GB1403544A - Method for injecting a gaseous reacting agent into a bath of molten metal and means for carrying out said method - Google Patents

Method for injecting a gaseous reacting agent into a bath of molten metal and means for carrying out said method

Info

Publication number
GB1403544A
GB1403544A GB3197972A GB3197972A GB1403544A GB 1403544 A GB1403544 A GB 1403544A GB 3197972 A GB3197972 A GB 3197972A GB 3197972 A GB3197972 A GB 3197972A GB 1403544 A GB1403544 A GB 1403544A
Authority
GB
United Kingdom
Prior art keywords
gas
orifice
bath
bubbles
july
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
GB3197972A
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.)
Sunbeam Oster Co Inc
Original Assignee
Allegheny Ludlum Industries Inc
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 Allegheny Ludlum Industries Inc filed Critical Allegheny Ludlum Industries Inc
Publication of GB1403544A publication Critical patent/GB1403544A/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
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/34—Blowing through the bath
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

1403544 Treating molten metals with gases ALLEGHENY LUDLUM INDUSTRIES INC 7 July 1972 [9 July 1971] 31979/72 Heading C7D The gas is injected into the bath as a stream of bubbles having a trajectory giving a residence time sufficient for completion of reaction while preventing contact of the bubbles with the refractory lining of the vessel. In a preferred embodiment the mass flow-rate of the gas is determined from the metallurgical characteristics of the system, and the gas is then injected through at least one orifice where where NRE is the Reynolds number and is not less than 10000, W is the gas mass flow-rate in 1b/sec Á is the gas viscosity in 1b/in-sec- and do is the diameter of the or each orifice, the injection pressure being selected to ensure that the gas will not contact the lining, possibly according to the Formulae where L v is the vertical penetration of the bubble in inches Lh is the horizontal penetration P 0 is the gas pressure in 1b/sq. in # is the angle of inclination of the orifice with respect to the vertical Injection may be through a submerged lance or through the side wall(s) of the vessel and may be horizontally to at least one-third the distance from the orifice to the opposite wall, and vertically to at least one-third the total bath depth.
GB3197972A 1971-07-09 1972-07-07 Method for injecting a gaseous reacting agent into a bath of molten metal and means for carrying out said method Expired GB1403544A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16104071A 1971-07-09 1971-07-09

Publications (1)

Publication Number Publication Date
GB1403544A true GB1403544A (en) 1975-08-28

Family

ID=22579551

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3197972A Expired GB1403544A (en) 1971-07-09 1972-07-07 Method for injecting a gaseous reacting agent into a bath of molten metal and means for carrying out said method

Country Status (12)

Country Link
US (1) US3791813A (en)
JP (1) JPS5610365B1 (en)
AT (1) AT327971B (en)
AU (1) AU466833B2 (en)
BE (1) BE786018A (en)
CA (1) CA959273A (en)
DE (1) DE2232221B2 (en)
ES (1) ES404697A1 (en)
FR (1) FR2145505B1 (en)
GB (1) GB1403544A (en)
IT (1) IT962662B (en)
SE (1) SE419655B (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3920448A (en) * 1972-10-03 1975-11-18 Maximilianshuette Eisenwerk Process and converter for refining liquid metals
US3972709A (en) * 1973-06-04 1976-08-03 Southwire Company Method for dispersing gas into a molten metal
JPS536293A (en) * 1976-07-07 1978-01-20 Osaka Seikou Kk Apparatus for oxidation and mixing of iron metallurgy slag
DE2834737A1 (en) * 1977-08-26 1979-03-08 British Steel Corp STEEL MANUFACTURING PROCESS
GR71466B (en) * 1978-03-06 1983-05-30 Alcan Res & Dev
DE3016984C2 (en) * 1980-05-02 1984-03-29 Goslarer Farbenwerke Dr. Hans Heubach GmbH & Co KG, 3394 Langelsheim Process and device for the one-step production of technical lead oxide
JPS59150009A (en) * 1983-02-12 1984-08-28 Daido Steel Co Ltd Refining method of steel
DE3577405D1 (en) * 1984-12-28 1990-06-07 Sumitomo Electric Industries METHOD FOR PRODUCING POLYCRYSTALS FROM SEMICONDUCTOR CONNECTIONS AND DEVICE FOR CARRYING OUT THE SAME.
AT390516B (en) * 1985-02-14 1990-05-25 Vasipari Kutato Fejleszto METHOD FOR CONTROLLING A HETEROGENIC DIFFUSION-KINETIC CONVERSION PROCESS IN A TURBULENT LIQUID FLOW
FR2594446A1 (en) * 1986-02-14 1987-08-21 Siderurgie Fse Inst Rech Cooled immersed lance for injecting gaseous product into a metal bath
FR2645456B1 (en) * 1989-04-11 1994-02-11 Air Liquide METHOD AND PLANT FOR TREATING A LIQUID WITH A GAS
CA2097648C (en) * 1992-06-12 1998-04-28 Ronald E. Gilbert Molton metal pump with vaned impeller and flow directing pumping chamber
US5634770A (en) * 1992-06-12 1997-06-03 Metaullics Systems Co., L.P. Molten metal pump with vaned impeller
US5397377A (en) * 1994-01-03 1995-03-14 Eckert; C. Edward Molten metal fluxing system
US5597289A (en) * 1995-03-07 1997-01-28 Thut; Bruno H. Dynamically balanced pump impeller
ES2121542B1 (en) * 1996-09-19 1999-09-16 Lin Yeun Junn "DEVICE TO EXTRACT GASES AND IMPURITIES FROM CAST ALUMINUM"
US5858059A (en) * 1997-03-24 1999-01-12 Molten Metal Technology, Inc. Method for injecting feed streams into a molten bath
AT405188B (en) * 1997-06-16 1999-06-25 Voest Alpine Ind Anlagen METHOD FOR PUTTING A RECYCLING MATERIAL INTO A MELTING BATH AND METALLURGICAL VESSEL FOR RECEIVING A MELTING BATH
US6019576A (en) * 1997-09-22 2000-02-01 Thut; Bruno H. Pumps for pumping molten metal with a stirring action
RU2208054C1 (en) * 2002-04-03 2003-07-10 Техком Импорт Экспорт Гмбх Method for mixing steel in ladle
US20180044761A1 (en) * 2015-03-10 2018-02-15 Honeywell International Inc. Method of purifying and casting materials
US10537958B2 (en) * 2016-08-15 2020-01-21 Illinois Tool Works Inc. System and method for controlling shielding gas flow in a welding device
RU2653743C1 (en) * 2017-03-20 2018-05-14 Публичное акционерное общество "Северсталь" (ПАО "Северсталь") Method of mixing steel in the metallurgical unit
US20190217391A1 (en) 2018-01-12 2019-07-18 Hammond Group, Inc. Methods for forming metal-containing particles in barton reactors and for retrofitting barton reactors
US12011786B2 (en) 2020-03-11 2024-06-18 Illinois Tool Works Inc. Smart manifolds for welding-type systems
US11938574B2 (en) 2021-01-22 2024-03-26 Illinois Tool Works Inc. Gas surge prevention using improved flow regulators in welding-type systems
US11801482B2 (en) 2021-02-17 2023-10-31 Illinois Tool Works Inc. Mixing fluids in welding-type equipment

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2871008A (en) * 1950-11-02 1959-01-27 Air Liquide Apparatus for gas flushing of molten metal
US2855293A (en) * 1955-03-21 1958-10-07 Air Liquide Method and apparatus for treating molten metal with oxygen
BE610265A (en) * 1960-11-18
BE635868A (en) * 1962-08-07
US3201104A (en) * 1962-08-21 1965-08-17 Walter V Berry Oxygen lance for subsurface use
SE307627B (en) * 1967-02-09 1969-01-13 J Oestberg
US3545960A (en) * 1967-04-25 1970-12-08 Union Carbide Corp Alloy addition process
US3574603A (en) * 1967-09-15 1971-04-13 Amsted Ind Inc Method for producing stainless steel
US3627294A (en) * 1970-03-25 1971-12-14 Atlantic Richfield Co Protection sleeve for dip tubes

Also Published As

Publication number Publication date
BE786018A (en) 1973-01-08
ATA568772A (en) 1975-05-15
ES404697A1 (en) 1975-06-16
SE419655B (en) 1981-08-17
FR2145505A1 (en) 1973-02-23
FR2145505B1 (en) 1977-04-01
DE2232221A1 (en) 1973-01-18
DE2232221B2 (en) 1979-12-06
JPS5610365B1 (en) 1981-03-07
AU4370572A (en) 1974-01-03
AU466833B2 (en) 1975-11-13
IT962662B (en) 1973-12-31
US3791813A (en) 1974-02-12
CA959273A (en) 1974-12-17
AT327971B (en) 1976-02-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee