GB1303213A - - Google Patents

Info

Publication number
GB1303213A
GB1303213A GB1303213DA GB1303213A GB 1303213 A GB1303213 A GB 1303213A GB 1303213D A GB1303213D A GB 1303213DA GB 1303213 A GB1303213 A GB 1303213A
Authority
GB
United Kingdom
Prior art keywords
coolant
lance
gas
slots
oxygen
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
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 filed Critical
Publication of GB1303213A publication Critical patent/GB1303213A/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
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

1303213 Blowing lances GOSUDARSTVENNY SOJUZNY INSTITUT PO PROEKTIROVANIJU AGREGATOV STALELITEINOGO I PROKATNOGO PROIZVODSTVADLYA CHERNOI METALLURGII 23 March 1971 7605/71 Heading F4B In a water-cooled blowing lance having passages between coaxial tubes 2 and 3, 3 and 4, and 4 and 5 for oxygen, shielding air or gas and coolant, the shielding gas is delivered through a helical slot or slots 11 encircling the lance. The slots 11 deliver gas at an angle of 45 degrees to the melt surface. After passing through bores 14 between the oxygen nozzles 8 coolant is returned through the central tube 2 to join coolant returning between tube 5 and the lance housing 1 to an outlet 16. The slot 11 may take the form of a double start helix. (For Figure see next page.)
GB1303213D 1971-03-23 1971-03-23 Expired GB1303213A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB760571 1971-03-23

Publications (1)

Publication Number Publication Date
GB1303213A true GB1303213A (en) 1973-01-17

Family

ID=9836339

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1303213D Expired GB1303213A (en) 1971-03-23 1971-03-23

Country Status (1)

Country Link
GB (1) GB1303213A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2327259A (en) * 1997-07-15 1999-01-20 British Steel Plc Steel making lances
WO2011085843A1 (en) * 2010-01-13 2011-07-21 Siemens Vai Metals Technologies Gmbh Partially gas-cooled oxygen blowing lance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2327259A (en) * 1997-07-15 1999-01-20 British Steel Plc Steel making lances
GB2327259B (en) * 1997-07-15 2001-06-20 British Steel Plc Steel making lances
WO2011085843A1 (en) * 2010-01-13 2011-07-21 Siemens Vai Metals Technologies Gmbh Partially gas-cooled oxygen blowing lance

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Legal Events

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