PT93185A - METHOD AND APPARATUS FOR INJECTING GAS IN A METAL FUNDED - Google Patents

METHOD AND APPARATUS FOR INJECTING GAS IN A METAL FUNDED Download PDF

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Publication number
PT93185A
PT93185A PT93185A PT9318590A PT93185A PT 93185 A PT93185 A PT 93185A PT 93185 A PT93185 A PT 93185A PT 9318590 A PT9318590 A PT 9318590A PT 93185 A PT93185 A PT 93185A
Authority
PT
Portugal
Prior art keywords
disperser
porous material
molten metal
apertures
section
Prior art date
Application number
PT93185A
Other languages
Portuguese (pt)
Inventor
George S Mordue
Ronaldo E Gilbert
Original Assignee
Carborundum Co
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 Carborundum Co filed Critical Carborundum Co
Publication of PT93185A publication Critical patent/PT93185A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/05Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04Removing impurities by adding a treating agent
    • C21C7/072Treatment with gases

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Mold Materials And Core Materials (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Nozzles (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Claims (1)

9 R Β I ? I Ν Β Ιη0 A g Β Β S9 R Β I? I Ν Β Ιη0 A g Β Β S 1§- Processo para injectar gás num me|âl fundido, caracterizado pelo facto de compreender as fãses que consistem em se fazer passar o metal fundido através de um troço tubagem de passagem (24) que possui uma secção transversal pré-determinada; se proporcionar uma pluralidade de aberturas em torno da periferia troço cfe tubagem de passagem (24); e se injectar gás através dessas aberturas para dentro do metal na tubagem de passagem ( 24)· 2§- Processo de acordo com a reivindicação 1, caracterizado pelo facto de as aberturas serem definidas por meio de um dispersor (32) de ms terial poroso* 3â- Processo de acordo com a reivindicação 2, caracterizado pelo facto de o dispersor de metal poroso (32) tér a forma de um corpo poroso de material cerâmico ou de grafite* 4§- Processo para injectar gás em metal fundido, caracterizado pelo facto de compreender as fases que consistem em se instalar uma bomba (lG) para metal fundido a qual possui na saída uma tubagem de passagem (24) com uma secção transversal pré-determina-da; se fazer passar 0 metal fundido sob pressão através da tubagem de saída (24)5 se proporcionar uàta pluralidade de aberturas em torno da periferia da tubagem de passagem (24)5 e se injectar gás através dessas aberturas para dentro do metal fundido que passa através da tubagem de passagem (24). 101. A process for injecting gas into a molten metal, characterized in that it comprises fans consisting of passing the molten metal through a passageway section (24) having a predetermined cross-section; a plurality of openings are provided around the periphery of the passageway tubing (24); and if gas is injected through said apertures into the metal in the through pipe (24). 2. A method according to claim 1, characterized in that the apertures are defined by means of a porous material disperser (32) 3. A method according to claim 2, characterized in that the porous metal disperser (32) is in the form of a porous body of ceramic or graphite material. comprising the steps of installing a molten metal pump (1G) which has a predetermined cross-section through the outlet pipe (24); the molten metal is passed under pressure through the outlet pipe 24 to provide a plurality of apertures about the periphery of the through pipe 24 and to inject gas through these apertures into the molten metal passing through of the through pipe (24). 10 to as aberturas serem definidas por meio de um dispersor de material poroso (32). 6a- Prooesso de acordo com a reivindicação 5» caracterizado pelo facto de o dispersor de material poroso (32) ter a forma de um corpo poroso de material cerâmico ou de grafite. 7S- Processo de acordo oom a reivindicação 4> caracterizado pelo facto de as aberturas serem definidas por méio um dispersor de material poroso (32) e o seu diâmetro interno definir o diâmetro interno de uma parte do troço da tubagem de passagem (24)· 8a*Aparelho para injectar gás de metal fundido, caracterizado pelo fac to de compreender um troço de tubagem de passagem (24) através do qual pode escoar-se o metal fundido; um dispersor de material poroso (32) oolocado dentro do troço da tubagem (24) em volta da sua periferia (24)> e meios para injectar gás através do dispersor de material poroso (32) para dentro do metal fundido que se escoa através do troço de tubagem da passagem (24). 9ê- Aparelho de acordo com a reivindicação 8, caracterizado pelo facto de 0 troço da tubagem de passa-gem (24) ser definida por um acessório de tubagem 22, no qual se fixa uma camisa (26), de forma que a camisa [26) encaixa o dispersor material poroso (32) e mantém o dispersor de material poroso (32) no seu lugar dentro do acessório de tubagem (22). 10a- Aparelho de aoordo oom a reivindicação 8, caraoterizaào pelo facto de 0 diâmetro interno do dispersor de material poroso (32) definir 0 diâmetro interno de uma parte do troço da tubagem de passagem (24). Lisboa, l6 de Fevereiro de 1$90 0 Agente Oficial da Propriedade Industrial k- Cc ____ ftiMs 1.1 %\m ç.wmHe Agsnte Oficial da Prapriasisde Industrie· Rua Castilho, 201, 1000 U9&OA Othe apertures are defined by means of a disperser of porous material (32). A method according to claim 5, characterized in that the porous material disperser (32) is in the form of a porous body of ceramic or graphite material. 7. A process according to claim 4 > characterized in that the apertures are defined by means of a disperser of porous material (32) and its internal diameter defines the internal diameter of a portion of the passageway section (24). 8a. Apparatus for injecting molten metal gas, characterized in that it comprises a passageway section (24) through which the molten metal can flow; a disperser of porous material 32 disposed within the tubing section 24 about its periphery 24 (> and means for injecting gas through the disperser of porous material into the molten metal that flows through the tubing portion of the passageway. Apparatus according to claim 8, characterized in that the passageway section (24) is defined by a pipe fitting (22) in which a sleeve (26) is attached, so that the sleeve [ 26) engages the porous material disperser (32) and holds the porous material disperser (32) in place within the tubing fitting (22). 10. Apparatus according to claim 8, characterized in that the inner diameter of the porous material disperser (32) defines the inner diameter of a portion of the passageway section (24). Lisbon, February 16, 1 $ 90 0 Official Agent of Industrial Property k-Cc ____ ftiMs 1.1% \ m ç.wmHe Official Agency of Prapriasisde Industrie · Rua Castilho, 201, 1000 U9 & OA O
PT93185A 1989-02-17 1990-02-16 METHOD AND APPARATUS FOR INJECTING GAS IN A METAL FUNDED PT93185A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31289389A 1989-02-17 1989-02-17

