JPS5620110A - Converter operating method - Google Patents

Converter operating method

Info

Publication number
JPS5620110A
JPS5620110A JP9602879A JP9602879A JPS5620110A JP S5620110 A JPS5620110 A JP S5620110A JP 9602879 A JP9602879 A JP 9602879A JP 9602879 A JP9602879 A JP 9602879A JP S5620110 A JPS5620110 A JP S5620110A
Authority
JP
Japan
Prior art keywords
lances
blowing
lime
furnace
gas
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
JP9602879A
Other languages
Japanese (ja)
Inventor
Kazuo Ogahira
Masazumi Hirai
Shozo Murakami
Hajime Nakagawa
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 JP9602879A priority Critical patent/JPS5620110A/en
Publication of JPS5620110A publication Critical patent/JPS5620110A/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 move the slag unevenly existing around the furnace walls to the central part and accelerate the melting of lime by blowing a gas by varying the gas blow rates of bottom blowing nozzles at suitable intervals. CONSTITUTION:Respective or every certain number of lances of furnace bottom lances 4 are grouped and a flow control unit is so installed that blowing gas flow rates may be independently controlled for each of respective lances or each of the lances of every plural lances having been grouped. The gas flow rates from the lances 4 are varied during blowing, so that the unmelted lime unevely existing around the furnace walls is carried to the furnace central part and the melting of the lime is accelerated.
JP9602879A 1979-07-30 1979-07-30 Converter operating method Pending JPS5620110A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9602879A JPS5620110A (en) 1979-07-30 1979-07-30 Converter operating method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9602879A JPS5620110A (en) 1979-07-30 1979-07-30 Converter operating method

Publications (1)

Publication Number Publication Date
JPS5620110A true JPS5620110A (en) 1981-02-25

Family

ID=14153925

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9602879A Pending JPS5620110A (en) 1979-07-30 1979-07-30 Converter operating method

Country Status (1)

Country Link
JP (1) JPS5620110A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014031553A (en) * 2012-08-03 2014-02-20 Nippon Steel & Sumitomo Metal Dephosphorization method for molten pig iron
CN113621751A (en) * 2021-06-17 2021-11-09 日照钢铁控股集团有限公司 Efficient bottom blowing method for improving steelmaking flow field in converter blowing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014031553A (en) * 2012-08-03 2014-02-20 Nippon Steel & Sumitomo Metal Dephosphorization method for molten pig iron
CN113621751A (en) * 2021-06-17 2021-11-09 日照钢铁控股集团有限公司 Efficient bottom blowing method for improving steelmaking flow field in converter blowing

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