• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    I. S01SHO TO SUPPLY OXYGEN OF CO WITH SUPER SUNDAL SPEED in the process of decarburizing cast iron, mainly chromic, containing a confuser, a critical section of a cylindrical shape and a diffuser with a conical part, about 100% of which with its purpose, with a purpose, with a purpose, with a purpose, with a conical part, of which there is no reason to use a target with a target, with a purpose, with a purpose, with a conical part, of which there is no reason to use a purpose, with a purpose, with a purpose, with a purpose, with a conical part, of which there is a reason for drawing a pattern with a purpose, with a purpose, with a purpose, with a conical part, of which there is a reason for drawing a pattern with a purpose, with a purpose, with a purpose, with a conical part, about 100%, with the aim of it, with a purpose, with a purpose, with a purpose, with a conical part, about 100,000 with a purpose, with a purpose, with a purpose, with a purpose, with a purpose, with a conical part, of which, with its purpose, with a purpose, with a purpose, with a purpose, with a purpose, I. decarburization, the diffuser is made with an opening angle of the conical part 60-70. 2. Soplo by p. I, different a-. This is because the diffuser is made with an opening angle of the conical part 62-66, preferably 65. 3. Soplo on PP. I and 2, characterized in that behind the conical part in the direction of the gas jet, the diffuser is made in the form of a rotational surface, I symmetrical with respect to the axis of the nozzle, while forming its curve (O has a concavity with respect to the axis of the nozzle).
    公开号:SU1199203A3
    申请号:SU813323296
    申请日:1981-08-25
    公开日:1985-12-15
    发明作者:Бранказ Жан；Маризи Жорж
    申请人:Южин Асье (Фирма)；
    IPC主号:
    专利说明:

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    gjue.l The invention relates to metallurgy, more specifically to steelmaking, and can be used to organize the outflow of oxygen from a wagon during the decarburization of cast iron, mainly chromium. The closest in technical essence and the achieved result to the proposed is a nozzle for supplying oxygen at supersonic speed in the process of decarburizing cast iron, containing a confuser, a critical section of a cylindrical shape and a diffuser with a tapered part DJ. . However, the known nozzle is not sufficiently effective in the treatment of chromium cast iron. The aim of the invention is to increase the decarburization efficiency. This goal is achieved by the fact that in a nozzle for supplying oxygen at supersonic speeds during decarburization, iron, mainly chromic, containing a confuser, a critical section of cylindrical molds and diffusor with a conical part, is diffused with a cone-opening angle of 60-70. The diffuser is complete with an opening angle of the conical part 62-66, preferably 65. Behind the conical part, in the direction of movement of the gas jet, the diffuse is made in the form of a surface. The rotation of the NIN is symmetrical about the nozzle axis, while its forming curve has a concavity relative to the nozzle axis. FIG. 1 shows the proposed nozzle in FIG. 2 shows the change in the pressure of the oxygen jet depending on the opening angle of the conical part of the diffuser i in FIG. 3 shows the change in chromic yield depending on the opening angle of the conical part of the diffuser; FIG. 4 shows the change in the yield of iron, depending on the opening angle of the conical part of the diffuser; in fig. 5 - nozzle of optimal configuration. The nozzle contains a confuser 1, a critical section 2 of cylindrical shape, a diffuser made in the form of a truncated cone 3 with an opening angle of c. In the most preferred embodiment, beyond the tapered part, the diffuser is made in the form of a rotational surface 4, symmetrical about the axis of the nozzle, and its forming curve has a concavity relative to the axis of the nozzle. At point 5, the conical and curvilinear parts of the diffuser are tangential. At point 6, the tangent to the curved part of the diffuser is almost parallel to the axis of the nozzle. Curves 1, P and W in FIG. 2 are constructed respectively for a flow rate of 193, 181 and 172 nl / min. The use of a nozzle of the proposed configuration allows increasing e (1) efficiency and decarburization rate, as well as increasing the yield of chromium and iron. UCP / 7 of, ffla fit 65 f9 77 pi.-e g
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    权利要求:
    Claims (3)
    [1]
    1. NOZZLE FOR SUPPLYING OXYGEN WITH A SUPERSONIC SPEED in the process of decarburization of cast iron, mainly chrome, containing a confuser, a critical cross section of a cylindrical shape and a diffuser with a conical part, characterized in that, in order to increase the efficiency of decarburization, the diffuser is made with an opening angle of the conical part 60- 70 p .
    [2]
    2. Nozzle pop. 1, characterized by the fact that the diffuser is made with an opening angle of the conical part of 62-66 °, preferably 65 °.
    [3]
    3. The nozzle in paragraphs. 1 and 2, characterized in that behind the conical part in the direction of movement of the gas jet, the diffuser is made in the form of a surface of revolution symmetric about the axis of the nozzle, while its generating curve has a concavity relative to the axis of the nozzle, fiё-1
    SU ..... 1199203
    类似技术:
    公开号 | 公开日 | 专利标题
    GB1272229A|1972-04-26|Improvements in and relating to the treatment of molten material
    SU1199203A3|1985-12-15|Nozzle for supplyin oxygen at supersonic speed
    US3737106A|1973-06-05|360{20 {11 spray nozzle
    JPH0826388B2|1996-03-13|Oxygen blowing lance
    SE8106036L|1982-04-14|LANCE FOR BLASHING ACID
    CA1338688C|1996-11-05|Oxygen injection lance
    ES8101648A1|1980-12-16|Converter steelmaking process.
