JPS54146210A - Separating method for slag from molten metal - Google Patents

Separating method for slag from molten metal

Info

Publication number
JPS54146210A
JPS54146210A JP5440378A JP5440378A JPS54146210A JP S54146210 A JPS54146210 A JP S54146210A JP 5440378 A JP5440378 A JP 5440378A JP 5440378 A JP5440378 A JP 5440378A JP S54146210 A JPS54146210 A JP S54146210A
Authority
JP
Japan
Prior art keywords
slag
stream
molten
ladle
molten slag
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
JP5440378A
Other languages
Japanese (ja)
Inventor
Takeshi Hirose
Hiroshi Funanogawa
Teruyuki Hasegawa
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 Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP5440378A priority Critical patent/JPS54146210A/en
Publication of JPS54146210A publication Critical patent/JPS54146210A/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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0087—Treatment of slags covering the steel bath, e.g. for separating slag from the molten metal

Landscapes

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

Abstract

PURPOSE:To prevent molten slag from entering a ladle, in poruing molten steel from a converter into the ladle, by spraying an inert gas upon the side of the pouring stream from a right-angled direction to scatter molten slag as well as to detect discharge of molten slag owing to a change in stream shape when the pouring molten steel turns into a molten slag stream. CONSTITUTION:After refining work in converter 4 molten steel 2 is poured into ladle 5 through tap hole 1 by tilting converter 4. At this time, inert gas 7 such as N2 or Ar is sprayed upon the side of pouring molten steel stream 6 from a right-angled direction. When stream 6 turns into a stream of molten slag 3, the molten slag stream is scattered and deformed under the same press. of gas 7 since the specific gravity of the molten slag stream is much lower than that of the molten steel stream. The slag scattered to the outside of ladle 5 enters slag pan 15 through molten slag runner 16. By raising up converter 4 simultaneously with discharge of slag 3, little slag enters ladle 5, rephosphorization due to molten slag is prevented, and yields of additives such as deoxidizer and ferroalloy are enhanced.
JP5440378A 1978-05-10 1978-05-10 Separating method for slag from molten metal Pending JPS54146210A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5440378A JPS54146210A (en) 1978-05-10 1978-05-10 Separating method for slag from molten metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5440378A JPS54146210A (en) 1978-05-10 1978-05-10 Separating method for slag from molten metal

Publications (1)

Publication Number Publication Date
JPS54146210A true JPS54146210A (en) 1979-11-15

Family

ID=12969719

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5440378A Pending JPS54146210A (en) 1978-05-10 1978-05-10 Separating method for slag from molten metal

Country Status (1)

Country Link
JP (1) JPS54146210A (en)

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