EP0740766B1 - Grating plate arrangement - Google Patents

Grating plate arrangement Download PDF

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Publication number
EP0740766B1
EP0740766B1 EP95937076A EP95937076A EP0740766B1 EP 0740766 B1 EP0740766 B1 EP 0740766B1 EP 95937076 A EP95937076 A EP 95937076A EP 95937076 A EP95937076 A EP 95937076A EP 0740766 B1 EP0740766 B1 EP 0740766B1
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EP
European Patent Office
Prior art keywords
grate
grate plate
plate
carrier
arrangement according
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EP95937076A
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German (de)
French (fr)
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EP0740766A1 (en
Inventor
Karl Von Wedel
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Individual
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Individual
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B21/00Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
    • F27B21/02Sintering grates or tables
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D15/00Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02Cooling
    • F27D15/0206Cooling with means to convey the charge
    • F27D15/0213Cooling with means to convey the charge comprising a cooling grate
    • F27D15/022Cooling with means to convey the charge comprising a cooling grate grate plates

Definitions

  • the invention relates to a grate plate arrangement for step grates the type described in the preamble of claim 1.
  • Such grids are used for cooling or other treatment of bulk goods which are piled on the grate and those through the grate surface provided with blow openings cooling air or another gas is supplied from below.
  • Step grating can be individual grate rows Carry out swinging movement in the longitudinal direction, so that on the Bulk material in rust is cycled forward over the grate is promoted.
  • Front end walls provided on the grate plates form the rear boundary of a level.
  • Open grate plates essentially consist of the one that forms the grate surface and is provided with blowing openings Top wall and a front end wall arranged thereon.
  • the front end wall is part of a box-like structure, which also has a rear wall, side walls and includes a bottom wall, which with an opening is provided for the air supply.
  • the front ones provided on the grate plates of a step End walls can be in the case of non-promoting, fixed step gratings support on the top of the next row of grates, so that here a harmful, the rust resistance and the gap influencing the diarrhea rate is largely avoidable is.
  • sliding grids must be between the front wall and the top of so-called rows of grates that can move against each other Shear gaps are provided to prevent wear and tear to avoid this point. From an exact and if possible narrow calibration of these shear gaps depend among other things on the Resistance to rust and the amount of unintentionally falling through Bulk goods. It is therefore of great importance that To fix the grate plates on the assigned grate carrier that the shear gap even under the highest mechanical and thermal loads remain as unchanged as possible.
  • Clamping devices are used to fasten the grate plates to the grate carrier provided on the one hand on the grate plate and on the other hand attack the grate carrier and the grate plate clamp onto the grate support.
  • These jigs need to be in particular to be able to prevent the grate plates from lifting off secure, especially in the case of sliding gratings, a harmful enlargement the thrust column and thus an uncontrolled change to avoid rust resistance and diarrhea.
  • DE-PS 952 785 is a step grate working as a sliding grate described which open, essentially from a Cover wall and a front end wall existing grate plates used.
  • the tensioning device comprises a tie rod, which with its grate plate end at one on the bottom the grate plate arranged hook attacks and with its end on the grate carrier side in a grate carrier wall formed opening penetrates and by means of this end screw nuts are secured. 5 and 6 leave in connection with FIG. 1 without further notice recognize that the assembly of the grate plates extremely difficult is.
  • each individual grate plate must be on one difficult to access space hooked into the hook of the grate plate and passed through the opening of the grate support wall and then using a nut and a lock nut be secured.
  • the assembly is particularly so complicates that it is from below, i.e. executed "overhead" must become. On top of that comes especially with repair work on systems already in use Workplace extremely dirty and generally shortly after the shutdown of the system is also extremely hot, so that Avoidance of health problems for the assembly personnel Cooling times can be waited for and preparatory cleaning work have to be accepted.
  • Another disadvantage is also seen in the fact that at the bottom of the grate plate arranged hook is generally not pourable, so that in a separate operation on the in general cast grate plates must be attached.
  • Page 171 ff. Is a grate plate arrangement, in particular in FIG. 4 described for closed grate plates.
  • the grate plates a grate row are formed with in their side walls Openings threaded on crossbars; on this Cross bars attack hook-like tie rods, the rust-side side End through an opening in a grate girder floor passed through and screwed onto this end Mother is secured.
  • Even with this grate plate arrangement assembly is difficult because the crossbars, in which the tie rods must be hooked in inaccessible and places that are difficult to see, so that the assembly requires a lot of experience.
  • the tensioning device comprises at least one tensioning element, the grate plate end through an opening in the front Reaches through the end wall of the grate plate and with the front end wall side operable clamping devices is.
  • Wedge elements for example, Eccentric gag, screw elements or the like in Consideration.
  • the grate end of the clamping element is provided with suitable anchoring means that are force-transmitting Allow connection to the grate support as shown of the embodiments is described in more detail.
  • the fitter can fix the clamping elements after putting them on Grate plates on the grate support from above, i.e. from the top of the grate tighten her. He has compared to the known Solutions significantly better working conditions, so that he can carry out the assembly work much faster and more precisely can. In addition to the rationalization effect, there is a considerable occupational safety advantage for the assembly personnel, because the clamping device is no longer clamped in one particularly tiring position can be performed overhead got to.
  • the function of the grate is through the front wall protruding parts of the clamping devices are not affected in any way, as has been shown in tests. Moreover, is it is easily possible to connect the grate plate end with the interacting clamping devices in the front wall of the Sunk grate plate to accommodate. Such grate plates are can then be used without any problems for flat gratings where one behind the other butt the arranged grate plates directly.
  • the clamping elements can basically pressure or expansion elements be between the front wall of the grate plate and Allow the grate support to spread, facing the grate plate the grate carrier forward against suitable contact surfaces tension, or tension elements that the grate plate opposite the Pull the grate carrier backwards against suitable contact surfaces.
  • clamping devices Configurations There are numerous different ones for the clamping devices Configurations conceivable.
  • the anchoring means with the tensioning element integrated into a component such as in a tie rod the state of the art; in other configurations, that the anchoring means as separate, with the Clamping element designed to be connectable to force-transmitting components are, as explained using exemplary embodiments becomes.
  • the anchoring means When using a tensioning element designed as a tension element the anchoring means preferably comprise at least a hook which has a retaining edge formed on the grate carrier engages behind.
  • the actual tensioning element is preferred a simple and inexpensive screw bolt, which over one formed at its grate plate end Screw head or a screw nut that can be screwed onto this end can be excited.
  • the bottom of Rust plate at least partially covering the bottom plate part is the jig; it is a separate component, which is longitudinally displaceable on the underside of the grate plate is arranged, and it is at its grate plate-side end with at least one clamping element and on its grate carrier side Ended with anchoring means.
  • the bottom plate can with side walls of the box-like grate plate a component which is approximately U-shaped in cross section;
  • the side walls are arranged on the grate plate itself and that the bottom plate is formed in on the side walls Longitudinal guides are slidably mounted.
  • the bottom plate from below arranged on the inside of the side walls and the end wall Guide strips can be sealed.
  • the base plate a hook at its grate end and in the area its grate plate end a flange for the power transmission Has engagement of a tension element.
  • the base plate itself is a particularly simple embodiment bent like a hook at its grate end.
  • the grate support is essential box-like with a front and a rear, for Longitudinal direction of the grate plate transversely arranged grate support wall educated; in this case the anchoring means are effective preferably on the front grate support wall.
  • the In the assembled state the grate plate lies at least on the front Grate support wall and is attached to the rear wall pressed in the rear grate girder wall.
  • the back wall of the grate plate on the one hand and the rear grate support wall on the other are preferably equipped with interacting profiles, that hold the grate plate at least in the vertical direction.
  • This Profiles are in a preferred embodiment of the invention as guide profiles running transversely to the longitudinal direction of the grate plate formed which a transverse movement of the grate plate allow, for example, due to thermal expansion However, prevent the grate plate from lifting off the grate carrier.
  • the Clamping devices are preferably only in this case wide-spread that the grate plates only form-fitting on the Grate beams are held so that there is no transverse displacement large forces remain possible.
  • the guide profiles interacting in a wedge-like manner in cross section Active surfaces have such that the grate plate when the Clamping elements are clamped on the grate carrier.
  • the guide profiles interacting in a wedge-like manner in cross section Active surfaces have such that the grate plate when the Clamping elements are clamped on the grate carrier.
  • the clamping element via a spring element against the front wall or against supports the grate carrier. This keeps the tension in the range predetermined by the spring characteristic of the spring element.
  • this is Spring element preferably between the front end wall side and the clamping elements arranged; in a preferred embodiment the spring element is made of a resilient material existing spacers resting on the bulkhead End plate through which the tension element extends. The deflection of this end plate is also at the installation site easily determinable measure of the clamping force.
  • the width of the end plate at least the width of the grate plate corresponds, and that the end plate with a in the vertical direction extending slot for the passage of the Traction element is provided.
  • This configuration results in Possibility to adjust the face plate in the height direction and in this way a calibration of the between the lower edge the face plate and the top of the underlying Adjust the grate plate formed shear gap.
  • An adjustment the faceplate in the vertical direction are preferably the end plate and the end wall with interacting, vertical guide profiles provided that exclude tilting of the end plate.
  • the main point lies Advantage of the present invention in the facilitated Assembly and disassembly of the grate plates.
  • This makes it special also possible with little effort individual damaged or dismantle and destroy destroyed grate plates to replace new grate plates.
  • Not by this advantage to give away that the grate plates of a grate row about like in the case of the magazine "cement-lime-gypsum" mentioned above to be stretched together to form a package is further according to the invention provided that only individual adjacent grate plates, i.e. for example two, three or a small one Group of grate plates arranged next to each other get connected.
  • a bottom plate common to these grate plates is formed are.
  • This base plate can, for example, be the assigned one Roughly grasp group of grate plates and connect in this way in the transverse direction.
  • This arrangement enables it, the grate plates of a grate row on the one hand into a package to clamp together, but on the other hand individual grate plates or to separate grate plate groups from the remaining grate plates, without having to loosen the whole bandage.
  • Fig. 1 shows a in a conventional manner as an air supply channel trained grate support 1, which is in the transverse direction of the grate extends.
  • Be on the grate 1 several grate plates 2 arranged side by side to form a grate row.
  • the grate plates 2 are so-called closed grate plates, i.e. they have in the present embodiment an end wall 3, a bottom wall 4 and side walls, of which only one side wall 5 can be seen in FIG. 1.
  • the grate plates 2 are over one of the Bottom wall 4 uncovered rear area on its underside with the air-guiding grate carrier 1 in connection.
  • the top wall 6 of the grate plate forming the actual grate surface 2 is known per se and therefore not here in more detail with blow openings, preferably Blown slits inclined towards the front.
  • the grate plate 2 is supported with its side walls 5 on the Front wall 7 of the grate support 1, the rear edge 8 the bottom wall 4 sealing on the upper edge of the front wall 7 lies on.
  • the rear edge 9 of the top wall 6 is sealing on the upper edge of the rear wall 10 of the grate support 1.
  • a tensioning device 11 which has a tensioning element 12 and anchoring means 13.
  • the tensioning element 12 is a screw bolt, the grate plate end 14 through an opening 15 in the front end wall 3 of the grate plate 2 protrudes; this grate plate-side end 14 provided with an external thread on which a screw nut 16 can be screwed on.
  • the anchoring means 13 are through one formed on the grate end of the screw bolt Hook 17 formed, which is the top edge of the front wall 7 of the grate support 1 engages behind.
  • the grate plate 2 To assemble the grate plate 2, place it on the grate support 1 hung up and the still untensioned clamping device 11 loose hung on the front wall 7. By tightening the nut 16, the hook 17 is pulled to the front wall 7, wherein the grate plate 2 towards the rear to rest against the rear wall 10 is pushed.
  • the upper Edge 18 of the rear wall 10 on the one hand and the rear end of the Rust carrier, i.e. the rear edge 9 of the top wall 6 on the other hand equipped with interacting profiles the one Allow the grate plates 2 to move transversely with respect to the grate support 1, prevent the grate plates 2 from lifting off. in the executed embodiment have these profiles in cross section wedge-like interacting surfaces 19 and 20, which when clamping the clamping device 11 a the grate plate 2 generate exciting force on the grate support 1.
  • the upper edge 21 of the front wall 7 is analogous to this on the one hand and the hook 17 of the clamping device 11 on the other hand provided with wedge-like active surfaces 22 and 23, the one when clamping the clamping device 11 and the associated grate plate 1 down on the Grate support 1 generate an exciting force.
  • the clamping means of the clamping element 12, i.e. the on the thread screw nut 16 is accessible from the top of the grate, so that the Assembly of the grate plates 2 on the grate support 1 under favorable Working conditions can take place, as already above was carried out.
  • Fig. 2 shows an embodiment that differs from the embodiment 1 essentially only by the configuration the tensioner 211 differs.
  • the clamping element designed as a bolt 212 and the anchoring means designed as hooks 217 213 separate components.
  • the clamping element or the screw bolt 212 protrudes with its grate plate-side end 214 an opening 215 in the front end wall 203 of the grate plate 202 and carries a screw head 216 at this end.
  • the grate end 225 of the bolt 212 is provided with an external thread, which is in a Hooks 217 can be screwed into the threaded hole.
  • Fig. 3 shows an embodiment which differs from that Embodiment of FIG. 2 differs in that the grate plate 302 is an open grate plate. She has in no floor wall in the present case, so that it is opposite the Grate support 301 is not sealed. The cooling air is in In this case, the grate plates 303 over several each Grate rows or air chamber common to the entire grate, as is known per se. There is no need for open grate plates usually also the side walls. In this case supports the front wall reaching to the height of the rear wall 310 307 the grate plate 302 directly and the clamping device reaches through a recess formed in the front wall 307, as shown in dashed lines in Fig. 3.
  • the tensioning device 311 corresponds in all details to FIG Clamping device 211 of FIG. 2, so that it is not repeated here needs to be described.
  • Fig. 4 two are each a grate carrier and arranged thereon Grate rows comprising grate plates are shown.
  • the Arrangement A shown on the right in FIG. 4 is, for example a fixed grate row, the arrangement shown on the left B a Movable grate row of a sliding grate. Otherwise, both are Orders the same.
  • the grate carrier 401 designed as an air duct are several grate plates forming a row of grids next to each other 402 mounted.
  • the grate plates 402 are closed grate plates with a top wall 406, a front end wall 403, Sidewalls 405, of which only one is closed in FIG. 4 a rear wall 426 and a bottom wall 404.
  • one 5 is the bottom wall 404 a separate component, which from below on guide rails 427 or 428 is created, which is on the inside of the Side walls 405 and the end wall 403 are formed, and which with its rear end edge on these insides arranged support lugs (see support lugs 545 in Fig. 5).
  • the bottom wall 4 is also part of the clamping device 411, through which the grate plate 402 is attached to the grate carrier 401 becomes.
  • This jig 411 also includes an as Clamping element 412 serving bolts, which with the Bottom wall 404 interacts.
  • the screw bolt is attached its grate plate side, through an opening 415 in the front end wall 403 protruding end 414 a screw head 416 and at its end on the support side 425 Screw thread 429.
  • the bottom plate 404 carries on its top a flange 430 perpendicular to this a threaded hole into which the screw bolt 412 can be screwed is.
  • the base plate 404 is on its grate carrier side End 431 bent down to a hook 417, which is the upper edge 421 of the front wall 407 of the grate support 401 overlaps.
  • the upper edge 418 is the rear wall 410 on the one hand and the rear wall 426 of the grate plate 402 on the other hand provided with interacting guide profiles, which is a transverse displacement of the grate plate 402 on the grate carrier 401 allow the grate plate 402 to be lifted off, however prevent.
  • the hook 417 on the one hand and the upper edge 421 of the front wall 407 of the grate carrier, on the other hand, are again as in 1 to 3 with wedge-like interacting active surfaces provided when tightening the bolt 412 a pulling the bottom wall 404 down against the grate support Generate force beyond that on the inside of the Sidewalls arranged support lugs (see support lugs 545 in 5) is transferred to the grate plate 402.
  • an end plate 432 is arranged in each case.
  • This end plate 432 is in vertical with one Direction extending slot 433 provided through the bolt 412 reaches through.
  • the width of the faceplate 432 corresponds to the width of the front wall 403, the height the end plate at least approximately the height of this end wall. 4 can be seen by a vertical Adjustment of the end plate 432 of the sliding gap 434 Precisely calibrate the top of the next level.
  • the openings 435 formed in the side walls 405 serve for this purpose, grate plates 402 arranged next to one another to connect with each other by means of screws, for example.
  • FIG. 5 shows a grate plate 502 approximately according to FIG. 4.
  • the in Fig. 4 only schematically shown top wall 406 is in 5 by individual slats 535 replaced that one behind the other on the inside of the side walls 505 trained guide grooves 544 inserted and so be arranged that remain between these blow slots.
  • the bottom wall 504 is a separate one Component, which from below on guide strips 527 or 528 is applied to the inside of the side walls 505 or the front end wall 503 are formed. Moreover is the bottom plate 504 with its front end 531 on the support lugs arranged on the inner sides of the side walls 505 545 so that the grate plate over the bottom wall can be stretched below.
  • the bottom wall 504 is at its grate carrier-side end 531 provided with a hook 517, which is intended to Reaching behind the top edge of the front wall of a grate support, as shown in Fig. 4.
  • a flange 530 On the top of the bottom wall 504 is a flange 530 with a threaded bore 536 arranged, into which a screw bolt can be screwed, which can be directly or externally by means of a threaded head with the interposition of an end plate 532 on the forehead can support wall 503.
  • the face plate 532 is vertical Provide slot 533, that in the already described Vertical adjustment of this end plate 532 allowed.
  • the face plate 532 is also with side, in vertical guide profiles 537, the corresponding, on the front side 503 of the grate plate 502 trained guide profiles 538 interact so that the end plate 532 on the end face 503 at a distance does not tilt and can be moved vertically. To this Way can be done by vertical adjustment of the face plate 532 an exactly parallel to the top of the next step, set precisely calibrated shear gap.
  • Fig. 4 shows two identical grate plates 602 arranged next to one another, which correspond to the grate plate 502 described with reference to FIG. 5.
  • the bottom wall designed as a separate component 604 has a sufficient width, two side by side Cover grate plates 602. Like FIGS. 6 and 7 can be seen, the bottom wall 604 has a lengthways direction running center groove 638 and two side folds 639. Die The central groove has a width a, the width of two adjacent one another Side walls 605 of two side by side Rust plates 602 corresponds. The side folds 639 have one Width b, which corresponds to the width of a side wall 605.
  • the bottom wall 604 is as shown in FIG. 7 from below on two grate plates 602 arranged side by side attached, the center groove 638 the two adjacent Side walls 605 overlaps the two grate plates and connects them together.
  • FIG. 6 shows a double lamella 640, the width of which is sufficient to cover two grate plates arranged side by side.
  • the lamella 635 consists of a die actual grate surface forming cover plate 641, which rests on the upper edges of the side walls 605, and two between the respective side walls 605 of two grate plates 602 downward projections 642, each under the cover plate of the next double slat.
  • extensions 642 are arranged laterally, which in on the inner sides of the side walls 605 formed guide grooves 644 intervention.
  • the extensions 642 of the double lamella 640 include the two adjacent side walls 605 of the two neighboring ones Grate plates 602 on the side and hold them together.
  • FIG. 8 shows one Grid row with several grate plates arranged side by side 802.
  • the actual grate surface is as in the example of Fig. 6 and 7 by double slats 840 and single slats 835 am Margin formed. It can be seen that the one behind the other Slat rows 11 to 15 each in the manner of a Brick masonry around the width of a lamella 835 against each other are laterally offset. In this way, everyone is created Grate plates 802 of a row of grates interconnecting Composite.
  • Fig. 9 shows a grate row structure, in which one as an air duct trained grate support 901 with the bottom walls 904 and the side walls 905 to form an integral component is summarized.
  • This structure becomes a functional one Rust bars complete that between two Side walls 905, a rear cover wall 906 and several slats 935 can be inserted.
  • the front bulkhead 903 9, the function of a grate plate 902 perceiving box formed by an end plate, that formed from above in on the inner sides of the side walls 905 vertical guide grooves is inserted.
  • the front end wall can 903 'applied to the front end faces of the side walls 905 and clamped by means of a clamping device 911.
  • the clamping device 911 corresponding to the tensioning device shown in FIG. 1 11 trained. It consists of a screw bolt, its front, through an opening in the front End wall 903 'protruding end carries a thread that a screw nut 916 can be screwed on. The the rear end of the bolt is bent like a hook and reaches behind the front wall 907 of the grate carrier 901.

Abstract

PCT No. PCT/EP95/04495 Sec. 371 Date Jun. 11, 1996 Sec. 102(e) Date Jun. 11, 1996 PCT Filed Nov. 15, 1995 PCT Pub. No. WO96/16306 PCT Pub. Date May 30, 1996This invention concerns a grate plate arrangement for step grates wherein a plurality of grate plates (2) can be laid side-by-side on to a grate carrier (2) and can each be fixed to the grate carrier by means of a respective clamping device (11) which engages the grate plate and the grate carrier. In this arrangement, the clamping device (11) includes at least one clamping element (12) whose end (14), which is towards the grate plate, engages through an opening (15) in a front end wall (3) of the grate plate (2). The clamping device has clamping means (16) which are actuable from the front end wall side. The other clamping element end, which is towards the grate carrier, is provided with anchoring means (13) for force-transmitting connection to the grate carrier. This arrangement makes it possible for the grate plates to be mounted or dismantled from the top side of the grate, so that the mounting operation can be performed in a more rational fashion and in a better manner from the point of view of maintenance, and industrial health and safety standards.

Description

Die Erfindung betrifft eine Rostplattenanordnung für Stufenroste der im Oberbegriff des Anspruches 1 beschriebenen Art.The invention relates to a grate plate arrangement for step grates the type described in the preamble of claim 1.

Derartige Roste dienen zum Kühlen oder zur anderweitigen Behandlung von Schüttgütern, welche auf den Rost aufgeschüttet werden und denen durch die mit Blasöffnungen versehene Rostfläche von unten Kühlluft oder ein anderes Gas zugeführt wird.Such grids are used for cooling or other treatment of bulk goods which are piled on the grate and those through the grate surface provided with blow openings cooling air or another gas is supplied from below.

Die seitlich nebeneinander auf einem Rostträger angeordneten Rostplatten bilden eine Rostreihe; der gesamte Stufenrost umfaßt mehrere in Längsrichtung hintereinander angeordnete Rostreihen, wobei die Rostplatten jeder Rostreihe die Rostplatten der nächstfolgenden, nach vorne anschließenden Rostreihe schuppenartig überlappen. Bei als sogenannte Schubroste ausgebildeten Stufenrosten können einzelne Rostreihen eine Schwingbewegung in Längsrichtung ausführen, so daß auf dem Rost befindliches Schüttgut taktweise über den Rost nach vorne gefördert wird. An den Rostplatten vorgesehene vordere Stirnwände bilden jeweils die hintere Begrenzung einer Stufe. Die vorstehend definierten Richtungsangaben wie "seitlich nebeneinander", "in Längsrichtung hintereinander", "nach vorne" usw. werden in der folgenden Beschreibung mit Bezug auf den Rost sowie die einzelnen Rostplatten im gleichen Sinne verwendet.The side by side on a grate support Grate plates form a row of grates; the entire step grate covers several rows of grids arranged one behind the other in the longitudinal direction, the grate plates of each grate row the grate plates the next row of grates that follows to the front overlap like a scale. With trained as so-called sliding grates Step grating can be individual grate rows Carry out swinging movement in the longitudinal direction, so that on the Bulk material in rust is cycled forward over the grate is promoted. Front end walls provided on the grate plates form the rear boundary of a level. The Directional information defined above such as "side by side", "one after the other in the longitudinal direction", "to the front" etc. are described in the following description with reference to the Rust and the individual grate plates used in the same sense.

Man unterscheidet zwischen offenen Rostplatten und geschlossen Rostplatten. Offene Rostplatten bestehen im wesentlichen aus der die Rostfläche bildenden, mit Blasöffnungen versehenen Deckwand und einer daran angeordneten vorderen Stirnwand. Bei geschlossenen Rostplatten ist die vordere Stirnwand Teil einer kastenartigen Struktur, die zusätzlich eine Rückwand, Seitenwände sowie eine Bodenwand umfaßt, welche mit einer Öffnung für die Luftzufuhr versehen ist.One differentiates between open grate plates and closed Grate plates. Open grate plates essentially consist of the one that forms the grate surface and is provided with blowing openings Top wall and a front end wall arranged thereon. At closed grate plates, the front end wall is part of a box-like structure, which also has a rear wall, side walls and includes a bottom wall, which with an opening is provided for the air supply.

