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ES484859A1 - Procedimiento y dispositivo para la fabricacion de acero a partir de polvo mineral de hierro, mediante reduccion direc-ta - Google Patents

Procedimiento y dispositivo para la fabricacion de acero a partir de polvo mineral de hierro, mediante reduccion direc-ta

Info

Publication number
ES484859A1
ES484859A1 ES484859A ES484859A ES484859A1 ES 484859 A1 ES484859 A1 ES 484859A1 ES 484859 A ES484859 A ES 484859A ES 484859 A ES484859 A ES 484859A ES 484859 A1 ES484859 A1 ES 484859A1
Authority
ES
Spain
Prior art keywords
iron ore
vessel
direct reduction
ore powder
producing steel
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
Application number
ES484859A
Other languages
English (en)
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.)
Mannesmann Demag AG
Original Assignee
Mannesmann 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 Mannesmann Demag AG filed Critical Mannesmann Demag AG
Publication of ES484859A1 publication Critical patent/ES484859A1/es
Expired legal-status Critical Current

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
    • C21B13/12—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
    • C21B13/0073—Selection or treatment of the reducing gases
    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/28—Increasing the gas reduction potential of recycled exhaust gases by separation
    • C21B2100/282—Increasing the gas reduction potential of recycled exhaust gases by separation of carbon dioxide
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/66—Heat exchange
    • 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
    • Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

Procedimiento para la fabricación de acero a partir de polvo de mineral de hierro mediante reducción directa, en donde el polvo de mineral de hierro es previamente calentado, a continuación es reducido con una mezcla gaseosa que contiene monóxido de carbona y el producto de reducción es incorporado con un medio de vehículo gaseoso en una masa fundido de hierro, por debajo de su superficie del baño, caracterizado porque el polvo de hierro es introducido en isocorriente en un gas reductor previamente calentado a alrededor de 400 hasta 800°, que contiene predominantemente H2, y que al mismo tiempo sirve como medio de vehículo, e inmediatamente después de la introducción es transportado a través de una cuba de reducción que se extiende hasta cerca del fondo de una instalación de fusión, cuyo interior ha sido calentado a 1000 hasta 1400°C, después de lo cual el hierro metálico reducido espontáneamente a partir del polvo de mineral de hierro, siguiendo a la corriente de gas de vehículo y a la caída libre, es convertido al estado fundido en la masa fundida de hierro existente en el recipiente de fusión.
ES484859A 1978-10-10 1979-10-09 Procedimiento y dispositivo para la fabricacion de acero a partir de polvo mineral de hierro, mediante reduccion direc-ta Expired ES484859A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2844056A DE2844056C3 (de) 1978-10-10 1978-10-10 Verfahren und Vorrichtung zur Herstellung von Stahl aus Eisenerzstaub durch direkte Reduktion

Publications (1)

Publication Number Publication Date
ES484859A1 true ES484859A1 (es) 1980-06-16

Family

ID=6051825

Family Applications (1)

Application Number Title Priority Date Filing Date
ES484859A Expired ES484859A1 (es) 1978-10-10 1979-10-09 Procedimiento y dispositivo para la fabricacion de acero a partir de polvo mineral de hierro, mediante reduccion direc-ta

Country Status (7)

Country Link
US (1) US4324390A (es)
EP (1) EP0010647B1 (es)
AU (1) AU533686B2 (es)
CA (1) CA1131915A (es)
DE (1) DE2844056C3 (es)
ES (1) ES484859A1 (es)
NZ (1) NZ191809A (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT402939B (de) * 1992-07-16 1997-09-25 Voest Alpine Ind Anlagen Verfahren und anlage zum herstellen einer metallschmelze
AT410324B (de) * 2001-07-13 2003-03-25 Voest Alpine Industrianlagenba Verfahren und anlage zur metallerzeugung, vorzugsweise zur stahlerzeugung, aus feinkörnigem metalloxid
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
SE545421C2 (en) * 2021-12-23 2023-09-05 Luossavaara Kiirunavaara Ab Reduction of iron ore material
DE102023102571A1 (de) 2023-02-02 2024-08-08 Thyssenkrupp Steel Europe Ag Verfahren zur Direktreduktion von Eisenerzträgern in einem Schachtofen und Schachtofen zur Direktreduktion

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1459187A (en) * 1920-11-02 1923-06-19 Pratt Emil Bruce Process of reducing metallic oxides
US1662302A (en) * 1925-02-26 1928-03-13 Croese Dirk Manufacture of steel and alloys from ironsand
DE442776C (de) * 1925-07-22 1927-04-06 Konrad Strauss Dipl Ing Verfahren zur unmittelbaren Erzeugung von Roheisen und Stahl
DE1048030B (de) * 1948-10-20 1958-12-31 Boehler & Co Ag Geb Verfahren zur Herstellung von Metallen oder Metallegierungen aus feinkoernigen, Metall enthaltenden Stoffen
US2782022A (en) * 1953-04-17 1957-02-19 Strohmeier Gerolf Apparatus for preparing metals and alloys from substances, containing fine-grain metal
US2951756A (en) * 1958-05-16 1960-09-06 Cavanagh Patrick Edgar Method for jet smelting
US3140168A (en) * 1961-05-31 1964-07-07 Inland Steel Co Reduction of iron ore with hydrogen
US3862834A (en) * 1971-04-03 1975-01-28 Krupp Gmbh Method for producing steel
DE2116445C3 (de) * 1971-04-03 1973-09-13 Fried. Krupp Gmbh, 4300 Essen Verfahren zur Erzeugung von Stahl
US3963483A (en) * 1972-03-10 1976-06-15 Koppers Company, Inc. Direct reduction steelmaking process
DE2401909C3 (de) * 1974-01-16 1985-06-27 Fried. Krupp Gmbh, 4300 Essen Verfahren zur Herstellung von Stahl
US3997333A (en) * 1975-02-26 1976-12-14 Westinghouse Electric Corporation Process for the reduction of complex metallic ores

Also Published As

Publication number Publication date
DE2844056B2 (de) 1980-10-30
DE2844056C3 (de) 1981-08-13
US4324390A (en) 1982-04-13
EP0010647A1 (de) 1980-05-14
AU533686B2 (en) 1983-12-08
DE2844056A1 (de) 1980-04-17
NZ191809A (en) 1981-07-13
AU5154379A (en) 1980-04-17
CA1131915A (en) 1982-09-21
EP0010647B1 (de) 1981-11-04

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