GB1203613A - A process and water cooled lance for the injection of gas into a molten metal bath by top-blowing - Google Patents

A process and water cooled lance for the injection of gas into a molten metal bath by top-blowing

Info

Publication number
GB1203613A
GB1203613A GB3756167A GB3756167A GB1203613A GB 1203613 A GB1203613 A GB 1203613A GB 3756167 A GB3756167 A GB 3756167A GB 3756167 A GB3756167 A GB 3756167A GB 1203613 A GB1203613 A GB 1203613A
Authority
GB
United Kingdom
Prior art keywords
oxygen
oxygen stream
lance
melt
blowing
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
GB3756167A
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.)
ARBED SA
Original Assignee
ARBED SA
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 to LU52104A priority Critical patent/LU52104A1/xx
Application filed by ARBED SA filed Critical ARBED SA
Publication of GB1203613A publication Critical patent/GB1203613A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28Manufacture of steel in the converter
    • C21C5/30Regulating or controlling the blowing
    • C21C5/32Blowing from above
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28Manufacture of steel in the converter
    • C21C5/42Constructional features of converters
    • C21C5/46Details or accessories
    • C21C5/4606Lances or injectors

Abstract

1,203,613. Oxygen lances. ARBED, ACIERIES REUNIES DE BURBACH-EICHDUDELANGE S.A. 15 Aug., 1967 [4 Oct., 1966], No. 37561/67. Heading F4B. [Also in Divisions C6-C7] A water cooled oxygen lance for a top blowing process, has a central conduit 1 through which a primary oxygen stream which may contain pulverulent or granular solid material in suspension, is provided, and a concentric outer conduit 2 for the supply of secondary oxygen. The primary oxygen stream which effects the decarburization of the melt is supplied through a long-necked converging-diverging member 11, 12, whilst the secondary oxygen stream, effecting dephosphorization of the melt, is supplied through semihelical channels 3 of semicircular cross-section machined into the outside of the member 12, to form a non-mingling giratory envelope around the primary oxygen stream. Both the angle of inclination of the channels 3, or the area of their cross-section may be varied throughout their length. Replacement of the members 11 or 12 may be effected while the lance is in an operating position, simply by breaking one weld 8, and removing the external reinforcing member 6 to obtain access to the members 11 or 12. Variation of the flow rate of the secondary oxygen stream allows variation of the spread of the gas jet issuing from the lance and so control over the dephosphorization of the melt independently of its decarburization.
GB3756167A 1966-10-04 1967-08-15 A process and water cooled lance for the injection of gas into a molten metal bath by top-blowing Expired GB1203613A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
LU52104A LU52104A1 (en) 1966-10-04 1966-10-04

Publications (1)

Publication Number Publication Date
GB1203613A true GB1203613A (en) 1970-08-26

Family

ID=19724989

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3756167A Expired GB1203613A (en) 1966-10-04 1967-08-15 A process and water cooled lance for the injection of gas into a molten metal bath by top-blowing

Country Status (7)

Country Link
US (1) US3567202A (en)
AT (1) AT300868B (en)
DE (1) DE1583208B2 (en)
FR (1) FR93038E (en)
GB (1) GB1203613A (en)
LU (1) LU52104A1 (en)
NL (1) NL6713416A (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3779534A (en) * 1969-07-08 1973-12-18 Creusot Loire Device for cooling a tuyere of a refining converter
IT997285B (en) * 1973-08-08 1975-12-30 Italsider Spa Improvements to nozzles for lance heads for blowing oxygen from above in refining processes
US3901445A (en) * 1974-11-08 1975-08-26 Pullman Inc Gas burner - lance construction
CA1103449A (en) * 1977-05-09 1981-06-23 William W. Berry Oxygen lance assembly
US4190238A (en) * 1978-05-11 1980-02-26 Stahlwerke Peine-Salzgitter Ag Lance head for a fining lance
DE2855499C2 (en) * 1978-12-22 1985-04-18 Kloeckner-Humboldt-Deutz Ag, 5000 Koeln, De
FR2540519A2 (en) * 1980-08-26 1984-08-10 Ugine Aciers Nozzle for injecting oxygen in a stabilised supersonic jet for decarburisation of molten metals, and, in particular, molten chromium
JPS59145717A (en) * 1983-02-04 1984-08-21 Ugine Aciers Oxygen jetting nozzle for jetting stable supersonic speed stream for decarbonizing cast iron, particularly chrome castiron
DE3231867A1 (en) * 1982-08-27 1984-03-01 Saar Metallwerke Gmbh DUAL CIRCUIT FOR FRESH METAL MELTING
US4512800A (en) * 1983-08-12 1985-04-23 Pfizer Inc. Wire injection apparatus
US4747772A (en) * 1986-02-19 1988-05-31 Ppg Industries, Inc. Burner design for melting glass batch and the like
US4671765A (en) * 1986-02-19 1987-06-09 Ppg Industries, Inc. Burner design for melting glass batch and the like
US4887962A (en) * 1988-02-17 1989-12-19 Shell Oil Company Partial combustion burner with spiral-flow cooled face
US4858538A (en) * 1988-06-16 1989-08-22 Shell Oil Company Partial combustion burner
US5377960A (en) * 1993-03-01 1995-01-03 Berry Metal Company Oxygen/carbon blowing lance assembly
JP4172270B2 (en) * 2000-07-05 2008-10-29 オープン ストック カンパニー ケミカル オートマティック デザイン ビュロウ (シーエーディービィ) Coaxial jet injection device
CN201233007Y (en) * 2007-08-06 2009-05-06 国际壳牌研究有限公司 Combustor
CN101363626B (en) 2007-08-06 2015-05-20 国际壳牌研究有限公司 Method of manufacturing a burner front face
CN101736165A (en) * 2008-11-04 2010-06-16 云南冶金集团股份有限公司 Swirling column nozzle, swirling column smelting equipment and swirling column smelting method
EP2216291A1 (en) * 2009-01-26 2010-08-11 Casale Chemicals S.A. Process and burner for production of syngas from hydrocarbons
RU2010132334A (en) * 2010-08-03 2012-02-10 Дженерал Электрик Компани (US) Fuel nozzle for turbine engine and cooling housing for cooling the external part of a cylindrical fuel nozzle of a turbine engine

Also Published As

Publication number Publication date
FR93038E (en) 1969-01-31
DE1583208B2 (en) 1973-08-23
NL6713416A (en) 1968-04-05
LU52104A1 (en) 1968-05-07
US3567202A (en) 1971-03-02
AT300868B (en) 1972-08-10
DE1583208A1 (en) 1972-03-09
LU52104A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee