EP1127982A2 - Device for spreading pre-wetted granular material - Google Patents

Abstract

The spreader for brine and granulate has a spreader plate which is fed with granulate via a scoop (42) which feeds it on to a vibrating plate (62). This is attached to the front of an intermediate tank through which the brine is fed and is flat or has a concave or convex profile, so that granulate flowing from the scoop is driven on to the spreader plate.

Description

The invention relates to a spreading device for spreading of liquid (brine) and granular grit in Form of grit and / or road salt (granules) from a spreading plate, which granulate over a granulate slide and a baffle is fed and one intermediate containers arranged above the spreading disc, which brine is continuously fed during the spreading process and which has an overflow opening, from which brine rising in the intermediate container emerges and down via a liquid guide surface reaches the spreading disc.

It is a spreading device of the generic type for Spreading liquid and granular spreading material known (DE 35 44 060 C2), in which the supply of Granules over a granule slide and a baffle he follows. The granulate comes from a storage container via a downpipe to the granule slide. This Baffle is part of a baffle plate, which in the is essentially provided for a liquid guide surface, which brine is fed to the spreading disc, to cover. This prevents granules from directly gets to the liquid guide surface and there, in particular with lower application rates, can stick and thus a continuous flow of the granules and also the brine is prevented. In the known spreading device is the baffle plate directly on the intermediate container in the area the liquid guide surface arranged. The intermediate container is arranged above the spreading disc. Brine becomes continuous during the spreading process fed. The intermediate container is used to feed the brine provided with an overflow opening from which in the intermediate container ascending brine when reaching the overflow opening exit. The one coming out of the overflow opening Brine passes through the liquid guide surface, which formed by the outer wall of the intermediate container is on the spreading plate. At the same time the spreading disc supplied granulate is thus on the spreading disc mixed with the brine and thus moistened spread on the traffic area to be sprinkled. By moistening the granules, an improved Adhesion of the granules to the substrate reached.

The intermediate container points at the subject of DE 35 44 060 C2 has a frustoconical shape and is concentric arranged to the axis of rotation of the spreading plate, wherein it completely encloses the rotating shaft of the spreading disc.

In the conical outer wall of the intermediate container the overflow opening at a vertical distance above the spreading disc arranged. This overflow opening extends itself in the circumferential direction over a partial area of approximately 90 °. Due to this extensive expansion of the overflow opening becomes the liquid guide surface from the outer surface of the frustoconical housing of the intermediate container is formed, determines and extends accordingly about the same angular range. Because of this frustoconical shape, widened towards the spreader plate the housing wall tends to overflow the liquid to an uncontrolled run in the direction of the spreading disc. The overflow edge of the overflow opening is at the known device furthermore V-shaped, so that with small amounts of brine added a right narrow brine flow along the liquid guiding surface and in the case of extremely large brine quantities, a circumferential width of the brine flow across the entire width of the liquid guide surface is effected. This in turn means that with different supply quantities of brine, these also in different peripheral areas fed to the spreading plate becomes, whereby a uniform mixing of Brine and granulate for different quantities of grit and different mixing ratios are not guaranteed can be. Since the baffle directly with the Intermediate container is connected, this is also the conical Adapted shape of the intermediate container. Consequently has the baffle plate with its baffle surface a conical, curved shape towards the granule slide, whose mean radius of curvature is the mean radial Distance of the impact surface to the axis of rotation of the spreading disc corresponds. This curved design of the baffle or the impact surface becomes a non-uniform Distribution of the granules hitting the impact surface in the circumferential direction, which is particularly the case with small Amounts of spreading material to be insufficient Mixing and thus moistening of the granules with the brine fed in at the same time, since a sometimes considerable part of the granulate not in the area the impact area of the brine reaches the spreading plate.

There is also a spreader with liquid supply known from EP 0 593 996 A1, in which a cylindrical Intermediate container is provided, which is above of the spreading disc and concentrically all round Axis of rotation of the spreading plate is arranged. This cylindrical one The intermediate container has approximately in the circumferential area Granulate slide on an overflow opening, which is elongated trained and with a substantially horizontal extending overflow edge is provided. This Overflow opening extends approximately over a central angle of about 115 °. The one below the overflow opening Cylinder surface forms the liquid guiding surface, through which the emerging from the overflow opening Brine is fed to the spreading disc. To prevent, that the granulated coming from the granule slide Spreading material gets directly onto the liquid guiding surface and can stick there, is also the liquid guide surface approximately in the angular area of the overflow opening covered by an outwardly curved baffle. This The baffle also covers the overflow opening and has a radial distance from the liquid guide surface on. The intermediate tank is used to control the flow rate via an appropriate connection pipe during of the spreading process, brine is continuously supplied, which in the container rises to the overflow edge of the overflow opening and then overflows. To the overflow opening in her Changing the outlet cross section is within the Intermediate container provided a float element, which dependent on the volume flow of the brine supplied different from the supply quantity per unit of time is raised and thus the overflow opening releases differently. With this construction It has been shown that especially at extremely low Amounts of liquid per unit of time on the liquid guide surface due to the surface tension of the brine uneven distribution results. The brine flows even if, for example, they are evenly distributed over the entire circumferential length or width of the overflow opening emerges, from top to bottom to an uncontrolled, narrow band together so that mixing with the granules hitting the spreading plate at the same time is insufficiently guaranteed. Here too is the curvature the baffle or that formed by the baffle Baffle surface, especially with relatively small diameters of the intermediate container and thus a small radius of curvature extremely unfavorable, because here too the impact wall impinging granules uncontrolled in the circumferential direction is distracted. This uncontrolled distraction of the Granules in the circumferential direction become the granules in one much larger circumferential area on the spreading disc brought while the brine at lower application rates is only fed in a narrow band. this means inevitably that a good mixing of the granules with the brine is only guaranteed to a limited extent. Besides, is due to the insufficient precision of the granulate feed the spreading direction of the spreading disc on the spreading disc cannot be determined with sufficient accuracy on the surface.

Accordingly, the invention is based on the object Device for dispensing liquid and granular To design grit in such a way that regardless of the amount of liquid supplied per unit of time The granulate is fed as precisely as possible onto the spreading disc is guaranteed and thus a uniform mixing of the granulate arriving on the spreading disc Brine is guaranteed.

The object is achieved in that the Baffle is flat or a granule slide towards U-shaped bent or arcuate, has an open profile through which the granule slide Coming granulated grit to the spreader is targeted and that the baffle is adjustable and / or exchangeable.

Due to the configuration of the baffle according to the invention will be an appropriate guide of the granule slide coming granules to the spreading plate. This can the baffle of the baffle plate should be flat or a U-shaped or arched towards the granule slide have an open profile. In the event that the baffle Is U-shaped, this profile can be a Circular arc contour or a contour that has been bent several times exhibit. Through this configuration according to the invention the targeted supply of the spreading material to the Scatter plate significantly improved, so that an even Mixing of granules and brine over a wide range Range of supply quantities per unit of time is achievable. The granules hit the "additional" guidance of the Impact surface in a precisely predetermined area the spreading disc, so that in this area too Brine can be supplied in a targeted manner. Another The advantage is that the baffle with its baffle at any radial distance from the axis of rotation of the spreading plate can be arranged because of that Radius of curvature independent of the radial distance to the axis of rotation of the spreading disc and on the other hand but also regardless of the shape of the intermediate container can be trained. Through the alternative or in Combination provided variable adjustability can Baffle in its position relative to the one hand Granulate slide and on the other hand relative to the spreading disc be adjusted. This is also the supply of the granules specifically adjustable in the range in which the brine strikes the spreading disc. Further is through the also replaceable, alternatively or in combination Attachment makes maintenance much easier guaranteed in the event of a fault, since the baffle surface in can be easily replaced. Retrofitting too existing spreaders becomes significant simplified. Furthermore, differently trained Baffles against each other if necessary to be exchanged for the respective purpose also the optimal feeding conditions of the granulate for To create spreading discs.

By design according to claim 2 is a simple Adaptation of the baffle surface to existing operating conditions guaranteed. So the baffle is separated from one another Baffle plate formed above the spreading disc attached to a support device of the spreading disc is. Due to the separate design of the baffle forming baffle is an exchange in the simplest Way feasible. Furthermore can be provided by the Carrying device above the spreading plate the baffle can also be easily retrofitted with its impact surface, because above the spreading disc on each spreading device there are always enough attachment options, without major changes to this spreader carry out subsequent installation of a baffle have to.

This interchangeable design of the baffle plate can according to claim 3 with a material lower abrasion resistance, for example a plastic like polypropylene, making the Manufacturing costs can be significantly reduced. Furthermore Such a material has the advantage that it only has a low tendency to stick to road salts and thus an improved supply of road salt is ensured with small discharge quantities. Can too the baffle on its arranged towards the granule slide Impact surface with such a material with less Tendency to stick to the granules coated his. Instead of a plastic, it goes without saying also a metallic material with corresponding properties imaginable.

To further improve the mixing of granules and brine can be the liquid guiding surface according to claim 4 have several guide grooves, each through Guide bars are separated from each other and by which the brine over the entire width of the liquid guide surface led to the spreading disc in a steady stream becomes. This means that the brine supply is always the same Circumferential area of the spreading disc regardless of the quantity supplied guaranteed, so that especially at low The amount of brine to be mixed is optimal ensured with the granulate reaching the spreading disc is. So it becomes an extremely even distribution the brine over the entire width of the liquid guide surface reached because of the overflow opening escaping brine through the guide grooves evenly from is led up to the spreading disc.

According to claim 5, the overflow opening in a substantially flat container wall of the intermediate container arranged be, with the lower overflow edge essentially runs across the guide grooves. The width of the Overflow edge according to claim 2 is a maximum of 2 mm or it is sharp-edged. Because of this low Wide or sharp-edged design of the overflow edge becomes an optimal overflow flow behavior even with small supply quantities the brine reached so that this even with small quantities evenly on all guide grooves is distributed. This is because the Overflow length across the tank wall due to the low Width of the overflow edge is extremely small and therefore an uneven flow distribution parallel to the container wall or is avoided along the overflow edge. At this point it should be noted that the intermediate container also with a float, as in the publication EP 0 593 996 A1 is described, can be provided that the inlet, especially with low flow rates, over the entire width of the overflow edge or Overflow opening is further improved. Through the level Forming the container wall is the intermediate container too in a simple way with the flat or concave to the granule slide bent baffle plate can be combined.

According to claim 6, the container wall with the overflow opening interchangeable and sealed with the basic housing of the Intermediate container to be connected. Through this configuration can have different container walls on the basic housing with different designs of the guide grooves and the overflow opening provided in a simple manner become. Different designs of both the guide grooves as well as the overflow opening can be dependent of operating conditions may be necessary. So are Known operational conditions, in which mainly large Areas must be sprinkled, such as this is the case at airports. Accordingly, for such operating conditions also require spreading devices, at which large quantities per time unit of grit and therefore also have to be applied by brine. In such conditions, the guide grooves of the guide guide surface have a larger flow cross-section, to safely achieve the desired effect.

Because in this case extremely large application rates of Scattered material can result, for example, from a container wall be provided, in which the overflow grooves of run diverging upwards towards the spreading plate, for a better distribution of the brine on the spreading disc can also be achieved with larger application rates. This better distribution of the brine accordingly also better mixing of the brine the pellet arriving granules reached so that overall an improved spreading result is achieved.

According to claim 7, the overflow opening in the intermediate container assembled state of the container wall by a Cutout in the upper end area of the container wall reached. This recess extends at least over the entire width of the intended liquid guiding surface, so that a supply of the brine to all provided guide grooves is ensured. Furthermore this cut-out makes it extremely simple Production of the overflow opening in the tank wall reached.

According to claim 8, the overflow edge of the overflow opening tapering downwards in the area of the guide grooves Have recesses, which makes different quantities of liquid supplied into the intermediate container an even spreading of the liquid into the Guide grooves is achieved. These recesses can with straight or curved boundary edges be provided. This variable configuration or optional Design of the recesses with straight or curved Boundary edges are essentially of the flow behavior the brine and, accordingly, by the people to be spread Quantities depending on the time unit of the brine.

To ensure an even flow behavior of the brine depending of the conditions of use the guide grooves according to claim 9 an inside directional, arched, rectangular or multiple have an angled contour. Because of these different Embodiments of the guide grooves can in turn Distribution of the liquid and its flow behavior within the individual guide groove influenced and on the intended use can be coordinated.

The configuration according to claim also serves in the same way 10 an even supply of fluid to the Guide grooves for different units of measure per Time unit. This can be done in the upper end area of the guide grooves one or more in each of the guide grooves, the guide grooves with the interior of the intermediate container connecting through holes may be provided. This means, that with slowly increasing liquid level in the Intermediate tank the brine initially at low application rates per unit of time through the through holes Guide grooves are fed evenly. Only with larger ones or extremely large amounts of liquid Brine overflow over the overflow edge of the overflow opening instead, so that even large amounts of brine the guide grooves can be fed safely. It can also be provided that the overflow opening through this Through holes are completely replaced, or that the overflow opening from the through holes in the sense a multi-part overflow opening is formed.

According to claim 11, the through holes, if Several through holes are provided for each guide groove are arranged one above the other in each of the guide grooves his. In this case, the through holes, which are arranged in the upper end region of the guide grooves are larger in diameter than each assigned, underlying through holes. This is an adaptation to different, intended Application rates per unit of time of brine reached. In particular, this favors even spreading the brine in each of the guide grooves.

The configuration according to claim 12 in particular when applying large quantities per unit of time Brine a safe guidance along the liquid guiding surface reached. A cover wall is provided for this, which in the assembled state on the guide bars of the Guide grooves rests so that each of the guide grooves in Interact with the cover wall a separate guide channel forms. This measure allows the liquid flow especially with large discharge quantities Do not tear off the time unit from the liquid guiding surface and reach the spreading plate in an uncontrolled manner because safe guidance in the guide channels to the spreading disc is necessarily guaranteed.

Due to the configuration according to claim 13, the intermediate container in case of possible defects in simple Be exchanged wisely. Furthermore is also retrofitting to existing spreading devices possible, in which no liquid supply was previously provided was. For this purpose, the intermediate container is approximately in the peripheral area the granule slide eccentric to the axis of rotation the spreading disc and arranged as a separate component educated. Because the intermediate container in the peripheral area the granule slide is arranged, the brine too inevitably in the area of the granule slide over the impact surface of the granules reaching the spreading disc fed to the spreading disc. The intermediate container will completely shielded by the baffle so that it is not damaged by impacting granules can. It can also be provided that the baffle is formed by the cover wall itself. Because the cover wall also completely covers the liquid guiding surface, here too there is no disruption to the brine supply expect.

The configuration according to claim 14 makes it simple Adjustment of the intermediate container and the baffle plate to the existing spreading conditions. So can the intermediate container also like the baffle plate above of the spreading disc variably adjustable and exchangeable attached to the support of the spreading disc his. On the one hand, this allows the mixing conditions by adjusting the baffle plate accordingly relative to the intermediate container and also the combination from intermediate container and baffle plate relative to Set spreading disc variably. This can make it easier Way the main direction of spreading material be set by the spreading disc. Besides, will this greatly simplifies maintenance in the event of a malfunction guaranteed because both the intermediate container and the baffle as separate components in a simple manner can be replaced. Retrofitting existing ones Spreading devices are considerably simplified.

Fig. 1

eine perspektivische Explosionsdarstellung eines Prallbleches sowie eines zugeordneten Zwischenbehälters mit Behälterwand und Abdeckwand;

Fig. 2

eine perspektivische Darstellung einer variablen Montageeinrichtung des Prallbleches aus Fig. 1;

Fig. 3

eine Frontansicht sowie eine Draufsicht des oberen Endbereiches der Aussparung der Behälterwand;

Fig. 4

ein Ausführungsbeispiel eines oberen Endbereiches einer Behälterwand in Frontansicht und Draufsicht mit im Bereich der Führungsnuten angeordneten Durchgangsbohrungen;

Fig. 5

ein Ausführungsbeispiel einer Behälterwand, bei welcher die Überlaufkante der Aussparung mit etwa dreiecksförmigen Ausnehmungen versehen ist, wobei gleichzeitig die Führungsnuten dieser Dreiecksform angepaßt sind;

Fig. 6

eine Ausführungsform einer Behälterwand, bei deren Überlaufkante kreisbogenförmige Aussparungen in Kombination mit im Bereich der Führungsnuten angeordneten Durchgangsbohrungen sowie entsprechend dieser Profilierung der Aussparungen angepaßte Führungsnuten vorgesehen sind;

Fig. 7

einen Schnitt durch eine Trennwand, bei welcher im oberen Endbereich zur Bildung einer möglichst schmalen Überlaufkante die Trennwand im Bereich der oberen Überlaufkante abgeschrägt ausgebildet ist;

Fig. 8

einen Schnitt durch eine Behälterwand mit einer abgerundeten Ausführung der Überlaufkante der Überlauföffnung;

Fig. 9

eine Seitenansicht eines Streugerätes mit Streuteller mit montiertem Zwischenbehälter und montierter Prallwand;

Fig. 10

einen Schnitt IX-IX aus Fig. 8;

Fig. 11

verschiedene Ausführungsformen des Prallbleches mit verschiedenen Querschnittsformen;

Fig. 12

eine perspektivische Teilansicht des Zwischenbehälters aus Fig. 1 mit einer weiteren Montagevorrichtung.

The invention is explained in more detail below with the aid of the drawing. It shows:

Fig. 1

a perspective exploded view of a baffle and an associated intermediate container with the container wall and cover wall;

Fig. 2

a perspective view of a variable mounting device of the baffle from Fig. 1;

Fig. 3

a front view and a plan view of the upper end portion of the recess of the container wall;

Fig. 4

an embodiment of an upper end portion of a container wall in front view and plan view with through holes arranged in the region of the guide grooves;

Fig. 5

an embodiment of a container wall in which the overflow edge of the recess is provided with approximately triangular recesses, the guide grooves being adapted to this triangular shape at the same time;

Fig. 6

an embodiment of a container wall, at the overflow edge of which circular arc-shaped recesses are provided in combination with through holes arranged in the region of the guide grooves and guide grooves adapted in accordance with this profiling of the recesses;

Fig. 7

a section through a partition, in which in the upper end region to form the narrowest possible overflow edge, the partition is chamfered in the region of the upper overflow edge;

Fig. 8

a section through a container wall with a rounded design of the overflow edge of the overflow opening;

Fig. 9

a side view of a spreader with spreading plate with mounted intermediate container and mounted baffle;

Fig. 10

a section IX-IX of Fig. 8;

Fig. 11

different embodiments of the baffle plate with different cross-sectional shapes;

Fig. 12

a partial perspective view of the intermediate container from FIG. 1 with a further mounting device.

1 shows an exploded perspective view a baffle plate 2 with an intermediate container 1. The Intermediate container 1 consists of a basic housing 3, one separate container wall 4 and a cover wall 5. The basic housing 3 is essentially cuboid and accordingly has a flat rear wall 6, a flat, top cover wall 7, a flat housing base 8 as well as a flat, rear side wall 9 and a front Sidewall 10 on. The rear side wall 9 is in hers provided with a through hole 11 in the lower end region, to which an inlet nozzle 12 is connected. The inlet connection 12 serves to supply liquid Grit, especially brine, in the interior 13 of the intermediate container 1 and is accordingly in operation via a feed line with a brine reservoir connected, from which the intermediate container 1 via an adjustable pump brine in different, Predeterminable feed quantities per unit time becomes.

There are two on the upper cover wall 7 of the basic housing 3 Assembly cylinders 14 and 15 arranged at their respective A threaded pin 16 or 17 is provided at the upper end which is for the interchangeable assembly of the intermediate container 1 serve on a spreader. This assembly cylinder 14 and 15 with their threaded pins 16 and 17 can for variable connection of the intermediate container 1 with a spreader in its axial length and also adjustable in its angular position be so that the intermediate container 1 is variably adjustable attached to a spreading device above a spreading disc can be. An embodiment of such variably adjustable mounting device is exemplary described further below in FIG. 12.