Die an den Rostplatten einer Stufe vorgesehenen vorderen Stirnwände können sich bei nicht fördernden, festen Stufenrosten auf der Oberseite der nächstfolgenden Rostreihe abstützen, so daß hier ein schädlicher, den Rostwiderstand und die Durchfallrate beeinflußender Spalt weitgehend vermeidbar ist. Bei Schubrosten müssen hingegen zwischen der Stirnwand und der Oberseite gegeneinander beweglicher Rostreihen sogenannte Schubspalte vorgesehen werden, um einen Verschleiß an dieser Stelle zu vermeiden. Von einer exakten und möglichst engen Kalibrierung dieser Schubspalte hängen unter anderem der Rostwiderstand und die Menge des ungewollt durchfallenden Schüttgutes ab. Es ist deshalb von großer Bedeutung, die Rostplatten so auf dem zugeordneten Rostträger zu befestigen, daß die Schubspalte auch unter höchsten mechanischen und thermischen Belastungen möglichst unverändert bleiben.The front ones provided on the grate plates of a step End walls can be in the case of non-promoting, fixed step gratings support on the top of the next row of grates, so that here a harmful, the rust resistance and the gap influencing the diarrhea rate is largely avoidable is. With sliding grids, however, must be between the front wall and the top of so-called rows of grates that can move against each other Shear gaps are provided to prevent wear and tear to avoid this point. From an exact and if possible narrow calibration of these shear gaps depend among other things on the Resistance to rust and the amount of unintentionally falling through Bulk goods. It is therefore of great importance that To fix the grate plates on the assigned grate carrier that the shear gap even under the highest mechanical and thermal loads remain as unchanged as possible.

Zur Befestigung der Rostplatten am Rostträger sind Spannvorrichtungen vorgesehen, welche einerseits an der Rostplatte und andererseits am Rostträger angreifen und die Rostplatte auf den Rostträger spannen. Diese Spannvorrichtungen müssen insbesondere in der Lage sein, die Rostplatten gegen Abheben zu sichern, um vor allem bei Schubrosten eine schädliche Vergrößerung der Schubspalte und damit eine unkontrollierte Veränderung des Rostwiderstandes und der Durchfallrate zu vermeiden.Clamping devices are used to fasten the grate plates to the grate carrier provided on the one hand on the grate plate and on the other hand attack the grate carrier and the grate plate clamp onto the grate support. These jigs need to be in particular to be able to prevent the grate plates from lifting off secure, especially in the case of sliding gratings, a harmful enlargement the thrust column and thus an uncontrolled change to avoid rust resistance and diarrhea.

In der DE-PS 952 785 ist ein als Schubrost arbeitender Stufenrost beschrieben, welcher offene, im wesentlichen aus einer Deckwand und einer vorderen Stirnwand bestehende Rostplatten verwendet. Die Spannvorrichtung umfaßt einen Zuganker, welcher mit seinem rostplattenseitigen Ende an einem an der Unterseite der Rostplatte angeordneten Haken angreift und mit seinem rostträgerseitigen Ende eine in einer Rostträgerwand ausgebildet Öffnung durchsetzt und mittels auf dieses Ende aufschraubbarer Schraubenmuttern gesichert wird. Die Fig. 5 und 6 lassen im Zusammenhang mit der Fig. 1 ohne weiteres erkennen, daß die Montage der Rostplatten äußerst schwierig ist. Die Zuganker jeder einzelnen Rostplatte müssen an einem schwer zugänglichen Platz in den Haken der Rostplatte eingehängt und durch die Öffnung der Rostträgerwand hindurchgeführt sowie anschließend mittels einer Mutter und einer Kontermutter gesichert werden. Die Montage wird insbesondere dadurch erschwert, daß sie von unten, d.h. "über Kopf" ausgeführt werden muß. Dazu kommt, daß vor allem bei Reparaturarbeiten an bereits im Einsatz befindlichen Anlagen dieser Arbeitsplatz extrem schmutzig und im allgemeinen kurz nach dem Abschalten der Anlage auch extrem heiß ist, so daß zur Vermeidung von gesundheitlichen Belastungen des Montagepersonals Abkühlungszeiten abgewartet werden und Reinigungsvorarbeiten in Kauf genommen werden müssen. Ein weiterer Nachteil wird auch darin gesehen, daß der an der Unterseite der Rostplatte angeordnete Haken im allgemeinen nicht gießbar ist, so daß er in einem gesonderten Arbeitsgang an den im allgemeinen gegossenen Rostplatten befestigt werden muß. In DE-PS 952 785 is a step grate working as a sliding grate described which open, essentially from a Cover wall and a front end wall existing grate plates used. The tensioning device comprises a tie rod, which with its grate plate end at one on the bottom the grate plate arranged hook attacks and with its end on the grate carrier side in a grate carrier wall formed opening penetrates and by means of this end screw nuts are secured. 5 and 6 leave in connection with FIG. 1 without further notice recognize that the assembly of the grate plates extremely difficult is. The tie rods of each individual grate plate must be on one difficult to access space hooked into the hook of the grate plate and passed through the opening of the grate support wall and then using a nut and a lock nut be secured. The assembly is particularly so complicates that it is from below, i.e. executed "overhead" must become. On top of that comes especially with repair work on systems already in use Workplace extremely dirty and generally shortly after the shutdown of the system is also extremely hot, so that Avoidance of health problems for the assembly personnel Cooling times can be waited for and preparatory cleaning work have to be accepted. Another disadvantage is also seen in the fact that at the bottom of the grate plate arranged hook is generally not pourable, so that in a separate operation on the in general cast grate plates must be attached.

In der Zeitschrift "Zement-Kalk-Gips, Nr. 4/1992 (45. Jhrg.), Seite 171 ff. ist insbesondere in Fig. 4 eine Rostplattenanordnung für geschlossene Rostplatten beschrieben. Die Rostplatten einer Rostreihe werden mit in deren Seitenwänden ausgebildeten Öffnungen auf Querstangen aufgefädelt; an diesen Querstangen greifen hakenartige Zuganker an, deren rostträgerseitiges Ende durch eine Öffnung in einer Rostträgerbodenwand hindurchgeführt und mittels einer auf dieses Ende aufschraubbaren Mutter gesichert ist. Auch bei dieser Rostplattenanordnung ist die Montage dadurch erschwert, daß die Querstangen, in die die Zuganker eingehängt werden müssen, an unzugänglichen und schlecht einsehbaren Stellen liegen, so daß die Montage sehr viel Erfahrung erfordert. Außerdem besteht auch hier das Problem, daß die Montagearbeiten über Kopf ausgeführt und insbesondere bei Reparaturarbeiten an bereits im Einsatz befindlichen Anlagen unter schmutzigen und heißen Arbeitsbedingungen durchgeführt werden müssen. Ein weiterer Nachteil ist, daß die Biegefestigkeit derartiger Querstangen bei vertretbaren Querschnittsabmessungen im allgemeinen nicht ausreicht, um die Rostplatten sicher gegen Abheben zu sichern.In the magazine "Zement-Kalk-Gips, No. 4/1992 (45th year), Page 171 ff. Is a grate plate arrangement, in particular in FIG. 4 described for closed grate plates. The grate plates a grate row are formed with in their side walls Openings threaded on crossbars; on this Cross bars attack hook-like tie rods, the rust-side side End through an opening in a grate girder floor passed through and screwed onto this end Mother is secured. Even with this grate plate arrangement assembly is difficult because the crossbars, in which the tie rods must be hooked in inaccessible and places that are difficult to see, so that the assembly requires a lot of experience. There is also here too the problem that the assembly work is carried out overhead and especially when repairing already in Systems in use under dirty and hot working conditions must be carried out. Another The disadvantage is that the bending strength of such cross bars generally not for acceptable cross-sectional dimensions sufficient to secure the grate plates against lifting.

Es ist die Aufgabe der vorliegenden Erfindung, eine sichere Rostplattenanordnung der im Oberbegriff des Anspruches 1 genannten Art zu schaffen, die eine gegenüber den bekannten Lösungen erheblich vereinfachte und verbesserte Montage ermöglicht.It is the object of the present invention to be safe Grate plate arrangement mentioned in the preamble of claim 1 Kind of creating one over the known Solutions significantly simplified and improved assembly.

Die Aufgabe ist erfindungsgemäß durch die im Anspruch 1 beschriebenen Merkmale gelöst.The object is according to the invention described in claim 1 Features resolved.

Die Spannvorrichtung umfaßt wenigstens ein Spannelement, dessen rostplattenseitiges Ende durch eine Öffnung in der vorderen Stirnwand der Rostplatte hindurchgreift und mit von der vorderen Stirnwandseite her betätigbaren Spannmitteln ausgestattet ist. Als Spannmittel kommen beispielsweise Keilelemente, Exzenterknebel, Schraubelemente oder dergleichen in Betracht. Das rostträgerseitige Ende des Spannelementes ist mit geeigneten Verankerungsmitteln versehen, die eine kraftübertragende Verbindung mit dem Rostträger erlauben, wie anhand der Ausführungsbeispiele näher beschrieben wird.The tensioning device comprises at least one tensioning element, the grate plate end through an opening in the front Reaches through the end wall of the grate plate and with the front end wall side operable clamping devices is. Wedge elements, for example, Eccentric gag, screw elements or the like in Consideration. The grate end of the clamping element is provided with suitable anchoring means that are force-transmitting Allow connection to the grate support as shown of the embodiments is described in more detail.

Der Monteur kann die Spannelemente nach dem Aufsetzen der Rostplatten auf den Rostträger von oben, d.h. von der Rostoberseite her festspannen. Er hat dadurch gegenüber den bekannten Lösungen erheblich bessere Arbeitsbedingungen, so daß er die Montagearbeit wesentlich schneller und genauer ausführen kann. Neben dem Rationalisierungseffekt ergibt sich ein erheblicher arbeitsschutztechnischer Vorteil für das Montagepersonal, da das Spannen der Spannmittel nicht mehr in einer besonders ermüdenden Stellung über Kopf durchgeführt werden muß. Die Funktion des Rostes wird durch über die Stirnwand überstehende Teile der Spannvorrichtungen in keiner Weise beeinträchtigt, wie sich in Versuchen gezeigt hat. Überdies ist es ohne weiteres möglich, das rostplattenseitige Ende mit den damit zusammenwirkenden Spannmitteln in der Stirnwand der Rostplatte versenkt unterzubringen. Derartige Rostplatten sind dann ohne weiteres für ebene Roste verwendbar, bei denen hintereinander angeordnete Rostplatten direkt aneinanderstoßen.The fitter can fix the clamping elements after putting them on Grate plates on the grate support from above, i.e. from the top of the grate tighten her. He has compared to the known Solutions significantly better working conditions, so that he can carry out the assembly work much faster and more precisely can. In addition to the rationalization effect, there is a considerable occupational safety advantage for the assembly personnel, because the clamping device is no longer clamped in one particularly tiring position can be performed overhead got to. The function of the grate is through the front wall protruding parts of the clamping devices are not affected in any way, as has been shown in tests. Moreover, is it is easily possible to connect the grate plate end with the interacting clamping devices in the front wall of the Sunk grate plate to accommodate. Such grate plates are can then be used without any problems for flat gratings where one behind the other butt the arranged grate plates directly.

Die Spannelemente können grundsätzlich Druck- bzw. Spreizelemente sein, die sich zwischen die Stirnwand der Rostplatte und den Rostträger spreizen lassen und dabei die Rostplatte gegenüber dem Rostträger nach vorne gegen geeignete Anlageflächen spannen, oder Zugelemente, die die Rostplatte gegenüber dem Rostträger nach hinten gegen geeignete Anlageflächen ziehen. The clamping elements can basically pressure or expansion elements be between the front wall of the grate plate and Allow the grate support to spread, facing the grate plate the grate carrier forward against suitable contact surfaces tension, or tension elements that the grate plate opposite the Pull the grate carrier backwards against suitable contact surfaces.

Für die Spannvorrichtungen sind zahlreiche unterschiedlliche Ausgestaltungen denkbar. In einer besonders einfachen Ausgestaltung sind die Verankerungsmittel mit dem Spannelement zu einem Bauteil integriert, wie etwa bei einem Zuganker gemäß dem Stand der Technik; bei anderen Ausgestaltungen ist vorgesehen, daß die Verankerungsmittel als gesonderte, mit dem Spannelement kraftübertragend verbindbare Bauteile ausgebildet sind, wie anhand von Ausführungsbeispielen noch dargelegt wird.There are numerous different ones for the clamping devices Configurations conceivable. In a particularly simple embodiment are the anchoring means with the tensioning element integrated into a component, such as in a tie rod the state of the art; in other configurations, that the anchoring means as separate, with the Clamping element designed to be connectable to force-transmitting components are, as explained using exemplary embodiments becomes.

Bei Verwendung eines als Zugelement ausgebildeten Spannelementes umfassen die Verankerungsmittel vorzugsweise wenigstens einen Haken, welcher eine am Rostträger ausgebildete Haltekante hintergreift. Das eigentliche Spannelement ist vorzugsweise ein einfacher und preiswerter Schraubenbolzen, welcher über einen an seinem rostplatten- seitigen Ende ausgebildeten Schraubenkopf oder eine auf dieses Ende aufschraubbare Schraubenmutter gespannt werden kann.When using a tensioning element designed as a tension element the anchoring means preferably comprise at least a hook which has a retaining edge formed on the grate carrier engages behind. The actual tensioning element is preferred a simple and inexpensive screw bolt, which over one formed at its grate plate end Screw head or a screw nut that can be screwed onto this end can be excited.

Bei geschlossenen Rostplatten ist gemäß einer weiteren Ausgestaltung der Erfindung vorgesehen, daß die die Unterseite der Rostplatte wenigstens teilweise abdeckende Bodenplatte Teil der Spannvorrichtung ist; sie ist ein gesondertes Bauteil, welches an der Unterseite der Rostplatte längsverschiebbar angeordnet ist, und sie ist an ihrem rostplattenseitigen Ende mit wenigstens einem Spannelement und an ihrem rostträgerseitigen Ende mit Verankerungsmitteln ausgestattet. Die Bodenplatte kann mit Seitenwänden der kastenartigen Rostplatte zu einem im Querschnitt etwa U-förmigen Bauteil integriert sein; in einer anderen Ausgestaltung der Erfindung ist vorgesehen, daß die Seitenwände an der Rostplatte selbst angeordnet sind und daß die Bodenplatte in an den Seitenwänden ausgebildeten Längsführungen längsverschiebbar gelagert ist. In einer besonders einfachen Ausgestaltung ist die Bodenplatte von unten an den Innenseiten der Seitenwände und der Stirnwand angeordnete Führungsleisten dichtend anlegbar.With closed grate plates is according to a further embodiment the invention provided that the the bottom of Rust plate at least partially covering the bottom plate part is the jig; it is a separate component, which is longitudinally displaceable on the underside of the grate plate is arranged, and it is at its grate plate-side end with at least one clamping element and on its grate carrier side Ended with anchoring means. The bottom plate can with side walls of the box-like grate plate a component which is approximately U-shaped in cross section; In another embodiment of the invention, that the side walls are arranged on the grate plate itself and that the bottom plate is formed in on the side walls Longitudinal guides are slidably mounted. In one particularly simple design is the bottom plate from below arranged on the inside of the side walls and the end wall Guide strips can be sealed.

In weiterer Ausgestaltung ist vorgesehen, daß die Bodenplatte an ihrem rostträgerseitigen Ende einen Haken und im Bereich ihres rostplattenseitigen Endes einen Flansch für den kraftübertragenden Eingriff eines Zugelementes aufweist. In einer besonders einfachen Ausführungsform ist die Bodenplatte selbst an ihrem rostträgerseitigen Ende hakenartig abgebogen.In a further embodiment it is provided that the base plate a hook at its grate end and in the area its grate plate end a flange for the power transmission Has engagement of a tension element. In a the base plate itself is a particularly simple embodiment bent like a hook at its grate end.

Bei modernen Rostkonstruktionen ist der Rostträger im wesentlichen kastenartig mit einer vorderen und einer hinteren, zur Längsrichtung der Rostplatte quer angeordneten Rostträgerwand ausgebildet; für diesen Fall greifen die Verankerungsmittel vorzugsweise jeweils an der vorderen Rostträgerwand an. Die Rostplatte liegt im montierten Zustand zumindest auf der vorderen Rostträgerwand auf und wird mit einer Rückwand an die hintere Rostträgerwand angedrückt. Die Rückwand der Rostplatte einerseits und die hintere Rostträgerwand andererseits sind vorzugsweise mit zusammenwirkenden Profilen ausgestattet, die die Rostplatte zumindest in Höhenrichtung halten. Diese Profile sind in einer bevorzugten Ausgestaltung der Erfindung als quer zur Längsrichtung der Rostplatte verlaufende Führungsprofile ausgebildet, welche eine Querbewegung der Rostplatte beispielsweise infolge einer Wärmedehnung erlauben, ein Abheben der Rostplatte vom Rostträger jedoch verhindern. Die Spannvorrichtungen werden für diesen Fall vorzugsweise nur so weit gespannt, daß die Rostplatten nur formschlüssig auf dem Rostträger gehalten werden, so daß eine Querverschiebung ohne große Kräfte möglich bleibt.In modern grate constructions, the grate support is essential box-like with a front and a rear, for Longitudinal direction of the grate plate transversely arranged grate support wall educated; in this case the anchoring means are effective preferably on the front grate support wall. The In the assembled state, the grate plate lies at least on the front Grate support wall and is attached to the rear wall pressed in the rear grate girder wall. The back wall of the grate plate on the one hand and the rear grate support wall on the other are preferably equipped with interacting profiles, that hold the grate plate at least in the vertical direction. This Profiles are in a preferred embodiment of the invention as guide profiles running transversely to the longitudinal direction of the grate plate formed which a transverse movement of the grate plate allow, for example, due to thermal expansion However, prevent the grate plate from lifting off the grate carrier. The Clamping devices are preferably only in this case wide-spread that the grate plates only form-fitting on the Grate beams are held so that there is no transverse displacement large forces remain possible.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß die Führungsprofile im Querschnitt keilartig zusammenwirkende Wirkflächen haben derart, daß die Rostplatte beim Spannen der Spannelemente auf den Rostträger gespannt wird. Analog dazu haben auch beispielsweise die Oberkante eines kastenförmigen Rostträgers übergreifende Haken einerseits und diese Oberkante andererseits keilartig zusammenwirkende Wirkflächen, die beim Spannen der Spannelemente diese und damit auch die Rostplatte nach unten spannen.In a further embodiment of the invention it is provided that the guide profiles interacting in a wedge-like manner in cross section Active surfaces have such that the grate plate when the Clamping elements are clamped on the grate carrier. Similarly also have, for example, the top edge of a box-shaped one Hooks overlapping the grate carrier on the one hand and this upper edge on the other hand, wedge-like interacting surfaces that when tensioning the tensioning elements this and thus the grate plate tension down.

Um definierte Spannkräfte zu gewährleisten, ist in weiterer Ausgestaltung der Erfindung vorgesehen, daß sich das Spannelement über ein Federelement gegen die Stirnwand bzw. gegen den Rostträger abstützt. Damit bleibt die Spannkraft in dem durch die Federkennlinie des Federelementes vorgegebenen Bereich.In order to ensure defined clamping forces, is in further Embodiment of the invention provided that the clamping element via a spring element against the front wall or against supports the grate carrier. This keeps the tension in the range predetermined by the spring characteristic of the spring element.

Bei einem als Zugelement ausgebildeten Spannelement ist das Federelement vorzugsweise zwischen der vorderen Stirnwandseite und den Spannelementen angeordnet; in bevorzugter Ausgestaltung ist das Federelement eine aus einem federnden Material bestehende, über Abstandhalter auf der Stirnwand aufliegende Stirnplatte, durch die das Zugelement hindurchgreift. Die Durchbiegung dieser Stirnplatte ist ein auch am Montageort leicht bestimmbares Maß für die Spannkraft.In the case of a tensioning element designed as a tension element, this is Spring element preferably between the front end wall side and the clamping elements arranged; in a preferred embodiment the spring element is made of a resilient material existing spacers resting on the bulkhead End plate through which the tension element extends. The deflection of this end plate is also at the installation site easily determinable measure of the clamping force.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß die Breite der Stirnplatte zumindest der Breite der Rostplatte entspricht, und daß die Stirnplatte mit einem in Höhenrichtung sich erstreckenden Langloch für den Durchtritt des Zugelementes versehen ist. Diese Ausgestaltung ergibt die Möglichkeit, die Stirnplatte in Höhenrichtung zu verstellen und auf diese Weise eine Kalibrierung des zwischen der Unterkante der Stirnplatte und der Oberseite der darunterliegenden Rostplatte gebildeten Schubspaltes einzustellen. Um eine Verstellung der Stirnplatte in vertikaler Richtung zu erleichtern, sind vorzugsweise die Stirnplatte und die Stirnwand mit zusammenwirkenden, in Höhenrichtung verlaufenden Führungsprofilen versehen, die ein Verkanten der Stirnplatte ausschließen.In a further embodiment of the invention it is provided that the width of the end plate at least the width of the grate plate corresponds, and that the end plate with a in the vertical direction extending slot for the passage of the Traction element is provided. This configuration results in Possibility to adjust the face plate in the height direction and in this way a calibration of the between the lower edge the face plate and the top of the underlying Adjust the grate plate formed shear gap. An adjustment the faceplate in the vertical direction, are preferably the end plate and the end wall with interacting, vertical guide profiles provided that exclude tilting of the end plate.

Wie bereits weiter vorne ausgeführt wurde, liegt der wesentliche Vorteil der vorliegenden Erfindung in der erleichterten Montage und Demontage der Rostplatten. Dadurch wird es insbesondere auch möglich, mit geringem Aufwand einzelne beschädigte oder zerstörte Rostplatten zu demontieren und durch neue Rostplatten zu ersetzen. Um diesen Vorteil nicht dadurch zu verschenken, daß die Rostplatten einer Rostreihe etwa wie im Falle der vorne genannten Zeitschrift "Zement-Kalk-Gips" zu einem Paket zusammengespannt werden, ist weiter erfindungsgemäß vorgesehen, daß jeweils nur einzelne benachbarte Rostplatten, d.h. beispielsweise zwei, drei oder eine kleine Gruppe nebeneinander angeordneter Rostplatten miteinander verbunden werden. Auf diese Weise brauchen zum Ersetzen einer einzelnen Rostplatte jeweils nur die seitlichen Verbindungen zu wenigen anderen Rostplatten gelöst und nach dem Einbau einer neuen Rostplatte wieder hergestellt zu werden. In einer weiteren Ausgestaltung der Erfindung ist vorgesehen, daß die Mittel zum Verbinden einzelner benachbarter Rostplatten durch eine diesen Rostplatten jeweils gemeinsame Bodenplatte gebildet sind. Diese Bodenplatte kann beispielsweise die zugeordnete Gruppe von Rostplatten etwa klammerartig übergreifen und auf diese Weise in Querrichtung miteinander verbinden.As has been said earlier, the main point lies Advantage of the present invention in the facilitated Assembly and disassembly of the grate plates. This makes it special also possible with little effort individual damaged or dismantle and destroy destroyed grate plates to replace new grate plates. Not by this advantage to give away that the grate plates of a grate row about like in the case of the magazine "cement-lime-gypsum" mentioned above to be stretched together to form a package is further according to the invention provided that only individual adjacent grate plates, i.e. for example two, three or a small one Group of grate plates arranged next to each other get connected. This way you need to replace one individual grate plate only the side connections solved to a few other grate plates and after installation to be restored with a new grate plate. In a Another embodiment of the invention provides that the Means for connecting individual adjacent grate plates a bottom plate common to these grate plates is formed are. This base plate can, for example, be the assigned one Roughly grasp group of grate plates and connect in this way in the transverse direction.

