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GB1364255A - Process for manufacturing steel - Google Patents

Process for manufacturing steel

Info

Publication number
GB1364255A
GB1364255A GB1665171A GB1665171A GB1364255A GB 1364255 A GB1364255 A GB 1364255A GB 1665171 A GB1665171 A GB 1665171A GB 1665171 A GB1665171 A GB 1665171A GB 1364255 A GB1364255 A GB 1364255A
Authority
GB
United Kingdom
Prior art keywords
lance
jet
charge
diameter
nozzles
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
GB1665171A
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.)
Centro Sperimentale Metallurgico SpA
Original Assignee
Centro Sperimentale Metallurgico SpA
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 Centro Sperimentale Metallurgico SpA filed Critical Centro Sperimentale Metallurgico SpA
Publication of GB1364255A publication Critical patent/GB1364255A/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
    • 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)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

1364255 Steel making in a rotary furnace CENTRO SPERIMENTALE METALLURGICO SpA 24 May 1971 [22 May 1970] 16651/71 Heading C7D Steel is made by top blowing a charge in a converter rotating about a vertical axis, the speed and/or direction of rotation being sharply variable. A secondary jet of combustion gas is introduced to burn up to 90% of the evolved carbon monoxide, the jet being so directed as not to impinge on either the bath surface or the refractory lining. The charge may be formed from liquid iron, pig or scrap, flux and possible iron ore, while the refining gas may contain inert gas up to twice the volume of the oxidizing gases; the ratio of internal volume of the converter in m<SP>3</SP>, to the charge weight in metric tons, may be 0À4 at most. In one embodiment the primary jet is displaced from the rotation axis by 10% to 40% of the internal diameter while the distance between lance head and metal surface is 18% to 65% of that diameter; the lance may have one or more nozzles. The secondary jet may be supplied through nozzles having a diameter of 1/50 to 1/150 of their spacing from the melt surface, measured along the nozzle axis, while the secondary lance may have an eccentricity varying from zero to that of the primary lance.
GB1665171A 1970-05-22 1971-05-24 Process for manufacturing steel Expired GB1364255A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5089470 1970-05-22

Publications (1)

Publication Number Publication Date
GB1364255A true GB1364255A (en) 1974-08-21

Family

ID=11274047

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1665171A Expired GB1364255A (en) 1970-05-22 1971-05-24 Process for manufacturing steel

Country Status (12)

Country Link
US (1) US3793001A (en)
JP (1) JPS5014964B1 (en)
AT (1) AT325080B (en)
BE (1) BE767385A (en)
BR (1) BR7103016D0 (en)
CA (1) CA946624A (en)
ES (1) ES391376A1 (en)
FR (1) FR2090211B1 (en)
GB (1) GB1364255A (en)
LU (1) LU63191A1 (en)
NL (1) NL159719B (en)
ZA (1) ZA713041B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3907549A (en) * 1972-08-29 1975-09-23 United States Steel Corp Method of refining in improved Q-BOP vessel
US4201572A (en) * 1978-08-02 1980-05-06 United States Steel Corporation Method for increasing the scrap melting capability of bottom blown processes
CA2185818A1 (en) * 1994-03-17 1995-09-21 Karel Hajmrle Low friction cobalt-based coatings for titanium

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2862811A (en) * 1954-09-14 1958-12-02 Stora Kopparbergs Bergslags Ab Continuous iron and steel making in a rotary vessel
US2828516A (en) * 1955-02-08 1958-04-01 Koppers Co Inc Ladle for casting metal
US3015554A (en) * 1957-04-18 1962-01-02 Rummel Roman Method and device for carrying out metallurgical processes, particularly air refining processes
US2977217A (en) * 1957-05-23 1961-03-28 Huettenwerk Oberhausen Ag Method for refining metal baths in rotary drum furnaces
US2959479A (en) * 1957-06-19 1960-11-08 Huettenwerk Oberhausen Ag Method of making steel low in nitrogen
US2978318A (en) * 1957-07-15 1961-04-04 Stora Kopparbergs Bergslags Ab Method of producing steel from pulverulent iron products rich in carbon
US3034885A (en) * 1957-08-10 1962-05-15 Kloeckner Werke Ag Method of refining pig iron and a fining vessel for performing the method
US2962277A (en) * 1958-05-15 1960-11-29 Gen Electric Apparatus for continuous process of steel making
GB943267A (en) * 1960-09-09 1963-12-04 Consett Iron Company Ltd Improved metallurgical process
FR1296596A (en) * 1961-03-24 1962-06-22 Lorraine Laminage Improvements made to the refining of cast iron
GB991579A (en) * 1961-10-12 1965-05-12 Stora Kopparbergs Bergslags Ab Process for producing pig iron in rotary furnace
GB979605A (en) * 1962-01-30 1965-01-06 Finanziaria Siderurgica Finsid An improved process and device for refining cast-iron for steel production
US3251681A (en) * 1962-11-06 1966-05-17 Amagasaki Iron & Steel Mfg Co Method of stirring a molten metal in a transfer ladle
US3271128A (en) * 1963-07-09 1966-09-06 Francis X Tartaron Prerefining blast furnace iron
GB1110054A (en) * 1964-05-08 1968-04-18 Stora Kopparbergs Bergslags Ab The production of liquid pig iron or steel
US3401034A (en) * 1965-12-15 1968-09-10 Meehanite Metal Corp Mixing ladle
US3753689A (en) * 1969-07-01 1973-08-21 Centro Speriment Metallurg Process for obtaining a rapid mixing of liquid metals and slag in order to accelerate some reactions between the two phases
US3689250A (en) * 1969-10-31 1972-09-05 Canada Steel Co Controlled slag flow in an electric arc furnace
US3672869A (en) * 1970-04-13 1972-06-27 Conrad F Niehaus Continuous metallurgical process

Also Published As

Publication number Publication date
LU63191A1 (en) 1971-09-01
BE767385A (en) 1971-10-18
ES391376A1 (en) 1974-10-01
FR2090211A1 (en) 1972-01-14
CA946624A (en) 1974-05-07
NL159719B (en) 1979-03-15
DE2124758B2 (en) 1976-04-08
BR7103016D0 (en) 1973-04-05
JPS5014964B1 (en) 1975-05-31
US3793001A (en) 1974-02-19
AT325080B (en) 1975-10-10
DE2124758A1 (en) 1971-12-02
FR2090211B1 (en) 1974-08-19
ZA713041B (en) 1972-01-26
NL7106878A (en) 1971-11-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee