CA1137758A - Methods for controlling blowing, controlling the slag formation and predicting slopping in the blowing of molten pig in ld converter - Google Patents

Methods for controlling blowing, controlling the slag formation and predicting slopping in the blowing of molten pig in ld converter

Info

Publication number
CA1137758A
CA1137758A CA000341144A CA341144A CA1137758A CA 1137758 A CA1137758 A CA 1137758A CA 000341144 A CA000341144 A CA 000341144A CA 341144 A CA341144 A CA 341144A CA 1137758 A CA1137758 A CA 1137758A
Authority
CA
Canada
Prior art keywords
slag
converter
acceleration
slag formation
lance
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.)
Expired
Application number
CA000341144A
Other languages
English (en)
French (fr)
Inventor
Kanji Emoto
Masakatsu Ogawa
Hideshi Ohzu
Hirosuke Yamada
Masayuki Onishi
Katsuhisa Hirayama
Yasuo Masuda
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
Priority claimed from JP15026178A external-priority patent/JPS5856729B2/ja
Priority claimed from JP15026278A external-priority patent/JPS5853690B2/ja
Priority claimed from JP16219678A external-priority patent/JPS5591917A/ja
Priority claimed from JP3303379A external-priority patent/JPS5843441B2/ja
Priority claimed from JP7063379A external-priority patent/JPS5853691B2/ja
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Application granted granted Critical
Publication of CA1137758A publication Critical patent/CA1137758A/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)
CA000341144A 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 Expired CA1137758A (en)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP15026178A JPS5856729B2 (ja) 1978-12-05 1978-12-05 純酸素上吹き転炉の吹錬制御法
JP150,262/78 1978-12-05
JP15026278A JPS5853690B2 (ja) 1978-12-05 1978-12-05 転炉における造滓制御方法
JP150,261/78 1978-12-05
JP162,196/78 1978-12-29
JP16219678A JPS5591917A (en) 1978-12-29 1978-12-29 Forecasting method for converter slopping
JP3303379A JPS5843441B2 (ja) 1979-03-20 1979-03-20 転炉における造滓制御方法
JP33,033/79 1979-03-20
JP70,633/79 1979-06-07
JP7063379A JPS5853691B2 (ja) 1979-06-07 1979-06-07 転炉の造滓制御法

Publications (1)

Publication Number Publication Date
CA1137758A true CA1137758A (en) 1982-12-21

Family

ID=27521482

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000341144A Expired 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

Country Status (8)

