GB1367732A - Process for making steel - Google Patents

Process for making steel

Info

Publication number
GB1367732A
GB1367732A GB1514572A GB1514572A GB1367732A GB 1367732 A GB1367732 A GB 1367732A GB 1514572 A GB1514572 A GB 1514572A GB 1514572 A GB1514572 A GB 1514572A GB 1367732 A GB1367732 A GB 1367732A
Authority
GB
United Kingdom
Prior art keywords
gas
furnace
dust
ore
reduction
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
GB1514572A
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.)
Fried Krupp AG
Original Assignee
Fried Krupp AG
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 Fried Krupp AG filed Critical Fried Krupp AG
Publication of GB1367732A publication Critical patent/GB1367732A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • 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
    • C21B13/125—By using plasma
    • 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
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

1367732 Steel production from ore dust FRIED KRUPP GmbH 30 March 1972 [3 April 1971] 15145/72 Heading C7D [Also in Divisions F4 and H5] Apparatus for making steel from finely ground rich ores utilizes a plasma burner 4 extending into a melting hearth 6. The ore is fed to a hopper 1, atomized and carried through a tubular fluidized bed in the transport stage 2 by reduction gas. The reduction gas is obtained from cracking natural gas and furnace waste gas in a cracking tube (35) Fig.2 (not shown) the ore dust being raised to the required reduction temperature as it travels through the stage 2, subsequently passing to the arc plasma burner 4. The enriched mixture of ore dust and gas enters through tangential inlet 51, Fig.7 passes through spiral channels 50 and exits from opening 48. The plasma jet is produced by cathode 49, anode 52, and purified furnace waste gas supplied to combustion chamber 53 through tangential inlet 54. In other embodiments, Figs. 4, 5 (not shown) different forms of fluidized bed are used, and the cracking tube (35) may be dispensed with. The molten metal produced in the hearth 6 is refined in furnace 10 by an O 2 lance 10', and carried into an alloying furnace 16 whose it is subjected to a N 2 blast from lance 20, whence the steel runs off to a continuous casting plant 21. CaC 2 from furnace 8 is used as a slag-former, and the gas from this furnace 8 (approximately 85% CO, 15% H 2 ) is fed to the atomizer 3 and hence to the transport stage 2. Reduction gas can also be produced from coal, oil or natural gas in a cracking tube by reactor waste heat from a nuclear reactor. Suction channels 12, 13 remove LD dust and gas, the dust being returned to the hopper and the gas recycled.
GB1514572A 1971-04-03 1972-03-30 Process for making steel Expired GB1367732A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2116445A DE2116445C3 (en) 1971-04-03 1971-04-03 Process for the production of steel

Publications (1)

Publication Number Publication Date
GB1367732A true GB1367732A (en) 1974-09-25

Family

ID=5803835

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1514572A Expired GB1367732A (en) 1971-04-03 1972-03-30 Process for making steel

Country Status (4)

Country Link
DE (1) DE2116445C3 (en)
FR (1) FR2132330B1 (en)
GB (1) GB1367732A (en)
ZA (1) ZA722269B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116656909A (en) * 2023-05-31 2023-08-29 北京科技大学 Flash one-step steelmaking device and method based on plasma arc

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002466A (en) * 1975-11-03 1977-01-11 Bethlehem Steel Corporation Method of reducing ores
DE2844056C3 (en) * 1978-10-10 1981-08-13 Mannesmann AG, 4000 Düsseldorf Method and device for the production of steel from iron ore dust by direct reduction
US4318736A (en) * 1979-10-10 1982-03-09 Mannesmann Demag Ag Method for manufacturing steel from iron ore dust by direct reduction
SE444956B (en) * 1980-06-10 1986-05-20 Skf Steel Eng Ab SET OUT OF METAL OXID-CONTAINING MATERIALS EXCAVING INGREDIENT EASY METALS OR CONCENTRATES OF THESE
DE102017220655A1 (en) * 2017-11-20 2019-05-23 Sms Group Gmbh Process for producing a metallic melt in an oven

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1478033A (en) * 1965-05-03 1967-04-21 Cockerill Ougree Sa Direct ore reduction process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116656909A (en) * 2023-05-31 2023-08-29 北京科技大学 Flash one-step steelmaking device and method based on plasma arc
CN116656909B (en) * 2023-05-31 2024-02-02 北京科技大学 Flash one-step steelmaking device and method based on plasma arc

Also Published As

Publication number Publication date
DE2116445B2 (en) 1973-02-22
ZA722269B (en) 1973-01-31
FR2132330A1 (en) 1972-11-17
DE2116445C3 (en) 1973-09-13
DE2116445A1 (en) 1972-10-26
FR2132330B1 (en) 1976-10-29

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees