• 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 a grid trolley and a grid rod intended to be included in a grid trolley. A grate cart comprises a package of grate rods (12) received in a first space (30) defined between elongate holding means (14) between opposite ends (16, 17) of the grate cart, a heat treatment gas being allowed to pass through a bed of material via gaps defined between the grate rods , a force applying means (50) with a force transmitting part (52) accommodated in a second space (40) in one end of the grate carriage or in each end end compresses the grate rods in the package against each other by transmitting pressing force against the package of grate rods. For the function of the force application means, the grate carriage comprises a covering device which is connected in motion-transmitting connection with the force application means (50) and which covering device in blocking cooperation with an access opening (40: 1) to the second space (40) protects the force application means from intrusion and material collection. (fig- 2)
    公开号:SE1551586A1
    申请号:SE1551586
    申请日:2015-12-03
    公开日:2017-06-04
    发明作者:Wennström Christoffer；Hämen Ilkka
    申请人:Luossavaara-Kiirunavaara Ab；
    IPC主号:
    专利说明:

    The present invention relates to a grate carriage for a sintering machine for receiving bulk material according to the preamble of claim i. The invention also relates to a single-force transmitting part as a transmission element included in such a trolley according to the preamble of claim 1. This type of grinding machine, for continuous firing of bulk materials, specially aggregated iron-containing material in the form of raw pellets for the production of pellets, has a single-moving or traveling grate with an endless conveyor. The endless conveyor comprises a series of wheels mounted on rails track-guided by carriages, so-called grid swirls, on which summer metal plates designed as rust sieve are mounted in parallel, side by side in a row one after the other to form continuous packages. A number of such packages together form a single rust, i.e. a gas-permeable load-bearing surface or bottom of each carriage. During operation, the carrier conveyor carries the carriages through a heat treatment zone in an upper part of a track, whereby a gas flow of heating or heat transfer gas is by means of a so-called suction box forced to pass down said upper part of the conveyor's movement path and thereby through the bulk heat treatment material. After passage out of the heat treatment zone, the web and thus the carriages move downwards, whereby the carts thus turned upside down are emptied of their contents of pellets. the carriages move in an upside-down position along the lower web, after which they move upwards to the upper level to finally be turned to their upward-carrying position in which they are again filled with raw balls which are to be heat-exchanged into pellets.
    In order to keep the grate rods in the upside-down position in the carriage, the grate rods, at two side sides facing away from each other, provided with holding means designed to cooperate with elongate holding means in the grate carriage. The grate rods are slidably received on said elongate needle means in a receiving space which is delimited between wall portions 1 of a wheeled frame included in the grate carriage. Each grid rod is provided on each side of a main surface with spacers which projecting from the main surface or plane of the grid rod form a transverse extension thereof. These spacers have the task of forming a gap with a predetermined width between adjacent grid bars in each series of successive grid bars arranged in packages in the carriage.
    Linder heat treatment rests a material bed of iron-containing agglomerates on the load-bearing surface of the rust. Thanks to the gap, a gas solder can pass down the grate carriage and thus also through the material bed. In known grate rods, the gap between adjacent grate rods, in a package of a row of row rods arranged one after the other, has a constant or equal width along the narrow gap in the vertical direction, i.e., in the direction of gas flow through the cargo load-bearing surface and material bed. Large amounts of heating nitprfrimsizacw.summer series / daaim zsrzssc / frf Sousse / Pärt 505850SE00lP4l 5OÛ85OSEOO ~ W2Oi 5-05-25__1 50525 besk o patentkravdocx 1G 2 or heat treatment gas must pass through the gap for the quality of the gap. For efficient installation, it is essential that a large gas flow through the material bed can be maintained.
    Problems with the gas flow can occur if fragments from particles or material material fall down from the material bed and get stuck in the gap between the adjacent grating rods. The accumulation of particles results in the gaps in the grate carriage being clogged and the transfer of heating or heat treatment gas to the material bed is significantly impaired. Particles that are stuck tend to accumulate and form larger and larger stops that are very tight. A known way of avoiding said problems is by biasing whereby the grid rods 1 each package are resiliently pressed against each other in a resiliently resilient manner. In the prestressing, force application means are used comprising springs or similarly arranged adjacent sides or gables in the frame of the grate carriage. by means of said springs, the grid rods arranged side by side in a package are pressed together in an elastically compliant manner from the carriage side towards each other so that the width of the gap delimiting the main surfaces of the intermediate grid rods is kept constant. regardless of occurring thermal expansion or contractile during the installation process.
