• 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 invention relates to the field of ferrous metallurgy, namely to devices for preheating charge material. The aim of the invention is to increase the service life and reliability of operation. A device for preheating the charge for a metallurgical smelter comprises a container for receiving a preheated charge material, on the bottom of which a grid is located. The lattice consists of separate mutually spaced grid-irons, which pass out through holes in the container wall and which are installed in groups in support beams, capable of moving by means of actuating means between the closed position, in which the grid bars pass inside the container, and the release position, in which the grid bars leave the container. In order to make it possible to replace individual grid bars during the preheater operation and to reduce the obstacles created by stuck pieces of charge material for the grid bars to exit the container to the uncoupling position, the grid bars are installed with the possibility of rotation in the horizontal axis in the support beam, and Zan with grid bars at the entry points to the container. The control edges on the lower surfaces of the grid bars of the grid provide that the grid bars of grid can move with turning movements during their removal from the container. 9 hp f-ly, 5 ill. (L 05
    公开号:SU1641195A3
    申请号:SU884355552
    申请日:1988-04-15
    公开日:1991-04-07
    发明作者:Вебер Ральф
    申请人:Кортек Аг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to ferrous metallurgy and relates to a device for preheating charge material,
    The aim of the invention is to increase the service life and reliability of operation.
    The essence of the invention is to create a device for preheating the batch material.
    with the possibility of replacing individual grates of the lattice during operation of the device. The invention also aims to reduce the impact loads that occur when the charge material is introduced into the preheater so that the lightweight compact design can safely withstand them,

    (X
    The invention will reduce the resistance to movement for removal of grate grates from the container due to sintering or agglomerating pieces of the charge material so that it is possible to reduce not only the amount of energy required to output the grate parts, but also the mechanical load on the grate bars and the furnace wall after their removal.
    FIG. 1 shows a heater for preheating a batch material that is installed on a metallurgical melting furnace, a section; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a part of an apparatus for illustrating a method for suspending individual grid grates; in fig. 4 - two adjacent lattice grid-irons, bottom view; in fig. 5 is a cross section of & B in FIG. one.
    A device 1 (Fig. 1) for preheating the charge is installed on the furnace 2 for sewing metal and is connected to it to form a construction unit.
     The melting furnace contains a furnace vessel 3 with a tap 4 in the bottom and a plurality of nozzles that pass through the wall of the melting vessel. The JBO device contains nozzles 5, located under the bath, which open into the furnace tank below the level of the molten metal bath 6 and which can be used for oxygen injection, and also nozzles 7 that open into the furnace tank above the melt bath and which can be used for air intake. preheated in heat exchanger 8 by means of an annular conduit 9, as well as oxygen for the subsequent combustion phase. Above the surface of the molten metal bath 6 there are additional nozzles that can be used as burners Y.
    The hot waste gases 11 in the melting furnace 2 are passed to a device for preheating the charge material installed in the melting furnace on the inlet side 12, then upwards through the device for preheating the charge material
    material and after they give up most of their physical heat to the batch material in the device for preheating the mixture,

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    sent through the outlet end 13 of the pipe 14 to the heat exchanger 8 to preheat the air before the gases pass into the chimney for flue gases. The device 1 for preheating the batch material is made in the form of a container that is covered with a lid 15 on top. The lid can be moved to the side to introduce the charge material 16.
    The device 1 for preheating the charge material (FIG. 1) consists of three parts 17-19, which are located one above the other and have the same design. Each part of the preheating device has a grate on the bottom consisting of individual grates 20 spaced from each other and passing out through the openings 21 in the wall 22 of the container.
    The outer ends of the corresponding group of grid grates 21 (FIG. 2), which are arranged in a mutual parallel connection, are installed in the support beam 23 and 24, respectively, moved by means of actuating means 25, respectively, between the closed position, at which the grate bars 20 protrude into the container and an engagement position in which the grate bars 20 are removed from the container. The grate grates of the lower 17 and upper 19 parts of the preheater are in the closed position, in which the grate can hold the charge material 16 in the corresponding part of the device, and the grate grates 20 of the preheater middle part 18 are located in the tripping position. Thus, each portion 17, 18, and 19 of the heating apparatus is respectively closed at the bottom with separately actuated grid parts.
