GB1121741A - Preheating scrap with controlled oxidation - Google Patents

Preheating scrap with controlled oxidation

Info

Publication number
GB1121741A
GB1121741A GB4652565A GB4652565A GB1121741A GB 1121741 A GB1121741 A GB 1121741A GB 4652565 A GB4652565 A GB 4652565A GB 4652565 A GB4652565 A GB 4652565A GB 1121741 A GB1121741 A GB 1121741A
Authority
GB
United Kingdom
Prior art keywords
oxidation
container
scrap
give
controlled oxidation
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
GB4652565A
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.)
Armco Inc
Original Assignee
Armco Inc
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 Armco Inc filed Critical Armco Inc
Publication of GB1121741A publication Critical patent/GB1121741A/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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/56—Manufacture of steel by other methods
    • C21C5/562—Manufacture of steel by other methods starting from scrap
    • C21C5/565—Preheating of scrap
    • 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)
  • Manufacture And Refinement Of Metals (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

<PICT:1121741/C6-C7/1> Scrap iron is pre-heated to a temperature of 1800-2400 DEG F. in a refractory lined container 1 by burners 5 mounted in the cover 4 of the contained. Outlets 19 for the hot gases between the body of the container and the bottom which has hinged doors 2 are restricted so that the pressure within the container is above atmospheric. The fuel/air ratio of the burner supply is controlled to give an amount of oxidation calculated in accordance with the carbon content of the remaining portion of the charge fed to a steel making furnace. A layer of coal may be placed on top of the scrap metal to give a desired small amount of oxidation, and the waste gases may be recirculated to control the oxidation and the temperature attained by the scrap.
GB4652565A 1964-11-12 1965-11-03 Preheating scrap with controlled oxidation Expired GB1121741A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US41059264A 1964-11-12 1964-11-12

Publications (1)

Publication Number Publication Date
GB1121741A true GB1121741A (en) 1968-07-31

Family

ID=23625394

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4652565A Expired GB1121741A (en) 1964-11-12 1965-11-03 Preheating scrap with controlled oxidation

Country Status (4)

Country Link
BE (1) BE672169A (en)
ES (1) ES319457A1 (en)
GB (1) GB1121741A (en)
SE (1) SE318293B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2705364A1 (en) * 1993-05-13 1994-11-25 Clecim Sa A method of preheating and melting scrap in an electric furnace and a liquid metal production plant implementing the method.
CN108396100A (en) * 2018-03-19 2018-08-14 东北大学 A kind of horizontal continuity charging steel scrap preheating device of electric arc furnace and application method
CN114836591A (en) * 2022-05-05 2022-08-02 湖南华菱涟源钢铁有限公司 Method for top-blowing bottom-side-sucking composite baking of scrap steel in scrap steel tank

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2705364A1 (en) * 1993-05-13 1994-11-25 Clecim Sa A method of preheating and melting scrap in an electric furnace and a liquid metal production plant implementing the method.
EP0629830A1 (en) * 1993-05-13 1994-12-21 Clecim Installation for the production of liquid metal by scrap melting
US5533043A (en) * 1993-05-13 1996-07-02 Clecim Installation for producing liquid metal by melting scrap iron
CN108396100A (en) * 2018-03-19 2018-08-14 东北大学 A kind of horizontal continuity charging steel scrap preheating device of electric arc furnace and application method
CN114836591A (en) * 2022-05-05 2022-08-02 湖南华菱涟源钢铁有限公司 Method for top-blowing bottom-side-sucking composite baking of scrap steel in scrap steel tank
CN114836591B (en) * 2022-05-05 2023-09-22 湖南华菱涟源钢铁有限公司 Method for composite roasting of scrap steel by top blowing and bottom side suction of scrap steel tank

Also Published As

Publication number Publication date
SE318293B (en) 1969-12-08
ES319457A1 (en) 1966-05-01
BE672169A (en) 1966-03-01

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