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ATE358T1 - METHOD AND PLANT FOR REDUCING ORES. - Google Patents

METHOD AND PLANT FOR REDUCING ORES.

Info

Publication number
ATE358T1
ATE358T1 AT79104952T AT79104952T ATE358T1 AT E358 T1 ATE358 T1 AT E358T1 AT 79104952 T AT79104952 T AT 79104952T AT 79104952 T AT79104952 T AT 79104952T AT E358 T1 ATE358 T1 AT E358T1
Authority
AT
Austria
Prior art keywords
preheater
ores
drying
supplied
plant
Prior art date
Application number
AT79104952T
Other languages
German (de)
Inventor
Heinz-Emil Merz
Juergen Klonus
Original Assignee
Krupp Polysius 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 Krupp Polysius Ag filed Critical Krupp Polysius Ag
Application granted granted Critical
Publication of ATE358T1 publication Critical patent/ATE358T1/en

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
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
    • 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
    • F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges
    • 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)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Saccharide Compounds (AREA)

Abstract

1. Method of reducing ores using a drying and/or comminuting apparatus, a suspension gas preheater for the preheating, calcination and prereduction of the ores, furthermore a complete reduction furnace and an agglomeration means, reducing agents being introduced into a furnace exhaust gas conduit leading to the preheater, characterised in that the prereduced ores after leaving the suspension gas preheater are hot briqueted and thereafter completely reduced in an electric furnace, at least a protion of the electric furnace exhaust gases being supplied to the suspension gas preheater and the preheater exhaust gases being supplied to the drying and/or comminuting apparatus.
AT79104952T 1978-12-07 1979-12-05 METHOD AND PLANT FOR REDUCING ORES. ATE358T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782852964 DE2852964A1 (en) 1978-12-07 1978-12-07 METHOD AND SYSTEM FOR REDUCING ORES
EP79104952A EP0012363B1 (en) 1978-12-07 1979-12-05 Method of and means for reducing ores

Publications (1)

Publication Number Publication Date
ATE358T1 true ATE358T1 (en) 1981-11-15

Family

ID=6056587

Family Applications (1)

Application Number Title Priority Date Filing Date
AT79104952T ATE358T1 (en) 1978-12-07 1979-12-05 METHOD AND PLANT FOR REDUCING ORES.

Country Status (4)

Country Link
EP (1) EP0012363B1 (en)
AT (1) ATE358T1 (en)
BR (1) BR7907953A (en)
DE (2) DE2852964A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3132766A1 (en) * 1980-09-12 1982-06-16 ARBED S.A., 2930 Luxembourg "METHOD FOR THE CONTINUOUS REDUCTION OF IRONIC SUBSTANCES"
DE3529084C1 (en) * 1985-08-14 1986-10-16 Thyssen Stahl AG, 4100 Duisburg Process and plant for the production of binderless hot briquettes
DE3711130C1 (en) * 1987-04-02 1988-07-21 Thyssen Stahl Ag Process and plant for the production of binderless hot briquettes
DE3835332A1 (en) * 1988-10-17 1990-04-19 Ralph Weber METHOD FOR PRODUCING STEEL FROM FINE ORE
ATE144798T1 (en) * 1988-12-20 1996-11-15 Cra Services PRODUCTION OF IRON AND STEEL IN A DUPLEX MELTING PLANT AND PLANT FOR THE PRE-REDUCTION OF OXIDE SOLID BODY IN FLOATING
AT404735B (en) * 1992-10-22 1999-02-25 Voest Alpine Ind Anlagen METHOD AND INSTALLATION FOR THE PRODUCTION OF LIQUID PIPE IRON OR LIQUID STEEL PRE-PRODUCTS
AT404598B (en) 1997-04-16 1998-12-28 Voest Alpine Ind Anlagen METHOD AND INSTALLATION FOR THE PRODUCTION OF LIQUID PIG IRON OR LIQUID STEEL PRE-PRODUCTS
DE19960575A1 (en) * 1999-12-15 2001-06-21 Krupp Polysius Ag Process and plant for reducing fine ores
AT408991B (en) * 2000-04-28 2002-04-25 Voest Alpine Ind Anlagen METHOD AND SYSTEM FOR PRODUCING A METAL MELT

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1160462B (en) * 1957-11-04 1964-01-02 Yukio Nogiwa Process and device for the reduction of finely comminuted oxide iron ores
DE2133860A1 (en) * 1970-07-07 1972-01-13 Barker, Arnold Verdun, Palm Beach, New South Wales (Australien) Direct reduction of iron ore - using cyclone furnace and electric arc or induction furnace
DE2132150B2 (en) * 1971-06-29 1980-07-24 Wasmuht, Jobst-Thomas, Dr.-Ing., 4600 Dortmund Process for the direct manufacture of steel
IT1009463B (en) * 1974-04-16 1976-12-10 Ceretti Ind Spa PROCEDURE FOR PREHEATING AND CONTINUOUS FUSION OF PRE-REDUCED FERROUS MINERALS
DE2428715C3 (en) * 1974-06-14 1982-09-02 Krupp Polysius Ag, 4720 Beckum Process and plant for the reduction and agglomeration of fine-grain ore
ZA762594B (en) * 1975-06-05 1977-04-27 Midrex Corp Method and apparatus for continuous passivation of sponge iron material
DE2601196C3 (en) * 1976-01-14 1980-10-16 Krupp Polysius Ag, 4720 Beckum Process and plant for the reduction and subsequent pelletizing of fine-grain ore
FR2338994A1 (en) * 1976-01-20 1977-08-19 Renault STEEL PROCESSING PROCESS FROM PRE-REDUCED ORES
IT1066135B (en) * 1976-08-04 1985-03-04 Centro Speriment Metallurg PROCESS FOR THE PRODUCTION OF CARBURATED IRON SPONGE BRIQUETTES
DE2655813B2 (en) * 1976-12-09 1980-10-23 Kloeckner-Humboldt-Deutz Ag, 5000 Koeln Process and plant for the direct and continuous extraction of iron

Also Published As

Publication number Publication date
BR7907953A (en) 1980-07-22
EP0012363A1 (en) 1980-06-25
DE2852964A1 (en) 1980-06-26
DE2961278D1 (en) 1982-01-14
EP0012363B1 (en) 1981-11-04

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee