GB1422305A - Melting ferrous scrap - Google Patents

Melting ferrous scrap

Info

Publication number
GB1422305A
GB1422305A GB1821074A GB1821074A GB1422305A GB 1422305 A GB1422305 A GB 1422305A GB 1821074 A GB1821074 A GB 1821074A GB 1821074 A GB1821074 A GB 1821074A GB 1422305 A GB1422305 A GB 1422305A
Authority
GB
United Kingdom
Prior art keywords
fuel
oxygen
heating
scrap
april
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
GB1821074A
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.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
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 Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Publication of GB1422305A publication Critical patent/GB1422305A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C21B11/02—Making pig-iron other than in blast furnaces in low shaft furnaces or shaft furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents
    • C21B5/002—Heated electrically (plasma)
    • 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
    • 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
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
    • 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

1422305 Melting ferrous scrap CENTRE DE RECHERCHES METALLURGIQUES-CENTRUM VOOR RESEARCH IN DE METALLURGIE 25 April 1974 [25 April 1973] 18210/74 Heading C7D Scrap is melted by a burner supplied with oxygen and fluid hydrocarbon fuel in such proportions that a combustion gas is recovered which is reducing to iron and iron oxides. The flame temperature is preferably at least 2000‹C, achieved by pre-heating the oxygen to about 1000‹C, pre-heating the fuel, possibly sufficiently to precrack it, augmenting the fuel by addition of carbon and supplying sufficient additional oxygen to stoichiometrically convert the latter to carbon monoxide, or by auxiliary electrical heating, e.g. at a rate W=0.4R where W is the power input in kW and R is the fuel supply rate in kg/hr. The recovered combustion gas may be injected directly into a blast furnace as an auxiliary reducing agent.
GB1821074A 1973-04-25 1974-04-25 Melting ferrous scrap Expired GB1422305A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE6044130A BE798711A (en) 1973-04-25 1973-04-25 PROCESS AND APPARATUS FOR MELTING FERROUS MITRAILS

Publications (1)

Publication Number Publication Date
GB1422305A true GB1422305A (en) 1976-01-28

Family

ID=3874441

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1821074A Expired GB1422305A (en) 1973-04-25 1974-04-25 Melting ferrous scrap

Country Status (4)

Country Link
BE (1) BE798711A (en)
FR (1) FR2227330B3 (en)
GB (1) GB1422305A (en)
LU (1) LU69916A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5698010A (en) * 1994-11-02 1997-12-16 Nkk Corporation Scrap melting method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5698010A (en) * 1994-11-02 1997-12-16 Nkk Corporation Scrap melting method

Also Published As

Publication number Publication date
FR2227330B3 (en) 1977-03-04
BE798711A (en) 1973-08-16
LU69916A1 (en) 1974-08-06
FR2227330A1 (en) 1974-11-22

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee