JPS6465208A - Method for controlling furnace core solid reducing agent layer in blast furnace operation - Google Patents

Method for controlling furnace core solid reducing agent layer in blast furnace operation

Info

Publication number
JPS6465208A
JPS6465208A JP22098687A JP22098687A JPS6465208A JP S6465208 A JPS6465208 A JP S6465208A JP 22098687 A JP22098687 A JP 22098687A JP 22098687 A JP22098687 A JP 22098687A JP S6465208 A JPS6465208 A JP S6465208A
Authority
JP
Japan
Prior art keywords
coke
furnace
blast furnace
core
tracer
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
JP22098687A
Other languages
Japanese (ja)
Other versions
JPH0625366B2 (en
Inventor
Haruhisa Iwakiri
Tsunao Kamijo
Shoken Shimizu
Yoshio Kimura
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 JP22098687A priority Critical patent/JPH0625366B2/en
Publication of JPS6465208A publication Critical patent/JPS6465208A/en
Publication of JPH0625366B2 publication Critical patent/JPH0625366B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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 stabilize furnace waves by incorporating a tracer into charged coke in a blast furnace operation, thereby judging the updating time of the furnace core coke and adequately controlling the ratio and charging region of the good-quality coke to be charged in the core part of the blast furnace. CONSTITUTION:The good-quality coke CB which has excellent air permeability and liquid permeability and is incorporated therein with the tracer such as Zr is used and the updating time of the furnace core coke is decided by analyzing the tracer in order to improve the air and liquid permeability of the core coke C0 by improving the air permeability in the furnace core part at the time of operating the blast furnace by alternately charging ore O and ordinary coke CA to the blast furnace top. The charging rate of the axial center charge coke Ct and the radius rt of the charge region of the axial center charge coke with respect to the radius Rt of the charge raw material at the furnace top are controlled. The packing state of the core coke C0 in the furnace bottom is maintained adequate and the air permeability and the flowability of molten iron in the central part in the blast furnace are improved, by which the blast furnace waves are stabilized and the operating efficiency is improved.
JP22098687A 1987-09-03 1987-09-03 Control method of core reducing agent layer in blast furnace operation Expired - Lifetime JPH0625366B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22098687A JPH0625366B2 (en) 1987-09-03 1987-09-03 Control method of core reducing agent layer in blast furnace operation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22098687A JPH0625366B2 (en) 1987-09-03 1987-09-03 Control method of core reducing agent layer in blast furnace operation

Publications (2)

Publication Number Publication Date
JPS6465208A true JPS6465208A (en) 1989-03-10
JPH0625366B2 JPH0625366B2 (en) 1994-04-06

Family

ID=16759677

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22098687A Expired - Lifetime JPH0625366B2 (en) 1987-09-03 1987-09-03 Control method of core reducing agent layer in blast furnace operation

Country Status (1)

Country Link
JP (1) JPH0625366B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102912049A (en) * 2012-10-29 2013-02-06 首钢京唐钢铁联合有限责任公司 Method for canceling center coke charging of blast furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102912049A (en) * 2012-10-29 2013-02-06 首钢京唐钢铁联合有限责任公司 Method for canceling center coke charging of blast furnace

Also Published As

Publication number Publication date
JPH0625366B2 (en) 1994-04-06

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Legal Events

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