    The position of the grate 20 in the closed position is indicated by solid lines, and the position of this grate in the release position is indicated by dotted lines (Fig. 3 and 4).
    Each grate 20 of the grid is installed with the possibility of a separate gate around the horizontal axis 26 in the corresponding support beam and connected to it at the entry point to the end 51
    teiner, i.e. adjacent to hole 21 ,. provided for the corresponding grate, a support 27 is located in the container wall 22. Although in the construction shown, each grate grate has its own support 27 interacting with it, and each grate can also rotate independently of the others around horizontal axis 26, However, it is possible to form a common support for a plurality of grid grates and a pivotally strong connection between the respective grate bars.
    The support 27 is preferably made in the form of an elastic support and includes a wearing cap 29 mounted on a pin or bolt 28. The bolt 28 is axially mounted with the possibility of sliding in the flange 30 and is displaced upward by means of a compression spring 31.
    The grate grate 20 is installed so that it can be rotated in the corresponding support beam by the fact that each grate grate is equipped at one end with two transversely rotating pins 32 and 33, each of which is installed in the corresponding support 34 and 35. The supports have a U-shaped notch ( Fig. 3), in which there is a corresponding trunnion, and they are covered with corner elements 36 fastened with bolts. Each trunnion has its own corner element that interacts with it, thus by releasing the corner elements on both sides of the grate bar, this bar can be disconnected from the other bars of one part of the grid and replaced. Each support beam is attached to two swing arms 37 (Figs. 1 and 2), which are mounted to be rotatable on the outer wall of the container with the help of swivel supports 38 in a plane that passes over openings 21 for passing the grate bars 20, installed in the support beam or respectively. As actuating means 25, a hydraulic cylinder is mounted to each pivot arm 37 rotatably mounted on the wall 22 of the container, which grips the corresponding pivot
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    25 30 d «« l
    35
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    a lever 37 between the point of installation of its axis and the fixing position of the support beam, respectively. The hydraulic cylinder assemblies of the swing arms can be controlled synchronously, so that the corresponding support beam can be rotated from a position indicated by solid lines on
    FIG. 3, uniformly around the axis of the pivot bearing 38 outward to a position indicated by dotted lines. When such a pivotal movement occurs, all the grid bars 20 of the grid are removed from the container, with their lower edges sliding along the respective support 27. In the construction shown, the container has a rectangular configuration in horizontal projection and support beams are parallel in all their positions opposite sides of the rectangular shape of the container.
    The bottom edge of the individual grate grates 20 (FIGS. 3 and 4), which slides over the respective support 27 when the support beam moves, is made in the form of a control edge 39 having a stepped configuration in the structure shown. When the control edge slides over the support, when the corresponding part of the lattice and the associated grate 20 associated with it are removed from the container, during this movement, the part of the trellis grate, which is still inside the container, is lowered stepwise and thus the trellis grate is forced A pivoting or shaking movement that reduces the force required to remove the grate from the container. This is particularly advantageous if the control edges 39 of the adjacent grate 21 have a different configuration, for example, a stepped configuration of the control edges 39 of the adjacent grate, and they are offset relative to each other (Fig. 3, dashed line relative to the solid line).
    When the control edges 39 of the adjacent grid grates 20 have a different configuration, then during the removal of the grid grates they make a pivotal movement in opposite directions, thus releasing pieces of the charge material that get stuck between
    rods bars. A further reduction in the effort required to remove the grate grates from the container is achieved if the wearing caps 29 of the supports 27 are replaced with rollers or if additional rollers are used, such as roller 40 (dashed lines, fig. 3), which can rise to such an extent that the grate bars 21 can be held on the rollers with their respective lower edges when the grate bars are removed. Possible movements for raising and lowering
    schematically indicated by the arrow 41 with two heads.
