JPS5677305A - Blast furnace operation method - Google Patents

Blast furnace operation method

Info

Publication number
JPS5677305A
JPS5677305A JP15594579A JP15594579A JPS5677305A JP S5677305 A JPS5677305 A JP S5677305A JP 15594579 A JP15594579 A JP 15594579A JP 15594579 A JP15594579 A JP 15594579A JP S5677305 A JPS5677305 A JP S5677305A
Authority
JP
Japan
Prior art keywords
coke
blast furnace
quality
influence coefficients
fuel ratio
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
JP15594579A
Other languages
Japanese (ja)
Inventor
Yuji Iwanaga
Tomio Miyazaki
Teruhisa Shimoda
Michiharu Hatano
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
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP15594579A priority Critical patent/JPS5677305A/en
Publication of JPS5677305A publication Critical patent/JPS5677305A/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
    • C21B5/007—Conditions of the cokes or characterised by the cokes used

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 coke economically and stabilize blast furnace by obtaining the influence coefficients that affect blast furnace operations such as permeability, fuel ratio, etc. of coke quality by using mathematical model of a blast furnace and using coke based on these influence coefficients. CONSTITUTION:The air permeation resistance, fuel ratio, etc. of coke are calculated by the mathematical model of a blast furnace which assumes that the blast furnace inside is in a steady state and its section is uniform. The correlations between said permeation resistance, fuel ratio, etc. and the quality of coke are obtained and the change amounts in permeation resistance, fuel, ratio, etc. when he quanity of coke fluctuates by unit amount are obtained as influence coefficients by using the thus obtained correlations. The sum total of the degree of influence of the quality of coke upon a blast furnace is calculated by using these influence coefficients and the coke of the quality conforming to the fluctuations in the furnace conditions is charged into the blast furnace based on this value.
JP15594579A 1979-11-30 1979-11-30 Blast furnace operation method Pending JPS5677305A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15594579A JPS5677305A (en) 1979-11-30 1979-11-30 Blast furnace operation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15594579A JPS5677305A (en) 1979-11-30 1979-11-30 Blast furnace operation method

Publications (1)

Publication Number Publication Date
JPS5677305A true JPS5677305A (en) 1981-06-25

Family

ID=15616949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15594579A Pending JPS5677305A (en) 1979-11-30 1979-11-30 Blast furnace operation method

Country Status (1)

Country Link
JP (1) JPS5677305A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015120965A (en) * 2013-12-24 2015-07-02 新日鐵住金株式会社 Method of operating blast furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015120965A (en) * 2013-12-24 2015-07-02 新日鐵住金株式会社 Method of operating blast furnace

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