As further shown in FIG. 1, the upper cover wall 7 forms opposite the two side walls 9 and 10 and the housing base 8 a forward section 18. The container wall 4 is so high in its dimensions of the two side walls 9 and 10 and on the entire Width of the basic housing 3 matched that they are mounted Condition fitting on the front boundary edges the side walls 9 and 10 and the container bottom 8 rests and protrudes below the housing base 8, like this is shown in Fig. 1 by way of example in dashed lines is. To attach the container wall 4 on Basic housing 3 different options are provided. For example, the container wall 4 can be tight welded, glued or screwed to the basic housing his. A screwed training has the advantage that designed differently with the same basic housing Container walls 4 optionally mountable on the basic housing 3 are. In the case of a screw connection, it goes without saying between the container wall 4 and the basic housing 3 in the area of the side walls 9 and 10 and the housing base 8 a corresponding seal is provided.

1 further shows, the container wall 4 in its upper end region on a recess 19, which in assembled state of the container wall 4 on the basic housing 3 in connection with the upper cover wall 7 an overflow opening 20 forms, as in Fig. 1 in dashed lines is shown.

On the outside, the container wall 4 has a plurality of guide grooves 21 on, which is parallel to the two side surfaces 22 and 23 of the container wall 4 run. These guide grooves 21 are separated from one another by guide webs 24 and serve for the even distribution and management of from the overflow opening 20 when the liquid level rises overflowing in the interior 13 of the intermediate container 1 Brine. Through the guide webs 24 or guide grooves 21 a liquid guiding surface 25 is thus formed, through which the emerging liquid grit or the brine over the entire width of the liquid guide surface 25 in a steady flow from top to bottom to be led. To ensure that this fluid flow even with larger ones, from the overflow opening 20 escaping liquid quantities from the liquid guide surface 25 tears off, the cover wall 5 can be provided be, for example, via corresponding Screws 26 screwed onto the intermediate container 1 is. With the cover wall 5 attached, the guide grooves thus form 21 several, in the present embodiment guide channels running parallel from top to bottom, in which the brine to be discharged in one uniform flow across the entire width of the liquid guide surface 25 guided vertically from top to bottom becomes.

Depending on the requirements in the use of the intermediate container 1 can the guide grooves 21 to achieve a even distribution of the brine to a below the Intermediate container 1 arranged spreading plate also from diverging from top to bottom.

Furthermore, the baffle 2 is in operation in front of the cover wall 5 arranged and serves, as below is explained, the supply of granulated grit or granulate to the spreading disc. As can also be seen from FIG. 1 is, the baffle plate in the area of its Top edge of two threaded pins 50 and 51, which at this simple embodiment shown as an example for replaceable installation of the baffle plate 2 serves a support frame of a spreader, as further 9 and 10 will be described below.

An embodiment of a variable type of mounting device for the baffle 2 shows Fig. 2. The mounting device for the baffle 2 consists of a Baffle plate 2, assembly tongue bent towards the front 75. This assembly tongue 75 is together with the Baffle plate 2 rotatable about a vertical axis Bearing bracket 76 connected and can be tightened by Holding nut 77 in the respectively set angular position be fixed. For swiveling the baffle plate 2 by a second one, for example perpendicular to the baffle plate 2 extending pivot axis 78 is the vertically upward directed leg of the bearing bracket 76 rotatable on a Bracket 79 is mounted and can also by a corresponding holding nut (not visible in the drawing) be fixed in the desired swivel position. The Bracket 79 in turn is for example with two Threaded pin 80 and 81 provided, over which the entire Assembly device together with the baffle 2 on the Mounting plate 45 of the spreader 35 releasably attached can be (see Figs. 9 and 10). Through this variable Fastening the baffle plate 2 are different mixing ratios and also areas of impact of granules reachable on the spreading plate 36. The in Fig. 2nd The assembly device shown is only one example for swiveling and rotating fastening of the baffle plate 2 on the spreader 35. There are also others Possibilities, such as ball joint connections or the like.

3 shows the upper end region of the container wall 4 in a front view and a top view. This forms with its recess 19 together with the upper cover wall 7 (shown in broken lines) the overflow opening 20 of the intermediate container 1. In the illustration in FIG. 3 it can also be seen that the guide grooves 21 a Rectangular cross-section. The width of the guide grooves 21 in the present embodiment about 5 to 6 mm, whereas that between the guide grooves 21 provided guide webs 24 a width from approx. 1 to 1.5 mm. Depending on the requirements these dimensions can also be chosen larger or smaller become. This is essentially from the maximum or minimum amount of brine to be applied during use dependent. As can be seen from FIG. 3 in connection with FIG. 7 is below the overflow edge on the back 27 a chamfer in the form of an inclined surface 28 is provided, through which the upper end width of the overflow edge 27 is limited to a maximum of 2 mm. Instead of one A maximum of 2 mm can also be a sharp-edged one Formation of this overflow edge 27 may be provided. By this narrow width or sharp-edged design of the Overflow edge is ever at low application rates Time unit of brine prevents this from becoming uncontrolled in the transverse direction to the actual outflow direction distributed along the overflow edge 27. So that will ensures that the individual guide grooves 21 also evenly with low application rates per unit of time be charged with brine.

