• 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:
    The sub-lance installation for carrying out measurements and/or taking samples in a metallurgical furnace has an elongated tubular lance (3) which is rotatable around its longitudinal axis. For rotating the lance (3) comprises a helical guide system which imparts rotation to the lance. The helical guide system comprises mutually cooperating helical projections (13) and recesses (15) mounted respectively on the lance (3) and a guide (14) for the lance.
    公开号:SU1711684A3
    申请号:SU884355301
    申请日:1988-02-15
    公开日:1992-02-07
    发明作者:Корнелис Хендрикус Зонневельд Петрус
    申请人:Хоговенс Гроеп Б.В. (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a device for measuring and / or sampling in a metallurgical furnace, comprising an elongated tubular shape rotatably installed around its longitudinal axis and attached at its upper end to a carriage, by means of which the tuyere its longitudinal vertical axis moves vertically to bring its lower end into working position is for measuring and / or sampling.
    The aim of the invention is to simplify the device, increasing the reliability and efficiency of its use.
    FIG. 1 shows an auxiliary tuyere; in fig. 2 - the same, when turning the lance 180 °; in fig. 3 - means for turning the auxiliary tuyere in the auxiliary tuyere device; in fig. 4 shows a side view forming part of the means for turning the auxiliary tuyere; in fig. 5 is the same, top view.
    The device comprises a main lance 1, which oxygenates the furnace 2 of the metal. In parallel with the oxygen lance 1, there is an auxiliary lance 3 mounted on the suspension means 4 and shown in FIG. 1 and 2 in
    About 00
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    WITH
    its lowest position, in which the probe 5 at its lower end enters the furnace. The auxiliary tuyere 3 is an oblong tubular structure and has a longitudinal vertical axis. At the upper end of the auxiliary fur-. We 3 secure the suspension means 4, which hangs the auxiliary tuyere in the carriage, with which the auxiliary tuyere can be moved up and down along the guide surface. Inlet 6 and outlet 7 for cooling the liquid are located near the upper end. The auxiliary lance can be cooled near the attachment of the probe 5 with the aid of a flowing fluid.
    The auxiliary tuyere 3 is a rotary tuyere fitted with coupling halves 8 and 9 connecting the outer casing 10. The coupling halves 8 and 9 are rotatably mounted relative to each other and are sealed to prevent leakage of coolant.
    FIG. 1, the position of the auxiliary tuyere for blowing oxygen into the furnace is shown by solid lines. During the oxygen purge, the auxiliary tuyere is heated on one side so that, after the oxygen purge, it is curved and, probably, takes the position shown by dashed lines. If the auxiliary tuyere is rotated 180 ° around its vertical axis for the next furnace load, the auxiliary tuyere when lowered to the position shown in FIG. 2, occupies a position in accordance with the solid lines. After additional purging of the furnace, the auxiliary tuyere will be bent under the action of heat so that it becomes more direct (in Fig. 2 it is shown by dashed lines). It is not necessary to rotate the auxiliary tuyere between the end of this purge and the next load, since the tuyere is now in position and shaped like the initial position. After the next operation, in which an auxiliary tuyere is used, the latter is bent again and must be rotated again. If such a practice is used, it is sufficient to turn the lance through an angle of 180 ° each time after double use.
    From practical use, it can be seen that this distortion occurs mainly during the so-called blowing measurements, when the measurement takes place during oxygen blowing, i.e. without a pause in the purge. Measurement accuracy is especially important in order to guarantee the continuous dynamic operation of the furnace and to obtain the best possible oxygen uptake. Experience shows that the curvature of the auxiliary tuyere occurs more smoothly than in
    5 of the above scheme. However, it turned out to be necessary to turn the auxiliary tuyere at least once per work shift, since otherwise there were serious problems with the introduction of the tube.
    FIG. 3. The auxiliary lance is shown suspended on the carriage 11, with the help of which the auxiliary lance can be lowered into the converter and raised
    5 from it (not shown) along the vertical guide system 12. The auxiliary tuyere is provided with a screw guide, which is the guide elements in the form of two screw projections 13,
    0 passing each along a helix on a section of the circumference of 180 ° and installed diametrically opposite one to another on the outer casing 10 of the auxiliary tuyere.
