ES221505A1 - Method of injecting fluidized powders for metallurgical treatment - Google Patents

Method of injecting fluidized powders for metallurgical treatment

Info

Publication number
ES221505A1
ES221505A1 ES0221505A ES221505A ES221505A1 ES 221505 A1 ES221505 A1 ES 221505A1 ES 0221505 A ES0221505 A ES 0221505A ES 221505 A ES221505 A ES 221505A ES 221505 A1 ES221505 A1 ES 221505A1
Authority
ES
Spain
Prior art keywords
powder
gas
bath
pressure
jet
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
ES0221505A
Other languages
Spanish (es)
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of ES221505A1 publication Critical patent/ES221505A1/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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • 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
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
    • C21C5/5217—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace equipped with burners or devices for injecting gas, i.e. oxygen, or pulverulent materials into the furnace
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

Method of introducing a powdery material into a bath of molten metal, which includes sucking the powder from a closed storage space, fed with a carrier gas, and conducting the resulting stream of powder-laden gas below the surface of said bath, characterized in that the proportion at which the powder is introduced into the metal bath is varied independently of the gas flow rate by supplying said jet with a fixed gas pressure and adjusting the gas pressure in the storage space of the powder to a selected value lower than the pressure of the gas supplied to said jet. (Machine-translation by Google Translate, not legally binding)
ES0221505A 1954-05-03 1955-04-30 Method of injecting fluidized powders for metallurgical treatment Expired ES221505A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US427308A US2803533A (en) 1954-05-03 1954-05-03 Method of injecting fluidized powders for metallurgical treatment

Publications (1)

Publication Number Publication Date
ES221505A1 true ES221505A1 (en) 1955-10-16

Family

ID=23694311

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0221505A Expired ES221505A1 (en) 1954-05-03 1955-04-30 Method of injecting fluidized powders for metallurgical treatment

Country Status (2)

Country Link
US (1) US2803533A (en)
ES (1) ES221505A1 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3001864A (en) * 1952-12-09 1961-09-26 Air Reduction Method for introducing solid materials into molten metal
US3078527A (en) * 1959-09-17 1963-02-26 Continental Can Co Production of ingots with filled core channels
US3080228A (en) * 1960-08-03 1963-03-05 Blackstone Corp Process for the production of cast iron
US3224051A (en) * 1962-01-31 1965-12-21 Brown Fintube Co Method of introducing addition agent into a melt
US3199975A (en) * 1962-10-30 1965-08-10 Chemetron Corp Desulfurization of iron
US3223521A (en) * 1963-02-18 1965-12-14 Kaiser Ind Corp Methods for increasing the proportion of scrap metal charged to basic oxygen conversion processes
US3285739A (en) * 1964-01-06 1966-11-15 Petrocarb Inc Process for producing nodular cast iron
BE798224A (en) * 1973-08-24 1973-10-15 Inst Chernoi Metallurgii PROCESS FOR TREATMENT OF LIQUID CAST IRON BY MAGNESIUM IN CAPACITIES AND DEVICE FOR CARRYING OUT IT
US3929464A (en) * 1973-08-31 1975-12-30 Union Carbide Corp Desulfurization of molten ferrous metals
US3955966A (en) * 1974-03-06 1976-05-11 August Thyssen-Hutte Ag Method for dispensing a fluidizable solid from a pressure vessel
US4067730A (en) * 1974-04-20 1978-01-10 Thyssen Niederrhein Ag Hutten-Und Walzwerke Process for the production of steel with increased ductility
DE2419070B2 (en) * 1974-04-20 1976-03-04 Thyssen Niederrhein AG Hütten- und Walzwerke, 4200 Oberhausen METHOD FOR PRODUCING STEEL WITH INCREASED TOUGH PROPERTIES
US4135920A (en) * 1976-07-06 1979-01-23 Barbakadze Dzhondo F Method of introducing powdered material into molten metal
US4081270A (en) * 1977-04-11 1978-03-28 Union Carbide Corporation Renitrogenation of basic-oxygen steels during decarburization
DE2822791C2 (en) * 1977-05-26 1983-12-08 Gruzinskij politechničeskij institut imeni V.I. Lenina, Tbilisi Device for introducing powdered reagents into a molten metal by means of a carrier gas stream
US4232854A (en) * 1978-05-26 1980-11-11 Barbakadze Dzhondo F Method of introducing powdered reagents into molten metals and apparatus for effecting same
USRE31676E (en) * 1982-09-29 1984-09-18 Thyssen Aktiengesellschaft vorm August Thyssen-Hutte AG Method and apparatus for dispensing a fluidizable solid from a pressure vessel
CH662129A5 (en) * 1984-08-08 1987-09-15 Fischer Ag Georg METHOD AND DEVICE FOR INCORPORATING ADDITIVES, ESPECIALLY INOCULATORS, INTO A METAL BATH.
FR2588571B1 (en) * 1985-10-15 1992-05-22 Pechiney Electrometallurgie DEVICE AND METHOD FOR CONTINUOUS LOW PRESSURE INJECTION OF A POWDER ADDITIVE INTO A MOLTEN METAL STREAM

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1587600A (en) * 1923-12-04 1926-06-08 Mielsen Otto Method of introducing additional agents into matallurgical baths
US1968917A (en) * 1933-06-30 1934-08-07 Vassily V Soldatoff Process of making steel
US2181095A (en) * 1936-08-19 1939-11-21 Nesaloy Products Inc Heating torch
US2502259A (en) * 1946-12-12 1950-03-28 Air Reduction Method of eliminating carbon from and controlling the temperature of molten steel
GB622419A (en) * 1947-03-21 1949-05-02 Linde Air Prod Co Desulphurization of molten ferrous metal
US2485760A (en) * 1947-03-22 1949-10-25 Int Nickel Co Cast ferrous alloy
US2577837A (en) * 1949-10-29 1951-12-11 Lothar R Zifferer Introduction of magnesium into molten iron
US2577764A (en) * 1949-11-04 1951-12-11 Air Reduction Desulfurization of ferrous metals
US2692196A (en) * 1951-12-07 1954-10-19 Air Reduction Method and apparatus for treating molten metal

Also Published As

Publication number Publication date
US2803533A (en) 1957-08-20

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