    The material bed of a grate carriage extends over the entire width of the grate, from side to side and consequently in contact with the above-mentioned force application means in the carriage slides. A problem with hitherto known grate carriages is that particles from the material bed, not only can fall into the gap between the grate rods but also penetrate into moving parts which are part of the force application means located in the ends or sides of the grate carriage which can affect the function of the bead application means. In this part it should be understood that the force application means will not function as intended if the transmission of the compressive force is prevented by accumulated particles, for example in the form of pellets which have adhered to the moving parts which are included in the force application means.
    From WG 20t3i17t022 a grate carriage is known provided with force application means which exert a compressive force which presses the placed grate rods against each other. In order to avoid contact with the material bed as much as possible, the force application means is mounted on the outside of the grate carriage, in a side wall or frame, and is designed to act on the grate rods via a piston or plunge through a wall in the grate carriage. At a free end, the piston is provided with a transmission element designed for co-operation with a front or rear flat main surface facing the transmission element and a grid rod. Accordingly, said piston and transmission element are located on the inside of the grate carriage, in connection with the material bed. It should be understood that there is a risk that the force application means do not work in any way or particles or pellets wedges fixed in said moving parts on the inside of the carriage.
    A first object of the present invention is to provide a grate carriage which solves this problem and ensures the function of the power transmission means by avoiding http: Hams.zatmeom / sries / se / oase / 1zstzssofrilsoosso / P4l SOOSSOSEOO / Päi 5ÛO860SEÛO__205 5-05 contact rneiian matter bed and kraftappiioeringsdrgan. A second object of the invention is to provide a transmission element intended to be included in such a grate carriage.
    This first object of the invention is achieved by a grate carriage having the features and features set forth in claim 1. Said second object of the invention is achieved by a transmission element having the features and features set forth in claim 11. In the following the invention is described in more detail with an embodiment of shown in the accompanying drawings; on the weekend; In the following, the invention is described in more detail with reference to an embodiment shown in the accompanying drawings; on viika; Fig. Shows a perspective view of a grate trolley in a sintering machine according to the invention.
    Fig. 1A shows in magnification a power transmission means included in the grid carriage in Fig. 1 with a transmission element included therein which is shown for illustrative purposes in cooperation with grate rods, Fig. TB shows a magnification of the transmission element of the power applicator, with the grate rods shown separately, Figs. Fig. 2 shows a sectional view through the grate carriage taken along the line ii-ii in Fig. 1, Fig. 2, Fig. 2 shows a magnification of a portion of a grate included in the grate wagon, side by side in a row of successive grate rods; Fig. 4 shows a magnification of the parts of the power applicator mounted on an outside of a grid carriage, Fig. 4 shows a magnification of the transmission elements of the power means, some parts being shown disassembled and removed to illustrate the power of the power applicator. Fig. 6A-6D shows a front view, a side view, a rear perspective view and a front perspective view of the transmission element of the power applicator.
    The grid carriage 10 shown in Fig. 1 has a material-bearing bottom or surface joined by joined rows of parallel-shaped flat grid rods 12 arranged side by side in a row one after the other to form a coherent package which is uniformly supported by elongate members 14 , A fiertai such package in a row one after the other piidar together a rust, ie. a gas-through-bearing surface has a bottom in each carriage.
    The grate carriage 10 comprises an adjoining rectangular frame 15 which extends the direction of movement of the cross-sintering machine. At the sides, the frame 15 comprises a longitudinal, in http: mims.zaccrscem / sires / sercaser12stzsso / Liisooasa / PM 5ÛG86OSEOGIPM 500860SEO0_201 5-05-25_150525 besk o patentkravdocx 1D 2G 3G 4 grid carriage direction of movement a front and rear wall 18, 19 and a number of intermediate walls 20, said gables and walls being made of heat-resistant material, preferably steel. The aforementioned ends 16, 17 extend vertically upwards protective walls 21 with the task of collecting and maintaining a material bed on the material-supporting bottom of the carriage. Gables 16, i as the forming part of the frame is provided at a lower end with running rollers or wheels which, by co-operation with rails, make it possible to move a plurality of grate carriages along a path in a sintering machine by means of a chain conveyor or similar power transmission means.
    As can be seen from Fig. 1A and Fig. 4, said elongate pouring means 14 are formed as upper flange portions of said front and rear walls 18, 19 and said intermediate walls 20. Although fig. For the sake of clarity 1 only shows a few grid rods 12, it should be understood that rows of packages of grid rods extending in parallel rows extending in parallel between the newly provided ends 16, 17 of the trolley 10, across the carriage direction of the trolley form a gas-permeable material-bearing surface. Each grate rod 12 comprises a normally cast or forged metal plate. The grate rods 12 are supported in a retaining manner in the carriage by cooperation between the elongate holding members 14 and recesses 22 arranged at the opposite ends or short sides of the grate rods 12. Fig. 1D shows a second space 4G arranged in each end 16, 17 of the grate carriage 1G, designed as a recess or depression into a flat surface. The second space 40 is bounded by a bottom 40A, a front and rear wall 4GB, 400, and opposite side walls 4OD. The front wall 4GB has an opening or passage 42 with which the first and second spaces 30, 40 communicate with each other. The second space 40 has been given such dimensions that a grate slave 12 can be mounted in the grate carriage by means of an access opening 40: 1 can be lowered into the second space and then fitted on partially elongated needle members 14 by sliding forward on them into the first space 30. Rust rods 12 disassembled from the grate carriage 10 in the reverse manner. 2 ooh 3 are force applying means 5G which may be provided on only one side or as in As best seen in fig. the grate carriage provided with accompanying embodiments on each side of the grate rods 12 arranged in a package so that each force application means 50 exerts a compressive force in a first direction, i.e. l ensk. press force direction illustrated by opposing force arrows in lig. 1 and which is directed from the end of the grate carriage 16, 17 and further towards the package of the grate rods 12 (see also Fig. 2). Through the press chalk in the first direction, the package of grate rods is pressed together against each other from opposite sides. ansv / sms.Zacco.sometimes / basen2st2ssor41soosso / P41BGOSSOSEGDIPM 50086OSEö0__2015-O5-25_15052ö besk o patentkravdoox 5 By efficiently compressing grid rods l2 in each package shown in Fig. 1 gets stuck in the gap and thus prevents the gas flow down the grate carriage and material bed.
    However, it has been found that the function of the force applicators 50 can nevertheless be affected by particles penetrating moving parts of the force applicators. If the force applicators 5G cease to function as intended, of course the risk increases that the gap width between the grate shields and the particles cannot be kept constant. or gets stuck in said gap thereby reducing the flow rate through the material bed.
    According to the force applying means 50, the material bed is insulated from the material bed. In order to avoid the present invention as much as possible, it is essential that even contact with particles in the bed of matter is one of the force applying means 50 mounted on the outside of the grate carriage 10, in a side wall 21 or end for, 17, and designed to act on the pear rods via a pressure coil 51 or piunge through a wall in the trolley. As can be seen. 4 and 5, said pressure piston 51 comprises pressure pistons operating in parallel in pairs.
    A free end of the pressure piston 51 is arranged to cooperate in a force-transmitting manner with a force-transmitting part accommodated in the second space 30. This power-transmitting part comprises a so-called transmission element 52 which in turn is designed for contact and interaction with a grid rod 12 via a front or rear flat main surface 52: 1, 522.lvled said front surface 52: '1 refers to the surface of the transmission element 52 which faces ooh cooperates with a rosfer rod 12 in a package. As shown in Fig. 6G, the front new surface 5221 of the display transmission element 52 has a substantially planar icing or contact surface for achieving good supporting contact with an oncoming grid rod 12 in a package. Level 523 denotes the lateral short sides or opposite ends of the transmission element 52. As shown in Fig. 1 IC ooh flg. 2, said pair of pressure pistons 51 are arranged to run into the second space 4G via openings Sfrf 1 the rear wall 4ÜC. Each pressure piston beer is actuated by a spring means 53 included in the force application means 50 located on the outside of a gable 16, 1 or frame part l the grate carriage, which is best seen in fig.2. l tig. öA-GD, the transmission element 52 is shown in more detail and, as can be seen, comprises a substantially flat metal yoke whose profile shape in the new plane is substantially similar to a grate rod. In the main plane, the transmission element 52 has a lower base portion 52A, an intermediate body portion 525, a top piece 52C with a plane top 529 and a lateral right angle from the main element of the transmission element extending flange portion 52E. The flange portion 525 of the upper 522 extends in a similar manner a distance from the two short sides 523 of the transmission owner and the rear main surface 5222. liite / lama.zatmcomlsilesfsaoass / 12512sso / 41soossc / P41SOOSSOSEOO / Pßll 5008öOSE55555555555555 is provided with a bevelled edge portion 52F having a piano that abuts the top surface 529 of the upper 522.
