SU1407588A1 - Pneumatic separator having aerospouting layer - Google Patents

Abstract

This invention relates to the separation of bulk materials into fractions, and b. used in industrial materials, chemical, metallurgical and other industries. The purpose of the invention is to improve the quality of the products obtained due to the even distribution of the material to be divided into channels (K). In the upper part of the housing 1, vertical plates 5 are installed with transferring elements 7, separating the pneumatic separator on K 6. The inclined distribution grid (P) 8 is installed in the housing 1 with an increasing living section. The length of the elements 7 in K 6 decreases in the direction of movement of the material by P 8. The pneumatic separator has a nozzle (P) 4 for removing air with a small product, loading P 2 and unloading P 3. The material passes through P 2 to P 8, through which a layer of material is supplied with air. Small particles are picked up by the air flow, move upwards along K 6, where they are scrubbed on elements 7, and are discharged through P 4. The coarse material along P 8 enters P 3, 2 Il. S (L with

Description

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The invention relates to the separation of bulk materials into fractions and can be used in the building materials industry, chemical, metallurgical and other industries.

The purpose of the invention is to improve the quality of the products obtained by uniformly distributing the material to be divided | into the channels.

FIG. 1 shows a pneumatic separator, a general view; in fig. 2 - distribution grid.

The pneumatic separator consists of body 1, loading 2 and unloading 3 nozzles. Together with the fine product, the air is removed from the apparatus through pipe 4. Inside the case there are vertical plates 5 separating the pneumatic separator into channels 6 and pouring elements 7. In the first section they overlap approximately (1.5 channel widths, in the latter 0.2 the width of the channel, the inclined distribution grid .8 with a variable living section, below the first channel, the living section is 25%, and in the last 40%.

i The pneumatic separator operates as follows.

I The material to be separated will pass through the loading nozzle 2 onto an inclined distribution grid 8 through which air is introduced into the material layer. As a result, the air blown material comes to a "boiling point". Small particles are picked up in the outgoing air flow and move upward along the channels 6 of the separator. Part krup0000 oooooooooooO

Particles falling into the airflow core, where the speed is higher than the average, corresponding to the boundary grain, is carried away into the separator channels 6, where material is cleaned up due to the fact that a turbulent flow is created due to the presence of pouring elements 7 particles and large particles are knocked out of the airflow core.

In addition, as a result of the collision with the pouring elements 7, particles are removed from the walls of the channel b, near which the flow velocity is practically zero. The fine material through pipe 4 is carried to a cyclone and a filter (not shown). Large material distribution grid 8 flows through the discharge pipe 3 into the hopper of a large product.

Claims (1)

Invention Formula A pneumatic separator with an aerofunctional layer comprising a body divided in the upper part by vertically mounted plates with pouring elements onto channels, an inclined distribution grid, loading and unloading nozzles, characterized in that, in order to improve the quality of separation due to uniform distribution of the separated material through the channels, the cross section of the inclined distribution grid is increased, and the length of the pouring elements in the channels decreases in the direction of movement of the material la on the distribution grid.