JPS56123315A - Method for controlling blowing in converter - Google Patents

Method for controlling blowing in converter

Info

Publication number
JPS56123315A
JPS56123315A JP2396580A JP2396580A JPS56123315A JP S56123315 A JPS56123315 A JP S56123315A JP 2396580 A JP2396580 A JP 2396580A JP 2396580 A JP2396580 A JP 2396580A JP S56123315 A JPS56123315 A JP S56123315A
Authority
JP
Japan
Prior art keywords
lance
slag
oxygen
flow rate
blowing
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
JP2396580A
Other languages
Japanese (ja)
Inventor
Hirosuke Yamada
Takashi Omori
Takamasa Shibayama
Kyoji Nakanishi
Tsutomu Nozaki
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 JP2396580A priority Critical patent/JPS56123315A/en
Publication of JPS56123315A publication Critical patent/JPS56123315A/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 control slagging conditions and improve the rate of simultaneous hitting rate by calculating slag height from the vibrations of an oxygen top-blown lance and controlling the flow rate of top blowing oxygen, and the flow rate of bottom blown stirring gas at the time of blowing in converter steel making. CONSTITUTION:During blowing, a lance 1 receives the vibrations produced by foaming of slag 7. These vibrations are detected with the vibrator 9 mounted in the upper part of the lance 1 and the information thereof is processed in a signal processing unit 2, whereby slag height is calculated. Based on the result of this calculation, a lance motor 6 and a top blowing oxygen flow rate control valve 5 provided to an oxygen piping 12 are controlled, whereby the lance action of adjusting the height of the lance 1 and the flow rate of oxygen is carried out. The bottom blown gas control valve 4 provided to a gas piping 11 for stirring is opened and closed to control the stirring of molten steel 8 and slag 7, whereby the foaming of the slag 7 is controlled. By this method, the higher yields of iron sources, the longer life of refractories, etc. are achieved.
JP2396580A 1980-02-29 1980-02-29 Method for controlling blowing in converter Pending JPS56123315A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2396580A JPS56123315A (en) 1980-02-29 1980-02-29 Method for controlling blowing in converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2396580A JPS56123315A (en) 1980-02-29 1980-02-29 Method for controlling blowing in converter

Publications (1)

Publication Number Publication Date
JPS56123315A true JPS56123315A (en) 1981-09-28

Family

ID=12125254

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2396580A Pending JPS56123315A (en) 1980-02-29 1980-02-29 Method for controlling blowing in converter

Country Status (1)

Country Link
JP (1) JPS56123315A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5757820A (en) * 1980-09-25 1982-04-07 Nippon Kokan Kk <Nkk> Method for preventing slopping in top and bottom blown converter
CN113504725A (en) * 2021-07-09 2021-10-15 衡阳镭目科技有限责任公司 Real-time slag state monitoring device of converter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5377816A (en) * 1976-12-22 1978-07-10 Nippon Steel Corp Discriminating and controlling method for converter conditions in blowing

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5377816A (en) * 1976-12-22 1978-07-10 Nippon Steel Corp Discriminating and controlling method for converter conditions in blowing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5757820A (en) * 1980-09-25 1982-04-07 Nippon Kokan Kk <Nkk> Method for preventing slopping in top and bottom blown converter
JPS6050842B2 (en) * 1980-09-25 1985-11-11 日本鋼管株式会社 Method for preventing slopping in top-bottom blowing converter
CN113504725A (en) * 2021-07-09 2021-10-15 衡阳镭目科技有限责任公司 Real-time slag state monitoring device of converter

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