GB773191A - Improvements relating to furnaces and methods for the production of steel - Google Patents

Improvements relating to furnaces and methods for the production of steel

Info

Publication number
GB773191A
GB773191A GB2134553A GB2134553A GB773191A GB 773191 A GB773191 A GB 773191A GB 2134553 A GB2134553 A GB 2134553A GB 2134553 A GB2134553 A GB 2134553A GB 773191 A GB773191 A GB 773191A
Authority
GB
United Kingdom
Prior art keywords
scrap
furnace
steel
pig iron
molten
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
GB2134553A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB773191A publication Critical patent/GB773191A/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
    • C21C5/56—Manufacture of steel by other methods
    • C21C5/562—Manufacture of steel by other methods starting from scrap
    • 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

Abstract

Production in a steel plant, particularly in the manufacture of steel by the basic open hearth scrap and hot metal process, is increased by first melting the scrap in an open-topped shaft furnace (see Group XII) into which the unprepared scrap is continuously or intermittently dumped, tapping off superheated molten scrap into a ladle, and pouring it into the steel making furnace either before, with, or after the molten pig iron. A typical procedure in which the furnace charge comprises 60 per cent pig iron and 40 per cent scrap is to feed lime or limestone p and iron ore into the furnace, followed by the molten pig iron. Some oxidation takes place, the foaming slag being retained in the furnace, and if a low carbon product is desired, the carbon content is further reduced by ore additions, or by applying oxygen jets to the bath. The superheated molten scrap is then added, completing the reactions, and displacing slag, and, if a low phosphorus content is required, quicklime is added to the bath. The time required to make a heat of steel including fettling time, is 4-6 hours.
GB2134553A 1952-08-22 1953-07-31 Improvements relating to furnaces and methods for the production of steel Expired GB773191A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US773191XA 1952-08-22 1952-08-22

Publications (1)

Publication Number Publication Date
GB773191A true GB773191A (en) 1957-04-24

Family

ID=22137374

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2134553A Expired GB773191A (en) 1952-08-22 1953-07-31 Improvements relating to furnaces and methods for the production of steel

Country Status (1)

Country Link
GB (1) GB773191A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3982926A (en) * 1973-05-26 1976-09-28 Klockner-Werke Ag Method for melting charges
CN103333981A (en) * 2013-06-09 2013-10-02 武汉钢铁(集团)公司 Method for smelting high-silicon molten iron by using limestone as slagging material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3982926A (en) * 1973-05-26 1976-09-28 Klockner-Werke Ag Method for melting charges
CN103333981A (en) * 2013-06-09 2013-10-02 武汉钢铁(集团)公司 Method for smelting high-silicon molten iron by using limestone as slagging material
CN103333981B (en) * 2013-06-09 2014-09-17 武汉钢铁(集团)公司 Method for smelting high-silicon molten iron by using limestone as slagging material

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