SU1273190A1 - Separator for granular materials - Google Patents

Abstract

The invention relates to a technique for separating grain materials according to aerodynamic properties and makes it possible to increase the separation efficiency by eliminating the mutual screening effect of the grains. For this, the gas distribution grid plates 5 of the separator are combined into blocks. The blocks are installed stepwise, along the depth of the pneumatic separating channel (k) 2. In each block, the plates are installed parallel to each other, and the blocks are at different angles to the longitudinal axis K 2. The mixture of grain and impurities from the feeder 1 of the separator enters K 2. Air pumped in K 2, passes through the grate 5. Air jets, now directed at different angles, penetrate the grain flow. At the same time, light impurities are isolated and precipitated in the collection of ready (L separator products 6. 1 Cp f-crystals, 5 d.

Description

The invention relates to the technique of separating grain materials by aerodynamic properties and is used for the purification of grain in agriculture and grain elevation,

The purpose of the invention is to increase the separation efficiency by eliminating the mutual screening effect of the grains of the material.

Fig, 1 shows a separator, a general view; in fig. 2 - plate installation diagram in the block; in fig. 3 block layout scheme; on the flow of air from the blocks; in fig. 5 is a diagram of eliminating the mutual shielding effect of the material grains.

The separator consists of a feeder 1, a pneumatic separator for the channel 2, formed by walls 3 and 4, a gas distribution grid 5 and a collection of 6 finished products. The gas distribution grid 5 is mounted on the wall 3 so that the grain can freely fly without touching the grid, and the dina, the grid is chosen such that the space between the wall 4 and the grid 5 is sufficient for free movement of the grain along the wall 4 beyond the channel.

The gas distribution grid consists of plates 7, which are combined into blocks with side walls: 8 and 9. At the same time, the plates in each block are installed parallel to one another, and the blocks are installed stepwise at different angles to the longitudinal axis of the pneumo-separating channel. So, for example, block I is set at an angle p p, and black II - at an angle of | 5 pTi, with the neighboring blocks having a different plate installation angle. The intersection angle of the jets of adjacent blocks.

The separator works as follows.

The mixture of grain and impurities from the feeder 1 (Fig. 1) enters the pneumo-separating channel 2, the air injected by the fan into the channel, the passage through the gas distribution grid 5 with jets directed at different angles penetrates the grain flow, thus separating the light prims, which are deposited in the collection of finished products.

The presence in the separator channel of blocks with different angles of installation of the guide plates makes it possible to isolate small particles of impurity that have fallen into the aerodynamic trail of large particles (aikkt shielding). FIG. 5 shows the process of separating the particle A, found 1 second in the aerodynamic wake from the particle B, Grain mixture, span over the block {Fig. C), first falls under the stream of air directed at an angle p (Fig, 5q) from the eshok and (Fig. 3), then enters the stream of air directed at an angle P (Fig. 58) from block III (Fig. 3) Part A (Fig. 5q) is not emitted under the action of a stream of air directed at an angle p, but in the stream of the next block, from which

air flows out at an angle. these particles are separated. Further, in a jet directed at an angle, (fng.5b), their further separation occurs, transportation, i.e. particle A

Moves: A-A-A, etc. The dimensions of the blocks, the angle of intersection of the jets are chosen on the basis of the aerodynamic characteristics of the materials being processed. Instead of flat :: blocks can

be installed blocks with a set of round square nozzles, etc., or surfaces with openings designed for these purposes.

Claims (1)

1. Separator of grain materials containing a pneumo-cellation channel with a feeder and a gas distribution grid from a plate set installed under the feeder, collections of finished products, characterized in that, with the separation circuit, by eliminating the mutual screening effect of the material grains, the gas distribution plate: in blocks. installed in steps along the depth of the pneumo-separating channel, In this case, the plates in each block are installed parallel to each other, and the blocks are oriented at different angles to the longitudinal axis of the pneumatic separating channel. 2, a separator according to claim 1, differing in that the plates of adjacent blocks are mutually inclined. FI.2 (rig. 3 /.l/x/ / l / /, / l / G A jv X iL. L..d..D. Ch5 u / N V / d d X Ll; X   X x.j . four Served mixture May-Day Shduha Prg. J