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ES436098A1 - Process for the smelting of steel - Google Patents

Process for the smelting of steel

Info

Publication number
ES436098A1
ES436098A1 ES436098A ES436098A ES436098A1 ES 436098 A1 ES436098 A1 ES 436098A1 ES 436098 A ES436098 A ES 436098A ES 436098 A ES436098 A ES 436098A ES 436098 A1 ES436098 A1 ES 436098A1
Authority
ES
Spain
Prior art keywords
days
procedure
maintained
corresponds
production
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
ES436098A
Other languages
Spanish (es)
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.)
Mannesmann Demag AG
Original Assignee
Demag 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 Demag AG filed Critical Demag AG
Publication of ES436098A1 publication Critical patent/ES436098A1/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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0046—Making spongy iron or liquid steel, by direct processes making metallised agglomerates or iron oxide
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/12—Making spongy iron or liquid steel, by direct processes in electric furnaces
    • 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
    • C21C1/02—Dephosphorising or desulfurising
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
    • F27B3/02—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces of single-chamber fixed-hearth type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
    • F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces heated electrically, with or without any other source of heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
    • F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces heated electrically, with or without any other source of heat
    • F27B3/085—Arc furnaces
    • 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)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Procedure for melting steel in closed electric resistance furnaces using a slag layer that covers the molten metal, into which the electrodes are immersed, characterized in that the following measures are adapted for the continuous development of the procedure: a) An oxidation melt filler is used, that is, a refining melt filler, such as iron sponge and iron ore, previously reduced minerals or agglomerates such as nodules, briquettes or the like; b) A thick slag cover is maintained with a decarburizing, dephosphorizing, and desulfurizing effect, whose thickness is 250 to 1,500 mm and/or corresponds to a production of 1 to 10 days; c) A deep metallic bath is maintained, the quantity of which corresponds to a production of from 5 hours to 2 days. (Machine-translation by Google Translate, not legally binding)
ES436098A 1974-04-02 1975-03-26 Process for the smelting of steel Expired ES436098A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2415967A DE2415967A1 (en) 1974-04-02 1974-04-02 METHOD OF MELTING STEEL

Publications (1)

Publication Number Publication Date
ES436098A1 true ES436098A1 (en) 1977-01-01

Family

ID=5911947

Family Applications (1)

Application Number Title Priority Date Filing Date
ES436098A Expired ES436098A1 (en) 1974-04-02 1975-03-26 Process for the smelting of steel

Country Status (9)

Country Link
JP (1) JPS50134912A (en)
CA (1) CA1081968A (en)
DE (1) DE2415967A1 (en)
ES (1) ES436098A1 (en)
FR (1) FR2265864B3 (en)
GB (1) GB1502992A (en)
IT (1) IT1034650B (en)
NO (1) NO751095L (en)
ZA (1) ZA752046B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2608320C2 (en) * 1976-02-28 1978-12-07 Demag Ag METHOD FOR CONTINUOUSLY MELTING STEEL WITH A HIGH Purity
ZA935072B (en) * 1992-08-11 1994-02-07 Mintek The production of high titania slag from ilmenite
WO2002070760A1 (en) * 2001-03-05 2002-09-12 Anglo Operations Limited A furnace and a method of controlling a furnace
US6689182B2 (en) * 2001-10-01 2004-02-10 Kobe Steel, Ltd. Method and device for producing molten iron
JP5166805B2 (en) 2007-09-19 2013-03-21 株式会社神戸製鋼所 Method for producing molten iron by arc heating
JP7094259B2 (en) 2019-11-21 2022-07-01 株式会社神戸製鋼所 Manufacturing method of molten steel

Also Published As

Publication number Publication date
CA1081968A (en) 1980-07-22
DE2415967A1 (en) 1975-10-09
GB1502992A (en) 1978-03-08
FR2265864A1 (en) 1975-10-24
JPS50134912A (en) 1975-10-25
NO751095L (en) 1975-10-03
IT1034650B (en) 1979-10-10
ZA752046B (en) 1976-03-31
FR2265864B3 (en) 1977-12-16

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