To ensure that brine is spread evenly at low Application rates can further improve in any the guide grooves 21 one or more through holes 29, 30 and 31 may be provided. These through holes are, as can be seen from Fig. 4, in each of the Guide grooves 21 arranged one above the other, with the present Embodiment the top through hole 29 is formed larger in diameter than that underlying through hole 30 and this in turn is larger than the lowest through hole 31. Connect these through holes 29, 30 and 31 each of the guide grooves 21 with the interior 13 of the Intermediate container 1 and serve to apply small Intake quantities of brine per unit of time in the corresponding associated guide grooves 21. In the embodiment 4, the guide grooves are also essentially rectangular and also have a width of about 5 mm. The corresponding associated Guide webs 24 are also about 1 to 1.5 mm wide. By the design according to the embodiment 4 can be a simple dosage at low Feed quantities to the respective guide grooves 21 can be achieved. With increasing liquid level in the interior 13 of the intermediate container 1 is also provided that with larger quantities in addition to the flow through the through holes 29, 30 and 31 an overflow is effected via the overflow edge 27 of the recess 19. It is also provided that the through bores 29, 30 and 31 replace the actual overflow opening 20 and thus the overflow opening is formed in several parts. In in this case the recess 19 is not provided.

5 and 6 are two further embodiments the recess 19 of the container wall 4 shown. So is the overflow edge 27/1 of the embodiment according to Fig. 5 in the area of the guide grooves 21/1 each with triangular recesses 32. This too Recesses 32 are used for the targeted supply of brine especially with smaller feed quantities. To be more targeted and more even feeding along the guide grooves 21/1, especially with the smallest feed quantities The guide grooves are the unit of time to ensure 21/1 in the embodiment according to FIG. 5 approximately V-shaped trained so that even the smallest feed quantities are directed vertically from top to bottom. Adapting to this shape of the guide grooves Accordingly, the guide bars 24/1 are 21/1 educated.

6 shows a combination from the guide bores 30 and 31 of FIG. 4 with correspondingly semi-cylindrical recesses 33 which in Area of the respective guide groove 21/2 on the overflow edge 27/2 are provided. The function of this combination from the through bores 30 and 31 and the arcuate Recesses 33 correspond approximately to the function of the cutouts 32 from the embodiment of FIG Fig. 5 and thus also serves for uniform feeding of brine in small quantities in each of the guide grooves 21/2. To with this type of flow supply according to the embodiment of FIG. 6 one possible to achieve optimal flow within the guide grooves 21/2, these guide grooves 21/2 also have an arcuate shape, semi-cylindrical in the present embodiment Cross section on, so that even the smallest quantities targeted at brine through these guide grooves 21/2 be guided vertically downwards. Also are the guide bars 24/2 according to this shape of the guide grooves 21/2 adjusted.

Fig. 8 shows a second embodiment of the upper one Overflow edge 27, in the area of which a rounded inside Edge 34 is provided. This rounded edge 34 has the same function as the chamfer 28 of the exemplary embodiment as shown in Fig. 7. By this rounded edge 34 is also, especially with the smallest feed quantities of brine per unit of time, an optimal distribution of the liquid flow in each of the guide grooves 21 is reached.

9 shows a spreading device 35 with a spreading disc 36, which is rotatable on a mounting device 37 is stored. Above this mounting device 37 is a drive motor 38 is provided, which with the spreading disc 36 via a correspondingly vertically aligned Drive shaft 39 is connected. With this drive motor 38 is the spreading plate 36 in operation the drive shaft 39 is driven in rotation. The mounting device 37 is via a support frame 40 with a downpipe 41 connected, via which granules from a, in the drawing of the reservoir, not shown Spreading plate 36 is promoted. For targeted feeding of the granules on the spreading plate 36 is approximately U-shaped granule slide 42 provided over which directs the granulate coming from the downpipe 41 is supplied to the spreading plate 36.

As can also be seen from FIG. 9, the intermediate container 1 from Fig. 1 eccentric to the axis of rotation 43 of Spreading plate 36 or the drive shaft 39 above the Scatter plates 36 arranged. The intermediate container is included by means of the two assembly cylinders 14 and 15 corresponding mounting nuts 44 replaceable on one Mounting plate 45 of the mounting device 37 attached. In this assembled in Fig. 9 shown in side view State of the intermediate container 1 is the container wall 4 on the end faces of the side walls 9 and 10 as well of the housing base 8 close to and protrudes beyond the basic housing 3 towards the spreading plate 36.

The spreading plate 36 has a central, inner tooth cone 46, in the peripheral region of which the container wall 4 is arranged with its lower end. In the mounting plate 45 are for fastening the mounting cylinder 14 and 15 slots 47 and 48 arranged, the position in Fig. 9 is shown in dashed lines. These slots 47 and 48 are straight in the present embodiment trained so that the intermediate container 1 accordingly the formation of these slots 47 and 48 relative can be adjusted to the spreading plate 36. Through this The position of the impact of the via the liquid guide surface 25 or its guide grooves 21 reaching the tooth cone 46 of the spreading plate 36 Brine can be set variably. This is for example the discharge angle and also the mixing section the brine with the one coming from the granule slide Granulate variably adjustable, depending on the requirements for each application. The slots 47 and 48 can instead of being rectilinear, also arcuate, so that with a displacement of the intermediate container 1 in the circumferential direction also a twist at the same time, for example about the axis of rotation 43 of the drive shaft 39 of the Scatter plates 36 takes place.

