JPS6447802A - Blast furnace operating method - Google Patents

Blast furnace operating method

Info

Publication number
JPS6447802A
JPS6447802A JP20535587A JP20535587A JPS6447802A JP S6447802 A JPS6447802 A JP S6447802A JP 20535587 A JP20535587 A JP 20535587A JP 20535587 A JP20535587 A JP 20535587A JP S6447802 A JPS6447802 A JP S6447802A
Authority
JP
Japan
Prior art keywords
blast furnace
charged
high reactive
furnace
coke
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
JP20535587A
Other languages
Japanese (ja)
Inventor
Kazuyoshi Inokuchi
Kazuyoshi Yamaguchi
Masaaki Naito
Yoshiaki Nomiya
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.)
Nippon Steel Corp
Original Assignee
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP20535587A priority Critical patent/JPS6447802A/en
Publication of JPS6447802A publication Critical patent/JPS6447802A/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 execute blast furnace operation having excellent productivity and economical condition by mixing the specific grain size of fine granular sintered ore with high reactive coke having more than the specific value of JIS reactivity at the specific ratio and charging his in the furnace wall side of the blast furnace. CONSTITUTION:The high reactive coke having >=30% JIS reactivity is mixed with the fine granular sintered ore having <=15mm max. grain size and quantity of the fine granular sintered ore is regulated so as to come to <=50% of the total charged ore quantity. This mixing material M is charged in the furnace wall 2 side of the blast furnace 1, in which the iron ore O and the coke C are alternately charged as laminate. The charged mixing material M is descended in the furnace as processing the blast furnace operation to form fused zone S and the high reactive coke comes to descendent flow CM descending near the furnace wall and reaches to race-way and burns. Therefore, merit of the high reactive coke can be effectively used without hindering any gas and liquid permeabilities.
JP20535587A 1987-08-18 1987-08-18 Blast furnace operating method Pending JPS6447802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20535587A JPS6447802A (en) 1987-08-18 1987-08-18 Blast furnace operating method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20535587A JPS6447802A (en) 1987-08-18 1987-08-18 Blast furnace operating method

Publications (1)

Publication Number Publication Date
JPS6447802A true JPS6447802A (en) 1989-02-22

Family

ID=16505494

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20535587A Pending JPS6447802A (en) 1987-08-18 1987-08-18 Blast furnace operating method

Country Status (1)

Country Link
JP (1) JPS6447802A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015074799A (en) * 2013-10-08 2015-04-20 新日鐵住金株式会社 Blast furnace operation method
JP2015074801A (en) * 2013-10-08 2015-04-20 新日鐵住金株式会社 Blast furnace operation method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015074799A (en) * 2013-10-08 2015-04-20 新日鐵住金株式会社 Blast furnace operation method
JP2015074801A (en) * 2013-10-08 2015-04-20 新日鐵住金株式会社 Blast furnace operation method

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