SU1565393A1 - Device for removing foreign impurities - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular, machines for separating foreign matter from forage. The purpose of the invention is to increase the efficiency of separation of foreign inclusions. The device comprises a chamber 1 with an inlet 2 and an outlet 3 with nozzles, the latter being connected to a vacuum source. In the lower part of the chamber 1, holes 4 are made and a cover 5 is mounted, mounted on the hinge 6. Chamber 1 is made in a longitudinal section in the form of a spiral and provided with a plate 7 attached inside the side wall of the camera 1 in a cantilever and made in cross section in the form of a spiral, having in the expansion zone the wedge-shaped part. The inlet 2 is installed tangentially to the chamber 1 and provided with a partition 10 in the lower part. Each hole 4 is provided with a louver plate 11 mounted on its rear edge, in the direction of material movement, at an acute angle to the outer surface of the chamber 1 with adjustable position. The plate 7 is located no higher than the level of the partition 10 and has a width of 0.6 to 0.7 width of chamber 1. The material through the inlet 2, enters the chamber 1, moves along it in the form of a downward flow, from which centrifugal force is separated foreign inclusions. In the lower part of the chamber, the feed is picked up by air entering through the openings 4, and in the form of an upward flow enters the upper part of chamber 1, where it moves along the wedge-shaped part of plate 7, is pressed to the side of the outlet nozzle 3 and removed from chamber 1, accumulated on the bottom are removed when you open the cover 5. 1 Cp f-ly, 3 ill.

Description

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a cover 5 is mounted, fixed to the hinge 6. The camera 1 is made in a longitudinal section in the form of a spiral and is provided with a plate / attached inside to the side wall of the camera 1 cantilever and made in cross section in the form of a spiral having a wedge-shaped part in the expansion zone. The inlet 2 is installed tangentially to the chamber 1 and provided with a partition 10 in the lower part. Each hole 4 is provided with a louver plate 11 mounted on its rear edge, in the direction of material movement, at an acute angle to the outer surface of the chamber 1 with adjustable position. Plate 7 is located no higher

the level of the partition 10 and has a width of 0.6-0.7 width of the chamber 1. The material through the inlet 2, into the chamber 1, moves along it in the form of a downward

flow, from which foreign substances are separated due to centrifugal force. In the lower part of the chamber, the feed is picked up by air entering through the openings 4, and in the form of an upward flow enters the upper part of chamber 1, where it moves along the wedge-shaped part of plate 7, is pressed to the side of the outlet nozzle 3 and removed from chamber 1, accumulated on the bottom are removed when you open the cover 5. 1 Cp f-ly, 3 ill.

The invention relates to the field of agricultural engineering, in particular to machines for separating foreign matter from forage.

The purpose of the invention is to increase the efficiency of separation of foreign inclusions.

FIG. 1 shows a device for separating foreign inclusions, a general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. 2

The device comprises a chamber 1 with an inlet 2 and an outlet 3 with nozzles, the latter being connected to a source of discharge (not shown). In the lower part of the chamber 1, holes 4 are made and a valve 5 is installed, fixed by means of the hinge 6. Chamber 1 is made in a longitudinal section in the form of a spiral and provided with a plate 7 attached inside to the side wall 8 of the camera 1 in a cantilever and made in cross section in the form of a spiral, having a wedge-shaped part 9 in the expansion zone. The inlet 2 is tangential to the chamber 1 and provided with a partition 10 in the lower part. Each hole 4 is provided with a louvered plate 11 mounted on its rear edge 12 in the direction of Moving the material at an acute angle to the outer surface of the chamber 1 with the possibility of adjusting the position. Plate 7 is located no higher than the level of the partition 10 and has a width of 0.6-0.7 width of chamber 1.

Installation for separating foreign inclusions works as follows.

The flow of pneumatically transportable pre-crushed long-fiber or bulk material through the inlet 2 enters the chamber 1, through which it begins to move in the form of a downward flow through the narrowing channel formed by the inner surface

chamber 1 and the outer surface of the spiral plate 7, in which, due to centrifugal force, the material is pressed against the surface of chamber 1 and separated from the air. In the lower part of the chamber 1, foreign inclusions are separated from the material and the purified material in the form of an upwardly narrowed flow enters the upper part of the chamber, where it moves along the surface of the wedge-shaped part 9 of the plate 7 and,

0 pressed in the direction of the outlet 3, is removed from the chamber.

With the passage of the lower part of the chamber 1, the material is picked up by the incoming air coming through the holes 4, provided with a louver plate 11 along the

5 trailing edge in the direction of movement of the material, set at an acute angle to the outer surface of chamber 1. The angle or slot width may vary depending on the plant capacity, which contributes to a better movement of material around the chamber and reduces feed loss with foreign inclusions. . The cleaned feed is discharged through the outlet 3, and foreign inclusions are collected on the bottom of chamber 1 and removed when the shutter 5 is opened.

The location of the spiral plate 7 in chamber 1 and its dimensions within 0.6-0.7 width of chamber 1 are due to the optimization of the technological process of separation of foreign inclusions, since exceeding the size causes clogging of chamber 1 with material, and a decrease results in ingress of foreign inclusions in the unloading pipe 3 vmste with the purified material.

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Claims (2)

1. A device for separating foreign inclusions, comprising a chamber with inlet and outlet nozzles, the latter being connected to a source of discharge, and holes are made in the lower part of the chamber and a hinged damper is installed, in order to increase the efficiency of separating foreign inclusions The chamber is made in a longitudinal section in the form of a spiral, is provided with a plate attached inside to its side wall console and made in the cross section in the form of a spiral, having a wedge in the expansion zone The inlet part is installed tangentially to the chamber and provided with a partition in the lower part. Each hole is equipped with a louvered plate mounted on its rear edge in the direction of material movement at an angle to the outer surface of the chamber with adjustable position. 2. A device according to claim 1, characterized in that the plate is located no higher than the level of the partition and has a width of 0.6-0.7 of the width of the chamber.