Furthermore, the intermediate container 1 is also provided to be pivotally attached to the mounting plate 45. A such mounting option is exemplified in Fig. 12 and corresponds to the present exemplary embodiment essentially the mounting device of the Baffle plate 2 from Fig. 2. The mounting device consists in the illustrated embodiment from a lower with the intermediate container 1 screwed mounting bracket 65, which at its upper end with a parallel to upper top wall 7 of the intermediate container 1 extending Mounting tongue 66 is provided. This mounting tab 66 is together with the intermediate container 1 by a vertical Axis rotatably connected to a bearing bracket 67 and can by tightening the retaining nut 68 in the respectively set Angular position can be fixed. For pivoting the intermediate container 1 by a second one, for example running parallel to the side walls of the intermediate container 1 Swivel axis 69 is the vertically upward Leg of the bearing bracket 67 rotatable on one Bracket 70 mounted and can also by a corresponding holding nut (not visible in the drawing) be fixed in the desired swivel position. The Bracket for its part is, for example, with two threaded pins 71 and 72 provided, over which the entire Assembly device together with the intermediate container 1 the mounting plate 45 of the spreader 35 releasably attached can be. Through this variable attachment of the Intermediate container 1 are different mixing ratios and also areas of impact of brine on the Scatter plates 36 reachable. The one shown in FIG Mounting device is just one example of the swivel and rotatable attachment of the intermediate container to the Spreading device 35. There are also other ways such as ball joints or the like.

10 is the Intermediate container 1 arranged symmetrically to the granule slide 42, so that arriving from the granule slide 42 Granules according to arrows 49 in FIGS. 9 and 10 the spreading plate 36 or the toothed cone 46 supplied becomes. To prevent premature wear and tear on the To prevent container wall 4 attached cover wall 5 the baffle plate 2 already shown in FIG. 1 is provided. This baffle 2 is in the present embodiment immediately in front of the cover wall 5 of the Intermediate container 1 arranged and by means of the threaded pin 50 and 51 also on the mounting plate 45 of the Mounting device 37 attached.

As also shown in Fig. 10 in dashed lines is to attach the baffle plate 2 the mounting plate 45 in this mounting plate 45 as well Elongated holes 52 and 53 are provided, which are tangential Movement of the baffle plate 2 is rectilinear could be. In the event that the elongated holes 47 and 48 for mounting the intermediate container 1 arcuate the elongated holes 52 and 53 can also be formed to assemble the baffle plate 2 arcuate be so that the intermediate container 1 together with the Baffle plate 2 moved and pivoted in the same direction can be. This configuration is the Arrangement of the baffle plate 2 in connection with the intermediate container 1 in a simple manner to the given operating conditions customizable.

By the screw connection shown as an example in FIG. 9 About the threaded pin 50 and 51, the baffle 2 in a simple manner, for example in the advanced Wear, to be replaced. Through this easy exchange of the baffle plate 2 can this also from an inexpensive plastic, such as polypropylene. This has the advantage that especially when using the Material polypropylene which, as shown in Fig. 9, Granules hitting the baffle plate 2 (arrows 49) only a slight tendency to stick to the baffle 62 of the Baffle plate 2 and thus a clumping safe can be excluded. This also ensures that, especially with extremely small discharge quantities of granules per unit of time, a flawless, ensures uniform feed to the spreading plate 36 is. The baffle 2 can itself consist of a metallic material and only its Baffle 62 coated with an appropriate material his.

Different profiles are shown in FIG what manner the baffle plate 2 be designed can. The baffle plate shown on the left in FIG 2/1 on a flat central area 55, at the Side edges of two V-shaped guide webs 56 and 57 are provided. This baffle plate 2/1 can also provided with a coating on its baffle 62/1 his.

In contrast, the embodiment 2/2 of the baffle plate a U-shaped, round shape on the two U-legs 58 and 59 in the assembled state for the granulate slide 42 are directed. The same applies for the two V-shaped on the central region 55 of the baffle plate 2/1 arranged guide webs 56 and 57, which in assembled state also towards the granule slide 42 are directed.

The baffle plate 2/3 has a slightly curved pan shape on, with its upper end edges 60 and 61 also for Granule slide 42 directed towards the assembled state are. The baffles 62/2, 62/3 of the two exemplary embodiments 2/2 and 2/3 of the baffle can with be provided with a "non-stick coating".

Instead of these three embodiments shown as examples the shape of the baffle plate 2 or 2/1, 2/2 and 2/3 further embodiments are conceivable. For example, the baffle plate 2 as a whole be bent several times, with all baffle plates in common is that the respective outer profile edges (the outer edges lying at the top in FIG. 11) always on the Granule slide 42 are aligned radially outwards. This design of the baffle is one extremely precise distribution of the granulate flow to the spreading disc 36 adjustable. The different designs can vary depending on the application and the spread rate can be freely chosen for an optimal feeding of To ensure granulate to the spreading plate.

