JPS6447821A - Method for operating autogoneous smelting furnace - Google Patents

Method for operating autogoneous smelting furnace

Info

Publication number
JPS6447821A
JPS6447821A JP20085587A JP20085587A JPS6447821A JP S6447821 A JPS6447821 A JP S6447821A JP 20085587 A JP20085587 A JP 20085587A JP 20085587 A JP20085587 A JP 20085587A JP S6447821 A JPS6447821 A JP S6447821A
Authority
JP
Japan
Prior art keywords
temp
autogoneous
furnace
smelting furnace
operating
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
JP20085587A
Other languages
Japanese (ja)
Other versions
JPH021898B2 (en
Inventor
Nobumasa Iemori
Yasuo Oshima
Yoshiaki Mori
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.)
Sumitomo Metal Mining Co Ltd
Original Assignee
Sumitomo Metal Mining Co 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 Mining Co Ltd filed Critical Sumitomo Metal Mining Co Ltd
Priority to JP20085587A priority Critical patent/JPS6447821A/en
Publication of JPS6447821A publication Critical patent/JPS6447821A/en
Publication of JPH021898B2 publication Critical patent/JPH021898B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0026—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide in the flame of a burner or a hot gas stream

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

PURPOSE:To prevent unnecessary raise of furnace hearth temp. and to stabilize the operation by selecting a blowing condition at the time of blowing raw materials of ore, flux, etc., through a lance pipe so that molten metal temp. at the prescribed position does not exceed the setting value. CONSTITUTION:The temp. of the molten metal 6 just above the furnace hearth 4 near tip of the lance pipe 3 inserted in a autogoneous smelting furnace of measured with a thermometer 7. Next, the powdery raw materials of the ore, flux, etc., are blown into the furnace from settler part 1 through the above pipe 3 at thigh speed. Then, the blowing condition is selected so that the above measured temp. does not exceed the preset upper limit value.
JP20085587A 1987-08-13 1987-08-13 Method for operating autogoneous smelting furnace Granted JPS6447821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20085587A JPS6447821A (en) 1987-08-13 1987-08-13 Method for operating autogoneous smelting furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20085587A JPS6447821A (en) 1987-08-13 1987-08-13 Method for operating autogoneous smelting furnace

Publications (2)

Publication Number Publication Date
JPS6447821A true JPS6447821A (en) 1989-02-22
JPH021898B2 JPH021898B2 (en) 1990-01-16

Family

ID=16431345

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20085587A Granted JPS6447821A (en) 1987-08-13 1987-08-13 Method for operating autogoneous smelting furnace

Country Status (1)

Country Link
JP (1) JPS6447821A (en)

Also Published As

Publication number Publication date
JPH021898B2 (en) 1990-01-16

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