• 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:SU1838426A3
    申请号:SU894742658
    申请日:1989-12-18
    公开日:1993-08-30
    发明作者:Van Lar Yakobus
    申请人:Hoogovens Groep Bv；
    IPC主号:
    专利说明:

    The invention relates to a device for receiving molten material, for example, for cast iron and slag discharged from a blast furnace.
    The purpose of the invention is to increase the service life of the device.
    Figure 1 is a cross section of a gutter embodying the invention; in FIG. 2 is a side view of the gutter; on figs - section aa in fig. 2.
    In FIG. 1, a trough for casting iron 1 is shown with the boundary of the working lining 2 forming a channel for carrying iron. Working sheathing 2 may also consist of several layers, which can be displaced relative to each other. For this, thrust channels conducting molten materials can be used, for example, in the trough for cast iron or the trough for cast iron, lateral pressure is applied inward to the working casing of such a channel through intermediate layers of constant casing. These may include low friction sliding plates and at least one layer having high thermal conductivity. The pressure applying means are supported by an external frame structure and are preferably such that the applied pressure does not depend on the degree of expansion of the channel. The magnitude of the compressive loads is set equal to 60-80% of the maximum compressive stress of the working layer of the lining at the operating temperature at the level of application of the load. 2 s and 1 Gz.p. f-ly, 3 ill.
    Various materials are used, but refractory concrete is usually used.
    Directly adjacent to the working casing 2. an intermediate casing 3 of graphite for quick equalization of the temperature of the hot spots in the working casing 2. Between the intermediate casing 3 and the permanent casing 5 there is a graphite slip plate 4. This contributes to the different expansion of the working casing 2 and the permanent casing 5.
    This is especially achieved because the sliding plate 4 is in contact with the intermediate skin 3, also made of graphite, which acts as a second sliding plate. It has a low coefficient of friction (approx. 0.05-0.2). Besides
    SU „„ 1838426 AZ of that ,, intermediate lining of graphite 3 has the advantage of high thermal conductivity with a thermal conductivity of at least 60 kcal / m ° C hour.
    The external boundary of the working skin 2 and the internal constant skin 5 in cross section form a swallow tail tapering upwards, so that the side walls of the intermediate skin 3 and the sliding plates 4 are somewhat inclined relative to the vertical. This helps to withstand the tendency towards vertical displacement of the working skin.
    Behind the permanent casing 5. which can be made, for example, of aluminum oxide or carbon in combination with aluminum oxide, the first layer of the outer casing 6 and the second layer of the outer casing 7 are sequentially located. The first layer of the outer casing 6 is made of graphite. This gives a good temperature equalization, so that leaking cast iron that reaches this outer skin through cracks in the working skin 2 and the permanent skin 5 has less chance of breakthrough. The effect of this good temperature equalization on the permanent casing 5 also contributes to an increase in service life.
    The second outer skin 7 may be made, for example, of coal. The outer casing adjoins it, the plates of which move freely relative to each other on the side walls 8 and the bottom 9. The steel end wall of the casing at the end 10 of the trough consists of several parts vertically above each other, which can move relative to each other.
    From the sketch it can be seen that the side walls 5. 6, 7 in the U-shaped section of the layers of the skin of the trough are made separately from the bottom of these sections.
    The side walls 8 and the end wall 10 (see Fig. 2) are supported by means of pressure 11 mounted on massive beams 12, which can be connected together by transverse beams 13, forming a frame. Beams form the fulcrum for applying pressure both on the walls of the casing, and, through them, on the skin.
    The pressure means 11 may be sets of springs, or hydraulic or pneumatic means. It is possible to adjust the hydraulic pressure in the nodes so that the applied pressure does not depend on the expansion of the gutter at any time. This gives the advantage that sufficient load is always applied to the gutter to compress any cracks that have formed.
    For this, it is important that the structure supporting the pressure means 11, which are located in the longitudinal direction of the trough to act on its end wall, is arranged so that the forces are not transmitted to the design of the blast furnace. Heavy 14 could be provided on the side of the blast furnace, so that the trough cannot be displaced in its direction. It may also be advantageous to use a heavy crossbeam 14, a tie rod between the ends of the trough may be.
    It is desirable to take into account changes in the expansion of the gutter by applying a greater compressive load in the upper part of the structure to the side walls 8 and the end wall 10 than to the lower parts; for example, if the pressure means 11 are springs, then additional sets of springs or a set of springs with higher spring constants (stiffness, note transl.) are used. In addition, the steel bottom 9 of the casing should be able to freely move relative to the side walls 8 and the end wall 10 of this casing.
    In a particular embodiment, sets of springs or hydraulic or pneumatic means can exert a compression load, which at a given point of pressure application is at the level of 60-80% of the compressive strength of the working skin at the operating temperature at the level of this point.
    In this way, the tensile forces in the casing as a result of various expansion. at least compensated, which means that the entire structure is under a compressive load applied from the side of the supporting structure 12, 13, 14, 15. This prevents cracking in various skins. Stresses in individual skins can be further reduced by dividing these skins into two or more layers. For example, the sheathing 2 can be made of two working layers that can move relative to each other.
    Although specifically described by way of an iron chute, the invention is also applicable to troughs for cast iron and slag, as well as to work with other melts of materials such as copper and aluminum.
    权利要求:
    Claims (9)
    [1]
    Claim
    1. A device for receiving and transporting molten material, containing a lined chute enclosed inside the casing, and pressure means acting on the end plate, characterized in that. in order to increase the service life of the device, it is equipped with external supports and additional means of pressure installed on the sides of the device, while the lining is made of several layers and of various materials, and the pressure means are fixed on external supports on one side and on the wall of the casing on the other .