    When the transmission element 52 is mounted in the grid carriage 1G, the projecting flange portion of the oversize carriage 52423 provides a roof extending in a relatively compressive direction of direction opposite to the carriage side 16, i to provide a cover device as sliding side edge portions of walls 408, 406, 405 defining the second space 40 form a took which protects the pressure coefficient 51 of the force application means 5G in the second space 40 by blocking the access opening 401 to the space from intrusion from the intrusion of the intrusion. It should be understood that the force application means 50 is in a travel transmission connection connected to the receiving device formed by the transmission element 52. in the transverse side edges 5313 of the transmission element 52 are arranged retaining means in the form of recesses 54 whose profile shape substantially corresponds to one of the surface-like profile shapes of the opposite elongate needle members 14 which delimits the first space 3G in the grate carriage. Each recess 54 terminates at the ends of an upper and a lower support jaw 55A, 558, respectively, having opposing piano-parallel support surfaces 56A, 568 which cooperate in a slidably slidably controlled manner with opposite side edges of the elongate hollow member 14 adjacent the abutment. 15 and FIG. In addition, the transmission element 52 is supported on the elongate holding members 14 and is similarly slidably guided as a conventional grid rod 12 along the longitudinal direction of the elongate holding members.
    The transmission element 52 is mounted by being lowered into said second space 4011 via said access opening 4011 and then fitted to the elongate needle means 14 by sliding forwardly thereon towards them towards the first space 30 and in contact with the outermost grate rod 12 in a package. The transmission element 52 is in this case in a position in the opening 42 between the first 30 and the second space 40, which is best seen from the detail enlargement in FIG. The transmission element 52 is disassembled from the grate carriage 10 in the reverse manner.
    The force applying means 50 comprises a unidirectional clamp 50 which biases the pressure element 51 in the first direction (the pressing force direction) towards the package of grate rods, but offers clearance when displacing the transmission element in a direction away from the pressure coil 51. The clamp 60 has a freewheel 51 and is insertable into the corresponding bottom row 61 or recess in the transmission element 52.
    The invention is not limited to the one described above and the box shown in the drawings can be changed and modified in a number of different ways within the scope of the inventive concept stated in the appended claims. vw -ßvavorewtswv exe .. niipv / smszam, wm / siiasfssroasfvwzsizsscmisuossoiP4i50085055551941500855SE50_2015-05-25__1 50525 besk o patentkravdoox
    权利要求:
    Claims (1)
    [1]
    1. tt 7 PATENT CLAIM Roaster trolley (10) intended to carry a material thawed of bulk material to be sintered separately in a traveling furnace or roaster at a sintering machine for heat treatment of aggregated iron-containing particulate material, comprising a package of a plurality of parallel bars arranged in a row in a retaining manner peaceably slidably received in a first space (30) defined between elongate holding means (14) extending between two opposite ends (16, 17) of the grate carriage whereby a heating or heat treatment gas is allowed to pass through the material bed via gaps delimited between the grate set, a rake applicator (50) having a force transmitting member (52) received in a second space (40) one end of the grate carriage or in each end presses the grate rods in the package against each other, characterized in that it comprises a retrieval device connected in motion transmitting means to the rake applicator (5 9) and which device in blocking cooperation with an access opening (40%) to the other space (40) protects the rake applicator from penetration and accumulation of particles from the material bed. Grid trolley according to claim 1, wherein the access opening (4691) of the second space (du) is intended for mounting grid rods (12). Roaster trolley according to one of Claims 1 to 2, in which the covering device is arranged as a projecting overstyoke or roof (525) on the power-transmitting part (52). A grate trolley according to claim 3, wherein the upper piece or the roof (52E) extends from