RU17684U1 - PNEUMOSEPARATOR - Google Patents

Abstract

A pneumatic separator, including a pneumatic separating channel with a transverse window for introducing separated material, in which a feeder is mounted on the shaft, characterized in that the surface of the feeder is made in the form of a grill and the central part of the feeder is hollow.

Description

PNEELOSHARATOR

The utility model relates to the technique of separation of grain materials by air flow and can be used for cleaning bulk materials, mainly grain and granular materials from light impurities, in agricultural machinery, as well as in the milling and elevator and animal feed industry.

Known pneumatic separator containing pneumatic separating chamber and pitched trays with receiving descent edges, located one above the other, and the receiving edges of the trays adjoin one another, and in the trays there are slots directed along the movement of the material. The trays are made curved with a decrease in curvature in the direction of movement of the material, while the outflow edge is horizontally l.

The disadvantage of this device is that the grain stream, consisting of individual jets located in cross section in a checkerboard pattern at different heights, is distributed unevenly along the depth of the air separation chamber. In this case, the concentration of grain material is more significant at the wall of the air separation chamber located opposite the outflow edges of the ramp trays. In addition, with an increase in the specific supply of material, it is unloaded at a given wall. This is justified by the fact that the initial grain material entering the pitched trays and moving along their surface under the action of gravity moves from the outflow edges of the trays in the air separation chamber along parabolic trajectories close to the chamber wall opposite the trays. Along with the noted, in the presence of an uneven grain level above the pitched trays along the width of the device, an uneven flow through the pitched trays along the width of the air separation chamber is observed. Disadvantage

MKI 7 V07V 4/00,

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gooo1. there is also an uneven supply of grain material over time due to fluctuations in the grain level above the pitched trays. As a result, the condition of processing the grain material in the pneumatic separating chamber of this device is deteriorating. During operation, the main part of the air in the pneumatic separating chamber passes through the more loosened part of the grain flow due to the fact that it has less resistance to air movement. Therefore, the air flow rates in the pneumatic separation chamber are unevenly distributed, which leads to a deterioration in the quality of cleaning the grain mixture and the removal of full grain grain in waste. By the most technical solution and the achieved result, the proposed utility model includes a pneumatic separator, including a pneumatic separating channel with a transverse window for introducing the material to be separated, in which the feeder is mounted on the shaft. The feeder is made in the form of a corrugated roller with cells on the outer side 2 - prototype. This device reduces the unevenness of the supply of grain material into the pneumatic separation channel in time caused by fluctuations in the grain level above the roller, and also reduces its uneven distribution over the width of the channel. However, during the operation of this device, the grain material, falling at different points on the surface of the cell, and pushing off from them, moves along different paths, forming a stream. When the main part of the grain material comes off the surface of the cell, the important part is at the very beginning of the turn, and therefore it is concentrated at the beginning of the depth of the stream. This leads to an uneven distribution of the grain material along the depth of the jet, and, therefore, along the depth of the pneumatic separating channel. In addition, this device does not provide when entering into the channel of grain material

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allocation of sologous impurities from it. Along with the grain mixture having high humidity noted during separation with increased specific feed, because of the high density, it is difficult to isolate straw impurities from the lower and middle layers of the grain flow, as a result of which these impurities are removed with the main product. All this leads to a decrease in the quality of separation of grain material.

The essence of the proposed utility model is that for a known pneumatic separator, the surface of the feeder is made in the form of a sieve, and the central part of the feeder is hollow.

As a result of the analysis of literary sources, no identical execution of the proposed device was found. Moreover, distinctive features from the prototype signs give the claimed combination of new properties, manifested in a positive effect.

The execution of the feeder in the form of a lattice, and the central part of the feeder as a hollow facilitates the passage of grain material through it into the air separation channel and the release of straw impurities on this surface from grain and small impurities. At the same time, grain and small impurities are uniformly introduced by the feeder uniformly distributed into the pneumatic separating channel, and straw impurities are introduced into the channel above the input of the grain flow. Grain material passing through the hollow central part of the feeder is subjected to rotational-boiling action. This contributes to a more uniform distribution of the grain material in the air separation channel, which, in turn, contributes to a higher cleaning effect of the grain material.

As a result, during the operation of the proposed device, a positive effect is achieved that significantly exceeds the effect of the prototype, and the new combination of features of the claimed device has significant differences.

On physics, a pneumatic separator diagram is shown, where the arrows indicate the movement of a grain pile, straw impurities and air flow.

The pneumatic separator consists of a pneumatic separating channel I with a transverse window 2 for introducing the material to be separated, in which a feeder 4 is mounted on the shaft 3, the surface of which is made in the form of a grid, and the central part 5 of the feeder is hollow.

Pneumoseparator works as follows.

The cleaned grain heap enters the feeder 4. Grain and small impurities pass through the lattice surface of the feeder into its hollow part 5, where it is subjected to rotational-boiling action under the action of rotational motion, as a result of which the grain material passes through the lattice surface and is evenly distributed in the air separation channel I. At the same time, straw impurities, prior to entering the grain heap into the channel, are separated by the lattice surface of the feeder 4 and injected into the pneumatically separating channel I above the zone evenly melting grain and fine impurities.

The advantage of this utility model in comparison with the prototype is to improve the quality of separation of the grain heap, which is achieved by the preliminary selection of straw impurities from the grain material when it is introduced into the air separation channel and the grain grain is uniformly distributed in the latter.

I. A.S. And II65496 USSR, MKI 4 V07V4 / 00 Pneumoseparator / A.M. Korn, A.S. Matveev, A.N. Zyuzhn and others-No. 3616436/294) 3; Claimed 06/30/83 / Discoveries. Inventions.-1985.-No. 25.-S.53.

Literature 2. Separation processes at grain processing enterprises / V. V. Gortinsky, A. B. Demsky, S. A. Boriskin. 2 nd ed.; reslave. and ext. 4.: Kolos, 1980.-S.268-270.

Applicant:

Vyatka sovereign is another agricultural academy Rector Y Sh, S D. Zhdanov (

Claims (1)

A pneumatic separator, including a pneumatic separating channel with a transverse window for introducing separated material, in which a feeder is mounted on the shaft, characterized in that the surface of the feeder is made in the form of a grill and the central part of the feeder is hollow.