FR2259907A1 - Electric furnace steel making - using two connected furnace bodies for alternate melting and preheating, to save energy - Google Patents

Electric furnace steel making - using two connected furnace bodies for alternate melting and preheating, to save energy

Info

Publication number
FR2259907A1
FR2259907A1 FR7503136A FR7503136A FR2259907A1 FR 2259907 A1 FR2259907 A1 FR 2259907A1 FR 7503136 A FR7503136 A FR 7503136A FR 7503136 A FR7503136 A FR 7503136A FR 2259907 A1 FR2259907 A1 FR 2259907A1
Authority
FR
France
Prior art keywords
bodies
steel making
gas
preheating
save energy
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.)
Withdrawn
Application number
FR7503136A
Other languages
French (fr)
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.)
British Steel Corp
Original Assignee
British Steel Corp
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 Steel Corp filed Critical British Steel Corp
Publication of FR2259907A1 publication Critical patent/FR2259907A1/en
Withdrawn legal-status Critical Current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
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C2007/0093—Duplex process; Two stage processes
    • 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)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Furnace Details (AREA)

Abstract

Two furnace bodies, connected by a channel, or gas duct, are used in this steel making process, and are employed alternately for (a) melting and refining; (b) charging with scrap and preheating; while one body is used for cycle (a), the hot exhaust gases travel through the gas duct into the second body where cycle (b) occurs, and both bodies can be tapped independently. Burners are pref. located in the gas duct to raise the the gas temp. during its travel from (a) to (b), and the pref. plant consists of two furnace bodies with interchangeable roofs and one interchangeable set of electrodes, with additional exhaust gas ducts located on the sides of the bodies to direct the flow of gas. Arrangement is used for steel making in direct current electric-arc furnaces, esp. using continuous operation. A substantial saving in energy and thus in cost is achieved; no handling of the preheated charge is required.
FR7503136A 1974-01-31 1975-01-31 Electric furnace steel making - using two connected furnace bodies for alternate melting and preheating, to save energy Withdrawn FR2259907A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB461574 1974-01-31

Publications (1)

Publication Number Publication Date
FR2259907A1 true FR2259907A1 (en) 1975-08-29

Family

ID=9780518

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7503136A Withdrawn FR2259907A1 (en) 1974-01-31 1975-01-31 Electric furnace steel making - using two connected furnace bodies for alternate melting and preheating, to save energy

Country Status (3)

Country Link
DE (1) DE2504106A1 (en)
ES (1) ES433419A1 (en)
FR (1) FR2259907A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520754A1 (en) * 1982-02-01 1983-08-05 Daido Steel Co Ltd PROCESS AND APPARATUS FOR THE PRODUCTION OF REACTOR IRON
EP0608591A1 (en) * 1993-01-25 1994-08-03 MANNESMANN Aktiengesellschaft Process and installation for running a double furnace plant

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3219984A1 (en) * 1981-05-30 1983-01-13 Daido Tokushuko K.K., Nagoya, Aichi Process for producing iron in a reactor and apparatus for carrying out the process
JPS59150006A (en) * 1983-02-16 1984-08-28 Daido Steel Co Ltd Method and apparatus for melting scrap

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520754A1 (en) * 1982-02-01 1983-08-05 Daido Steel Co Ltd PROCESS AND APPARATUS FOR THE PRODUCTION OF REACTOR IRON
EP0608591A1 (en) * 1993-01-25 1994-08-03 MANNESMANN Aktiengesellschaft Process and installation for running a double furnace plant
US5499264A (en) * 1993-01-25 1996-03-12 Mannesmann Aktiengesellschaft Process and arrangement for operating a double furnace installation

Also Published As

Publication number Publication date
DE2504106A1 (en) 1975-08-07
ES433419A1 (en) 1976-11-01

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Legal Events

Date Code Title Description
ST Notification of lapse