JPS6465213A - Method for charging raw material to axial center part of blast furnace - Google Patents

Method for charging raw material to axial center part of blast furnace

Info

Publication number
JPS6465213A
JPS6465213A JP22099287A JP22099287A JPS6465213A JP S6465213 A JPS6465213 A JP S6465213A JP 22099287 A JP22099287 A JP 22099287A JP 22099287 A JP22099287 A JP 22099287A JP S6465213 A JPS6465213 A JP S6465213A
Authority
JP
Japan
Prior art keywords
raw materials
gas
blast furnace
furnace
flow
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
JP22099287A
Other languages
Japanese (ja)
Other versions
JPH0541681B2 (en
Inventor
Yoshio Kimura
Shoken Shimizu
Shinichi Inaba
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP22099287A priority Critical patent/JPS6465213A/en
Publication of JPS6465213A publication Critical patent/JPS6465213A/en
Publication of JPH0541681B2 publication Critical patent/JPH0541681B2/ja
Granted 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 enhance the efficiency and stability of a blast furnace operation by specifying the ratio of the velocity of flow of the gas for initiating the fluidization of charge raw materials and the average velocity of flow of the gas in the furnace top part at the time of charging the prescribed raw materials to the prescribed region in the axial central part of the blast furnace. CONSTITUTION:The velocity of flow of the gas for initiating the fluidization of the raw materials M, designated as Umf, and the average velocity of flow of the furnace top gas, designated as Ut, are controlled to 0.30<=Ut/Umf<=0.52 at the time of charging the raw materials M (coke) to the prescribed region in the axial central part of the blast furnace and charging the other raw materials Ma (ore) to the periphery thereof. The deposition width S of the raw materials M is thereby reduced to a narrow region, by which the central fluidization of the rising gas in the furnace is accelerated and the furnace condi tion is additionally stabilized.
JP22099287A 1987-09-03 1987-09-03 Method for charging raw material to axial center part of blast furnace Granted JPS6465213A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22099287A JPS6465213A (en) 1987-09-03 1987-09-03 Method for charging raw material to axial center part of blast furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22099287A JPS6465213A (en) 1987-09-03 1987-09-03 Method for charging raw material to axial center part of blast furnace

Publications (2)

Publication Number Publication Date
JPS6465213A true JPS6465213A (en) 1989-03-10
JPH0541681B2 JPH0541681B2 (en) 1993-06-24

Family

ID=16759772

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22099287A Granted JPS6465213A (en) 1987-09-03 1987-09-03 Method for charging raw material to axial center part of blast furnace

Country Status (1)

Country Link
JP (1) JPS6465213A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55104407A (en) * 1979-02-05 1980-08-09 Kobe Steel Ltd Blast furnace operating method
JPS6056003A (en) * 1983-09-02 1985-04-01 Kobe Steel Ltd Method for charging coke into blast furnace

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55104407A (en) * 1979-02-05 1980-08-09 Kobe Steel Ltd Blast furnace operating method
JPS6056003A (en) * 1983-09-02 1985-04-01 Kobe Steel Ltd Method for charging coke into blast furnace

Also Published As

Publication number Publication date
JPH0541681B2 (en) 1993-06-24

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