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JPS57188607A - Fluidized-bed reducing method for iron ore for manufacturing reduced iron and fuel gas simultaneously - Google Patents

Fluidized-bed reducing method for iron ore for manufacturing reduced iron and fuel gas simultaneously

Info

Publication number
JPS57188607A
JPS57188607A JP7132381A JP7132381A JPS57188607A JP S57188607 A JPS57188607 A JP S57188607A JP 7132381 A JP7132381 A JP 7132381A JP 7132381 A JP7132381 A JP 7132381A JP S57188607 A JPS57188607 A JP S57188607A
Authority
JP
Japan
Prior art keywords
supplied
reaction tower
fuel gas
supply opening
reducing
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.)
Granted
Application number
JP7132381A
Other languages
Japanese (ja)
Other versions
JPS5919965B2 (en
Inventor
Toshihiro Inatani
Hisao Hamada
Hisamitsu Koitabashi
Kyoji Okabe
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP7132381A priority Critical patent/JPS5919965B2/en
Publication of JPS57188607A publication Critical patent/JPS57188607A/en
Publication of JPS5919965B2 publication Critical patent/JPS5919965B2/en
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
    • C21B13/0033—In fluidised bed furnaces or apparatus containing a dispersion of the material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)

Abstract

PURPOSE:To control the produced amounts of reduced iron and fuel gas optionally and respectively by regulating the amounts of coke supplied to a reducing reaction tower and a combustion reaction tower respectively. CONSTITUTION:A reducing reaction tower 1 is supplied with iron ore from a supply opening 3, coke from a supply opening 4, and reducing gas from a supply opening 5, and a combustion reaction tower 2 is supplied with a carbon material such as coke from a supply opening 7 and oxygen and steam upon occasion from a supply opening 6 to burn the carbonaceous material, thereby producing particles of a fluid heat medium made of the carbonaceous material. Those particles are circulated in communicating pipes 9 and 10 and returned to both the reaction towers 1 and 2, and the fluidized- bed reduction of the iron ore is performed in the reducing reaction tower 1. At this time, gases produced in both the reaction towers 1 and 2 are led out together from a discharge opening 13, and part of the gaseous mixture is increased pressure by a gaseous pressure boosting machine 16 and then supplied as reducing gas to the reducing reaction tower 1. The remaining gas is led out of the system as fuel gas. The amount of this fuel gas and that of reduced iron discharged through the discharge opening 8 of the tower 1 are controlled by regulating the amounts of coke supplied to both towers 1 and 2.
JP7132381A 1981-05-14 1981-05-14 Fluid reduction method for iron ore that simultaneously produces reduced iron and fuel gas Expired JPS5919965B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7132381A JPS5919965B2 (en) 1981-05-14 1981-05-14 Fluid reduction method for iron ore that simultaneously produces reduced iron and fuel gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7132381A JPS5919965B2 (en) 1981-05-14 1981-05-14 Fluid reduction method for iron ore that simultaneously produces reduced iron and fuel gas

Publications (2)

Publication Number Publication Date
JPS57188607A true JPS57188607A (en) 1982-11-19
JPS5919965B2 JPS5919965B2 (en) 1984-05-10

Family

ID=13457237

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7132381A Expired JPS5919965B2 (en) 1981-05-14 1981-05-14 Fluid reduction method for iron ore that simultaneously produces reduced iron and fuel gas

Country Status (1)

Country Link
JP (1) JPS5919965B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0585190A1 (en) * 1992-08-25 1994-03-02 Sollac S.A. Apparatus for the reduction of iron ores in a circulating fluidized bed
WO2009007007A1 (en) 2007-07-10 2009-01-15 Outotec Oyj Process and plant for reducing solids containing iron oxide

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0585190A1 (en) * 1992-08-25 1994-03-02 Sollac S.A. Apparatus for the reduction of iron ores in a circulating fluidized bed
FR2695141A1 (en) * 1992-08-25 1994-03-04 Lorraine Laminage Iron ore reduction plant using a circulating fluidized bed.
WO2009007007A1 (en) 2007-07-10 2009-01-15 Outotec Oyj Process and plant for reducing solids containing iron oxide
EA016472B1 (en) * 2007-07-10 2012-05-30 Оутотек Ойй Process and plant for reducing solids containing iron oxide

Also Published As

Publication number Publication date
JPS5919965B2 (en) 1984-05-10

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