GB1241708A - Smelting metal in electric arc furnaces - Google Patents

Smelting metal in electric arc furnaces

Info

Publication number
GB1241708A
GB1241708A GB57027/68A GB5702768A GB1241708A GB 1241708 A GB1241708 A GB 1241708A GB 57027/68 A GB57027/68 A GB 57027/68A GB 5702768 A GB5702768 A GB 5702768A GB 1241708 A GB1241708 A GB 1241708A
Authority
GB
United Kingdom
Prior art keywords
carrier
melt
electric arc
gas
dec
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
GB57027/68A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik 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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1241708A publication Critical patent/GB1241708A/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
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
    • C21C5/5217—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace equipped with burners or devices for injecting gas, i.e. oxygen, or pulverulent materials into the furnace
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/08—Heating by electric discharge, e.g. arc discharge
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Details (AREA)

Abstract

1,241,708. Electric arc furnaces. BADISCHE ANILIN- & SODA-FABRIK A.G. 2 Dec., 1968 [2 Dec., 1967], No. 57027/68. Heading F4B. [Also in Divisions C6-C7 and H3-H5] Argon gas is blown into the steel melt 4 in the base 3 of an electric arc furnace 1, through refractory brick nozzles 7 located below the electrodes 5. The gas causes circulation and degassing of the melt and stabilization of the electric arcs 6. The gas may be used as a carrier for powdered calcium fluoride, sand, limestone, or sodium or barium compounds which cause lengthening of the electric arcs to increase the energy transferred to the melt in the initial process stages, and as a carrier for boric acid to shorten the arc length during the later refining stages. It may also act as a carrier for nucleating or alloying components. Further argon gas is supplied through ring tubes 12 surrounding the door openings 9 to prevent ingress of air.
GB57027/68A 1967-12-02 1968-12-02 Smelting metal in electric arc furnaces Expired GB1241708A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671583221 DE1583221A1 (en) 1967-12-02 1967-12-02 Process for treating molten metal in an electric arc furnace

Publications (1)

Publication Number Publication Date
GB1241708A true GB1241708A (en) 1971-08-04

Family

ID=5679447

Family Applications (1)

Application Number Title Priority Date Filing Date
GB57027/68A Expired GB1241708A (en) 1967-12-02 1968-12-02 Smelting metal in electric arc furnaces

Country Status (7)

Country Link
AT (1) AT294162B (en)
BE (1) BE724672A (en)
CH (1) CH507372A (en)
DE (1) DE1583221A1 (en)
FR (1) FR1598216A (en)
GB (1) GB1241708A (en)
SE (1) SE363845B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1311787C (en) * 1986-06-24 1992-12-22 Masahisa Tate Method of bottom blowing operation of a steel making electric furnace
DE3742861C1 (en) * 1987-12-17 1989-05-03 Thyssen Stahl Ag Metallurgical vessel

Also Published As

Publication number Publication date
BE724672A (en) 1969-05-29
DE1583221A1 (en) 1970-08-06
AT294162B (en) 1971-11-10
FR1598216A (en) 1970-07-06
SE363845B (en) 1974-02-04
CH507372A (en) 1971-05-15

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