Publications (1)

Publication Number Publication Date
PT93185A true PT93185A (en) 1991-10-15

Family

ID=23213482

Family Applications (1)

Application Number Title Priority Date Filing Date
PT93185A PT93185A (en) 1989-02-17 1990-02-16 METHOD AND APPARATUS FOR INJECTING GAS IN A METAL FUNDED

Country Status (10)

Country Link
EP (1) EP0385617A1 (en)
JP (1) JPH02290930A (en)
KR (1) KR900013092A (en)
AU (1) AU4988890A (en)
BR (1) BR9000732A (en)
CA (1) CA2010235A1 (en)
HU (1) HUT57277A (en)
IL (1) IL93349A0 (en)
NO (1) NO900760L (en)
PT (1) PT93185A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2652018B1 (en) * 1989-09-20 1994-03-25 Pechiney Rhenalu DEVICE FOR TREATING WITH GAS FROM A LARGE SURFACE ALUMINUM LIQUID BATH MAINTAINED IN A STATIONARY STATE IN AN OVEN.
FR2670839A1 (en) * 1990-12-21 1992-06-26 Cit Alcatel MACHINE, SUCH AS A VACUUM PUMP OR COMPRESSOR OF THE VOLUMETRIC OR DRIVE TYPE.
AUPN204895A0 (en) * 1995-03-29 1995-04-27 University Of Queensland, The Method of generation and dispersion of fine bubbles and apparatus therefor
CN108396109B (en) * 2017-02-05 2019-08-27 鞍钢股份有限公司 Method for generating dispersed bubbles in molten steel in steel ladle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2101000B1 (en) * 1970-08-04 1977-01-14 Activite Atom Avance
US4052199A (en) * 1975-07-21 1977-10-04 The Carborundum Company Gas injection method
CH641839A5 (en) * 1979-07-10 1984-03-15 Alusuisse DEVICE FOR INITIATING GASES IN METAL MELT.
US4351514A (en) * 1980-07-18 1982-09-28 Koch Fenton C Apparatus for purifying molten metal
IT1176428B (en) * 1984-07-18 1987-08-18 Radex Italiana Spa OUTLET SLEEVE IN A DEVICE TO CONTROL THE STEEL FLOW MELTED FROM A LADLE OR A BASKET

Also Published As

Publication number Publication date
CA2010235A1 (en) 1990-08-17
HU900835D0 (en) 1990-05-28
JPH02290930A (en) 1990-11-30
NO900760L (en) 1990-08-20
HUT57277A (en) 1991-11-28
KR900013092A (en) 1990-09-03
AU4988890A (en) 1990-08-23
IL93349A0 (en) 1990-11-29
NO900760D0 (en) 1990-02-16
BR9000732A (en) 1991-01-22
EP0385617A1 (en) 1990-09-05

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Effective date: 19951019