DE3881307D1 - DEVICE AND METHOD FOR REDUCING THE CONTENT OF SLAGS WITH A MINIMUM REMAINING STEEL QUANTITY IN THE CONVERTER. - Google Patents

DEVICE AND METHOD FOR REDUCING THE CONTENT OF SLAGS WITH A MINIMUM REMAINING STEEL QUANTITY IN THE CONVERTER.

Info

Publication number
DE3881307D1
DE3881307D1 DE8888730182T DE3881307T DE3881307D1 DE 3881307 D1 DE3881307 D1 DE 3881307D1 DE 8888730182 T DE8888730182 T DE 8888730182T DE 3881307 T DE3881307 T DE 3881307T DE 3881307 D1 DE3881307 D1 DE 3881307D1
Authority
DE
Germany
Prior art keywords
converter
tapping hole
slags
reducing
content
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 - Fee Related
Application number
DE8888730182T
Other languages
German (de)
Inventor
Klaus Dr Ing Berner
Ulrich Dr Ing Eulenburg
Walter Dr Ing Zimnik
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.)
Preussag Stahl AG
Original Assignee
Preussag Stahl AG
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 Preussag Stahl AG filed Critical Preussag Stahl AG
Priority to DE8888730182T priority Critical patent/DE3881307D1/en
Application granted granted Critical
Publication of DE3881307D1 publication Critical patent/DE3881307D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4653—Tapholes; Opening or plugging thereof
    • 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
    • C21C5/44—Refractory linings

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

The cladding of a converter is formed with the shape of a trough around the tapping hole whose depth is equal to or greater than the critical height below which the whirl pool effect is produced in the steel. The surface of the trough lies basically in a plane perpendicular to the axis of the tapping hole and its area is approx. 10 times that of the tapping hole cross-section. Its cross-section is not rotationally symmetrical about the axis of the tapping hole.
DE8888730182T 1987-08-20 1988-08-12 DEVICE AND METHOD FOR REDUCING THE CONTENT OF SLAGS WITH A MINIMUM REMAINING STEEL QUANTITY IN THE CONVERTER. Expired - Fee Related DE3881307D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8888730182T DE3881307D1 (en) 1987-08-20 1988-08-12 DEVICE AND METHOD FOR REDUCING THE CONTENT OF SLAGS WITH A MINIMUM REMAINING STEEL QUANTITY IN THE CONVERTER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3728051 1987-08-20
DE8888730182T DE3881307D1 (en) 1987-08-20 1988-08-12 DEVICE AND METHOD FOR REDUCING THE CONTENT OF SLAGS WITH A MINIMUM REMAINING STEEL QUANTITY IN THE CONVERTER.

Publications (1)

Publication Number Publication Date
DE3881307D1 true DE3881307D1 (en) 1993-07-01

Family

ID=6334271

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888730182T Expired - Fee Related DE3881307D1 (en) 1987-08-20 1988-08-12 DEVICE AND METHOD FOR REDUCING THE CONTENT OF SLAGS WITH A MINIMUM REMAINING STEEL QUANTITY IN THE CONVERTER.

Country Status (3)

Country Link
EP (1) EP0305319B1 (en)
AT (1) ATE89866T1 (en)
DE (1) DE3881307D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19628339C1 (en) * 1996-07-13 1998-01-08 Didier Werke Ag converter
CN114737008A (en) * 2022-04-29 2022-07-12 湖南华菱涟源钢铁有限公司 Converter circular seam type gas-blowing slag-controlling tapping method

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2800405A (en) * 1954-01-09 1957-07-23 Voest Ag Process for the stiffening of slags upon liquid metal baths before pouring off the same
GB911696A (en) * 1959-07-13 1962-11-28 Arbed Converters for steel manufacture
AT258986B (en) * 1961-03-22 1967-12-27 Demag Ag Steel works converter for refining melts blown with lances
GB1032395A (en) * 1962-10-29 1966-06-08 Davy & United Eng Co Ltd Improvements in or relating to metallurgical converters
US4079868A (en) * 1976-11-01 1978-03-21 Dresser Industries, Inc. Castellated tundish nozzle
JPS5594430A (en) * 1979-01-11 1980-07-17 Kawasaki Steel Corp Separating and tapping device of molten metal and molten slag
US4431169A (en) * 1980-07-05 1984-02-14 Nisshin Steel Co., Ltd. Method and apparatus for preventing the inclusion of slag into the molten steel tapped from a converter
AT384242B (en) * 1982-09-07 1987-10-12 Radex Austria Ag Process for tapping or pouring metal melts
DE3321054C1 (en) * 1983-06-08 1984-12-06 Mannesmann AG, 4000 Düsseldorf Process and apparatus for the prevention of slag inclusions during the continuous casting of steel
DE8317437U1 (en) * 1983-06-15 1985-01-10 Mannesmann AG, 4000 Düsseldorf Metallurgical melting furnace
CH660701A5 (en) * 1983-08-18 1987-06-15 Metacon Ag DEVICE FOR DETECTING THE PRESENCE OF METALLIC MELT IN A FLOW CHANNEL OF A METALLURGICAL OVEN OR A SPRAYER.
GB2149699B (en) * 1983-11-18 1987-03-11 Uss Eng & Consult Method and apparatus for avoiding vortexing in a bottom pour vessel
DE3345015A1 (en) * 1983-12-13 1985-06-13 Krupp Stahl Ag, 4630 Bochum Process and apparatus for preventing the horizontal circulatory flow arising in the metal on emptying molten metals from a melt container with bottom tapping

Also Published As

Publication number Publication date
EP0305319A1 (en) 1989-03-01
ATE89866T1 (en) 1993-06-15
EP0305319B1 (en) 1993-05-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee