SU1423164A2 - Centrifuge - Google Patents

Abstract

The invention relates to equipment for separating suspensions in a centro11 / 02 field, the development of centrifugal forces. The aim of the invention is to improve the reliability of the centrifuge. The centrifuge contains a casing 1, a conical perforated rotor 2, a feed pipe 3. Inside the rotor there are continuous spring-loaded disks 7 with a diameter d, behind which continuous removable drain thresholds 9 are installed along the movement of the suspension. The internal diameter of the thresholds exceeds the diameter of the disks. The presence of thresholds facilitates the passage of particles of large gaps between the rotor and the disk, which increases the reliability of the centrifuge. 2 Il.

Description

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The invention relates to equipment for the separation of suspensions into solid and liquid phases in a field of centrifugal forces.

According to the main author. St. No. 952344, a known centrifuge, comprising a housing, a conical perforated rotor, a centrally located pipe for feeding the suspension, and solid spring-loaded discs fixed thereto.

The disadvantage of this centrifuge is the jamming of sediment particles of relatively large size due to the insufficient size of the gap between the rotor and the discs, since it depends on the size of the main particles of the sediment and compared with it.

The purpose of the invention is to increase the reliability of the centrifuge.

FIG. 1 schematically shows the proposed centrifuge, longitudinal section; in fig. 2 — node I in FIG. one.

The centrifuge contains a casing 1 for collecting and separate sludge removal and a filter, a conical perforated rotor 2 and a flow tube 3. The rotor is mounted on shaft 4 in bearings 5, on which pulley 6 is fixed to drive the rotor in rotation. Inside the rotor, there are solid disks 7 with a diameter d, spring-loaded springs 8. Behind the disks 7 at a distance / there are continuous removable drain thresholds 9 with an internal diameter D greater than the diameter of the disk.

The centrifuge works as follows.

Through the pulley 6, the rotor 2 of the centrifuge is driven into rotation. The feed pipe 3 enters the rotor 2 suspension, which accumulates before the first of the disks 7. When the sediment reaches a certain thickness in front of the disk, it presses the disk by S, determined by the size of the main particles of the sediment, passes through the gap to threshold 9 and dumps through it to the next disk. Before passing the threshold 9, the sediment is placed on it at an angle of dynamic slope p, as a result of which the gap between the disk 7 and the rotor 2 is blocked by the sediment and its passage through the gap is suspended. As a result, there is a further growth of the layer before the disk and its additional squeezing by 5 |. The main part of the sediment passes through an additionally formed gap. At the same time, the sediment layer lying below the level of the angle of dynamic slope is not static; in it, the product is gradually updated, due to which large-sized particles pass inside this layer through the gap between the rotor and the disk. Thresholds can be of any shape, but the condition must be met.

20

D-d g

 {/-five).,

where D is the internal diameter of the drain threshold;

d is the outer diameter of the disk; f is the distance between the disk and the 5th threshold;

5 is the magnitude of the displacement of the disk under the action of sediment;

P - the angle of the dynamic slope of the sediment material.

The design of the centrifuge allows Q to increase the reliability of its operation.

Claims (1)

Invention Formula Centrifuge by auth. St. No. 952344, characterized in that, in order to increase the reliability of operation, for each disk, as the suspension moves on the inner surface of the rotor around its circumference, a solid removable drain threshold is strengthened, the internal diameter of which exceeds the diameter of the disk. (rig 2