GB961408A - Process and apparatus for the production of steel - Google Patents

Process and apparatus for the production of steel

Info

Publication number
GB961408A
GB961408A GB18612/61A GB1861261A GB961408A GB 961408 A GB961408 A GB 961408A GB 18612/61 A GB18612/61 A GB 18612/61A GB 1861261 A GB1861261 A GB 1861261A GB 961408 A GB961408 A GB 961408A
Authority
GB
United Kingdom
Prior art keywords
iron
furnace
electro
pig iron
mixture
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
GB18612/61A
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.)
Demag Elektrometallurgie GmbH
Original Assignee
Demag Elektrometallurgie GmbH
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 Elektrometallurgie GmbH filed Critical Demag Elektrometallurgie GmbH
Publication of GB961408A publication Critical patent/GB961408A/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
    • C21C5/5252—Manufacture of steel in electric furnaces in an electrically heated multi-chamber furnace, a combination of electric furnaces or an electric furnace arranged for associated working with a non electric 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
    • C21B13/12—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
    • 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

Abstract

<PICT:0961408/C6-C7/1> Steel is produced by feeding a partially reduced mixture of iron ore, carboniferous fuel such as coal, and flux e.g. lime pellets, in a heated condition into a first electro-furnace, smelting the mixture to produce a primary pig iron melt and an iron-rich slag, smelting the iron-rich slag produced with further carboniferous fuel such as coke in a second electro-furnace to produce a secondary pig iron melt, and refining both the pig iron melts in a refining furnace such as an electro- or a Siemens-Martin furnace. As shown, the initial mixture may be ignited by hot gas and air in a sintering device 1 to reduce to about 70% by weight of the original charge, and the partially reduced may be fed e.g. at 1200 DEG C. into the reaction chamber 4 of an electric furnace container 2, the iron-rich slag produced flowing over a water cooled ceramic dam 3 into the reaction chamber 5 for further reduction. Each chamber 4 and 5, forming the first and second electro-furnaces, may be provided with independently operated electrodes 6. Both the pig iron melts are tapped via tap-holes 7 to be refined in another electro-furnace 8, the iron-poor slag being withdrawn through tap-hole 9.
GB18612/61A 1960-06-14 1961-05-23 Process and apparatus for the production of steel Expired GB961408A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0033562 1960-06-14

Publications (1)

Publication Number Publication Date
GB961408A true GB961408A (en) 1964-06-24

Family

ID=7041794

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18612/61A Expired GB961408A (en) 1960-06-14 1961-05-23 Process and apparatus for the production of steel

Country Status (2)

Country Link
DE (1) DE1250467B (en)
GB (1) GB961408A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1800131B1 (en) * 1968-10-01 1971-05-27 Conzinc Riotinto Ltd Multi-zone melting process and multi-zone melting furnace for the continuous production of steel
DE2535207A1 (en) * 1975-08-07 1977-02-24 Demag Ag Steel mfr. from prereduced ore pellets or sponge - where charge flows horizontally through multi-electrode arc melting furnace

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2632707C3 (en) * 1976-07-21 1983-04-07 Ernst Dipl.-Ing. 4006 Erkrath Beiersdorf Charging system on electric arc furnaces for adding alloying agents and aggregates

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1800131B1 (en) * 1968-10-01 1971-05-27 Conzinc Riotinto Ltd Multi-zone melting process and multi-zone melting furnace for the continuous production of steel
DE2535207A1 (en) * 1975-08-07 1977-02-24 Demag Ag Steel mfr. from prereduced ore pellets or sponge - where charge flows horizontally through multi-electrode arc melting furnace

Also Published As

Publication number Publication date
DE1250467B (en)

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