SU1253473A1 - Arrangement for separating root vegetables from stones and clots of soil - Google Patents

Description

The invention relates to machines for agriculture, in particular to the means for the separation of a pile of root and tuber crops,

The purpose of the invention is to reduce the energy costs of the treatment process, increasing the separation capacity by increasing the speed of the air flow.

FIG. 1 shows a diagram of the proposed device, side view; in fig. 2 - the same, the area of the feed conveyor.

The device contains a feeding tranporter 1, consisting of a closed tape 2, an envelope leading and driven drums and made in the form of a flexible rectangular tube with a perforated working surface 3 and internal elastic overlaps 4. In the unloading section 5 of the conveyor 1 under the drum a pressure roller 6 is installed. Behind the unloading section 5 of the conveyor 1 there is a means for secondary separation, made in the form of an inclined slide 7 with a finger-like surface, over which middle part is installed active divider 8 thread. The device is equipped with the respective conveyors 9 and 10 to collect the root fruits and impurities.

The device works as follows.

The tubular mixture is conveyed by conveyor 1. When the drum goes around in the discharge section 5 with the help of the pressure roller 6, the tape 2 is compressed, an excessive pressure is created inside it and the air flowing out through the holes in the surface 3 creates an additional horizontal acceleration of the mixture discharged from the conveyor 1. Due to the difference in the densities of the roots, the stones and the soil lumps, they move along different trajectories. In this way, the initial separation of the mixture is ensured. The gable divider 8 forms two streams of components A and B, which are fed to the finger slide 7, where the final stage of separation of the components takes place on the basis of the differences in swing friction and sliding of the tubers and impurities, their shape and density. Stones and lumps are inserted into the elastic surface of the finger slide 7, move upwards and fall onto the conveyor 10. The root crops roll into the conveyor 9,

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Compiled by V.Furletov Editor S.Lisina Tehred M.Hodanich Proofreader S.Shekmar

Order 4648/2 Circulation 679 Subscription

VNIIPI USSR State Committee

for inventions and discoveries P3035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (3)

1. A device for separating root crops from stones and soil lumps, containing a feed conveyor formed by a closed tape enveloping the driving and driven drums, pneumatic means for primary separation and means for secondary separation, made in the form of an inclined slide with a finger surface, characterized in that that, in order to reduce energy costs during the wrapping process, the feed conveyor belt is made in the form of a flexible pipe of rectangular cross section with a perforated working surface, and under Rabanne in the unloading area of the feed conveyor is mounted a pressure roller. 2. The device according to π. 1, characterized in that, in order to increase the separating ability by increasing the speed of the air flow, the flexible pipe of the feed conveyor is made with internal elastic partitions. 3, The device according to paragraphs. 1 and 2, which is distinguished by the fact that a gable divider is installed above the middle part of the hill.