GB1014803A - Treatment of molten ferrous metal with oxygen and solid refining agents - Google Patents

Treatment of molten ferrous metal with oxygen and solid refining agents

Info

Publication number
GB1014803A
GB1014803A GB724362A GB724362A GB1014803A GB 1014803 A GB1014803 A GB 1014803A GB 724362 A GB724362 A GB 724362A GB 724362 A GB724362 A GB 724362A GB 1014803 A GB1014803 A GB 1014803A
Authority
GB
United Kingdom
Prior art keywords
tube
oxygen
solid
nozzle
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.)
Expired
Application number
GB724362A
Inventor
Leonard Douglas Lamb
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.)
BOC Group Ltd
Original Assignee
British Oxigen Ltd
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 British Oxigen Ltd filed Critical British Oxigen Ltd
Priority to GB724362A priority Critical patent/GB1014803A/en
Publication of GB1014803A publication Critical patent/GB1014803A/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
    • 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
    • C21C5/32—Blowing from above
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Abstract

<PICT:1014803/C6-C7/1> In a process for the treatment of molten ferrous metal with oxygen and solid reagents the latter in the form of powder are fed through the inner tube of a concentric double lance, while a high pressure stream of oxygen is fed through the other tube, which terminates in a nozzle so shaped that mixing of the powder with the oxygen stream occurs before the latter contacts the metal surface. Solid materials used include lime, fluorspar, iron ore, desulphurizing agents, alloying elements or carbon, and the feed may be assisted by a flow of atmospheric air. The process may also be applied to mixed charges of molten metal and solid scrap, the latter melting as the reaction proceeds. A suitable apparatus illustrated comprises a tube 10 attached to the base of closed hopper 11, the bottom 12 of which is of porous material to permit the influx of air. Tube 10 is surrounded by tube 13 through which oxygen is supplied by inlet 14 and which is restricted in diameter at its lower end 15 to form annular nozzle 16. Tube 10 is tapered at its lower end whereby nozzle 16 produces sub-atmospheric pressure at the end of tube 10.
GB724362A 1962-02-23 1962-02-23 Treatment of molten ferrous metal with oxygen and solid refining agents Expired GB1014803A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB724362A GB1014803A (en) 1962-02-23 1962-02-23 Treatment of molten ferrous metal with oxygen and solid refining agents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB724362A GB1014803A (en) 1962-02-23 1962-02-23 Treatment of molten ferrous metal with oxygen and solid refining agents

Publications (1)

Publication Number Publication Date
GB1014803A true GB1014803A (en) 1965-12-31

Family

ID=9829388

Family Applications (1)

Application Number Title Priority Date Filing Date
GB724362A Expired GB1014803A (en) 1962-02-23 1962-02-23 Treatment of molten ferrous metal with oxygen and solid refining agents

Country Status (1)

Country Link
GB (1) GB1014803A (en)

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