Bei Verwendung von Rostplatten, bei denen die eigentliche Rostfläche durch hintereinander zwischen Seitenstege einfügbare Lamellen etwa gemäß der EP 0 549 816 A1 gebildet ist, ist in analoger Weise vorgesehen, daß die Mittel zum seitlichen Verbinden einzelner Rostplatten miteinander durch diesen Rostplatten jeweils gemeinsame Lamellen gebildet sind. Diese Lamellen sind wiederum so ausgebildet, daß sie die seitlich miteinander zu verbindenden Rostplatten klammerartig überdecken. Eine besonders günstige Ausgestaltung ergibt sich dann, wenn die jeweils mehrere Rostplatten überdeckenden Lamellen in der Art eines Ziegelmauerwerkes reihenweise gegeneinander versetzt angeordnet sind. Diese Anordnung ermöglicht es, die Rostplatten einer Rostreihe einerseits zu einem Paket zusammenzuspannen, andererseits aber einzelne Rostplatten oder Rostplattengruppen von den übrigen Rostplatten zu trennen, ohne den ganzen Verband lösen zu müssen.When using grate plates, in which the actual The grate surface can be inserted one behind the other between side bars Slats are formed approximately according to EP 0 549 816 A1, is provided in an analogous manner that the means for lateral Connect individual grate plates with each other through this Grate plates are formed common slats. This Slats are in turn designed so that they laterally Cover the grate plates to be joined together in a clamp-like manner. A particularly favorable embodiment results then when the lamellae, each covering several grate plates in rows in the manner of a brick masonry are staggered. This arrangement enables it, the grate plates of a grate row on the one hand into a package to clamp together, but on the other hand individual grate plates or to separate grate plate groups from the remaining grate plates, without having to loosen the whole bandage.

Mehrere Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und im folgenden näher beschrieben. Es zeigen:

Fig. 1
in einem schematischen Querschnitt einen kastenförmigen Rostträger mit aufgesetzter Rostplatte und mit einer als einteiliger Zuganker ausgebildeten Spannvorrichtung;
Fig. 2
eine Darstellung gemäß Fig. 1, wobei jedoch die Spannvorrichtung aus einem Spannelement und Verankerungsmitteln zusammengesetzt ist;
Fig. 3
eine Darstellung gemäß der Fig. 2, jedoch mit einer nach unten offenen Rostplatte;
Fig. 4
im Querschnitt zwei sich stufenartig überlappende Rostreihen mit geschlossenen Rostplatten, wobei die Bodenwand jeweils Teil der Spannvorrichtung ist;
Fig. 5
in perspektivischer Darstellung Einzelheiten einer Rostplatte etwa gemäß Fig. 4; die eigentliche Rostfläche wird dabei durch zwischen Seitenstege einschiebbare Lamellen gebildet;
Fig. 6
in perspektivischer Darstellung zwei Rostplatten etwa gemäß Fig. 5 mit Einzelheiten des Rostplattenaufbaus;
Fig. 7
einen Querschnitt durch eine Rostplattenanordnung etwa gemäß Fig. 6 entlang der Schnittlinie VII-VII;
Fig. 8
eine Draufsicht auf eine Rostreihe mit einem Aufbau etwa gemäß Fig. 7;
Fig. 9
einen eine Rostreihe bildenden Rostbalken mit einer integralen Verbindung der Rostplatten mit dem Rostträger, wobei die eigentliche Rostfläche durch zwischen Seitenstege der Rostplatten einschiebbare Lamellen gebildet ist.
Several embodiments of the invention are shown in the drawing and described in more detail below. Show it:
Fig. 1
in a schematic cross section a box-shaped grate carrier with a grate plate attached and with a tensioning device designed as a one-piece tie rod;
Fig. 2
a representation of Figure 1, however, the clamping device is composed of a clamping element and anchoring means.
Fig. 3
a representation of Figure 2, but with a grate plate open at the bottom.
Fig. 4
in cross-section two grate rows overlapping in steps with closed grate plates, the bottom wall being part of the clamping device;
Fig. 5
in a perspective view details of a grate plate as shown in FIG. 4; the actual grate surface is formed by slats that can be inserted between side webs;
Fig. 6
a perspective view of two grate plates approximately according to FIG 5 with details of the grate plate structure.
Fig. 7
a cross section through a grate plate arrangement approximately according to FIG 6 along the section line VII-VII.
Fig. 8
a plan view of a grate row with a structure approximately as shown in FIG. 7;
Fig. 9
a grate bar forming a grate row with an integral connection of the grate plates with the grate support, the actual grate surface being formed by slats which can be inserted between side webs of the grate plates.

Fig. 1 zeigt einen in an sich bekannter Weise als Luftzuführungskanal ausgebildeten Rostträger 1, welcher sich in Querrichtung des Rostes erstreckt. Auf den Rostträger 1 werden nebeneinander mehrere Rostplatten 2 zu einer Rostreihe angeordnet. Die Rostplatten 2 sind sogenannte geschlossene Rostplatten, d.h. sie haben im vorliegenden Ausführungsbeispiel eine Stirnwand 3, eine Bodenwand 4 und Seitenwände, von denen in Fig. 1 nur eine Seitenwand 5 zu sehen ist. Nach hinten wird die Rostplatte 2 durch die Rückwand des Rostträgers 1 abgeschlossen. Die Rostplatten 2 stehen über einen von der Bodenwand 4 nicht abgedeckten hinteren Bereich an ihrer Unterseite mit dem luftführenden Rostträger 1 in Verbindung. Die die eigentliche Rostfläche bildende Deckwand 6 der Rostplatte 2 ist in an sich bekannter und deshalb hier nicht näher dargestellter Weise mit Blasöffnungen, vorzugsweise schräg nach vorne geneigten Blasschlitzen versehen.Fig. 1 shows a in a conventional manner as an air supply channel trained grate support 1, which is in the transverse direction of the grate extends. Be on the grate 1 several grate plates 2 arranged side by side to form a grate row. The grate plates 2 are so-called closed grate plates, i.e. they have in the present embodiment an end wall 3, a bottom wall 4 and side walls, of which only one side wall 5 can be seen in FIG. 1. To the rear the grate plate 2 through the rear wall of the grate carrier 1 completed. The grate plates 2 are over one of the Bottom wall 4 uncovered rear area on its underside with the air-guiding grate carrier 1 in connection. The top wall 6 of the grate plate forming the actual grate surface 2 is known per se and therefore not here in more detail with blow openings, preferably Blown slits inclined towards the front.

Die Rostplatte 2 stützt sich mit ihren Seitenwänden 5 auf der Vorderwand 7 des Rostträgers 1 ab, wobei der hintere Rand 8 der Bodenwand 4 dichtend auf der Oberkante der Vorderwand 7 aufliegt. Der hintere Rand 9 der Deckwand 6 liegt abdichtend auf der oberen Kante der Rückwand 10 des Rostträgers 1 auf.The grate plate 2 is supported with its side walls 5 on the Front wall 7 of the grate support 1, the rear edge 8 the bottom wall 4 sealing on the upper edge of the front wall 7 lies on. The rear edge 9 of the top wall 6 is sealing on the upper edge of the rear wall 10 of the grate support 1.

Zur Befestigung der Rostplatte 2 auf dem Rostträger 1 ist eine Spannvorrichtung 11 vorgesehen, die ein Spannelement 12 und Verankerungsmittel 13 umfaßt. Im Ausführungsbeispiel der Fig. 1 sind das Spannelement 12 und die Verankerungsmittel 13 zu einem einstückigen Bauteil integriert. Das Spannelement 12 ist ein Schraubenbolzen, dessen rostplattenseitiges Ende 14 durch eine Öffnung 15 in der vorderen Stirnwand 3 der Rostplatte 2 hindurchragt; dieses rostplattenseitige Ende 14 ist mit einem Außengewinde versehen, auf das eine Schraubenmutter 16 aufschraubbar ist. Die Verankerungsmittel 13 sind durch einen am rostträgerseitigen Ende des Schraubenbolzens ausgebildeten Haken 17 gebildet, welcher die Oberkante der Vorderwand 7 des Rostträgers 1 hintergreift.For fastening the grate plate 2 on the grate support 1 a tensioning device 11 is provided which has a tensioning element 12 and anchoring means 13. In the embodiment of the 1 are the tensioning element 12 and the anchoring means 13 integrated into a one-piece component. The clamping element 12 is a screw bolt, the grate plate end 14 through an opening 15 in the front end wall 3 of the grate plate 2 protrudes; this grate plate-side end 14 provided with an external thread on which a screw nut 16 can be screwed on. The anchoring means 13 are through one formed on the grate end of the screw bolt Hook 17 formed, which is the top edge of the front wall 7 of the grate support 1 engages behind.

Zur Montage der Rostplatte 2 wird diese auf den Rostträger 1 aufgelegt und die noch ungespannte Spannvorrichtung 11 lose an der Vorderwand 7 eingehängt. Durch Spannen der Schraubenmutter 16 wird der Haken 17 an die Vorderwand 7 gezogen, wobei die Rostplatte 2 nach hinten zur Anlage an die Rückwand 10 geschoben wird. Wie Fig. 1 erkennen läßt, ist die obere Kante 18 der Rückwand 10 einerseits und das hintere Ende des Rostträgers, d.h. der hintere Rand 9 der Deckwand 6 andererseits mit zusammenwirkenden Profilen ausgestattet, die eine Querbewegung der Rostplatten 2 gegenüber dem Rostträger 1 erlauben, ein Abheben der Rostplatten 2 aber verhindern. Im ausgeführten Ausführungsbeispiel haben diese Profile im Querschnitt keilartig zusammenwirkende Wirkflächen 19 bzw. 20, die beim Spannen der Spannvorrichtung 11 eine die Rostplatte 2 auf den Rostträger 1 spannende Kraft erzeugen.To assemble the grate plate 2, place it on the grate support 1 hung up and the still untensioned clamping device 11 loose hung on the front wall 7. By tightening the nut 16, the hook 17 is pulled to the front wall 7, wherein the grate plate 2 towards the rear to rest against the rear wall 10 is pushed. As can be seen in Fig. 1, the upper Edge 18 of the rear wall 10 on the one hand and the rear end of the Rust carrier, i.e. the rear edge 9 of the top wall 6 on the other hand equipped with interacting profiles, the one Allow the grate plates 2 to move transversely with respect to the grate support 1, prevent the grate plates 2 from lifting off. in the executed embodiment have these profiles in cross section wedge-like interacting surfaces 19 and 20, which when clamping the clamping device 11 a the grate plate 2 generate exciting force on the grate support 1.

Analog dazu sind die obere Kante 21 der Vorderwand 7 einerseits und der Haken 17 der Spannvorrichtung 11 andererseits mit keilartig zusammenwirkenden Wirkflächen 22 bzw. 23 versehen, die beim Spannen der Spannvorrichtung 11 eine diese und die damit verbundene Rostplatte 1 nach unten auf den Rostträger 1 spannende Kraft erzeugen.The upper edge 21 of the front wall 7 is analogous to this on the one hand and the hook 17 of the clamping device 11 on the other hand provided with wedge-like active surfaces 22 and 23, the one when clamping the clamping device 11 and the associated grate plate 1 down on the Grate support 1 generate an exciting force.

Die Spannmittel des Spannelementes 12, d.h. die auf das Gewinde des Schraubenbolzens aufschraubbare Schraubenmutter 16 ist von der Oberseite des Rostes her zugänglich, so daß die Montage der Rostplatten 2 auf dem Rostträger 1 unter günstigen Arbeitsbedingungen erfolgen kann, wie weiter vorne bereits ausgeführt wurde.The clamping means of the clamping element 12, i.e. the on the thread screw nut 16 is accessible from the top of the grate, so that the Assembly of the grate plates 2 on the grate support 1 under favorable Working conditions can take place, as already above was carried out.

Die Fig. 2 zeigt eine Ausführungsform, die sich von der Ausführungsform der Fig. 1 im wesentlichen nur durch die Ausgestaltung der Spannvorrichtung 211 unterscheidet. In diesem Fall sind das als Schraubenbolzen ausgebildete Spannelement 212 und die als Haken 217 ausgebildeten Verankerungsmittel 213 getrennte Bauteile. Das Spannelement bzw. der Schraubenbolzen 212 ragt mit seinem rostplattenseitigen Ende 214 durch eine Öffnung 215 in der vorderen Stirnwand 203 der Rostplatte 202 hindurch und trägt an diesem Ende einen Schraubenkopf 216. Fig. 2 shows an embodiment that differs from the embodiment 1 essentially only by the configuration the tensioner 211 differs. In this The case is the clamping element designed as a bolt 212 and the anchoring means designed as hooks 217 213 separate components. The clamping element or the screw bolt 212 protrudes with its grate plate-side end 214 an opening 215 in the front end wall 203 of the grate plate 202 and carries a screw head 216 at this end.

