SU915887A1 - Filter for cleaning liquids - Google Patents

Description

The invention relates to devices for cleaning liquids from mechanical impurities and can be used for cleaning liquids in water supply systems, cooling industrial facilities.

A filter for cleaning liquids is known, comprising a housing with movable and fixed partitions placed at it at a height, to which ends are attached to the ends of the fibers forming the filtering layer (1].

However, in such a filter, during operation and regeneration, the fibers are not in an ordered state and, after several filter cycles, are tangled and torn.

The purpose of the invention is to improve the operation of the filter and uniform distribution of the flow height of the filter.

To achieve this goal in the filter for cleaning liquids, comprising a housing and a filter element formed by threads fixed

ten

2

between the end plates, one of which is rigidly fastened to the housing, and the other is adopted on the shaft, the plate is mounted on the shaft end of a non-circular cross section with the possibility of its moving ⁵ in the axial direction.

In addition, the shaft is hollow and perforated.

FIG. 1 shows a filter, a longitudinal section through filtering; in fig. 2 - the same in the state of regeneration (washing).

The filter includes a housing T with a nozzle 2, a cover 3 with a seal 4, a perforated hollow shaft-collector 5 with a profiled shank 6 and a filtering layer of fibers or filaments 7 mounted on the upper fixed plate 8 and the lower movable plate 9 "driven by the rotation shaft - the collector 5 using the flywheel 10.

The filter works as follows.

one

3 91

Before filtering the fluid entering the filter through the nozzle 2, the flywheel TO rotates the shaft 5 "which by the shank 6 rotates the plate 9, which twists the threads 7" which are compacted and draws up the plate 9, sliding axially along the shaft 6. The filtering liquid is filtered through the sealed ! thread in the radial direction, from the periphery to the center, and out of the filter through the shaft-collector 5, having a radial and axial holes.

During regeneration (washing) of the filter *, shaft-collector 5 is rotated in the direction and by the angle, providing the maximum increase, the gap between the filaments 7. At the same time, the plate 9 is lowered, providing with its own weight some tension of the filaments, preventing them from tangling. The flushing fluid enters the filter through the shaft-collector 5> passes the filter layer, cleansing it, and exits through the nozzle 2.

Thus, due to the presence of a movable in the axial direction of the lower plate, an effective control of the threads in the working position is achieved.

7 4

filter and effective cleaning of the filter layer during its regeneration without the danger of tangling and thread breakage

Claims (1)

Claim 1. A filter for cleaning liquids, comprising a housing and a filtering element formed by threads fixed between end plates, one of which is rigidly fastened to the housing, and the other is mounted on the shaft, which differs , 5 by the fact that, in order to improve operation, the plate is mounted on the shank of a shaft of non-circular cross section with the possibility of its movement in the axial direction. 20 2. Filter pop. 1, which differs from I in that, in order to evenly distribute the flow along the height of the filter, the shaft is hollow and perforated. 25