EP1315841A4 - Process for the metallurgical treatment of molten steel in a converter with oxygen top blown - Google Patents

Process for the metallurgical treatment of molten steel in a converter with oxygen top blown

Info

Publication number
EP1315841A4
EP1315841A4 EP00972070A EP00972070A EP1315841A4 EP 1315841 A4 EP1315841 A4 EP 1315841A4 EP 00972070 A EP00972070 A EP 00972070A EP 00972070 A EP00972070 A EP 00972070A EP 1315841 A4 EP1315841 A4 EP 1315841A4
Authority
EP
European Patent Office
Prior art keywords
molten steel
converter
lance
top blown
metallurgical treatment
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
EP00972070A
Other languages
German (de)
French (fr)
Other versions
EP1315841B1 (en
EP1315841A1 (en
Inventor
Bernd Feldhaus
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.)
Berry Metal Co
Original Assignee
Berry Metal Co
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 Berry Metal Co filed Critical Berry Metal Co
Publication of EP1315841A1 publication Critical patent/EP1315841A1/en
Publication of EP1315841A4 publication Critical patent/EP1315841A4/en
Application granted granted Critical
Publication of EP1315841B1 publication Critical patent/EP1315841B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/068—Decarburising
    • 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
    • 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
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • 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
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4673—Measuring and sampling devices

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

this invention concerns a blowing lance and a procedure for the metallurgical treatment of molten steel in a converter with oxygen top blown over the molten steel. In order to monitor the treatment process the intention is for a temperature probe (21) to be integrated into the water-cooled lance head (2) behind the front end of the lance head (11a) and between the cooling chambers (5-10) formed in the lance head (2). The signal lines (26) of this temperature probe run through the lance body (1), more specifically, in a central protective pipe which has no connections to the cooling medium or to the oxygen conducting channels (15, 16, and 17).
EP00972070A 1999-10-06 2000-10-06 Process for the metallurgical treatment of molten steel in a converter with oxygen top blown Expired - Lifetime EP1315841B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19948187 1999-10-06
DE19948187A DE19948187C2 (en) 1999-10-06 1999-10-06 Process for the metallurgical treatment of a molten steel in a converter with oxygen blown onto the molten steel and oxygen blowing lance
PCT/US2000/028077 WO2002031212A1 (en) 1999-10-06 2000-10-06 Process for the metallurgical treatment of molten steel in a converter with oxygen top blown

Publications (3)

Publication Number Publication Date
EP1315841A1 EP1315841A1 (en) 2003-06-04
EP1315841A4 true EP1315841A4 (en) 2004-06-30
EP1315841B1 EP1315841B1 (en) 2005-04-27

Family

ID=7924730

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00972070A Expired - Lifetime EP1315841B1 (en) 1999-10-06 2000-10-06 Process for the metallurgical treatment of molten steel in a converter with oxygen top blown

Country Status (6)

Country Link
EP (1) EP1315841B1 (en)
AT (1) ATE294244T1 (en)
AU (1) AU2001210785A1 (en)
CA (1) CA2388397A1 (en)
DE (2) DE19948187C2 (en)
WO (1) WO2002031212A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10253463A1 (en) * 2002-11-16 2004-06-03 Gecon Engineering Gmbh Method and device for cooling blowing lances
US7402274B2 (en) * 2005-12-07 2008-07-22 Berry Metal Company Metal making lance slag detection system
DE102010001669A1 (en) * 2010-02-08 2011-08-11 Siemens Aktiengesellschaft, 80333 Device for detecting at least one measured variable on an oven, and oven
UA113614C2 (en) * 2013-02-14 2017-02-27 METHOD OF OPERATION OF OXYGEN PRODUCTION COMPANY IN METALLURGICAL CAPACITY AND MEASUREMENT SYSTEM FOR DETERMINATION OF USED DURING SIGNIFICANCE
CA2947673C (en) * 2014-03-14 2020-06-23 Berry Metal Company Metal making lance with spring-loaded thermocouple or camera in lance tip
ES2900126T3 (en) * 2018-08-17 2022-03-15 Berry Metal Co Method and apparatus for controlling the operation and position of a lance and nozzle assembly in a bath of molten metal in a vessel

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1433461B2 (en) * 1964-12-30 1972-02-10 Fried. Krupp Gmbh, 4300 Essen PROCESS AND DEVICE FOR MONITORING AND CONTROLLING THE REACTION PROCESS IN THE OXYGEN INFLATION PROCESS
US3574598A (en) * 1967-08-18 1971-04-13 Bethlehem Steel Corp Method for controlling basic oxygen steelmaking
US4106756A (en) * 1976-11-01 1978-08-15 Pullman Berry Company Oxygen lance and sensing adapter arrangement
US4474361A (en) * 1980-07-30 1984-10-02 Nippon Steel Corporation Oxygen-blown steelmaking furnace
US4732607A (en) * 1985-11-26 1988-03-22 Sumitomo Metal Industries, Ltd. Method of controlling the stirring strength and flow rate of a jet of gas blown through a lance onto a molten metal surface
DE3543836A1 (en) * 1985-12-12 1987-06-19 Clemens Karl Heinz Twin blowing lance installation for metallurgical treatments, with integral measuring lance installation
JPS62278217A (en) * 1986-05-27 1987-12-03 Nippon Steel Corp Lance inlaying thermocouple for controlling slag level
JPH03197612A (en) * 1989-12-25 1991-08-29 Kawasaki Steel Corp Method for refining molten metal

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *

Also Published As

Publication number Publication date
EP1315841B1 (en) 2005-04-27
ATE294244T1 (en) 2005-05-15
DE19948187C2 (en) 2001-08-09
EP1315841A1 (en) 2003-06-04
DE60019815D1 (en) 2005-06-02
DE19948187A1 (en) 2001-05-10
AU2001210785A1 (en) 2002-04-22
WO2002031212A1 (en) 2002-04-18
CA2388397A1 (en) 2002-04-18

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