JPS5591917A - Forecasting method for converter slopping - Google Patents

Forecasting method for converter slopping

Info

Publication number
JPS5591917A
JPS5591917A JP16219678A JP16219678A JPS5591917A JP S5591917 A JPS5591917 A JP S5591917A JP 16219678 A JP16219678 A JP 16219678A JP 16219678 A JP16219678 A JP 16219678A JP S5591917 A JPS5591917 A JP S5591917A
Authority
JP
Japan
Prior art keywords
slopping
converter
patterns
region
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
JP16219678A
Other languages
Japanese (ja)
Inventor
Hirosuke Yamada
Yasuo Masuda
Kanji Emoto
Masayuki Onishi
Katsuhisa Hirayama
Shuji Ozu
Masakatsu Ogawa
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 JP16219678A priority Critical patent/JPS5591917A/en
Priority to SE7909970A priority patent/SE447997B/en
Priority to CA000341144A priority patent/CA1137758A/en
Priority to GB7941841A priority patent/GB2042592B/en
Priority to DE2948960A priority patent/DE2948960C2/en
Priority to DE2953923A priority patent/DE2953923C2/en
Priority to AU53484/79A priority patent/AU524195B2/en
Priority to FR7929896A priority patent/FR2443509A1/en
Priority to AT0771479A priority patent/AT385054B/en
Publication of JPS5591917A publication Critical patent/JPS5591917A/en
Priority to US06/268,061 priority patent/US4398948A/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
    • C21C5/32—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 take a suitable step for preventing converter slopping, by measuring the acceleration of the horizontal motion of a lance inserted into the converter, by classifying the measured data into plural patterns, and by discriminating the patterns in order to estimate the slag foaming state after about 10 sec. CONSTITUTION:The magnitude of the horizontal motion acceleration of a lance 1 inserted into a converter 3 is measured and is integrated and averaged by a wave transducer 9 at each several seconds, then the result is summed to a recorder at each 20-30sec., hereby slag foaming state after 10-several tens sec. is estimated. The estimation described above is conducted by the formularization of each five patterns of the integrated average according to the past records. The behavior of the part B just before the beginning of slopping being particularly noticed, the blowing conditions are suitably changed by a computer 11 when the estimated integrated average of the vibtation strength of the region B is about to enter the slopping region in order to pull back the conditions to the slag-making region, thereby preventing the slopping.
JP16219678A 1978-12-05 1978-12-29 Forecasting method for converter slopping Pending JPS5591917A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP16219678A JPS5591917A (en) 1978-12-29 1978-12-29 Forecasting method for converter slopping
SE7909970A SE447997B (en) 1978-12-05 1979-12-04 SET TO REGULATE THE BATTLE EDUCATION IN AN 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
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
DE2953923A DE2953923C2 (en) 1978-12-05 1979-12-05 Method for predetermining the volatility in an LD converter
DE2948960A DE2948960C2 (en) 1978-12-05 1979-12-05 Method of controlling slagging
AU53484/79A AU524195B2 (en) 1978-12-05 1979-12-05 Controlling bos process
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
AT0771479A AT385054B (en) 1978-12-05 1979-12-05 METHOD FOR CONTROLLING SLAG FORMATION IN AN LD CONVERTER
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
JP16219678A JPS5591917A (en) 1978-12-29 1978-12-29 Forecasting method for converter slopping

Publications (1)

Publication Number Publication Date
JPS5591917A true JPS5591917A (en) 1980-07-11

Family

ID=15749811

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16219678A Pending JPS5591917A (en) 1978-12-05 1978-12-29 Forecasting method for converter slopping

Country Status (1)

Country Link
JP (1) JPS5591917A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS589911A (en) * 1981-07-08 1983-01-20 Kawasaki Steel Corp Controlling method for slag making in converter
JPH02149610A (en) * 1988-11-30 1990-06-08 Kobe Steel Ltd Detection of slopping in molten iron treating furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS589911A (en) * 1981-07-08 1983-01-20 Kawasaki Steel Corp Controlling method for slag making in converter
JPH02149610A (en) * 1988-11-30 1990-06-08 Kobe Steel Ltd Detection of slopping in molten iron treating furnace

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