JPS648207A - Operation of blast furnace - Google Patents

Operation of blast furnace

Info

Publication number
JPS648207A
JPS648207A JP16372987A JP16372987A JPS648207A JP S648207 A JPS648207 A JP S648207A JP 16372987 A JP16372987 A JP 16372987A JP 16372987 A JP16372987 A JP 16372987A JP S648207 A JPS648207 A JP S648207A
Authority
JP
Japan
Prior art keywords
layer
charging
permeability
blast furnace
charged
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.)
Pending
Application number
JP16372987A
Other languages
Japanese (ja)
Inventor
Emi Murakawa
Seiji Taguchi
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 JP16372987A priority Critical patent/JPS648207A/en
Publication of JPS648207A publication Critical patent/JPS648207A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/008—Composition or distribution of the charge

Landscapes

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

Abstract

PURPOSE:To use a large quantity of fine particle raw material while keeping good furnace condition by holding permeability of charging material layer at charged position below the permeability starting fluidization at the time of charging small particle charging material layer into a blast furnace. CONSTITUTION:Ore to be charged into the blast furnace is divided into two layers of (01) layer and (02) layer and to the (02) layer, fine particle raw material (about 3-8mm) is mixed to make small particle charging layer and this is charged near the furnace wall in executing the blast furnace operation. Then, the permeability at the (01) layer part before charging the (02) layer is measured, and the (02) layer is charged while adjusting charging condition and blast condition so that the permeability at the position is held below the permeability starting fluidization. By this method, the blast furnace operation is stabilized using fine particle raw material without causing aggravation of the furnace condition, and the cost is reduced.
JP16372987A 1987-06-30 1987-06-30 Operation of blast furnace Pending JPS648207A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16372987A JPS648207A (en) 1987-06-30 1987-06-30 Operation of blast furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16372987A JPS648207A (en) 1987-06-30 1987-06-30 Operation of blast furnace

Publications (1)

Publication Number Publication Date
JPS648207A true JPS648207A (en) 1989-01-12

Family

ID=15779555

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16372987A Pending JPS648207A (en) 1987-06-30 1987-06-30 Operation of blast furnace

Country Status (1)

Country Link
JP (1) JPS648207A (en)

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