the thicket-overlying part (52) and is arranged to slide on sloping edge portions of walls (4138, 408, 409) delimiting the access opening (52E) of the second space (40). Roaster trolley according to one of Claims 1 to 4, in which the bead-overlying part (52) is accommodated in the second space (du) and transmits press scrubbing to the package of grid rods (12) by the action of a pressure piston (Si) included in the bead applicator (50). according to claim 5, wherein the pressure piston (51) is arranged to run into the second space (40) through an opening (5111) under the action of a spring means (53) included in the rake applicator means (50). : mpvillm: sz-sem.wm / siies / se / oaserl: zslzssc / trsooaso / Pflit 500860SEOOIP415OG86OSEOO_2015-05-25m150525 besk o patentkravdoox 2G 10. 11. 12. 13. 8 Grid carriage according to any one of claims 1 - 5, wherein the first and the second space (30, 40) communicates with each other via an opening or passage (42) and that the rake-transmitting part (52) is slidably guided in a receivedly controlled said opening or passage by cooperation between the elongate needle means (14) in the first the space and recesses (54) arranged in two mutually facing sliding edges or ends of the scrub-transmitting part. The grate carriage according to claims 4 - if, wherein the rake actuating means (50) comprises a unidirectional tensioner (50) which, via the pressure coil (51), tightens the force transmitting part (52) in the direction of the package of grate rods but offers three-way displacement of the force transmitting part . The grate carriage according to claim 8, wherein the unidirectional tensioner (55) comprises an iris of the pressure piston (51) which fits in and is insertable into the corresponding bottom hole (61) or recess in the force-transmitting part (52). A grate carriage according to any one of claims 1 to 9, wherein the second space (40 l in a lateral direction between two opposite sledge walls (4013) has a width which is greater than the corresponding width in the first space (30) between the longitudinal needle-shaped needle means (14) and which width so The force-transmitting part (52) can be fitted to the lye space. displaceable means are slidably received on longitudinally extruded needle means (14) which run parallel between two opposite ends (16, 17) in the grate carriage, characterized in that it is arranged to receive in a displaceable mill needle manner in the grate carriage (15) by cooperating intermediate needle means (54). in two spaced apart ends or short sides of the thicket overlying part (52) and longitudinally extruded hairpin members (14) in the grate carriage. The power transmitting part (52) according to claim 11, wherein the elongate nailed grooves (14) of the grate carriage are common to both the force transmitting part (52) and the grate rods (12). Scrub transfer day (52) according to any one of claims 11 to 12, comprising a metal plate having a lower base day (52A), an intermediate llvpartl (525) and an upper day nttprl / dmszacco.com / slies / se / Case / t2512550 / 41505860 / 13415QÛ8ÖÛSEÜÛ / P41 fifi Üß fifi sEÛtÅßf flfi- ÛÖ-25_150525 besk o patent claim docx 9 (526) equipped with said cross-piece eiier roof (525) wherein in rneiatipiattanshuvudpian the said overatycke eiier roof is wider than the lower base roof. Force transmitting it (52) according to any one of claims 11 to 13, comprising a front one rear rear surface (52: 1; 522) wherein said front front surface is flat while said rear rear surface has a right angle projecting fin portion (52E). 15. Power transmission de! according to the requirement t, wherein the nocturnal means (54) comprise at the ends the socket sides arranged sockets whose prefiirorm corresponds to that of an external fl ansiiknande1G profitferm nos the rndt standing elongated natiar organs (14) in the reeter carriage. . ~ - «“ - ». Wvv .- ^ ~» .v ~ v ~~ »v ~ - rap: f / amezamo.wm / sites / se / casenzsrzssc / ar sansad / Pitt 5008605595 'P41 5008605590301 5-05 -25__150525 patent claim
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    同族专利:
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    SE541160C2|2019-04-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1551586A|SE541160C2|2015-12-03|2015-12-03|Grate wagon with a transmission element at a sintering machine.|SE1551586A| SE541160C2|2015-12-03|2015-12-03|Grate wagon with a transmission element at a sintering machine.|
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