JPS5690912A - Method of sucking and expelling desiliconization slag - Google Patents

Method of sucking and expelling desiliconization slag

Info

Publication number
JPS5690912A
JPS5690912A JP16706579A JP16706579A JPS5690912A JP S5690912 A JPS5690912 A JP S5690912A JP 16706579 A JP16706579 A JP 16706579A JP 16706579 A JP16706579 A JP 16706579A JP S5690912 A JPS5690912 A JP S5690912A
Authority
JP
Japan
Prior art keywords
slag
desiliconization
molten iron
bath surface
expelling
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
JP16706579A
Other languages
Japanese (ja)
Inventor
Soichi Hiroshima
Hidenao Hirasawa
Nobuyoshi Miura
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 JP16706579A priority Critical patent/JPS5690912A/en
Publication of JPS5690912A publication Critical patent/JPS5690912A/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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/04—Removing impurities other than carbon, phosphorus or sulfur

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

PURPOSE:To perform slag expulsion efficiently by sucking and expelling the slag produced by desiliconization of molten iron from bath surface under specific conditions. CONSTITUTION:The slag produced on the molten iron surface in a treating vessel by desiliconization treatment of molten iron is sucked and expelled from the bath surface by using a suction port of a suction head of about 50-300mm.phi, disposing the same at height 20-70mm. above the bath surface and using 20-500Nm<2>/min wind flow rates. Thereby, the desiliconization slag of about 90-100% may be expelled efficiently from the molten iron bath surface. The viscosity of desiliconization slag is approximately less than 1 poise at 1,350 deg.C.
JP16706579A 1979-12-22 1979-12-22 Method of sucking and expelling desiliconization slag Pending JPS5690912A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16706579A JPS5690912A (en) 1979-12-22 1979-12-22 Method of sucking and expelling desiliconization slag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16706579A JPS5690912A (en) 1979-12-22 1979-12-22 Method of sucking and expelling desiliconization slag

Publications (1)

Publication Number Publication Date
JPS5690912A true JPS5690912A (en) 1981-07-23

Family

ID=15842743

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16706579A Pending JPS5690912A (en) 1979-12-22 1979-12-22 Method of sucking and expelling desiliconization slag

Country Status (1)

Country Link
JP (1) JPS5690912A (en)

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