DE7203989U - Impact nozzle - Google Patents

Description

Helmut Weiste, 4771 Sieningsen Kr. Soest

"Impact nozzle"

The innovation relates to an impact nozzle for pneumatically conveyed solids to be distributed, such as seeds and fertilizer granules or fertilizer dust, with a nozzle arranged at the end of the conveying line and interacting with a baffle plate.

Pneumatically operating distribution devices, in particular for agricultural goods, are used on a large scale today. In this case, the material to be distributed, such as seeds, fertilizer, is fed via a pneumatic conveying device or the like., from a central storage container via a multiple

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number of Ar end hoses to the individual outlet nozzles demanded, essential for this. Orders is that trot7. a relatively large wide spread, a uniform spread is achieved, so that when the device passes through the field can be filled with the material to be distributed as large as possible, but at the same time it is ensured is that the distribution takes place evenly, so that the effect of the goods to be distributed evenly over a large area is ensured. This is of particular importance with the very highly concentrated fertilizer currently in use en, since an overdose of such fertilizers can easily cause burns. can be pr-ovocated.

The previously known designs of such so-called broad jet nozzles for pneumatic conveying lines are in their principle has been taken over exactly by the wide jet nozzles for liquids, whereby it was not taken into account that despite the given Flowability of the solids to be distributed significantly different flow conditions within the delivery pipes and the outlet nozzle appear. The frequent diversions required in agricultural machines present particular difficulties of the individual delivery lines. As even as possible Distribution of the material can be achieved with relatively long, vertically aligned delivery lines, however such lines cannot be implemented in practice without great mechanical effort.

The innovation is therefore based on the task of an impact nozzle

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to create, with the relatively small ¹ . Space an equal Bye ite-Ti distribution of the goods to be distributed is achieved.

This problem on which the innovation is based is achieved by a transition piece between the circular conveying pipe and an outlet nozzle having a rectangular cross-section, which through essentially two the circular pipe cross-section narrowing guide surfaces and two guide surfaces enlarging the circular pipe cross section is formed.

In this case &. <Is preferably omitted that the cross-section enlarge guide surfaces are aligned parallel to the direction of travel.

According to a preferred embodiment of the innovation it is provided that the guide surfaces so together or. diverge so that the cross section of the outlet nozzle is equal to the circular cross section of the delivery line pipe is.

The baffle plate arranged opposite the outlet opening of the outlet nozzle is, according to a further essential feature Feature of the innovation inclined at an angle of approx. 16 to the horizontal, which means that the width is evenly distributed continues to benefit significantly =

The actual baffle plate is preferably rotatable

and arranged to be adjustable on the outlet nozzle, the baffle plate being exchangeable as a wear part on a console may be appropriate.

This arrangement ensures that regardless of the direction of flow or a one-sided flow, i.e. asymmetrical The flow of granules or other solids in the delivery line pipe is precisely symmetrical and very broad Scatter cone is achieved, which ensures an even distribution of the material to be spread on the ground.

An embodiment of the innovation is shown in the drawing. Here shows

1 shows a diagrammatic view of part of a wide spreading spreader designed according to the invention,

Fig. 2 shows a front view of the transition piece and

Fig. 3 is a side view of the transition piece according to the innovation.

In Fig. 1, 1 denotes a central storage container which holds the grit to be distributed on a mobile device contains. In the lower end of the storage container 1 opens the Pressure line 2 of a pneumatic blower 3, with a distributor known at pich in the lower region of this reservoir or doser is arranged. The material fed into pressure line 2 by the feeder is raised by the delivery pressure

720398910.5.72 - 5 -

wear, runs through a line section designed as a corrugated pipe 4 and arrives at eir.em distributor 5, which distributes the material to be spread on the various to the individual outlet nozzles leading lines 6,7, 8 and S distributed.

The lines 5 to 9 can consist of plastic tubing and are attached to a corresponding support frame Io and lead to the actual impact nozzles 11, their Training emerges more clearly from Figures 2 and 3 and the actual subject of the present innovation are. The material arrives from the impact nozzles 11, as can be seen in FIG. 1 from the scattered cones 12 shown, onto the ground, with the individual scatter cones overlapping.

The actual impact nozzles consist of the actual outlet nozzle IU and one between the outlet nozzle 14 and the conveying line 7 arranged transition piece 15, which is essentially by two the circular pipe cross-section the conveying line 7 narrowing guide surfaces 16 and 17 and two the circular pipe cross-section of the conveying line 7 enlarging baffles 18 and 19 consists. Here, the guide surfaces are brought together so that the cross section of the Outlet nozzle is equal to the circular cross-section of the actual delivery line 7, so that the flow within the Fohre and the nozzle is not throttled.

Below the outlet nozzle 14 there is a baffle plate 2o which is arranged on a console 21 so that the actual Impact plate 2o, which serves as a wear part, is easily exchangeable. The console 21 is on the support device Io arranged on the machine -

The angle at which the baffle plate 2o relative to the Horizontal extends, for example, is 16 °, and it has been found that this slope is the best uniform Width distribution enables.

In addition, the baffle plate can be rotatably and adjustably arranged below the outlet nozzle.

The favorable mode of operation of the device according to the invention is most likely achieved in that the compact granulate stream fanned out in the wide transition piece and in the rectangular outlet nozzle and thus sprayed better can be.

Protection claims :

Claims (1)

Protection claims: 1.) Impact nozzle for pneumatically conveyed solids to be distributed, such as seed grain, fertilizer granules or fertilizer dust, with a nozzle arranged at the end of the conveying line and interacting with a baffle plate, characterized by a transition piece (15) between the circular conveying pipe (6, 7, 8, 9 ) and an outlet nozzle (14) having a rectangular cross section, which is formed by essentially two guide surfaces (IS), (17) which narrow the circular pipe cross section and two guide surfaces (18, 19) which enlarge the circular pipe cross section. 2.) Impact nozzle according to claim 1, characterized in that the cross-section enlarging guide surfaces (18, 19) are aligned parallel to the direction of travel. 3.) Device according to claim 1 and 2, characterized ekennzeichnet g, that the guide surfaces (16, 17; 18, 19 so together) and diverge in that the cross-section of the outlet nozzle is equal to the circular cross section of the conveying line (6, 7, 8, 9) is. Device according to Claims 1 to 3, characterized in that the impact plate (2o):
Is inclined to the horizontal. that the baffle plate (2o) at an angle of about 16 to 5.) Device according to one or more of the preceding claims, characterized in that the baffle plate (2o) is arranged rotatable and adjustable relative to the outlet nozzle (IH). 6.) Device RACH one or more of the preceding claims, characterized ichnet GEK ennze. That the baffle plate (20) can be exchanged as a wearing part on a console (21) is arranged.