JPS56112411A - Blowing method of top-blown converter - Google Patents

Blowing method of top-blown converter

Info

Publication number
JPS56112411A
JPS56112411A JP1198080A JP1198080A JPS56112411A JP S56112411 A JPS56112411 A JP S56112411A JP 1198080 A JP1198080 A JP 1198080A JP 1198080 A JP1198080 A JP 1198080A JP S56112411 A JPS56112411 A JP S56112411A
Authority
JP
Japan
Prior art keywords
gas
blown
blowing
steel
blown converter
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
JP1198080A
Other languages
Japanese (ja)
Inventor
Kenji Saito
Tsutomu Nozaki
Kyoji Nakanishi
Toshihiko Emi
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.)
JFE Steel Corp
Original Assignee
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP1198080A priority Critical patent/JPS56112411A/en
Publication of JPS56112411A publication Critical patent/JPS56112411A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/35—Blowing from above and through the bath

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)

Abstract

PURPOSE:To decrease the amount of gas for blowing by blowing the specific volume of a CO2 gas or mixed gases of a CO2 gas and an inert gas. CONSTITUTION:A CO2 gas or mixed gases of a CO2 gas an an inert gas are blown at >=0.01Nm<3>/sec.t.steel through >= one single-pipe type gas blowing tuyeres buried in the bottom or the position below the molten metal level of a top-blown converter. The CO2 in contact with the molten steel reacts with the C in the steel and generates CO. By this reaction, 2X22.4m<3> CO is produced from 1kg mole 22.4m<3> CO2, and since the volume of the gas increases to twice that of the blown gas, thorough agitating effect is obtained by a small amount of the blown gas.
JP1198080A 1980-02-05 1980-02-05 Blowing method of top-blown converter Pending JPS56112411A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1198080A JPS56112411A (en) 1980-02-05 1980-02-05 Blowing method of top-blown converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1198080A JPS56112411A (en) 1980-02-05 1980-02-05 Blowing method of top-blown converter

Publications (1)

Publication Number Publication Date
JPS56112411A true JPS56112411A (en) 1981-09-04

Family

ID=11792744

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1198080A Pending JPS56112411A (en) 1980-02-05 1980-02-05 Blowing method of top-blown converter

Country Status (1)

Country Link
JP (1) JPS56112411A (en)

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