JPS5576008A - Slag-making control method in converter - Google Patents

Slag-making control method in converter

Info

Publication number
JPS5576008A
JPS5576008A JP15026278A JP15026278A JPS5576008A JP S5576008 A JPS5576008 A JP S5576008A JP 15026278 A JP15026278 A JP 15026278A JP 15026278 A JP15026278 A JP 15026278A JP S5576008 A JPS5576008 A JP S5576008A
Authority
JP
Japan
Prior art keywords
slag
acceleration
slopping
converter
integrated
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
JP15026278A
Other languages
Japanese (ja)
Other versions
JPS5853690B2 (en
Inventor
Kanji Emoto
Masayuki Onishi
Katsuhisa Hirayama
Hirosuke Yamada
Masakatsu Ogawa
Yasuo Masuda
Shuji Ozu
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 JP15026278A priority Critical patent/JPS5853690B2/en
Priority to GB7941841A priority patent/GB2042592B/en
Priority to CA000341144A priority patent/CA1137758A/en
Priority to SE7909970A priority patent/SE447997B/en
Priority to AT0771479A priority patent/AT385054B/en
Priority to DE2953923A priority patent/DE2953923C2/en
Priority to DE2948960A priority patent/DE2948960C2/en
Priority to FR7929896A priority patent/FR2443509A1/en
Priority to AU53484/79A priority patent/AU524195B2/en
Publication of JPS5576008A publication Critical patent/JPS5576008A/en
Priority to US06/268,061 priority patent/US4398948A/en
Publication of JPS5853690B2 publication Critical patent/JPS5853690B2/en
Expired 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
    • C21C5/32—Blowing from above

Landscapes

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

Abstract

PURPOSE:To prevent slopping and perform slag-making control so as to obtain optimum slag-off condition by integrating the impulsive acceleration acting upon an acceleration detector based on only the motion of the slag produced through its in- furnace reaction. CONSTITUTION:The accelerometer 7 installed in the upper part of an oxygen-blowing lance 2 being the acceleration detector loaded into a converter 1, e.g., a crystal vibrator, detects the acceleration change acting upon the lance 2. The waveforms after erasing of the acceleration changes of a low frequency range by passing the acceleration change through a filter 8 are amplified in an amplifier 9 and are integrated by an integrating processor 10. The levels of the integrated values are divided to a number of steps by a slag-making measurement and slopping forecast display device 11 and depending upon their heights the slag-off condition is judged. The judgement thereof is used for controlling of blowing and the change rate of the integrated value for forecasting slopping, respectively.
JP15026278A 1978-12-05 1978-12-05 Sludge control method in converter Expired JPS5853690B2 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP15026278A JPS5853690B2 (en) 1978-12-05 1978-12-05 Sludge control method in converter
GB7941841A GB2042592B (en) 1978-12-05 1979-12-04 Methods for controlling blowing blowing controlling the slag formation and predicting slopping in the blowing of molten pig iron in ld converter
CA000341144A CA1137758A (en) 1978-12-05 1979-12-04 Methods for controlling blowing, controlling the slag formation and predicting slopping in the blowing of molten pig in ld converter
SE7909970A SE447997B (en) 1978-12-05 1979-12-04 SET TO REGULATE THE BATTLE EDUCATION IN AN LD CONVERTER
DE2953923A DE2953923C2 (en) 1978-12-05 1979-12-05 Method for predetermining the volatility in an LD converter
AT0771479A AT385054B (en) 1978-12-05 1979-12-05 METHOD FOR CONTROLLING SLAG FORMATION IN AN LD CONVERTER
DE2948960A DE2948960C2 (en) 1978-12-05 1979-12-05 Method of controlling slagging
FR7929896A FR2443509A1 (en) 1978-12-05 1979-12-05 METHODS OF ADJUSTING OXYGEN BLOWING, ADJUSTING MILK FORMATION AND SPRAY PREDICTION DURING THE IMPLEMENTATION OF THE L-D PROCESS
AU53484/79A AU524195B2 (en) 1978-12-05 1979-12-05 Controlling bos process
US06/268,061 US4398948A (en) 1978-12-05 1981-05-28 Methods for controlling blowing, controlling the slag formation and predicting slopping in the blowing of molten pig iron in LD converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15026278A JPS5853690B2 (en) 1978-12-05 1978-12-05 Sludge control method in converter

Publications (2)

Publication Number Publication Date
JPS5576008A true JPS5576008A (en) 1980-06-07
JPS5853690B2 JPS5853690B2 (en) 1983-11-30

Family

ID=15493086

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15026278A Expired JPS5853690B2 (en) 1978-12-05 1978-12-05 Sludge control method in converter

Country Status (1)

Country Link
JP (1) JPS5853690B2 (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
EP2539092A4 (en) * 2010-02-26 2017-07-19 Tenova Goodfellow Inc. System for furnace slopping prediction and lance optimization

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
EP2539092A4 (en) * 2010-02-26 2017-07-19 Tenova Goodfellow Inc. System for furnace slopping prediction and lance optimization

Also Published As

Publication number Publication date
JPS5853690B2 (en) 1983-11-30

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