JPS5576007A - Blowing control method of pure oxygen top blown converter - Google Patents

Blowing control method of pure oxygen top blown converter

Info

Publication number
JPS5576007A
JPS5576007A JP15026178A JP15026178A JPS5576007A JP S5576007 A JPS5576007 A JP S5576007A JP 15026178 A JP15026178 A JP 15026178A JP 15026178 A JP15026178 A JP 15026178A JP S5576007 A JPS5576007 A JP S5576007A
Authority
JP
Japan
Prior art keywords
slag
blowing
computer
lance
signal
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
JP15026178A
Other languages
Japanese (ja)
Other versions
JPS5856729B2 (en
Inventor
Kanji Emoto
Shuji Ozu
Masayuki Onishi
Hirosuke Yamada
Yasuo Masuda
Masakatsu Ogawa
Katsuhisa Hirayama
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 JP15026178A priority Critical patent/JPS5856729B2/en
Priority to CA000341144A priority patent/CA1137758A/en
Priority to SE7909970A priority patent/SE447997B/en
Priority to GB7941841A priority patent/GB2042592B/en
Priority to BE0/198439A priority patent/BE880450A/en
Priority to FR7929896A priority patent/FR2443509A1/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
Publication of JPS5576007A publication Critical patent/JPS5576007A/en
Priority to US06/268,061 priority patent/US4398948A/en
Publication of JPS5856729B2 publication Critical patent/JPS5856729B2/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

Landscapes

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

Abstract

PURPOSE: To stabilize bolwing and improve the accuracy of blowing end-point control by detecting the change in the slag-making condition along with lapse of blowing time through measurement of the acceleration of a detecting body produced by the in-furnace motion of the slag and applying correcting to the blowing program.
CONSTITUTION: An acceleration detector loaded into a converter 8, i.e., a crystal vibrator 2 is mounted to the upper part of an oxygen-blowing lance 1. The signal detected here is subjected to waveform processing in a signal processing machine 3 and is then inputted to a computer 4. The computer 4 compares said signal and the preset correct level signal and commands the set changing of the elevating control machine 5 and oxygen feed rate control machine 6 of the lance 1. At this time, the waveforms having undergone signal processing corresponds to the slag-off condition in the furnace depending upon the magnitudes of crest indices and therefore, the computer 4 judges the slag-off condition and so comands as to increase or decrease lance height or oxygen flow or both thereof as to make the slag-off good.
COPYRIGHT: (C)1980,JPO&Japio
JP15026178A 1978-12-05 1978-12-05 Blowing control method for pure oxygen top-blown converter Expired JPS5856729B2 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
JP15026178A JPS5856729B2 (en) 1978-12-05 1978-12-05 Blowing control method for pure oxygen top-blown 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
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
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
BE0/198439A BE880450A (en) 1978-12-05 1979-12-05 IMPROVEMENTS IN STEEL MANUFACTURING
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
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
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
JP15026178A JPS5856729B2 (en) 1978-12-05 1978-12-05 Blowing control method for pure oxygen top-blown converter

Publications (2)

Publication Number Publication Date
JPS5576007A true JPS5576007A (en) 1980-06-07
JPS5856729B2 JPS5856729B2 (en) 1983-12-16

Family

ID=15493065

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15026178A Expired JPS5856729B2 (en) 1978-12-05 1978-12-05 Blowing control method for pure oxygen top-blown converter

Country Status (2)

Country Link
JP (1) JPS5856729B2 (en)
BE (1) BE880450A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02149610A (en) * 1988-11-30 1990-06-08 Kobe Steel Ltd Detection of slopping in molten iron treating furnace
KR20140131259A (en) * 2013-02-14 2014-11-12 에스엠에스 지마크 악티엔게젤샤프트 Method for operating an oxygen blowing lance in a metallurgical vessel, and measuring system for detecting measuring signals used in doing so
JP2022519386A (en) * 2018-10-23 2022-03-23 ナカノ，ジンイチロウ How to control the position of the furnace lance
CN115507657A (en) * 2022-09-28 2022-12-23 昆明理工大学 Chaos mapping-based nonlinear oxygen-enriched blowing method and electronic equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02149610A (en) * 1988-11-30 1990-06-08 Kobe Steel Ltd Detection of slopping in molten iron treating furnace
KR20140131259A (en) * 2013-02-14 2014-11-12 에스엠에스 지마크 악티엔게젤샤프트 Method for operating an oxygen blowing lance in a metallurgical vessel, and measuring system for detecting measuring signals used in doing so
JP2022519386A (en) * 2018-10-23 2022-03-23 ナカノ，ジンイチロウ How to control the position of the furnace lance
CN115507657A (en) * 2022-09-28 2022-12-23 昆明理工大学 Chaos mapping-based nonlinear oxygen-enriched blowing method and electronic equipment
CN115507657B (en) * 2022-09-28 2024-04-26 昆明理工大学 Nonlinear oxygen-enriched blowing method based on chaotic mapping and electronic equipment

Also Published As

Publication number Publication date
BE880450A (en) 1980-04-01
JPS5856729B2 (en) 1983-12-16

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