With such an optimal feeding, at the same time optimal mixing of the granulate slide 42 coming granules with the from the intermediate container or whose container wall ensures 4 coming brine. By this combination of flat or concave Baffle plate is an optimal moisture or Mixing of granules and brine is achieved because of that the impact surface 62, 62/1, 62/2 or 62/3 impinging Granules only slightly deflected in the circumferential direction is and targeted to the spreading plate 36 or its Toothed cone 46 arrives. Through the different setting options both the granule slide 42, as also of the baffle plate 2 together or independently of the intermediate container 1, the entire device is simpler Way to required operating conditions with regard to the to be deployed Quantity of grit and their optimal mixing customizable.

Claims (14)

Spreading device for dispensing liquid (brine) and granular spreading material in the form of grit and / or road salt (granulate) consisting of a spreading disc (36), which granulate via a granulate slide (42) and an impact surface (62, 62/1, 62 / 2, 62/3) and an intermediate container (1) arranged above the spreading plate (36), to which brine is continuously supplied during the spreading process and which has an overflow opening (20) from which brine emerges in the intermediate container (1) and reaches the spreading plate (36) downwards via a liquid guide surface (25),
characterized, that the baffle surface (62, 62/1, 62/2, 62/3) is flat or has an approximately U-shaped bent or arched, open profile towards the granule slide (42), through which the granule slide (42) comes granulated spreading material is specifically supplied to the spreading plate (36) and, that the baffle surface (62, 62/1, 62/2, 62/3) is adjustable and / or replaceable. Device according to claim 1, characterized in that the baffle (62, 62/1, 62/2, 62/3) by one separate baffle plate (2, 2/1, 2/2, 2/3) is formed and that the baffle (2, 2/1, 2/2, 2/3) above of the spreading disc (36) on a carrying device (37, 45) of the spreading plate (36) is attached. Spreading device according to claim 1 or 2, characterized in that the baffle plate (2, 2/1, 2/2, 2/3) consists of a material which has a low adhesion to granules, or
that the baffle plate (2) is coated on its baffle surface (62, 62/1, 62/2, 62/3) facing the granule slide (42) with such a material of low adhesion. Device according to one of claims 1 to 3, characterized characterized in that the liquid guiding surface (25) of the intermediate container (1) a plurality of guide grooves (21, 21/1, 21/2), which each by guide bars (24, 24/1, 24/2) are separated from each other and through which the brine spans the entire width of the Liquid guide surface (25) in a uniform Current is supplied to the spreading plate (36). Spreading device according to claim 4, characterized in that that the overflow opening (20) in a substantially flat container wall (4) of the intermediate container (1) is arranged and essentially one transverse to the guide grooves (21, 21/1, 21/2) has lower overflow edge (27, 27/1, 27/2), which is an extremely small width of maximum 2 mm has or is sharp-edged. Spreading device according to claim 5, characterized in that that the container wall (4) interchangeable and tightly with the basic housing (3) of the intermediate container (1) is connected. Spreading device according to claim 6, characterized in that that the container wall (4) to form the Overflow opening (20) in its assembled state upper end region has a recess (19) which at least over the entire width of the liquid guiding surface (25) extends. Spreading device according to claim 5, 6 or 7, characterized characterized that the overflow edge (27/1, 27/2) the overflow opening (20) in the area of the guide grooves (21/1, 21/1) recesses tapering downwards (32, 33) with straight or curved boundary edges having. Spreading device according to one of claims 4 to 8, characterized in that the guide grooves (21, 21/1, 21/2) an inward arcuate, have a rectangular or multiple angled contour. Spreading device according to one of claims 4 to 9, characterized in that at least in the upper end region of the guide grooves (21, 21/2) in each of the Guide grooves (21, 21/2) one or more, the guide grooves (21, 21/2) with the interior (13) of the intermediate container (1) connecting through holes (29, 30, 31) are provided. Spreading device according to claim 10, characterized in that the through bores (29, 30, 31) in the guide grooves (21, 21/2) are arranged one above the other, and
that the respective upper through bores (29, 30) have a larger diameter than the respectively assigned, underlying through bores (30, 31). Spreading device according to one of claims 4 to 11, characterized in that the guide grooves (21, 21/1, 21/2) with one, on the guide webs (24, 24/1, 24/2) overlying cover wall (5) are and each form a separate guide channel. Spreading device according to one of claims 4 to 12, characterized in that the intermediate container (1) is arranged approximately in the peripheral region of the granulate slide (42) eccentrically to the axis of rotation (43) of the spreading plate (36), and
that the baffle (62, 62/1, 62/2, 62/3) forming baffle (2, 2/1, 2/2, 2/3) is arranged between the intermediate container (1) and the granule slide (42) . Spreading device according to claim 10 or 11, characterized characterized in that the intermediate container (1) above of the spreading disc (36) variably adjustable and exchangeable on the support device (37, 45) of the spreading disc (36) is attached.

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