    5 The screw guide system also has a guide 14 for the auxiliary tuyere, which partially covers the auxiliary tuyere and has recesses 15 that interact with the screw lugs 13. The guide 14 is fixedly mounted on the vertical guide 12 near its lower end 16, During interaction the projections 13 and the notches 15, for example, when lowering the auxiliary
    5 from the position shown in FIG. 3, the auxiliary tuyere is rotated by an angle of 180 ° around its vertical axis. Turning also takes place when lifting from a lowered position. For this
    The rotation does not require a separate drive and does not produce eccentric forces on the auxiliary tuyere.
    The invention does not extend only to the preferred embodiment, as shown in FIG. 3, but also on the variants in which, for example, the protrusions are mounted on the guide 14, and the cooperating recesses on the auxiliary tuyere, and these guide elements jointly form a screw guide system, but also on the variants in which , the protrusions are mounted on the guide 14, and the cooperating recesses on the auxiliary tuyere, and these guide elements 5 together form a screw guide system. It is also possible that the guide is not rigidly installed, but the tuyere and the guide system have the ability to move one relative to another.
    for example, the guide may be raised, and the auxiliary tuyere is omitted.
    Screw protrusions 13 are located between the lower and upper ends of the auxiliary tuyere. Above and below the protrusions 13 there are projections 17 protrusions located parallel to the longitudinal axis of the auxiliary tuyere, which are portions of approach and descent or entry and exit. These extensions are of considerable length, since the lance, when in operation, must be lowered to measure further into the converter, since the converter lining wears out.
    The protrusions consist of strips or segments 18 of round rod material welded to the outer casing 1p. The guide 14 has an inner surface 19 which surrounds the outer casing 10 of the auxiliary tuyere at least partially and in which grooves 20 are formed, forming recesses 15 interacting with the projections 18. Sliding friction takes place in the grooves. The grooves are made in blocks 21 of a material that must be resistant to this slip. There are embodiments of the invention in which the protrusions 18 and possibly the outer casing 10 are guided by rollers.
    The guide 14 comprises a pair of clips 22, in the opposite surfaces of which there are recesses 15. The clips 22 can be opened and closed by means of an air cylinder 23 through a fork 24 and a lever 25 to release the auxiliary tuyere. After being released from the guide 14, the auxiliary tuyere 3 does not turn if it moves vertically. Thus, the rotation control of the auxiliary tuyere is carried out using a pneumatic cylinder 23.
    权利要求:
    Claims (5)
    [1]
    1. A device for measuring and sampling from a metallurgical furnace, comprising a rotatable tubular tuyere provided with a vertical guide and a carriage arranged thereon for vertical movement of the tuyere, and means for rotating the tuyere, characterized in that, in order to simplify the device, increase reliability and the efficiency of its use, the device is equipped with a horizontal guide rigidly placed on the lower end of the vertical guide, and the means for turning the tuyere is made in the form of a screw guide system we, containing two spiral protrusions mounted diametrically on the outer shell of the tuyere, and corresponding recesses located on the horizontal guide.
    [2]
    2. Device pop. 1, characterized in that each spiral protrusion is provided with guides arranged at the upper and lower ends parallel to the longitudinal axis of the tuyere.
    [3]
    3. The device according to paragraphs. 1 and 2, characterized in that the spiral elements are made in the form of elongated elements welded to the outer casing of the tuyere.
    [4]
    4. The device according to claim 1, characterized in that the horizontal guide is placed around the side surface of the tuyere, and the recesses are made in the form of grooves on the surface of the guide facing the tuyere.
    [5]
    5. The device according to claim 1, characterized in that the horizontal guide is provided with a pneumatic cylinder for opening and closing it.
