SU1699522A1 - Liquid cleaning filter - Google Patents

Abstract

The invention relates to filters for the purification of liquids, mainly flowing through a pipeline, and makes it possible to increase the reliability of the filter in operation. The filter consists of a housing 1, which may be a section of the pipeline, perforated partitions 7, between which a granular filtering load 2 is located, partitions 6 with openings 8 and valves 9. One of the partitions 6 is fixed, and the other and partitions 1 are returnable -accessible movement, which allows compressing the load upon filtering and expanding during regeneration. 1 hp 6-ly, 2 ill. I

Description

The invention relates to equipment for cleaning emulsions, suspensions, and is intended primarily for the treatment of industrial wastewater J and domestic water flowing through a pipeline.

The purpose of the invention is improving the reliability ..

In FIG. 1 shows a diagram of a filter, the position of the partitions during filtration, general view; in FIG. 2 - the same position of the partitions during backwashing.

The filter comprises a housing 6 with a filtering granular load 2 (FIGS. 1 and 2), nozzles 3 and 4 attached to it diagonally opposite to supply and discharge washing liquid and means 5 for compressing the load. The filter load is limited to two pairs of partitions 6 and 7. The inner partitions 7 are perforated. The external partitions 6 are provided with access windows - 25 mi 8 with spring-loaded rotary valves 9. The external partition 6 on the back of the device is rigidly attached to the wall of the housing 1, and the remaining partitions 6 and 7 are installed with the possibility of movement along the longitudinal axis of the housing and spring-loaded between itself with the help of springs 10 12. The inner partitions 7 are equipped with pushers 13 in contact with the valves 9. The means 5 for compressing 35 of the load is made in the form of a cam 14 mounted at the axis of the housing 1 and in contact with the movable by a partition 6. The shaft 15 is driven <4 G 40 and the cam 14 is enclosed in a cylindrical casing 16, brought to the outside of the housing 1 and equipped with a handle 17, the device is mounted in the gap of the pipe 18.

¹ 45

The filter works as follows.

Before filtering, load 2 is compressed in the axial direction. To do this, by turning the handle 17, the cam 14 is rotated, which biases the baffle 6 towards the loading side, then, pressing through the spring 10, presses on the baffle 6, and the baffle 7 compresses the filter load with the spring 11 and partially displaces another (opposite) inner baffle, which By compressing the spring 12, the pushers 13 open the valves 9. At the same time, the valves on the movable outer partition 6 also open on the cam 14 side. After that, liquid is supplied through the pipe 18 to the filtration.

After filling the filter load 2 with sediment, it is regenerated by backwashing. To do this, the cam 14 is removed from the stop with a movable partition 6. The springs 10-12 are straightened and partitions are moved apart relative to each other, releasing the filter load 2 from the load. The pushers 13 are out of contact with the valves 9, which close the openings 8 and seal the housing 1 from the pipeline 18. A flushing liquid is supplied through the pipe 3, which passes through the filter loading layer 2 and, together with the leaching dirt, leaves the housing 1 through the pipe 4. After washing, the device is again switched to the filtration mode.

Claims (2)

Claim 1. A filter for cleaning liquids, mainly flowing through a pipeline, comprising a housing, internal perforated partitions arranged in it sequentially along the liquid being cleaned, a granular filter load placed between them, installed before and after internal external partitions with openings and connected to the body diagonally opposite nozzles respectively, for supplying and discharging · washing liquid, characterized in that, in order to increase reliability in operation, one external partition is fixed Lena in the housing is stationary, while others are equipped with a mechanism for axial reciprocating movement, while spring-loaded rotary valves are located above the openings of the external partitions and pushers are installed on the surfaces of the internal partitions facing them to contact the valves. 2. The filter according to claim 1, characterized in that the movable partitions are connected to each other by springs and the mechanism for moving them is made in the form of a cam installed in the housing at the level of its axis, and a part of the cam drive shaft is located on the outer part of the housing.