A BR112018071758 A BR 112018071758A BR 112018071758 A2 BR112018071758 A2 BR 112018071758A2
Authority
BR
Brazil
Prior art keywords
iron
cast iron
dri
carbon
electric arc
Prior art date
Application number
BR112018071758-4A
Other languages
English (en)
Other versions
BR112018071758B1 (pt
Inventor
Memoli Francesco
Giavani Cesare
Maria Reali Silvio
James SHOOP Kyle
Original Assignee
Tenova S.P.A.
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=57045318&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR112018071758(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Tenova S.P.A. filed Critical Tenova S.P.A.
Publication of BR112018071758A2 publication Critical patent/BR112018071758A2/pt
Publication of BR112018071758B1 publication Critical patent/BR112018071758B1/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C21B11/10—Making pig-iron other than in blast furnaces 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
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • C21B13/143—Injection of partially reduced ore into a molten bath
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0086—Conditioning, transformation of reduced iron ores
    • 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
    • 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/08—Manufacture of cast-iron
    • 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
    • C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0264—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements the maximum content of each alloying element not exceeding 5%
    • C22C33/0271—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements the maximum content of each alloying element not exceeding 5% with only C, Mn, Si, P, S, As as alloying elements, e.g. carbon steel
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/08—Making cast-iron alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C37/00—Cast-iron alloys
    • 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
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)

Abstract

um método para a produção de ferro fundido a partir de minério de ferro pré-reduzido dri por meio de um forno a arco elétrico eaf, compreendendo as seguintes etapas: a. preparar uma carga de minério de ferro dri pré-reduzido com uma metalização maior que 90% e contendo mais de 2,8% em peso de carbono, em que pelo menos 80% do referido carbono é combinado com o ferro para formar o carboneto de ferro fe3c, b. carregar a carga de minério de ferro dri pré-reduzido no forno elétrico a arco eaf, c. fundir a carga de dri para formar ferro fundido líquido, em que o referido ferro fundido líquido tem um teor real predeterminado de carbono, pelo menos 80% em peso do referido teor de carbono real do ferro fundido derivado do carbono na carga de minério de ferro pré-reduzido dri e em que a etapa c. é realizada em uma atmosfera redutora e em uma câmara de fusão do forno a arco elétrico eaf submetido a uma pressão interna positiva gerada por gases produzidos por reações de redução que se desenvolvem na etapa c.
BR112018071758-4A 2016-05-31 2017-05-29 Método para produção de ferro fundido a partir de minério de ferro pré-reduzido dri por meio de um forno a arco elétrico eaf BR112018071758B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT102016000056295 2016-05-31
ITUA2016A003986A ITUA20163986A1 (it) 2016-05-31 2016-05-31 Metodo ed apparato per la produzione di ghisa, ghisa prodotta secondo detto metodo
PCT/EP2017/062860 WO2017207472A1 (en) 2016-05-31 2017-05-29 Method and apparatus for the production of cast iron, cast iron produced according to said method

Publications (2)

Publication Number Publication Date
BR112018071758A2 true BR112018071758A2 (pt) 2019-02-19
BR112018071758B1 BR112018071758B1 (pt) 2022-07-19

Family

ID=57045318

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112018071758-4A BR112018071758B1 (pt) 2016-05-31 2017-05-29 Método para produção de ferro fundido a partir de minério de ferro pré-reduzido dri por meio de um forno a arco elétrico eaf

Country Status (11)

Country Link
US (2) US10995379B2 (pt)
EP (1) EP3464653B1 (pt)
CN (1) CN109642261A (pt)
BR (1) BR112018071758B1 (pt)
CA (1) CA3022024C (pt)
ES (1) ES2908128T3 (pt)
IT (1) ITUA20163986A1 (pt)
MX (1) MX2018014134A (pt)
PL (1) PL3464653T3 (pt)
RU (1) RU2734853C2 (pt)
WO (1) WO2017207472A1 (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUA20163986A1 (it) * 2016-05-31 2017-12-01 Tenova Spa Metodo ed apparato per la produzione di ghisa, ghisa prodotta secondo detto metodo
US11788159B2 (en) 2020-03-24 2023-10-17 Midrex Technologies, Inc. Integration of DR plant and electric DRI melting furnace for producing high performance iron
CN111541505B (zh) * 2020-04-03 2021-04-27 武汉大学 一种面向ofdm无线通信系统的时域信道预测方法及系统
DE102020205493A1 (de) 2020-04-30 2021-11-04 Sms Group Gmbh Verfahren zum Herstellen von flüssigem Roheisen aus einem DRI-Produkt
PE20240720A1 (es) * 2021-07-06 2024-04-15 Metso Metals Oy Un metodo de procesamiento de mineral de hierro para obtener acero
WO2024023563A1 (en) * 2022-07-29 2024-02-01 Arcelormittal Method for manufacturing pig iron in a production line comprising an electrical smelting furnace
WO2024023561A1 (en) * 2022-07-29 2024-02-01 Arcelormittal A method of manufacturing molten pig iron into an electrical smelting furnace
WO2024023566A1 (en) * 2022-07-29 2024-02-01 Arcelormittal A method for manufacturing pig iron in a production line comprising an electrical smelting furnace
EP4327960A1 (de) 2022-08-24 2024-02-28 SMS Group GmbH Metallurgische anlage und verfahren zur herstellung einer schmelzflüssigen metallischen zusammensetzung
DE102022209958A1 (de) 2022-08-24 2024-02-29 Sms Group Gmbh Metallurgische Anlage und Verfahren zur Herstellung einer schmelzflüssigen metallischen Zusammensetzung

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GB2040986B (en) * 1977-06-29 1982-08-25 Procter & Gamble Liquid detergent composition for improved greasy soil removal
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SU1678846A1 (ru) * 1989-12-26 1991-09-23 Всесоюзный научно-исследовательский институт литейного машиностроения, литейной технологии и автоматизации литейного производства Способ получени чугуна в дуговых электрических печах
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ITUA20163986A1 (it) * 2016-05-31 2017-12-01 Tenova Spa Metodo ed apparato per la produzione di ghisa, ghisa prodotta secondo detto metodo

Also Published As

Publication number Publication date
PL3464653T3 (pl) 2022-02-28
ITUA20163986A1 (it) 2017-12-01
RU2734853C2 (ru) 2020-10-23
BR112018071758B1 (pt) 2022-07-19
MX2018014134A (es) 2019-02-25
ES2908128T3 (es) 2022-04-27
EP3464653A1 (en) 2019-04-10
CN109642261A (zh) 2019-04-16
EP3464653B1 (en) 2021-12-15
US10995379B2 (en) 2021-05-04
RU2018141749A (ru) 2020-05-27
US11421289B2 (en) 2022-08-23
RU2018141749A3 (pt) 2020-06-29
CA3022024A1 (en) 2017-12-07
WO2017207472A1 (en) 2017-12-07
US20180274047A1 (en) 2018-09-27
CA3022024C (en) 2023-03-28
US20210214812A1 (en) 2021-07-15

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B06W Patent application suspended after preliminary examination (for patents with searches from other patent authorities) chapter 6.23 patent gazette]
B350 Update of information on the portal [chapter 15.35 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

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