SU700168A1 - Slotted filter - Google Patents

Description

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The invention relates to the field of filtering, and all to the filter

for cleaning liquids, and can be used in various industries.

A device for cleaning liquids is known, which contains filter plates with holes, made in the form of two comb sections entering one another, one of which is movable and connected to a reciprocating drive.

The disadvantage of the device is a small dehumidification capacity, which leads to a rapid clogging of the filtering surface and frequent washing of the filter, which requires a considerable consumption of water to flush it. In addition, this device has a small effective filtering surface.

A filter for cleaning fluid is known, comprising a housing with inlet and outlet pipes and a filter element assembled from impermeable plates movably mounted on a frame connected to the drive, reciprocating movement 2,

The disadvantage of the filter is a small drip.

The purpose of the invention is to increase the filter capacity

This goal is achieved by the fact that the filter is provided with springs connecting the plates in pairs and spacer wedges placed between the pairs of plates connected in pairs.

FIG. 1 shows the filter with the position of the plates in the regeneration mode, a general view; in fig. 2 - filter element in filtering mode.

The filter consists of a housing 1 in which a package of 2 filter plates is placed. The plates of the spring package5 by us 3 are fastened together in pairs by means of hinges 4 mounted on frame 5 with gaps between the pairs of plates.

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The frame 5 is connected to the drive of the reciprocating sweep, including a screw 6, which by means of a V-belt transmission 7 is connected to the electric drive 8. On the housing 1

5, a supply pipe 9, a discharge pipe 10, a drain pipe 11 are placed. A wedge 12 and a guide 13 are installed between the bonded plates.

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The filter works as follows.

The initial fluid through the feed pipe 9 enters the filter bag 2, which is set by means of screw 6, transmission 7, electric drive 8 and spacer wedges 12, in which the gaps between adjacent pairs of plates vary in height of the filter bag from {maximum inlet value to the desired value at the outlet of the filter package,.

The passage of the filter bag, solid inclusions present in the source liquid, are retained in the gaps between the plates. Moreover, the particle size of solid inclusions retained in the filter package decreases along the height of the filter package in accordance with the change in the size of the gap between the plates I 1i, the largest

inclusions are delayed at the entrance to

filter package. The filtered liquid is discharged through the pipe 10. After filling the gaps between the plates with solid inclusions, the filter is regenerated.

To regenerate the filter bag 2 by means of the screw b, the V-belt transmission, 7, the electric drive 8 moves to a position where the gaps between the plates of adjacent pairs over the entire height of the plates reach a maximum value. At the same time, the free ends of the filter plates are placed above the spacer wedges and, by means of tightening springs 3, the filter plates are pressed against the guides 13,

Regeneration of the P1 filter is driven by a reverse current filter.

The filtrate through the pipe 10 is fed into the filter housing, passes through the increased gaps and through the pipe

9 takes out the delayed arsenic filter.

The npoMiifflKH time depends on the characteristics of the contaminants, the size of the initial gaps and the intensity of the wash.

Switching pipelines when switching the filter from filtering mode to regeneration mode is carried out in the known way.

The implementation of the filter bag in the form of plates fastened in pairs with springs and the installation of spacer wedges between the fastened plates increases its capacity and effective filtering surface.

In addition, the regeneration conditions of the filter bag are improved, and the filtrate consumption for washing is reduced.

Claims (1)

1. USSR author's certificate, No. 339299, cl. B 01 b 25/12, 1971. - 2, USSR Author's Certificate No. 31359, class, B Ol: 0 25/26, 1970.