Das rostträgerseitige Ende 225 des Schraubenbolzens 212 ist mit einem Außengewinde versehen, welches sich in eine im Haken 217 ausgebildete Gewindebohrung einschrauen läßt.The grate end 225 of the bolt 212 is provided with an external thread, which is in a Hooks 217 can be screwed into the threaded hole.

Durch Spannen des Schraubenbolzens 212 wird der Haken 217 gegen die Vorderwand 207 gezogen und die Rostplatte 202 mit ihrem hinteren Rand 209 an die Rückwand 210 des Rostträgers 201 gedrückt.By tightening the screw bolt 212, the hook 217 pulled against the front wall 207 and the grate plate 202 with its rear edge 209 to the rear wall 210 of the grate carrier 201 pressed.

Die Ausführungsbeispiele der Fig. 1 und 2 entsprechen modernen Rostkontruktionen mit geschlossenen Rostplatten, bei denen die Kühlluft im wesentlichen nur über die als Luftführungskanäle ausgebildeten Rostträger und die darauf dichtend montierten Rostplatten zugeführt wird.1 and 2 correspond to modern ones Rust control with closed grate plates, at which the cooling air essentially only through the air duct trained grate supports and the seals on them mounted grate plates is fed.

Fig. 3 zeigt ein Ausführungsbeispiel, welches sich von dem Ausführungsbeispiel der Fig. 2 dadurch unterscheidet, daß die Rostplatte 302 eine offene Rostplatte ist. Sie hat im vorliegenden Fall keine Bodenwand, so daß sie gegenüber dem Rostträger 301 nicht abgedichtet ist. Die Kühlluft wird in diesem Fall den Rostplatten 303 über eine jeweils mehreren Rostreihen oder dem gesamten Rost gemeinsame Luftkammer zugeführt, wie an sich bekannt ist. Bei offenen Rostplatten entfallen üblicherweise auch die Seitenwände. In diesem Fall stützt die bis zur Höhe der Rückwand 310 reichende Vorderwand 307 die Rostplatte 302 direkt ab und die Spannvorrichtung greift durch eine in der Vorderwand 307 ausgebildete Aussparung, wie in Fig. 3 gestrichelt dargestellt ist.Fig. 3 shows an embodiment which differs from that Embodiment of FIG. 2 differs in that the grate plate 302 is an open grate plate. She has in no floor wall in the present case, so that it is opposite the Grate support 301 is not sealed. The cooling air is in In this case, the grate plates 303 over several each Grate rows or air chamber common to the entire grate, as is known per se. There is no need for open grate plates usually also the side walls. In this case supports the front wall reaching to the height of the rear wall 310 307 the grate plate 302 directly and the clamping device reaches through a recess formed in the front wall 307, as shown in dashed lines in Fig. 3.

Die Spannvorrichtung 311 entspricht in allen Einzelheiten der Spannvorrichtung 211 der Fig. 2, so daß sie hier nicht nochmals beschrieben zu werden braucht. The tensioning device 311 corresponds in all details to FIG Clamping device 211 of FIG. 2, so that it is not repeated here needs to be described.

In Fig. 4 sind zwei jeweils einen Rostträger sowie darauf angeordnete Rostplatten umfassende Rostreihen dargestellt. Die in Fig. 4 rechts dargestellte Anordnung A ist beispielsweise eine feste Rostreihe, die links dargestellte Anordnung B eine bewegliche Rostreihe eines Schubrostes. Im übrigen sind beide Anordnungen gleich.In Fig. 4 two are each a grate carrier and arranged thereon Grate rows comprising grate plates are shown. The Arrangement A shown on the right in FIG. 4 is, for example a fixed grate row, the arrangement shown on the left B a Movable grate row of a sliding grate. Otherwise, both are Orders the same.

Auf dem als Luftführungskanal ausgebildeten Rostträger 401 sind nebeneinander mehrere eine Rostreihe bildende Rostplatten 402 montiert. Die Rostplatten 402 sind geschlossene Rostplatten mit einer Deckwand 406, einer vorderen Stirnwand 403, Seitenwänden 405, von denen in Fig. 4 jeweils nur eine zu sehen ist, einer Rückwand 426 und einer Bodenwand 404.On the grate carrier 401 designed as an air duct are several grate plates forming a row of grids next to each other 402 mounted. The grate plates 402 are closed grate plates with a top wall 406, a front end wall 403, Sidewalls 405, of which only one is closed in FIG. 4 a rear wall 426 and a bottom wall 404.

Wie insbesondere auch bei der insoweit ähnlich aufgebauten Rostplatte der Fig. 5 zu erkennen ist, ist die Bodenwand 404 ein gesondertes Bauteil, welches von unten an Führungsleisten 427 bzw. 428 angelegt wird, die an den Innenseiten der Seitenwände 405 bzw. der Stirnwand 403 ausgebildet sind, und welches mit seiner hinteren Endkante auf an diesen Innenseiten angeordneten Stütznasen aufliegt (siehe Stütznasen 545 in Fig. 5).As in particular with the similarly constructed one 5 is the bottom wall 404 a separate component, which from below on guide rails 427 or 428 is created, which is on the inside of the Side walls 405 and the end wall 403 are formed, and which with its rear end edge on these insides arranged support lugs (see support lugs 545 in Fig. 5).

Die Bodenwand 4 ist gleichzeitig Teil der Spannvorrichtung 411, durch die die Rostplatte 402 am Rostträger 401 befestigt wird. Diese Spannvorrichtung 411 umfaßt außerdem einen als Spannelement 412 dienenden Schraubenbolzen, welcher mit der Bodenwand 404 zusammenwirkt. Der Schraubenbolzen trägt an seinem rostplattenseitigen, durch eine Öffnung 415 in der vorderen Stirnwand 403 hindurchragenden Ende 414 einen Schraubenkopf 416 und an seinem rostträgerseitigen Ende 425 ein Schraubengewinde 429. Die Bodenplatte 404 trägt an ihrer Oberseite einen zu dieser senkrecht stehenden Flansch 430 mit einer Gewindebohrung, in die der Schraubenbolzen 412 einschraubbar ist. Die Bodenplatte 404 ist an ihrem rostträgerseitigen Ende 431 nach unten zu einem Haken 417 abgebogen, welcher die obere Kante 421 der Vorderwand 407 des Rostträgers 401 übergreift.The bottom wall 4 is also part of the clamping device 411, through which the grate plate 402 is attached to the grate carrier 401 becomes. This jig 411 also includes an as Clamping element 412 serving bolts, which with the Bottom wall 404 interacts. The screw bolt is attached its grate plate side, through an opening 415 in the front end wall 403 protruding end 414 a screw head 416 and at its end on the support side 425 Screw thread 429. The bottom plate 404 carries on its top a flange 430 perpendicular to this a threaded hole into which the screw bolt 412 can be screwed is. The base plate 404 is on its grate carrier side End 431 bent down to a hook 417, which is the upper edge 421 of the front wall 407 of the grate support 401 overlaps.

Durch Spannen des Schraubenbolzens 412 wird die Bodenwand 404 an die Vorderwand 407 des Rostträgers 401 herangezogen, so daß die Rostplatte 402 mit ihrer Rückwand 426 an die Rückwand 410 des Rostträgers 401 angedrückt wird.By tightening the bolt 412, the bottom wall 404 pulled to the front wall 407 of the grate support 401, see above that the grate plate 402 with its rear wall 426 to the rear wall 410 of the grate carrier 401 is pressed.

Wie Fig. 4 erkennen läßt, sind die obere Kante 418 der Rückwand 410 einerseits und die Rückwand 426 der Rostplatte 402 andererseits mit zusammenwirkenden Führungsprofilen versehen, welche eine Querverschiebung der Rostplatte 402 auf dem Rostträger 401 erlauben, ein Abheben der Rostplatte 402 jedoch verhindern.As can be seen in FIG. 4, the upper edge 418 is the rear wall 410 on the one hand and the rear wall 426 of the grate plate 402 on the other hand provided with interacting guide profiles, which is a transverse displacement of the grate plate 402 on the grate carrier 401 allow the grate plate 402 to be lifted off, however prevent.

Der Haken 417 einerseits und die obere Kante 421 der Vorderwand 407 des Rostträgers andererseits sind wiederum wie im Falle der Fig. 1 bis 3 mit keilartig zusammenwirkenden Wirkflächen versehen, die beim Spannen des Schraubenbolzens 412 eine die Bodenwand 404 nach unten gegen den Rostträger ziehende Kraft erzeugen, welche über die an den Innenseiten der Seitenwände angeordneten Stütznasen (siehe Stütznasen 545 in Fig. 5) auf die Rostplatte 402 übertragen wird.The hook 417 on the one hand and the upper edge 421 of the front wall 407 of the grate carrier, on the other hand, are again as in 1 to 3 with wedge-like interacting active surfaces provided when tightening the bolt 412 a pulling the bottom wall 404 down against the grate support Generate force beyond that on the inside of the Sidewalls arranged support lugs (see support lugs 545 in 5) is transferred to the grate plate 402.

Wie die Fig. 4 weiter erkennen läßt, ist zwischen dem Schraubenkopf 416 des Schraubenbolzens 412 und der vorderen Stirnwand 403 der Rostplatte 402 jeweils eine Stirnplatte 432 angeordnet. Diese Stirnplatte 432 ist mit einem in vertikaler Richtung sich erstreckenden Langloch 433 versehen, durch das der Schraubenbolzen 412 hindurchgreift. Die Breite der Stirnplatte 432 entspricht der Breite der Stirnwand 403, die Höhe der Stirnplatte wenigstens annähernd der Höhe dieser Stirnwand. Wie Fig. 4 erkennen läßt, läßt sich durch eine vertikale Verstellung der Stirnplatte 432 der Schubspalt 434 zur Oberseite der jeweils nächsten Stufe exakt kalibrieren.As can be seen from FIG. 4, is between the screw head 416 of the bolt 412 and the front end wall 403 of the grate plate 402, an end plate 432 is arranged in each case. This end plate 432 is in vertical with one Direction extending slot 433 provided through the bolt 412 reaches through. The width of the faceplate 432 corresponds to the width of the front wall 403, the height the end plate at least approximately the height of this end wall. 4 can be seen by a vertical Adjustment of the end plate 432 of the sliding gap 434 Precisely calibrate the top of the next level.

Die in den Seitenwänden 405 ausgebildeten Öffnungen 435 dienen dazu, jeweils nebeneinander angeordnete Rostplatten 402 beispielsweise mittels Schrauben miteinander zu verbinden.The openings 435 formed in the side walls 405 serve for this purpose, grate plates 402 arranged next to one another to connect with each other by means of screws, for example.

Fig. 5 zeigt eine Rostplatte 502 etwa gemäß der Fig. 4. Die in Fig. 4 nur schematisch dargestellte Deckwand 406 ist im Ausführungsbeispiel der Fig. 5 durch einzelne Lamellen 535 ersetzt, die hintereinander in an den Innenseiten der Seitenwände 505 ausgebildete Führungsnuten 544 eingeschoben und so angeordnet werden, daß zwischen diesen Blasschlitze verbleiben. Die letzte, hier nicht dargestellte Lamelle schließt die Rostplatte nach vorne ab und wird mit dieser in geeigneter Weise fest verbunden, wie weiter hinten erläutert wird.FIG. 5 shows a grate plate 502 approximately according to FIG. 4. The in Fig. 4 only schematically shown top wall 406 is in 5 by individual slats 535 replaced that one behind the other on the inside of the side walls 505 trained guide grooves 544 inserted and so be arranged that remain between these blow slots. The last slat, not shown here, closes the Grate plate from the front and with this in a suitable Way firmly connected, as will be explained later.

Die Bodenwand 504 ist wie im Beispiel der Fig. 4 ein gesondertes Bauteil, welches von unten an Führungsleisten 527 bzw. 528 angelegt wird, die an den Innenseiten der Seitenwände 505 bzw. der vorderen Stirnwand 503 ausgebildet sind. Außerdem liegt die Bodenplatte 504 mit ihrem vorderen Ende 531 auf den an den Innenseiten der Seitenwände 505 angeordneten Stütznasen 545 auf, so daß die Rostplatte über die Bodenwand nach unten gespannt werden kann.As in the example in FIG. 4, the bottom wall 504 is a separate one Component, which from below on guide strips 527 or 528 is applied to the inside of the side walls 505 or the front end wall 503 are formed. Moreover is the bottom plate 504 with its front end 531 on the support lugs arranged on the inner sides of the side walls 505 545 so that the grate plate over the bottom wall can be stretched below.