    AU644486B2|1993-12-09|Top blowing refining lance
    US3992194A|1976-11-16|Method and apparatus for use in the treatment of metals in the liquid state
    FR2470632B1|1984-02-10|
    JPS63303014A|1988-12-09|Apparatus for purifying molten metal
    US3593976A|1971-07-20|Apparatus for carrying out spray steelmaking processes
    FR2284677A1|1976-04-09|Granulating and transporting molten blast furnace slag - by pouring slag into chamber supplied with jets of water
    GB1350115A|1974-04-18|Method of introducing auxiliary fuels to blast furnaces andtuyere for use in this method
    GB1470190A|1977-04-14|Nozzle for a lance head
    GB1444026A|1976-07-28|Method of clarifying impure water
    SU1028486A2|1983-07-15|Apparatus for surface-strengthening of parts by a stream of balls
    JPH04145229A|1992-05-19|Gas vortex flow generator
    RU2036020C1|1995-05-27|Air-atomizing burner
    JPS5713106A|1982-01-23|Method for controlling flow rate at tuyere
    RU2111262C1|1998-05-20|Method of reconditioning of converter lining in hot state and device for its embodiment
    SU678069A1|1979-08-05|Blast furnace charge distributor
    KR840007751A|1984-12-10|Decarburization nozzle of cast iron
    SU1235919A1|1986-06-07|Tuyere
    SU827854A1|1981-05-07|Gas ejector
    同族专利:
    公开号 | 公开日
    ZW20581A1|1981-12-09|
    CA1177642A|1984-11-13|
    TR21290A|1984-02-28|
    FI812612L|1982-02-27|
    DE3164731D1|1984-08-16|
    ES268630Y|1983-12-01|
    ZA815877B|1982-08-25|
    BR8105366A|1982-05-11|
    AT8413T|1984-07-15|
    KR830006442A|1983-09-24|
    JPS5952202B2|1984-12-18|
    US4455166A|1984-06-19|
    IN154747B|1984-12-15|
    FI66432C|1984-10-10|
    FR2489368A1|1982-03-05|
    AU7449181A|1982-03-04|
    JPS5773113A|1982-05-07|
    YU205781A|1984-02-29|
    EP0046721B1|1984-07-11|
    NO812881L|1982-03-01|
    FI66432B|1984-06-29|
    EP0046721A1|1982-03-03|
    ES268630U|1983-05-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2175160A|1935-07-02|1939-10-03|Linde Air Prod Co|Nozzle for cutting blowpipes|
    GB800833A|1956-05-29|1958-09-03|British Oxygen Co Ltd|Nozzles|
    FR1476043A|1966-03-30|1967-04-07|Oxygen injection lance with tubes protruding outside|
    US3559974A|1969-03-03|1971-02-02|Berry Metal Co|Oxygen lances having a high resistance to deterioration and multipiece nozzle heads therefor|
    US3876190A|1969-06-25|1975-04-08|Commw Ind Gases|Method and apparatus for feeding particulate materials to furnaces and the like|
    IT997285B|1973-08-08|1975-12-30|Italsider Spa|IMPROVEMENTS TO THE NOZZLES FOR THE LANCE HEADS FOR BLOWING OXYGEN FROM ABOVE IN THE REFINING PROCESSES|
    FR2474531B1|1980-01-24|1986-08-14|Ugine Gueugnon Sa|PROCESS FOR DECARBURIZING CHROME FOUNDS FOR THE PREPARATION OF STAINLESS STEELS BY JET OF SUPERSONIC OXYGEN|USH1624H|1993-06-02|1997-01-07|The United States Of America As Represented By The Secretary Of The Navy|Stabilizer for submerged gaseous jets in liquids|
    US5782414A|1995-06-26|1998-07-21|Nathenson; Richard D.|Contoured supersonic nozzle|
    US5647201A|1995-08-02|1997-07-15|Trw Inc.|Cavitating venturi for low reynolds number flows|
    AT408348B|1999-12-20|2001-10-25|Voest Alpine Ind Anlagen|METHOD AND DEVICE FOR SUPPLYING A GAS IN A METALLURGICAL VESSEL|
    US7182279B2|2004-10-28|2007-02-27|National Cheng Kung University|Atomizer for atomizing molten metal|
    ITMI20050241A1|2005-02-18|2006-08-19|Techint Spa|MULTIFUNCTIONAL INJECTOR AND ITS COMBUSTION PROCEDURE FOR METALLURGICAL TREATMENT IN AN ELECTRIC ARC FURNACE|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8018846A|FR2489368A1|1980-08-26|1980-08-26|NEW NOZZLE FOR OXYGEN INJECTION LAUNCHER FOR DECARBURATION OF FONTES AND APPLICATION TO DECARBURATION OF CHROMIUM WAFERS|
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