    [2]
    2 'The device according to Claim 1. The clause is that the end plate is made of two parts having the ability to move relative to each other.
    [3]
    3. The device according to paragraphs. 1 and 2, with the exception. I mean that the side walls of the casing are movable forging to the casing, made of materials with different coefficients of thermal conductivity, while the coefficient of thermal conductivity of the material of the inner layer is greater than 5 than the coefficient of thermal conductivity of the material of the outer layer.
    9. The device according to paragraphs. 1-8, characterized in that the thermal conductivity of the material from which is made
    10 inner layer, above 25 kcal / m ° C h.
    10. The device according to paragraphs. 1-9, with the proviso that the outer layer of the lining at the end of the device extends through to the side walls of the casing.
    15 11. The device according to PP. 1-10, different, relative to the bottom.
    [4]
    4. The device according to paragraphs. 1-3, characterized in that the side walls of the intermediate layers of the lining are made Separately from the bottom.
    [5]
    5. The device according to paragraphs. C4, distinguished by the fact that two layers of the lining adjacent to the working layer are made in the form of sliding plates.
    [6]
    6. The device according to paragraphs. 1-5, distinguished by the fact that the sliding plate adjacent to the working layer is made of a material with thermal conductivity above 25 kcal / m ° Cch.
    [7]
    7. The device according to paragraphs. 1-6, with the exception of the fact that the working layer of the lining is made of at least two layers that can be moved relative to each other.
    [8]
    8. The device according to paragraphs. 1-7, with the exception of the fact that the two layers of the lining, as well as the fact that the outer boundary between the working layer of the lining and the sliding plate is made in the form of a dovetail narrowing up.
    20 12. A method of operating a device for receiving and transporting molten metal, comprising applying compressive loads to the end face of the casing, characterized in that, in order to increase the service life, compressive loads are applied in addition to the side walls of the device. the magnitude of the compressive load is set equal to 60-80% of the limiting compressive stress of the working layer of the lining at the operating temperature at the level of application of the load.
    [9]
    13. The method according to clause 12, with the fact that the compressive load is increased from the bottom of the device to the top.
    Order 2906 Circulation Subscription
    VNIIIPI of the State Committee for Inventions and Discoveries under the State Committee for Science and Technology of the USSR 113035, Moscow, Zh-35, Raushskaya nab., 4/5
    Production and Publishing Plant Patent ’*, 101, Gagarin St., Uzhgorod
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    同族专利:
    公开号 | 公开日
    EP0375007B1|1993-06-23|
    JPH02217409A|1990-08-30|
    AT90972T|1993-07-15|
    DE68907328T2|1993-10-21|
    CN1014531B|1991-10-30|
    NL8803103A|1990-07-16|
    CN1043746A|1990-07-11|
    US5129631A|1992-07-14|
    AU4694089A|1990-06-21|
    CA2005769C|1996-05-21|
    CA2005769A1|1990-06-19|
    JPH031363B2|1991-01-10|
    EP0375007A1|1990-06-27|
    DE68907328D1|1993-07-29|
    UA19311A|1997-12-25|
    KR900010003A|1990-07-06|
    KR930001004B1|1993-02-12|
    ES2040988T3|1993-11-01|
    AU628446B2|1992-09-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2691827C1|2018-01-16|2019-06-18|Общество с ограниченной ответственностью "Резонанс"|Chute with radiation heating for transporting molten metals|GB773272A|1954-07-29|1957-04-24|Kaiser Aluminium Chem Corp|Improvements in or relating to molten metal transfer troughs|
    DE2836123C3|1978-08-15|1981-04-09|Mannesmann AG, 4000 Düsseldorf|Tapping channel on a shaft furnace, especially a blast furnace|
    AT370133B|1981-03-04|1983-03-10|Voest Alpine Ag|GUTTER FOR A METAL MELT|
    LU84042A1|1982-03-26|1983-11-17|Arbed|CASTING RIGOLE FOR LIQUID METALS|
    US4573668A|1982-12-06|1986-03-04|Labate M D|Slag and hot metal runner systems|
    US4531717A|1984-03-22|1985-07-30|Kaiser Aluminum & Chemical Corporation|Preheated trough for molten metal transfer|
    AT379172B|1984-04-26|1985-11-25|Voest Alpine Ag|SLAG GUTTER|EP0501045A1|1991-02-27|1992-09-02|Hoogovens Groep B.V.|Iron runner|
    US5316071A|1993-05-13|1994-05-31|Wagstaff Inc.|Molten metal distribution launder|
    NL1003885C2|1996-08-27|1998-03-03|Hoogovens Tech Services|Gutter for a hot melt and gutter system.|
    DE29922336U1|1999-12-21|2000-02-24|Wurtz Paul Antoine|Channel arrangement|
    US20090236233A1|2008-03-24|2009-09-24|Alcoa Inc.|Aluminum electrolysis cell electrolyte containment systems and apparatus and methods relating to the same|
    EP2510297B1|2009-12-10|2015-08-26|Novelis, Inc.|Molten metal containment structure having flow through ventilation|
    BR112012013778B1|2009-12-10|2020-10-13|Novelis Inc|compressive rod assembly to apply force to a refractory vessel|
    CN108592640B|2013-12-20|2020-09-01|魁北克9282-3087公司（加钛顾问公司）|Electrode seal for metallurgical furnace|
    CN110817138B|2019-09-05|2021-10-26|首钢集团有限公司|Fire-resistant cylinder container|
    法律状态:
    2007-09-20| REG| Reference to a code of a succession state|Ref country code: RU Ref legal event code: MM4A Effective date: 20041219 |
    优先权:
    申请号 | 申请日 | 专利标题
    NL8803103A|NL8803103A|1988-12-19|1988-12-19|IRON GUT.|
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