GB951429A - Process and device for refining pig iron - Google Patents

Process and device for refining pig iron

Info

Publication number
GB951429A
GB951429A GB1280460A GB1280460A GB951429A GB 951429 A GB951429 A GB 951429A GB 1280460 A GB1280460 A GB 1280460A GB 1280460 A GB1280460 A GB 1280460A GB 951429 A GB951429 A GB 951429A
Authority
GB
United Kingdom
Prior art keywords
iron
preheated
mixture
liquid iron
converter
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
GB1280460A
Inventor
Zsigmond De Galocsy
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.)
Zsigmond De Galocsy I!i!
Original Assignee
Zsigmond De Galocsy I!i!
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 Zsigmond De Galocsy I!i! filed Critical Zsigmond De Galocsy I!i!
Publication of GB951429A publication Critical patent/GB951429A/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
    • C21C5/04—Manufacture of hearth-furnace steel, e.g. Siemens-Martin steel
    • 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • 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
    • 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
    • C21C5/34—Blowing through the bath
    • 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
    • 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

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)

Abstract

Iron is refined, e.g. pig iron in a converter or open hearth furnace, by means of a mixture of refining agents preheated to a temperature exceeding 1000 DEG C. and placed in intimate contact with the liquid iron so that the carbon therein is directly transformed into CO. The mixture, preferably air or gaseous oxygen and water vapour and/or CO2, may be bottom blown through the liquid iron in a converter and/or projected on to the liquid iron surface or slag layer, if any, at a velocity of at least 100 m./sec. Powdered substances which emit CO2 or H2O may be added to the mixture for preheating therewith, together with a powdered slagging agent such as lime, fluorspar or Fe-Mn. The refining agents may be preheated by escape furnace gases or by means of a burner, preferably a flame thrower in which cold or preheated fuel, e.g. charcoal dust, sawdust, coke-oven gas, liquefied petroleum gases or oils, is burnt with cold or preheated air or oxygen. The temperature of reaction in the liquid iron is preferably less than 1800 DEG C. except when scrap iron is added when it may be at least 2000 DEG C.
GB1280460A 1959-04-09 1960-04-11 Process and device for refining pig iron Expired GB951429A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR791573A FR1231179A (en) 1959-04-09 1959-04-09 Process and device for refining cast iron

Publications (1)

Publication Number Publication Date
GB951429A true GB951429A (en) 1964-03-04

Family

ID=8713434

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1280460A Expired GB951429A (en) 1959-04-09 1960-04-11 Process and device for refining pig iron

Country Status (3)

Country Link
AT (1) AT240889B (en)
FR (1) FR1231179A (en)
GB (1) GB951429A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3772000A (en) * 1971-11-23 1973-11-13 Columbia Gas Syst Method for converting solid ferrous metal to steel

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1277083A (en) * 1968-06-25 1972-06-07 Columbia Gas Syst Improvements in method for refining solid ferrous metal to steel
BE774886A (en) * 1971-11-03 1972-05-03 Centre Rech Metallurgique PROCESS FOR THE CONVERSION OF CAST IRON INTO STEEL.
US3898077A (en) * 1972-01-05 1975-08-05 Maximilianshuette Eisenwerk Process for refining metal melts
DE2949803C2 (en) * 1979-12-11 1986-10-09 Klöckner CRA Technologie GmbH, 4100 Duisburg Process for improving heat utilization in steelmaking from solid ferrous materials
DE3050258A1 (en) * 1980-02-01 1982-03-25 Sib Metal Ints METHOD OF MAKING STEEL

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3772000A (en) * 1971-11-23 1973-11-13 Columbia Gas Syst Method for converting solid ferrous metal to steel

Also Published As

Publication number Publication date
FR1231179A (en) 1960-09-27
AT240889B (en) 1965-06-25

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