GB1077787A - Process for producing carbonaceous iron - Google Patents

Process for producing carbonaceous iron

Info

Publication number
GB1077787A
GB1077787A GB432665A GB432665A GB1077787A GB 1077787 A GB1077787 A GB 1077787A GB 432665 A GB432665 A GB 432665A GB 432665 A GB432665 A GB 432665A GB 1077787 A GB1077787 A GB 1077787A
Authority
GB
United Kingdom
Prior art keywords
furnace
fe3o4
conveyer
hopper
concentrate
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
GB432665A
Inventor
Erik Anders Ake Josefsson
Erik Axel Bengfsson
Kurt Karl Axel Alinqvist
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.)
Stora Enso Oyj
Original Assignee
Stora Kopparbergs Bergslags AB
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 Stora Kopparbergs Bergslags AB filed Critical Stora Kopparbergs Bergslags AB
Priority to BE670219D priority Critical patent/BE670219A/fr
Publication of GB1077787A publication Critical patent/GB1077787A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B13/00Making spongy iron or liquid steel, by direct processes
    • C21B13/14Multi-stage processes processes carried out in different vessels or furnaces
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B11/00Making pig-iron other than in blast furnaces
    • C21B11/06Making pig-iron other than in blast furnaces in rotary kilns
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B13/00Making spongy iron or liquid steel, by direct processes
    • C21B13/08Making spongy iron or liquid steel, by direct processes in rotary furnaces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00Rotary-drum furnaces, i.e. horizontal or slightly inclined

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)

Abstract

<PICT:1077787/C6-C7/1> Pig iron is produced in a rotary furnace 1, rotating at 10-40 revs/min., by introducing a preheated and prereduced iron ore or concentrate with a solid carbonaceous reducing material such as coal or coke into the furnace, e.g. from a hopper 7 feeding a conveyer 14 in a casing 2, supplying oxygen or an oxygen-rich gas via at least one lance 5 above the bath surface to give a controlled oxidation to most of the CO formed by the final reduction to CO2 above the reducing layer obtained on the liquid bath surface so that the bath temperature is maintained at 1200-1450 DEG C., passing the exhaust gas formed e.g. through the casing 2 to a pretreatment furnace e.g. drum 3 to preheat ore or concentrate having a higher O content than Fe3O4, e.g. fed in by conveyer 6 and hopper 10, to 600-900 DEG C. and prereduce it to Fe3O4. Gaseous or liquid particularly hydrocarbon fuel may be additionally fed into the furnace 1.
GB432665A 1964-02-01 1965-02-01 Process for producing carbonaceous iron Expired GB1077787A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE670219D BE670219A (en) 1964-09-28 1965-09-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE127964 1964-02-01

Publications (1)

Publication Number Publication Date
GB1077787A true GB1077787A (en) 1967-08-02

Family

ID=20257918

Family Applications (1)

Application Number Title Priority Date Filing Date
GB432665A Expired GB1077787A (en) 1964-02-01 1965-02-01 Process for producing carbonaceous iron

Country Status (4)

Country Link
BE (1) BE658908A (en)
ES (1) ES308668A1 (en)
GB (1) GB1077787A (en)
LU (1) LU47889A1 (en)

Also Published As

Publication number Publication date
BE658908A (en) 1965-05-17
ES308668A1 (en) 1965-07-01
LU47889A1 (en) 1965-04-01

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