JPS5658905A - Blast furnace operating method - Google Patents

Blast furnace operating method

Info

Publication number
JPS5658905A
JPS5658905A JP13545379A JP13545379A JPS5658905A JP S5658905 A JPS5658905 A JP S5658905A JP 13545379 A JP13545379 A JP 13545379A JP 13545379 A JP13545379 A JP 13545379A JP S5658905 A JPS5658905 A JP S5658905A
Authority
JP
Japan
Prior art keywords
sulfur
molten iron
slag
blast furnace
compounding
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
JP13545379A
Other languages
Japanese (ja)
Inventor
Michiharu Hatano
Chisato Yamagata
Sadakazu Matsuoka
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 JP13545379A priority Critical patent/JPS5658905A/en
Publication of JPS5658905A publication Critical patent/JPS5658905A/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 economically decrease the amount of sulfur in molten iron by estimating the sulfur in the molten iron by the use of the relational formula between the equilibrium hitting degree of the sulfur distribution reaction between slag and metal and slag viscosity, comparing the thus estimated value and actual values and changing the compounding of sintering ore materials. CONSTITUTION:Tuyere blast conditions, charges conditions (amount of charing, composition), molten iron components (C, Si, Mn), molten iron temperatures are inputted to the relational formula between the equilibrium hitting degree of the sulfur distribution reaction between slag and metal and slag viscosity obtained through analysis of actual blast furnace data, whereby the amount of sulfur in molten iron is estimated. The thus estimated value and actual values are compared and the compounding of sintering ore materials is changed. Then, the effect of the compounding changing is beforehand quantitatively forecast, and the economical sulfur reduction in the blast furnace becomes possible.
JP13545379A 1979-10-20 1979-10-20 Blast furnace operating method Pending JPS5658905A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13545379A JPS5658905A (en) 1979-10-20 1979-10-20 Blast furnace operating method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13545379A JPS5658905A (en) 1979-10-20 1979-10-20 Blast furnace operating method

Publications (1)

Publication Number Publication Date
JPS5658905A true JPS5658905A (en) 1981-05-22

Family

ID=15152058

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13545379A Pending JPS5658905A (en) 1979-10-20 1979-10-20 Blast furnace operating method

Country Status (1)

Country Link
JP (1) JPS5658905A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55152113A (en) * 1979-05-17 1980-11-27 Nippon Steel Corp Operating method of blast furnace

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55152113A (en) * 1979-05-17 1980-11-27 Nippon Steel Corp Operating method of blast furnace

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