RU1780805C - Liquid purification filter - Google Patents

Abstract

SUMMARY OF THE INVENTION A filter element made in the form of a waterproof cylindrical shell, which is placed in the filter housing, is arranged in the form of a waterproof cylindrical shell, in which a package of sections of two inverse mesh cones is placed with a loading of different sizes placed between them, 1 silt.

Description

The invention relates to devices for purifying liquids and gases and can be used to clarify the wastewater of mills and other grain processing enterprises, as well as for cleaning polluted air flows.

A filter is known comprising a housing with a mesh shell located in it in the form of a cone with a base, the cone being filled with a granular filter load and rotatably mounted on the shaft with a catchment cone. The disadvantage of this filter is the location of the drainage cone in the water and under the filter loading cone, which makes it difficult to practice such a combination of both cones that would not allow water that has not passed through the filter load to enter the catchment cone, and at the same time would provide free rotation of the cone with filter loading around its axis. In addition, the above conditions are supplemented by the arrangement of these cones in an active medium such as water. Another disadvantage of this filter is that it only accommodates a uniform filter load, i.e. a charge designed to separate particles of about one specific size range.

The purpose of the invention is to improve cleaning efficiency and reliability.

This goal is achieved in that the filter element is made in the form of a waterproof cylindrical shell, in which a packet of filter sections is placed, each of which consists of two inverse mesh cones with a loading of different sizes placed between them, and these sections are installed coaxially and with a gap of one relative to each other, and the filtrate collector is placed above the upper cone. This design allows for more efficient separation of suspended particles, since particles of different particle sizes will be separated in different filter media, and the separate placement of these media will not allow them to move over time. The gaps between the inverse mesh cones with a grain filter load inside will allow the water to be purified to accumulate before entering each subsequent filter load, except for the lower one, and thus (L

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We can achieve a uniform flow of water into the granular charge.

Reducing the thickness of the layer of granular filter media, in comparison with the prototype, will increase the upper layer of the load, which is washed with a portion of the stream of cleaned liquid or air, which helps to increase the inter-regeneration period of the lower layer of the filter media having the largest particle size, which will improve the efficiency filter. In addition, the placement of a filtered water collector above the upper cone in the form of a recess in the upper pair of mesh cones allows avoiding practically difficult joints.

The drawing shows a filter, section.

The filter consists of a housing 1 with a lower pair of inverse mesh cones 2, between which there is a granular filter load with the largest interval of particle size of its constituent particles 3, with subsequent pairs of inverse mesh cones A, between which there are granular filter loads 5, shaft 6, sludge collector 7 , pipes for supplying the cleaned stream 8 with valves 9.10, pipes for removing the cleaned stream 11 with valves 12 and 13, a lock gate 14, a waterproof cylindrical shell 15, a pump 16.

The filter works as follows.

The liquid to be cleaned through the pipe 8 and the valve 9 enters the body 1, after which the liquid gradually rotates as a result of contact with the cones 2 with the load 3 rapidly rotating by means of the shaft 6. As a result of the centrifugal force, some of the impurities will fall on the inner walls of the body 1, from where it slides into the sludge collector 7. The liquid to be cleaned, passing through the cones 2 and the load 3, will accumulate in the gap between the pairs of cones 2 and 4, the shell 15 will block the passage of the uncleaned liquid into the same gap 15. Then the liquid to be cleaned st pass through the cones 4 and 5 load tending to fill the groove - a collection of purified water in the pipe is lowered

the discharge of purified water 11, since this collection is located below the water level in the housing 1. If necessary, there may be more cones like 2 and 4. Then

the purified liquid is removed through the valve 12 through the pipe 11 by the pump 16. Part of the clarified liquid flow as a result of the rotation of the cones 2 and the load 3 does not penetrate deep into the load 3, but returns inside

housing 1, washing out sediment suspended solids from load 3 and, thus, partially regenerating load 3. Final regeneration of the load 3 and recovery of load 5 occurs with closed valves 12 and 9 and open 13 and 10, Regenerated water passes through valve 13, pipe 11, cone 4 with loading 5, cone 2 with loading 3, body 1, pipe 8 and valve 10.

Due to the design of the filter element in the form of a waterproof cylindrical shell, inside which there is a packet of filter sections installed coaxially with a gap, each of which consists of two inverse mesh cones with a loading of different sizes placed between them, and the filtrate collector is placed above the upper cone, the cleaning efficiency is increased and filter reliability.

Claims (1)

SUMMARY OF THE INVENTION A filter for purifying a liquid, comprising a housing, a rotatable filter element in the form of a mesh cone with a granular charge, a filtrate collector, nozzles for supplying a cleaned liquid and discharging the filtrate and sludge, the fact that, in order to improve cleaning efficiency and reliability, the filter element is made in the form of a waterproof cylindrical shell, in which a package of filter sections installed coaxially with a gap is placed, each of which consists of two inverse mesh cones with a loading of different sizes placed between them, and the filtrate tank is placed above the top cone.