SU1526753A1 - Filter-thickener of continuous action - Google Patents

Abstract

This invention relates to liquid sheet filters and can be used to thicken juices and syrups in the sugar industry. The purpose of the invention is to improve the performance of the filter. The filter includes a housing, a cover, filtering elements made in the form of flat, vertically mounted sheets, a switchgear and nozzles. A distinctive feature of the filter is that it is equipped with partitions installed between the filter elements and dividing them into sections, and the distribution device is designed as a fixed distribution washer in contact with a rotating hollow shaft to drain the filtrate. 7 il.

Description

The invention relates to filtration, in particular to sheet liquid filters, and can be used to purify a liquid, mainly for thickening juices and syrups in the sugar industry.

The purpose of the invention is to increase the performance of the filter.

FIG. 1 shows a filter, a general view; in fig. 2 is the same side view with a partial cut; in fig. 3 - the same, top view with a partial cut; in fig. 4 - switchgear, general view; in fig. 5 - fixed washer; in fig. 6 - movable washer; in fig. 7 is a diagram of the connection of the filter with the distribution device.

The filter includes a housing 1 with a lid 2, a feed nozzle 3 and a nozzle 4 for removing the thickened suspension. Inside the case, filtering elements 5 are arranged with a gap to each other; they are made in the form of flat, vertically installed sheets, divided by partitions 6 into sections 7 and connected by means of tubes 8 for withdrawing the filter to a distributor 9. Supply pipe 3 is provided with distribution tubes 10, times. placed in each section 7. Distribution device 9 is made in the form of a fixed distribution jaw 11, to which are attached tubes 8 for filter drainage, and a hollow rotary shaft 12 with holes 13 to drain the filter. The shaft is mounted on slide bearings 14 and connected to the drive 15 via gears 16 and 17. A rigidly movable washer 18 is mounted on one end of the shaft, concentrating with a washer 11, and on the other end is 19, through which the tube 20 is rotatably passed through for flushing fluid on the filter elements. The tube 20 is rigidly connected to the faceplate 8, and in the lid 19 is fixed by means of a seal 21 (the seal is displaced to the right along the tube). The holes 13 communicate with the filtrate outlet nozzle 22, which is sealed by the gland assembly 23. The stationary washer 11 is mounted in the form of a disk (Fig. 5) with openings 24 for passing the filtrate, and the movable washer 18 (Fig. 6) is in disk with opening (L

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25 for a filtrate and a port 26 in communication with the wash liquid supply tube 20. Switchgear is installed on supports 27.

The filter works as follows.

The feed slurry through port 3 and distribution tubes 10 is fed into housing 1, where the liquid phase passes, being cleaned through filtering elements 5, and through tubes 8 is withdrawn to distribution unit 9, where it passes through openings 24 and 25 of shields 11 and 18 and enters the cavity of the shaft 12, from where through the holes 13 and the nozzle 22 is removed from the filter. The solid phase is deposited on the surface of the filter elements 5. To clean the filter elements from sediment, a filtrate is fed into the tube 20 under pressure, which through the hole 13 and the hole 24 of the fixed washer 11 is alternately fed into the internal cavity of the filter elements 5 and, in reverse flow through the filter the surface washes away the sediment, which is deposited in the conical part of the filter and is discharged from it through the pipe 4. The partitions 6 separate the regenerated filter elements from the rest, which are in the filtration stage, therefore the regeneration process does not disrupt the operation of the filter, which makes it possible to increase its performance.

Claims (1)

Invention Formula o A continuous filter thickener comprising a body, a lid, filter elements made in the form of flat, vertically mounted sheets, a switchgear and nozzles, characterized in that, in order to increase productivity, the filter is equipped with partitions installed between the filter elements and separating them the section, and the distribution device is designed as a fixed distributor plate in contact with a rotating hollow shaft to drain the filtrate. five ag one Fig. 2 .3 7 V f7 //// 7 // L /// 2 L 7 Fy U //// U / L FI.5 25 l xVyyyyy l K UUUULUL1 Fiz.6 18