Die Bodenwand 504 ist an ihrem rostträgerseitigen Ende 531 mit einem Haken 517 versehen, welcher dazu bestimmt ist, die Oberkante der Vorderwand eines Rostträgers zu hintergreifen, wie er in Fig. 4 dargestellt ist. Auf der Oberseite der Bodenwand 504 ist ein Flansch 530 mit einer Gewindebohrung 536 angeordnet, in die ein Schraubenbolzen einschraubbar ist, welcher sich mittels eines Gewindekopfes von außen direkt oder unter Zwischenschaltung einer Stirnplatte 532 an der Stirn wand 503 abstützen kann.The bottom wall 504 is at its grate carrier-side end 531 provided with a hook 517, which is intended to Reaching behind the top edge of the front wall of a grate support, as shown in Fig. 4. On the top of the bottom wall 504 is a flange 530 with a threaded bore 536 arranged, into which a screw bolt can be screwed, which can be directly or externally by means of a threaded head with the interposition of an end plate 532 on the forehead can support wall 503.

Die Stirnplatte 532 ist mit einem in vertikaler Richtung verlaufenden Langloch 533 versehen, das in der bereits beschriebenen Weise eine vertikale Verstellung dieser Stirnplatte 532 erlaubt. Die Stirnplatte 532 ist außerdem mit seitlichen, in vertikaler Richtung verlaufenden Führungsprofilen 537 versehen, die mit entsprechenden, an der Stirnseite 503 der Rostplatte 502 ausgebildeten Führungsprofilen 538 so zusammenwirken, daß die Stirnplatte 532 an der Stirnseite 503 mit Abstand verkantungsfrei und vertikal verschiebbar anliegt. Auf diese Weise läßt sich durch vertikale Verstellung der Stirnplatte 532 ein zur Oberseite der nächsten Stufe exakt paralleler, genau kalibrierter Schubspalt einstellen.The face plate 532 is vertical Provide slot 533, that in the already described Vertical adjustment of this end plate 532 allowed. The face plate 532 is also with side, in vertical guide profiles 537, the corresponding, on the front side 503 of the grate plate 502 trained guide profiles 538 interact so that the end plate 532 on the end face 503 at a distance does not tilt and can be moved vertically. To this Way can be done by vertical adjustment of the face plate 532 an exactly parallel to the top of the next step, set precisely calibrated shear gap.

Um den Vorteil der einfachen Montierbarkeit und Demontierbarkeit einzelner Rostplatten nicht dadurch aufzuheben, daß alle Rostplatten einer Rostreihe miteinander zu einem Paket zusammengespannt sind, ist vorgesehen, daß jeweils nur einzelne nebeneinander oder kleine Gruppen von nebeneinander angeordneten Rostplatten miteinander verbunden werden. Anhand der Fig. 4 wurde bereits dargelegt, daß das mittels durch Öffnungen 435 in den Seitenwänden gesteckter Bolzen erfolgen kann. Es läßt sich jedoch ohne weiteres erkennen, daß diese Bolzen an schlecht zugänglichen Stellen montiert werden müssen, was die weiter vorne geschilderten Nachteile mit sich bringt. Fig. 6 zeigt zwei nebeneinander angeordnete gleiche Rostplatten 602, die der anhand der Fig. 5 beschriebenen Rostplatte 502 entsprechen. Die als gesondertes Bauteil ausgeführte Bodenwand 604 hat eine Breite, die ausreicht, zwei nebeneinander angeordnete Rostplatten 602 zu überdecken. Wie die Fig. 6 und 7 erkennen lassen, hat die Bodenwand 604 eine in Längsrichtung verlaufende Mittelnut 638 sowie zwei seitliche Falze 639. Die Mittelnut hat eine Breite a, die der Breite zweier aneinanderliegender Seitenwände 605 von zwei seitlich aneinanderliegenden Rostplatten 602 entspricht. Die Seitenfalze 639 haben eine Breite b, die der Breite einer Seitenwand 605 entspricht. Die Bodenwand 604 wird in der in Fig. 7 dargestellten Weise von unten an zwei nebeneinander angeordnete Rostplatten 602 angesetzt, wobei die Mittelnut 638 die beiden aneinanderliegenden Seitenwände 605 der beiden Rostplatten übergreift und diese miteinander verbindet.To the advantage of easy assembly and disassembly not remove individual grate plates by the fact that all Grate plates of a row of grates clamped together to form a package are, it is provided that only individual side by side or small groups of side by side Grate plates are connected together. Using the Fig. 4 has already been shown that the 435th by means of openings bolts inserted in the side walls can take place. It leaves However, you can easily recognize that these bolts on poorly accessible places must be installed, which the brings disadvantages described above with it. Fig. 6 shows two identical grate plates 602 arranged next to one another, which correspond to the grate plate 502 described with reference to FIG. 5. The bottom wall designed as a separate component 604 has a sufficient width, two side by side Cover grate plates 602. Like FIGS. 6 and 7 can be seen, the bottom wall 604 has a lengthways direction running center groove 638 and two side folds 639. Die The central groove has a width a, the width of two adjacent one another Side walls 605 of two side by side Rust plates 602 corresponds. The side folds 639 have one Width b, which corresponds to the width of a side wall 605. The bottom wall 604 is as shown in FIG. 7 from below on two grate plates 602 arranged side by side attached, the center groove 638 the two adjacent Side walls 605 overlaps the two grate plates and connects them together.

Auf diese Weise müssen zum Demontieren einer einzelnen Rostplatte nur die Spannvorrichtungen dieser Rostplatte sowie der mit dieser über die gemeinsame Bodenplatte verbundenen Rostplatte gelöst werden, um die zu demontierende Rostplatte nach oben abheben und durch eine neue ersetzen zu können.In this way you have to dismantle a single grate plate only the clamping devices of this grate plate and the with this grate plate connected via the common base plate can be loosened to remove the grate plate take off at the top and be replaced by a new one.

Eine andere Möglichkeit, zwei oder auch mehr seitlich nebeneinander angeordnete Rostplatten der in Fig. 6 dargestellten Art miteinander zu verbinden, besteht darin, die einzelnen Lamellen 635 durch Lamellen zu ersetzen, welche zwei oder mehr Rostplatten überdecken und nach Art einer Klammer miteinander verbinden. Fig. 6 zeigt eine Doppellamelle 640, deren Breite ausreicht, zwei nebeneinander angeordnete Rostplatten zu überdecken. Sie besteht ähnlich wie die Lamelle 635 aus einer die eigentliche Rostoberfläche bildenden Deckplatte 641, die auf den Oberkanten der Seitenwände 605 aufliegt, sowie zwei zwischen den jeweiligen Seitenwänden 605 zweier Rostplatten 602 nach unten ragende Fortsätze 642, die jeweils unter die Deckplatte der nächsten Doppellamelle greifen. An den Fortsätzen 642 sind seitlich Leisten 643 angeordnet, die in an den Innenseiten der Seitenwände 605 ausgebildete Führungsnuten 644 eingreifen. Die Fortsätze 642 der Doppellamelle 640 umfassen die beiden aneinanderliegenden Seitenwände 605 der beiden benachbarten Rostplatten 602 seitlich und halten diese zusammen. Another possibility, two or more side by side arranged grate plates of that shown in Fig. 6 Kind of connecting with each other is to connect the individual Replace slats 635 with slats that have two or more Cover the grate plates and clamp together connect. 6 shows a double lamella 640, the width of which is sufficient to cover two grate plates arranged side by side. Like the lamella 635, it consists of a die actual grate surface forming cover plate 641, which rests on the upper edges of the side walls 605, and two between the respective side walls 605 of two grate plates 602 downward projections 642, each under the cover plate of the next double slat. On the extensions 642 strips 643 are arranged laterally, which in on the inner sides of the side walls 605 formed guide grooves 644 intervention. The extensions 642 of the double lamella 640 include the two adjacent side walls 605 of the two neighboring ones Grate plates 602 on the side and hold them together.

Zum Demontieren einer Rostplatte müssen deshalb nur die dieser Rostplatte zugeordneten Doppellamellen entfernt und die zugeordneten Spannvorrichtungen gelöst werden.To dismantle a grate plate, you only have to remove it Removed grate plate assigned double slats and the assigned Clamps are solved.

Um die Rostplatten einer Rostreihe miteinander zu einem Paket verbinden zu können, ohne daß für die Demontage einzelner Rostplatten der gesamte Verband gelöst werden muß, ist eine Anordnung gemäß der Fig. 8 vorgesehen. Die Fig. 8 zeigt eine Rostreihe mit mehreren nebeneinander angeordneten Rostplatten 802. Die eigentliche Rostfläche wird wie im Beispiel der Fig. 6 und 7 durch Doppellamellen 840 sowie Einzellamellen 835 am Seitenrand gebildet. Es ist zu erkennen, daß die hintereinanderliegenden Lamellenreihen 11 bis 15 jeweils nach Art eines Ziegelmauerwerkes um die Breite einer Lamelle 835 gegeneinander seitlich versetzt sind. Auf diese Weise entsteht ein alle Rostplatten 802 einer Rostreihe miteinander zusammenschliessender Verbund.To the grate plates of a grate row together into a package to be able to connect without having to dismantle individual Rust plates the entire dressing needs to be loosened is one Arrangement according to FIG. 8 is provided. 8 shows one Grid row with several grate plates arranged side by side 802. The actual grate surface is as in the example of Fig. 6 and 7 by double slats 840 and single slats 835 am Margin formed. It can be seen that the one behind the other Slat rows 11 to 15 each in the manner of a Brick masonry around the width of a lamella 835 against each other are laterally offset. In this way, everyone is created Grate plates 802 of a row of grates interconnecting Composite.

Fig. 9 zeigt einen Rostreihenaufbau, bei welchem ein als Luftführungskanal ausgebildeter Rostträger 901 mit den Bodenwänden 904 und den Seitenwänden 905 zu einem integralen Bauteil zusammengefaßt ist. Dieser Aufbau wird dadurch zu einem funktionsfähigen Rostbalken vervollständigt, daß zwischen je zwei Seitenwände 905 eine hintere Deckwand 906 sowie mehrere Lamellen 935 eingeschoben werden. Die vordere Stirnwand 903 wird bei dem in Fig. 9 linken, die Funktion einer Rostplatte 902 wahrnehmenden Kasten durch eine Abschlußplatte gebildet, die von oben in an den Innenseiten der Seitenwände 905 ausgebildete vertikale Führungsnuten eingeschoben wird.Fig. 9 shows a grate row structure, in which one as an air duct trained grate support 901 with the bottom walls 904 and the side walls 905 to form an integral component is summarized. This structure becomes a functional one Rust bars complete that between two Side walls 905, a rear cover wall 906 and several slats 935 can be inserted. The front bulkhead 903 9, the function of a grate plate 902 perceiving box formed by an end plate, that formed from above in on the inner sides of the side walls 905 vertical guide grooves is inserted.

Gemäß der vorliegenden Erfindung kann die vordere Stirnwand 903' an die vorderen Stirnflächen der Seitenwände 905 angelegt und mittels einer Spannvorrichtung 911 festgespannt werden. Im dargestellten Ausführungsbeispiel ist die Spannvorrichtung 911 entsprechend der in Fig. 1 dargestellten Spannvorrichtung 11 ausgebildet. Sie besteht aus einem Schraubenbolzen, dessen vorderes, durch eine Öffnung in der vorderen Stirnwand 903' hindurchragendes Ende ein Gewinde trägt, auf das eine Schraubenmutter 916 aufgeschraubt werden kann. Das hintere Ende des Schraubenbolzens ist hakenartig abgebogen und greift hinter die Vorderwand 907 des Rostträgers 901.According to the present invention, the front end wall can 903 'applied to the front end faces of the side walls 905 and clamped by means of a clamping device 911. In the illustrated embodiment, the clamping device 911 corresponding to the tensioning device shown in FIG. 1 11 trained. It consists of a screw bolt, its front, through an opening in the front End wall 903 'protruding end carries a thread that a screw nut 916 can be screwed on. The the rear end of the bolt is bent like a hook and reaches behind the front wall 907 of the grate carrier 901.