Country Link
US (1) US4398948A (US20080293856A1-20081127-C00150.png)
AT (1) AT385054B (US20080293856A1-20081127-C00150.png)
AU (1) AU524195B2 (US20080293856A1-20081127-C00150.png)
CA (1) CA1137758A (US20080293856A1-20081127-C00150.png)
DE (2) DE2953923C2 (US20080293856A1-20081127-C00150.png)
FR (1) FR2443509A1 (US20080293856A1-20081127-C00150.png)
GB (1) GB2042592B (US20080293856A1-20081127-C00150.png)
SE (1) SE447997B (US20080293856A1-20081127-C00150.png)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA835649B (en) * 1982-08-25 1984-04-25 British Steel Corp Lancing in electric arc steelmaking
DE3430887A1 (de) * 1984-08-22 1986-02-27 Didier-Werke Ag, 6200 Wiesbaden Verfahren zur reaktivierung eines katalysators und anlage zur durchfuehrung des verfahrens
AT392801B (de) * 1989-06-05 1991-06-25 Voest Alpine Ind Anlagen Verfahren zur schlackenfuehrung in einem blasstahlkonverter
ZA906892B (en) * 1989-09-04 1991-06-26 Nippon Steel Corp Method of operating in-bath smelting reduction furnace
ATE123816T1 (de) * 1991-11-28 1995-06-15 Carbagas Verfahren zur unterdrückung von staub und rauch bei der elektrostahlherstellung.
US5405121A (en) * 1994-04-29 1995-04-11 Centro De Investigation Y De Estudios Avanzados Del Ipn Apparatus to indicate the oxygen content of molten copper using the vibration signal of a graphite rod immersed into the molten metal
US6539805B2 (en) * 1994-07-19 2003-04-01 Vesuvius Crucible Company Liquid metal flow condition detection
US5584909A (en) * 1995-01-19 1996-12-17 Ltv Steel Company, Inc. Controlled foamy slag process
US5885323A (en) * 1997-04-25 1999-03-23 Ltv Steel Company, Inc. Foamy slag process using multi-circuit lance
US6264716B1 (en) * 1999-03-19 2001-07-24 Nupro Corporation Process for controlling the stirring energy delivered by a gas flowing through a liquid
KR100488757B1 (ko) * 2000-10-26 2005-05-11 주식회사 포스코 가스의 취입량에 따른 레이들내의 교반력 측정방법 및이를 이용한 청정강의 제조방법
KR20030052728A (ko) * 2001-12-21 2003-06-27 주식회사 포스코 레이들의 프리보드 및 슬래그 두께 측정장치 및 이를이용하여 상취랜스의 취입깊이를 제어하는 방법
KR100953624B1 (ko) 2002-12-18 2010-04-20 주식회사 포스코 랜스 모멘트 및 이미지 정보를 이용한 슬로핑 예측 장치및 그 방법
US8097063B2 (en) * 2010-02-26 2012-01-17 Tenova Goodfellow Inc. System for furnace slopping prediction and lance optimization
MX2012009815A (es) * 2010-02-26 2012-09-12 Tenova Goodfellow Inc Sistema para prediccion de vaciado de horno y optimizacion de lanza.
CN107110605B (zh) * 2014-12-24 2020-03-27 奥图泰(芬兰)公司 收集和分析与顶部浸没式喷射注射器反应器系统操作状况有关的数据的系统和方法
EP3245465B1 (en) * 2014-12-24 2019-04-17 Outotec (Finland) Oy Top-blown lancing injector reactor system with a sensing device for determining an operational condition in a molten bath
CN105695660B (zh) * 2016-03-21 2017-08-25 河北钢铁股份有限公司邯郸分公司 一种动态判断转炉冶炼过程中的炉渣状态方法
CN107287379B (zh) * 2016-03-31 2019-01-08 鞍钢股份有限公司 一种防止精炼过程钢包粘渣的方法
CN107299183B (zh) * 2017-06-28 2022-06-28 河钢股份有限公司邯郸分公司 一种智能降低转炉终渣氧化性的系统及方法
CN110991772B (zh) * 2019-12-27 2023-04-18 安徽工业大学 一种预测转炉终渣粘度模型的高效护炉方法
CN114507762A (zh) * 2020-11-15 2022-05-17 上海梅山钢铁股份有限公司 一种高钢铁比的转炉冶炼控制方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1182271B (de) * 1961-09-13 1964-11-26 Ct Nat De Rech S Metallurg Verfahren zur Vorherbestimmung des Schaeumens der Schlacke beim Oberwindfrischen von Roheisen
AT234127B (de) * 1962-07-25 1964-06-10 Bot Brassert Oxygen Technik Ag Verfahren zur Betriebsregelung von Blasverfahren in Abhängigkeit vom Schäumungsgrad der Schlacke
NL6501108A (US20080293856A1-20081127-C00150.png) * 1964-01-29 1965-07-30
DE1290557B (de) * 1964-03-23 1969-03-13 Krupp Gmbh Verfahren zur UEberwachung und Steuerung des Reaktionsablaufes bei Sauerstoffaufblaseverfahren
AT297073B (de) * 1969-04-15 1972-03-10 Voest Ag Verfahren zur Messung der Dicke der Schlackenschicht auf metallischen Bädern, insbesondere auf durch Vakuumbehandlung zu entgasenden Schmelzen
US3708159A (en) * 1971-01-28 1973-01-02 Steel Corp Method and apparatus for locating the surface of a liquid metal bath
DD96976A1 (US20080293856A1-20081127-C00150.png) * 1972-05-19 1973-04-12
BE828855A (fr) * 1975-05-07 1975-11-07 Procede pour controler l'operation d'affinage de la fonte

Also Published As

Publication number Publication date
FR2443509B1 (US20080293856A1-20081127-C00150.png) 1984-10-26
GB2042592B (en) 1983-04-13
SE7909970L (sv) 1980-06-06
AU5348479A (en) 1980-07-17
SE447997B (sv) 1987-01-12
AT385054B (de) 1988-02-10
AU524195B2 (en) 1982-09-02
GB2042592A (en) 1980-09-24
FR2443509A1 (fr) 1980-07-04
DE2948960C2 (de) 1984-06-07
DE2953923A1 (US20080293856A1-20081127-C00150.png) 1982-09-16
DE2948960A1 (de) 1980-06-12
ATA771479A (de) 1987-07-15
US4398948A (en) 1983-08-16
DE2953923C2 (de) 1985-05-09

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