JPS55125217A - Slag forming control method in converter - Google Patents

Slag forming control method in converter

Info

Publication number
JPS55125217A
JPS55125217A JP3303379A JP3303379A JPS55125217A JP S55125217 A JPS55125217 A JP S55125217A JP 3303379 A JP3303379 A JP 3303379A JP 3303379 A JP3303379 A JP 3303379A JP S55125217 A JPS55125217 A JP S55125217A
Authority
JP
Japan
Prior art keywords
slag
converter
lance
forming
accelerations
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
JP3303379A
Other languages
Japanese (ja)
Other versions
JPS5843441B2 (en
Inventor
Hirosuke Yamada
Masayuki Onishi
Masakatsu Ogawa
Yasuo Masuda
Kanji Emoto
Katsuhisa Hirayama
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 JP3303379A priority Critical patent/JPS5843441B2/en
Priority to GB7941841A priority patent/GB2042592B/en
Priority to SE7909970A priority patent/SE447997B/en
Priority to CA000341144A priority patent/CA1137758A/en
Priority to DE2948960A priority patent/DE2948960C2/en
Priority to AU53484/79A priority patent/AU524195B2/en
Priority to DE2953923A priority patent/DE2953923C2/en
Priority to AT0771479A priority patent/AT385054B/en
Priority to FR7929896A priority patent/FR2443509A1/en
Publication of JPS55125217A publication Critical patent/JPS55125217A/en
Priority to US06/268,061 priority patent/US4398948A/en
Publication of JPS5843441B2 publication Critical patent/JPS5843441B2/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 obtain optimum slag-off condition according to molten steel kinds by detecting the accelerations in the horizontal direction action upon the acceleration detector inserted into the converter based on the slag-forming motion formed through in-furnace reaction. CONSTITUTION:The accelerations in the horizontal direction acting upon the foregoing acceleration detector are supervised at all times and the slag-forming controlling is performed from the relations between their characteristic patterns and the slag-forming stages depending upon these. Namely, an electrode-type probe having the detection circuit which operates when made contact with the slag 10 formed on molten steel 9 is mounted to the sub-lance during the blowing operation in a converter 1. This sub-lance is suspended to perform both of the actual measurement of forming heights and the detection of the foregoing accelerations acting upon the O2- blowing lance 2. As a result of this, the detection accuracy of slag-off may be improved by performing the correction corresponding to the oxygen flow rate to the converter 1 and the set value of the lance 2 height. In the figure, 4 denotes a demodulator, 5 a waveform converter, 6 a recorder, 7 a process computer and 8 O2 flow rate setting, respectively.
JP3303379A 1978-12-05 1979-03-20 Sludge control method in converter Expired JPS5843441B2 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP3303379A JPS5843441B2 (en) 1979-03-20 1979-03-20 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
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
AU53484/79A AU524195B2 (en) 1978-12-05 1979-12-05 Controlling bos process
DE2948960A DE2948960C2 (en) 1978-12-05 1979-12-05 Method of controlling slagging
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
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
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
JP3303379A JPS5843441B2 (en) 1979-03-20 1979-03-20 Sludge control method in converter

Publications (2)

Publication Number Publication Date
JPS55125217A true JPS55125217A (en) 1980-09-26
JPS5843441B2 JPS5843441B2 (en) 1983-09-27

Family

ID=12375474

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3303379A Expired JPS5843441B2 (en) 1978-12-05 1979-03-20 Sludge control method in converter

Country Status (1)

Country Link
JP (1) JPS5843441B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018508731A (en) * 2014-12-24 2018-03-29 オウトテック （フィンランド） オサケ ユキチュアＯｕｔｏｔｅｃ （Ｆｉｎｌａｎｄ） Ｏｙ System and method for collecting and analyzing data on operating conditions in a top submerged lansing reactor system
JP2018508730A (en) * 2014-12-24 2018-03-29 オウトテック （フィンランド） オサケ ユキチュアＯｕｔｏｔｅｃ （Ｆｉｎｌａｎｄ） Ｏｙ Detection device for judging the operating state of molten metal in the top submerged lansing injection reactor system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5911858A (en) * 1982-07-12 1984-01-21 マルエイ住器株式会社 Foldable sauna box
JPS59164631U (en) * 1983-04-20 1984-11-05 株式会社　ヤジマステンレス Side plate foldable sauna box

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018508731A (en) * 2014-12-24 2018-03-29 オウトテック （フィンランド） オサケ ユキチュアＯｕｔｏｔｅｃ （Ｆｉｎｌａｎｄ） Ｏｙ System and method for collecting and analyzing data on operating conditions in a top submerged lansing reactor system
JP2018508730A (en) * 2014-12-24 2018-03-29 オウトテック （フィンランド） オサケ ユキチュアＯｕｔｏｔｅｃ （Ｆｉｎｌａｎｄ） Ｏｙ Detection device for judging the operating state of molten metal in the top submerged lansing injection reactor system

Also Published As

Publication number Publication date
JPS5843441B2 (en) 1983-09-27

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