SU1728103A1 - Device for separation of multicomponent mixture - Google Patents

Abstract

The invention relates to devices for the pneumatic transport of bulk materials, in particular to devices for the separation of a multicomponent mixture, and can be used in the forest, woodworking, pulp and paper, construction and mining industries. The aim of the invention is to increase the safety of the material to be separated. For this, the housing, in cross sections perpendicular to the longitudinal axis of the device, is a polygon with inner corners greater than 90 ° but less than 180 °, each subsequent angle being smaller than the previous one, and a larger internal angle greater than or equal to 150 &;deg; and less than 180 °. 4 il.

Description

The invention relates to the pneumatic conveying of bulk materials, namely, devices for separating a bulk material mixture from the air conveyed by a multicomponent.

The purpose of the invention is to increase the safety of the material being separated.

Figure 1 shows the proposed device, a General view; figure 2 is a view of A along the arrow in figure 1; on fig.Z - device, top view; figure 4 - section bb in figure 1.

The device comprises a housing 1 and an inlet nozzle 2 adjoining it, having a partition 3 at the inlet of the housing. In the housing 1 there is a connection 4 coaxially with it passing through the cover 5 of housing 1. The housing 1 in cross section is a polygon with sides 6 The inner corners of this polygon have a value that decreases in the direction of movement in the body of the mixture flow.

In this case, the larger internal angle of the polygon is made with a value of 150 °.

The cavity of the inlet pipe 2 communicates with the cavity of the housing 1 by an air duct 7 having an inlet opening 8 and an outlet opening 9, which is located on the side of the partition 3 facing the opposite direction of the mixture. In the lower part of the housing 1 is a screw unloader. ten.

The device works as follows.

The flow of the air mixture, in particular the mixture of wood chips with air, enters the nozzle 2. After the chips hit the partition 3, the chips move to the edge of the housing 1. A part of the kinematic energy is lost from the impact and friction of the chips, and therefore its speed decreases. As a result of oblique impacts on the subsequent edges of the body, located below the angle decreasing in the direction of its movement in the body (L

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We are one to another, chips under the influence of the force of gravity settles.

Simultaneously with the braking of chips from impact and friction on the face of the housing 1, it is braked by an oppositely directed air flow, which flows from the pipe 2 into the inlet 8 of the duct 7 and leaves the hole 9 located on the side of the partition 3, which is opposite to the movement mixes. The kinetic energy is thus lost, the chips are deposited in the lower part of the body 1 and through the screw unloader 10 are removed from the body 1 to the destination.

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Claims (2)

1. A device for separating a multicomponent mixture, preferably a mixture of air with wood chips, comprising a housing, the cross section of which is in the shape of a polygon, the inside corners of which are greater than 90 ° and less than 180 °, characterized in that The polygon of the body is made with the value of the internal angle decreasing in the direction of movement of the mixture flow. 2. The device according to claim 1, characterized in that the larger internal angle is made with a value of 150 °. ten T 1 FIG. 3 Fy