Claims (27)

  1. A grate plate arrangement for step grates, comprising a grate plate, a grate carrier, onto which the grate plate can be laid, and a clamping device for fixing the grate plate on the grate carrier, characterised in that the clamping device (11) includes at least one clamping element (12) whose end (14) which is towards the grate plate engages through an opening (15) in a front end wall (3) of the grate plate (2) and is provided with clamping means (16) which are actuable from the front end wall side, and whose end which is towards the grate carrier is provided with anchoring means (13) for force-transmitting connection to the grate carrier.
  2. A grate plate arrangement according to claim 1 characterised in that the anchoring means (13) are integrated with the clamping element (11) to form a component.
  3. A grate plate arrangement according to claim 1 characterised in that the anchoring means (213) are in the form of separate components which can be force-transmittingly connected to the clamping element (212).
  4. A grate plate arrangement according to one of claims 1 to 3 characterised in that, when using a clamping element (12) which is in the form of a tension element, the anchoring means (13) include at least one hook (17) engaging behind a holding edge (21) provided on the grate carrier (1).
  5. A grate plate arrangement according to one of claims 1 to 4 characterised in that the clamping element (12, 112) is a screw bolt with a screw head (216) arranged at the end that is towards the grate plate, or a screw nut (16) which can be screwed on to the end that is towards the grate plate.
  6. A grate plate arrangement according to one of claims 1 to 5 characterised in that the clamping device (411) includes a bottom wall (404) which at least partially covers over the underside of the grate plate (402) and which is arranged longitudinally displaceably thereon and which can be connected at its end towards the grate plate to at least one clamping element (412) and is provided at its end (431) towards the grate carrier with anchoring means (417).
  7. A grate plate arrangement according to claim 6 characterised in that the grate plate (402) has side walls (405) and that the bottom wall (404) is longitudinally displaceably mounted in longitudinal guides (427) provided at the side walls (405).
  8. A grate plate arrangement according to claim 7 characterised in that the bottom wall (404) can be sealingly applied from below against guide bars (427, 428) arranged at the insides of the side walls (405) and the end wall (403).
  9. A grate plate arrangement according to one of claims 6 to 8 characterised in that at its end towards the grate carrier the bottom wall (504) has a hook (518) and in the region of its end towards the grate plate it has a flange (530) for force-transmitting engagement of a tension element.
  10. A grate plate arrangement according to claim 9 characterised in that the bottom wall (404) is bent over in a hook-like configuration (417) at its end towards the grate carrier.
  11. A grate plate arrangement according to one of claims 1 to 10 wherein the grate carrier is of a substantially box-like configuration with front and rear grate carrier walls which are arranged transversely to the longitudinal direction of the grate plate and on to which the grate plate can be laid, characterised in that the anchoring means (13) respectively engage the front grate carrier wall (7).
  12. A grate plate arrangement according to claim 11 characterised in that in the assembled condition the grate plate lies at least on the front grate carrier wall and is pressed with a rear end (9) against the rear grate carrier wall (10).
  13. A grate plate arrangement according to claim 12 characterised in that the rear end of the grate plate (2) on the one hand and the rear grate carrier wall (10) on the other hand are provided with co-operating profiles which determine the relative position of the grate plate (2) and the grate carrier (1 ).
  14. A grate plate arrangement according to claim 13 characterised in that the profiles are in the form of guide profiles which extend transversely relative to the longitudinal direction of the grate plate (2) and which permit a transverse movement of the grate plate (2) and prevent the grate plate (2) from lifting away from the grate carrier (1).
  15. A grate plate arrangement according to claim 14 characterised in that the guide profiles have operative surfaces (19, 20) which co-operate in a wedge-like cross-sectional configuration in such a way that when the clamping elements (12) are tightened the grate plate (2) is pulled on to the grate carrier (1).
  16. A grate plate arrangement according to one of claims 11 to 15 wherein the anchoring means are in the form of hooks characterised in that the hooks (17) engage behind the top edge of the front grate carrier wall (7).
  17. A grate plate arrangement according to claim 16 characterised in that the hooks (17) and the top edge (21) of the front grate carrier wall (7) have operative surfaces (22, 23) which co-operate in a wedge-like cross-sectional configuration in such a way that when the clamping elements (12) are tightened the hooks (17) are pulled on to the grate carrier (2).
  18. A grate plate arrangement according to one of claims 1 to 17 characterised in that bearing against the front end wall side is an end plate (432) which is adjustable in respect of height relative thereto and whose lower edge projects beyond the underside of the grate plate (402).
  19. A grate plate arrangement according to one of claims 1 to 18 characterised in that the clamping element is supported by way of a spring element against the end wall or against the grate carrier.
  20. A grate plate arrangement according to claim 19 characterised in that, in the case of a clamping element (512) which is in the form of a tension element, the spring element (532) is an end plate (532) which comprises a resilient material and which bears by way of spacers (537) against the end wall (503).
  21. A grate plate arrangement according to claim 20 characterised in that the width of the end plate (532) corresponds to the width of the grate plate (502) and that the end plate (532) is provided with a slot (533) extending in the heightwise direction, for the tension element to pass therethrough.
  22. A grate plate arrangement according to claim 21 characterised in that the end plate (532) and the end wall (503) are provided with co-operating guide profiles (537, 538) which extend in the heightwise direction.
  23. A grate plate arrangement according to one of claims 1 to 22 wherein grate plates which are arranged in side-by-side relationship and which form a grate row can be connected together characterised in that there are provided means for connecting respective individual adjacent grate plates (602) of the grate plates forming a grate row.
  24. A grate plate arrangement according to claim 23 characterised in that the means for connecting individual adjacent grate plates (602) are formed by a bottom wall (604) which is respectively common to those grate plates and which is in the form of a separate component and which is longitudinally displaceably mounted on the grate plates.
  25. A grate plate arrangement according to claim 23 or claim 24 with grate plates in which the actual grate surface is formed by a plurality of slat portions which are inserted one behind the other between side limb portions and which leave between them a respective blowing slot characterised in that the means for connecting individual grate plates (602) together are formed by multiple slat portions (640) which are respectively common to said grate plates.
  26. A grate plate arrangement according to claim 25 characterised in that the multiple slat portions (640) which cover over a plurality of grate plates (602) are respectively arranged in rows (11 to 15) in laterally mutually displaced relationship.
  27. A grate plate arrangement as set forth in the classifying portion of claim 25 characterised in that the slat portions (935) are held by a front plate (903') which can be fitted to the front side of a grate plate (902) and which can be clamped to the front side by a clamping element (911) which engages with its end towards the front plate through an opening in the front plate (903') and is provided with clamping means (916) acting on said end, and which can be anchored by its other end to the grate carrier (901).
EP95937076A 1994-11-17 1995-11-15 Grating plate arrangement Expired - Lifetime EP0740766B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4441009 1994-11-17
DE4441009A DE4441009C2 (en) 1994-11-17 1994-11-17 Grate plate arrangement
PCT/EP1995/004495 WO1996016306A1 (en) 1994-11-17 1995-11-15 Grating plate arrangement

Publications (2)

Publication Number Publication Date
EP0740766A1 EP0740766A1 (en) 1996-11-06
EP0740766B1 true EP0740766B1 (en) 2000-03-08

Family

ID=6533520

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95937076A Expired - Lifetime EP0740766B1 (en) 1994-11-17 1995-11-15 Grating plate arrangement

Country Status (19)

Country Link
US (1) US5862906A (en)
EP (1) EP0740766B1 (en)
JP (1) JP3109524B2 (en)
KR (1) KR100270795B1 (en)
CN (1) CN1099018C (en)
AT (1) ATE190393T1 (en)
AU (1) AU692324B2 (en)
BR (1) BR9506616A (en)
CA (1) CA2180367A1 (en)
CZ (1) CZ292127B6 (en)
DE (2) DE4441009C2 (en)
DK (1) DK0740766T3 (en)
ES (1) ES2144641T3 (en)
HU (1) HU219944B (en)
PL (1) PL179002B1 (en)
RU (1) RU2129693C1 (en)
TR (1) TR199501452A2 (en)
TW (1) TW324779B (en)
WO (1) WO1996016306A1 (en)

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WO2003008863A1 (en) 2001-07-17 2003-01-30 Michael Janzer Device and method for constructing a slatted floor consisting of positively connected lamellar structures
DE102004040048A1 (en) * 2004-08-18 2006-02-23 Ikn Gmbh Grate plate arrangement for stepped gratings
DE102004045927A1 (en) * 2004-09-22 2006-03-30 Heike Gerking Method for construction of lamella grate plate is such that during thermal expansion of lamellae their displacement does not lead to deformation of base frame, but deformation is compensated for on other components
DE102009009285A1 (en) 2009-02-17 2010-08-19 Ikn Gmbh A grate plate arrangement

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DE19633969A1 (en) * 1996-08-22 1998-02-26 Karl Von Wedel Grid for material processing e.g. for cement production
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US7406519B2 (en) * 2001-11-13 2008-07-29 Microsoft Corporation Method and system for locking resources in a distributed environment
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US7583429B2 (en) 2004-09-27 2009-09-01 Idc, Llc Ornamental display device
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DE102007019530C5 (en) * 2007-04-25 2018-01-04 Alite Gmbh Method and device for cooling a bulk material layer lying on a conveyor grate
DE102008056468B3 (en) * 2008-11-04 2010-04-29 Fuguma Gmbh Maschinenbau Und Kraftwerkstechnik Sliding plate grating for combustion system that is utilized for combustion of e.g. recycling wood, has set of grating plates including bearing receiver that is supported in clearance-free manner
DK2645034T3 (en) 2012-03-28 2015-08-31 Alite Gmbh Shake element for a shaker cooler
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WO2003008863A1 (en) 2001-07-17 2003-01-30 Michael Janzer Device and method for constructing a slatted floor consisting of positively connected lamellar structures
DE10133973A1 (en) * 2001-07-17 2003-02-06 Michael Janzer Device and method for forming a grate floor consisting of lamellar bodies which are positively connected to one another
DE10133973B4 (en) * 2001-07-17 2004-12-30 Michael Janzer Grate and method for constructing a grate consisting of lamellar bodies which are positively connected to one another
DE102004040048A1 (en) * 2004-08-18 2006-02-23 Ikn Gmbh Grate plate arrangement for stepped gratings
US7219610B2 (en) 2004-08-18 2007-05-22 Ikn Gmbh Grate plate arrangement for step plates
DE102004045927A1 (en) * 2004-09-22 2006-03-30 Heike Gerking Method for construction of lamella grate plate is such that during thermal expansion of lamellae their displacement does not lead to deformation of base frame, but deformation is compensated for on other components
DE102009009285A1 (en) 2009-02-17 2010-08-19 Ikn Gmbh A grate plate arrangement
US8397654B2 (en) 2009-02-17 2013-03-19 Ikn Gmbh Grate plate arrangement
DE102009009285B4 (en) * 2009-02-17 2013-11-28 Ikn Gmbh A grate plate arrangement
DK178560B1 (en) * 2009-02-17 2016-06-20 Ikn Gmbh Risteblok

Also Published As

Publication number Publication date
HU219944B (en) 2001-09-28
CN1099018C (en) 2003-01-15
TR199501452A2 (en) 1996-07-21
CZ292127B6 (en) 2003-08-13
EP0740766A1 (en) 1996-11-06
CN1138895A (en) 1996-12-25
AU3928895A (en) 1996-06-17
HUT74654A (en) 1997-01-28
JPH09511567A (en) 1997-11-18
PL179002B1 (en) 2000-07-31
HU9601876D0 (en) 1996-09-30
TW324779B (en) 1998-01-11
JP3109524B2 (en) 2000-11-20
AU692324B2 (en) 1998-06-04
DE59507962D1 (en) 2000-04-13
DE4441009A1 (en) 1996-05-23
RU2129693C1 (en) 1999-04-27
CA2180367A1 (en) 1996-05-30
DE4441009C2 (en) 2001-03-29
CZ204096A3 (en) 1996-11-13
BR9506616A (en) 1997-09-16
PL315621A1 (en) 1996-11-25
US5862906A (en) 1999-01-26
KR100270795B1 (en) 2000-12-01
WO1996016306A1 (en) 1996-05-30
ATE190393T1 (en) 2000-03-15
MX9602574A (en) 1998-10-31
DK0740766T3 (en) 2000-07-31
KR970700853A (en) 1997-02-12
ES2144641T3 (en) 2000-06-16

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