• 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:

    公开号:SU871725A3
    申请号:SU792822599
    申请日:1979-10-11
    公开日:1981-10-07
    发明作者:Ейсн Манфред
    申请人:Фоест-Альпине Аг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to metallurgy. A device for closing an outlet of a metallurgical vessel is known, which contains an overlapping element inserted into an outlet with a gap, with a gas supply pipeline, while the overlapping element is fixed to the casing of the outer wall. A disadvantage of the known device is its low service life. The purpose of the invention is to increase the service life of the device. The goal is achieved by the fact that the device is for. closing the outlet of the metallurgical tank containing a blocking element with a gas supply pipe inserted into the outlet with a gap, while the blocking element is fixed on the casing of the outer wall of the container, provided with a hollow body mounted on the container casing and made in the form of an annular plate located with a gap relative to the outer surface of the overlapping element, with the second case being provided with inlet and outlet lines for the refrigerant. Figure 1 shows a refining ladle during metal casting into a casting ladle; figure 2 - the proposed device. In the refining ladle 1 there is a steel melt 2 with a layer of slag 3 floating on it. The steel flows out. through the outlet 4 to the under-expansion armor 5. To close the outlet, serve as a locking element 7 fixed to the pivoting arm b, to which the pipeline C is connected to supply compressed gas. The swivel arm b is hinged to the outer casing 9 of the bucket 1 and can be rotated by means of a hydraulic cylinder 10 which is actuated in both directions, which is also hinged to the outer casing of the bucket. Overlapping, element 7 has an outer cone 11, narrowing to the inlet. The outlet 4 is stepwise, expanding outwardly, with a part 12 of the outlet 4, having a diameter of 13, formed
    the lining 14 of the bucket 1. Part 15 of the outlet 4, having a diameter of 16 (diameter 16 greater than diameter 13 a), is bounded by a hollow body 17, made in the form of an annular plate and fixed on the flange 18 of the outer casing 9 of the bucket 1. Through the hollow space 19 of the hollow the housing 17 flows through the cooling fluid, with the pipeline 20 being the inlet and the pipeline 21 diverting.
    The inner ring 22 on the outside of the bucket spans circumferentially with a gap — the overlapping element 7 is rotated (see FIG. 2 to the closed position / so that the overlapping element 7 and the hollow body 17 form an annular gap 23, the stops 24 provided on pivot arm 6, provide a closed position for the overlapping member with respect to the outlet 4 and prevent the overlapping member from turning further into the outlet 4.
    The outlet is closed as follows: as soon as the steel flows into the casting ladle 5, slag 3 begins to flow out through the outlet 4. With the help of a pyrometer 25, through which the outgoing stream is monitored, when the steel is replaced by slag, an impulse is obtained 26 actuates a relay 27, which in response to this sends an electrical signal to the solenoid valves 28-30 embedded in the supply lines 31, 32 and 8 of the hydraulic cylinder 10 and the shut-off element 7. Elect omagnitny valve 29 is opened, whereby the hydraulic cylinder 10 translates the rotary arm 6 to the position closing. At the same time, the solenoid valve 30 of the supply piping of the shut-off element is actuated, as a result of which the compressed gas under full pressure is supplied to the closing body, which is loaded for the purpose of cooling with only a partial pressure of the compressed gas. After reaching the closed position, the outgoing compressed gas causes air to be sucked through the annular gap 23. Slag, due to the flow of compressed gas and air, is forced out into the refining bucket and can immediately be drained into a special slag bucket. As compressed gas can be used, for example, air, argon or nitrogen.
    Due to the step-shaped protrusion of the outlet, a uniformly large annular gap 23 is provided between the wall of the outlet and the overlap element 7, which even with more worn out brickwork 33 of the outlet from the versty ensures that the air is always drawn in the same amount of air from the environment. Since the diameter 16 of the inner annular wall 22 of the hollow body 17 is chosen larger than the diameter 13 of the outlet part 12 of the core, which is formed by the lining 14, the contact of the inner annular wall 22 with the melt or slag is excluded and due to this / inner damage is excluded
    0 annular wall, so that dg1ge to
    the end of the operational period of the converter, the outlet can be closed as well as at the beginning with the newly-walled converter. The size d in size is chosen so that even by the end of the operational period of the converter to maintain the difference in the diameters of the inner annular wall 22
    and part 12 of the outlet.
    权利要求:
    Claims (1)
    [1]
    1. Austria patent No. 350090, cl. 18 b, 8, 10/15/78 (prototype).
    类似技术:
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    FI60409B|1981-09-30|ANORDING FROM THE METAL SURFACE AND THE METALLURGICAL SCOPE OF KAERL
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    US3430644A|1969-03-04|Rotary gate for bottom pour vessel
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    US4561466A|1985-12-31|Valve for supplying flow media
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    US5050847A|1991-09-24|Staged valve multi-hole injection block and method
    EP0302040B1|1992-09-16|Improvement for ladles to cast metal
    US3582057A|1971-06-01|Oxygen lance
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    WO1995004621A1|1995-02-16|Method and device for unplugging a molten metal discharge port
    KR850001552B1|1985-10-17|Apparatus for supplying fluids to a convertor
    CA2410799A1|2002-11-27|Method and device for preventing slag from flowing along when tapping a molten metal
    SU980958A1|1982-12-15|Laddle for teeming oxydizable melts
    RU2007269C1|1994-02-15|Casting or intermediate ladle sliding gate
    同族专利:
    公开号 | 公开日
    EP0010535A1|1980-04-30|
    EP0010535B1|1982-06-02|
    AT359535B|1980-11-10|
    DE2963022D1|1982-07-22|
    JPS5558312A|1980-05-01|
    ATA760678A|1980-04-15|
    CA1111245A|1981-10-27|
    US4261554A|1981-04-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    LU61204A1|1970-06-26|1972-03-24|
    CA997142A|1973-09-27|1976-09-21|Noranda Mines Limited|Furnace tapping method and apparatus|
    AT350090B|1975-12-17|1979-05-10|Voest Ag|PROCEDURE AND DEVICE FOR LOCKING THE TUBE HOLE OF A METALLURGICAL VESSEL|
    GB1559527A|1976-08-03|1980-01-23|Flogates Ltd|Pouring of molten metals|US4850001A|1987-07-20|1989-07-18|Shell Oil Company|Orifice blockage detection system|
    WO1995025209A1|1994-03-14|1995-09-21|John Arnhart|Method and apparatus for positioning anchor bolts within a concrete form|
    AT407399B|1999-05-21|2001-02-26|Voest Alpine Ind Anlagen|METHOD FOR CLOSING AND OPENING A PUNCH HOLE IN A METALLURGICAL VESSEL|
    AT408965B|2000-01-27|2002-04-25|Voest Alpine Ind Anlagen|DEVICE FOR CLOSING A TAPPING HOLE OF A METALLURGICAL VESSEL|
    EP3546599A1|2018-03-29|2019-10-02|Primetals Technologies Austria GmbH|Pneumatic slag stopper|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    AT760678A|AT359535B|1978-10-24|1978-10-24|DEVICE FOR CLOSING THE STITCH HOLE OF A METALLURGICAL VESSEL|
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