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    类似技术:
    公开号 | 公开日 | 专利标题
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    US3130584A|1964-04-28|Blast furnace probe
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    US3786682A|1974-01-22|Catalyst sampling apparatus
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    SU1494855A3|1989-07-15|Arrangement for storing and teeming metal melts ,particularly, iron with spherical graphite, treated with magnesium
    SU1732809A3|1992-05-07|Metallurgical reservoir with wicket gate and its refractory rotor and stator
    CA2229738A1|1998-09-07|Top closing device for shaft furnaces
    EP0069433B1|1985-02-27|Sublance for measuring and/or sampling in a metallurgical furnace
    US3812705A|1974-05-28|Device for degassing a sample
    US5299900A|1994-04-05|Installation for charging a shaft furnace
    US4290306A|1981-09-22|Method and apparatus for probing into a refining furnace or the like for temperature measurement for sampling, or for both
    US4471664A|1984-09-18|Support for a blast furnace probe
    US4137422A|1979-01-30|Airtight metal melting furnace
    CA2037223A1|1991-09-08|Probe for taking gas samples and heat measurements above the charging surface of a shaft furnace
    AU722667B2|2000-08-10|A rotary regenerative preheater
    SU1341526A2|1987-09-30|Loose material sampling device
    US2194971A|1940-03-26|Blast furnace charging
    SU461293A1|1975-02-25|Apparatus for separating slag from metal at discharge of smelting from converter
    US4516757A|1985-05-14|Tiltable metallurgical converter having material carrying lines
    SU396389A1|1973-08-29|ALL-UNION YALTE !. ;, '.7.; Y, ^ сЛЛ1. Cl. C 21 d 9 / 00UDC 621.783 |
    KR840001815B1|1984-10-20|Method and apparatus for probing into a refining furnace or the for temperature measurement for sampling or for both
    JP2706795B2|1998-01-28|Continuous sampler in blast furnace
    同族专利:
    公开号 | 公开日
    NL8700371A|1988-09-16|
    EP0280349B1|1990-05-30|
    CS96888A3|1992-02-19|
    EP0280349A1|1988-08-31|
    AT53238T|1990-06-15|
    DD276888A5|1990-03-14|
    US4792124A|1988-12-20|
    CA1327280C|1994-03-01|
    KR880010324A|1988-10-08|
    ES2015104B3|1990-08-01|
    KR900008952B1|1990-12-15|
    CS276601B6|1992-07-15|
    JPH0224887B2|1990-05-31|
    DE3860188D1|1990-07-05|
    JPS63216914A|1988-09-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4097031A|1976-09-25|1978-06-27|Kawasaki Jukogyo Kabushiki Kaisha|Lance supporting and gyrating device in a steel-refining converter|
    US4141249A|1977-03-14|1979-02-27|Nippon Kokan Kabushiki Kaisha|Sub-lance assembly for sampling and temperature-measuring of molten metal during refining|
    JPS6059965B2|1979-03-28|1985-12-27|Nippon Kokan Kk|
    US4223450A|1979-07-05|1980-09-23|Airco, Inc.|Methods and apparatus for controlling gas flows|
    NL8103306A|1981-07-10|1983-02-01|Estel Hoogovens Bv|AUXILIARY PLAN FOR MEASURING AND / OR SAMPLING IN A METALLURGIC OVEN AND METHOD FOR USING THIS AUXILIARY.|
    JPS5921656U|1982-07-28|1984-02-09|
    JPH0716298B2|1983-09-07|1995-02-22|シチズン時計株式会社|Small stepper motor|DE4003068C1|1990-02-02|1991-07-25|Voest-Alpine Industrieanlagenbau Ges.M.B.H., Linz, At|
    US5259591A|1990-02-02|1993-11-09|Voest-Alpine Industrieanlagenbau Gmbh|Method for installing and removing a lance into and from a metallurgical vessel|
    CA2038823A1|1990-03-30|1991-10-01|Akio Nagamune|In-furnace slag level measuring method and apparatus therefor|
    JPH048222U|1990-05-01|1992-01-24|
    US5062613A|1990-12-03|1991-11-05|Fordees Manufacturing|Two speed hoist drive assembly|
    JPH06242730A|1993-02-19|1994-09-02|Denshiyoku:Kk|Illuminating panel|
    AU2011323008B2|2010-10-28|2014-10-09|Heraeus Electro-Nite International N.V.|Wireless lance|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    NL8700371A|NL8700371A|1987-02-16|1987-02-16|SUB-LANS DEVICE FOR MEASURING AND / OR SAMPLING IN A METALLURGIC OVEN.|
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