    Cooling rods 42 (Figs. 1 and 5) may be introduced into the container at the inlet for heating gases. The cooling rods 42 include coolant piping and they serve to cool the hot gases 11 that pass from the furnace j3, and to such an extent as to prevent sintering of individual pieces of charge material
    Like the grate grates 20, the cooling rods are connected in groups, in particular, they form two strings 43, the cooling rods 42 of the groups 43- are held in the holder 44-. The latter can be moved in the horizontal direction (Fig. 1). Through hydraulic actuator mechanisms 45, which can be controlled separately, the cooling rods of the group can be introduced to a greater or lesser extent inside the heater container to preheat the charge material and thus the cooling effect of the cooling rods 42, which act as a heat exchanger, can be adapted to the requirements .
    Not only cooling rods 42, but also grid grates 20 have coolant pipelines and corresponding connections to the cooling medium supply system.
    With the proposed device for preheating the charge material, the charge material can be moved stepwise through zones 19, 18 and 17, and in combination with controlled cooling with the help of cooling rods 42, the material can be uniformly heated to almost the softening temperature of the material. Sieve areas








    in separate zones, the pre-heaters can be activated separately.
    five
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    权利要求:
    Claims (8)
    [1]
    1. A device for preheating charge materials comprising a container with a grate bottom consisting of separate griddders located at a distance of each other, passing into the container through openings in its walls and having the ability to move outside the container with the help of actuators, at the same time, the outer ends of the grate are installed in a support beam located outside the container, so as to increase the service life
    and reliability of operation, the device is provided with supporting units located on the outer side of the container and contacting with the grid bars at the place of their entry into the container, and the grid bars are fixed in the support beam with the possibility of their rotation around the horizontal axis,
    [2]
    2. The device according to claim 1, that is, that the support
    the node is spring-loaded.
    [3]
    3. The device according to claim. Characterized in that the lower edge of the grate is stepped.
    [4]
    4. The device according to claim 1, characterized in that the lower edges of the two adjacent grates have a different configuration.
    [5]
    5. The device according to claim 1, characterized in that it is provided with rollers mounted with the possibility of vertical movement under the lower edge of the grate.
    [6]
    6. The device according to claim 1, characterized in that the grate bars are installed in the support beams with the possibility of their separate disconnection. |
    [7]
    7. The device according to claim 1, characterized in that it is provided with pivoting levers fixed to the outer wall of the container to which the supporting beams are attached.
    [8]
    8. The device according to l 1, characterized in that the actuators are rotatably mounted on the container wall and connected to at least two pivot levers between the point
    nineteen
    1-37
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    Editor M.Blanar
    Compiled by L.Pannikova
    Tehred L. Oliynyk Proofreader M. Demchik
    Order 1023
    Circulation 401
    VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5
    39s
    21
    39 41
    FiaM
    Subscription
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE284770C|
    US649135A|1900-01-08|1900-05-08|Eli Millett|Core-oven.|
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    JPH0413403B2|1983-02-16|1992-03-09|Daido Steel Co Ltd|
    DE3410896A1|1984-03-24|1985-10-03|Perfluktiv-Consult AG, Basel|METHOD FOR THE THERMAL AND / OR CHEMICAL TREATMENT OF GRAINY, GRANULATED OR PIECEOUS GOODS|
    JPH0473074B2|1985-08-23|1992-11-19|Kankyo Soken Konsarutanto Kk|DE3839095A1|1988-11-18|1990-05-23|Fuchs Systemtechnik Gmbh|METHOD FOR OPERATING A MELTING UNIT AND MELTING UNIT FOR THIS METHOD|
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    DE4332913A1|1993-09-23|1995-03-30|Mannesmann Ag|Steelworks facility with closed tiltable arc furnace|
    EP0772015B1|1995-03-31|2001-06-13|Nippon Steel Corporation|Method and apparatus for preheating and melting scrap|
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    KR101713955B1|2015-12-15|2017-03-09|한국과학기술원|Scrap preheating device and method thereof|
    CN106979693B|2017-03-07|2018-11-20|宁波钢铁有限公司|Automatic discharge sealing device for LPD type preheater feed back elephant trunk|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19873713369|DE3713369A1|1987-04-21|1987-04-21|CHARGING MATERIAL PREHEATER FOR PREHEATING CHARGING MATERIAL FROM A METALLURGICAL MELTING UNIT|
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