Self-cleaning sewage filtering device

Abstract

The invention discloses a self-cleaning sewage filtering device, and belongs to the field of sewage treatment equipment. The device comprises a shell A, a shell B, a rotating motor and hole covers; and the shell A and the shell B are on the same bottom surface, the rotating motor is connected with the bottom surface, a gap is formed between the side wall of the shell A and the side wall of the shell B, filtering holes are formed in the side wall of the shell A and the side wall of the shell B, the hole covers are arranged on the side wall of the shell A, each hole cover comprises a pyramid anda trapezoid-like body which are connected, the top of the pyramid is sealed, the bottom of the pyramid is hollowed out, the trapezoid-like body is located in the bottom of the pyramid, the top face of the trapezoid-like body is an installation hole used for installing a cross-shaped silica gel valve, the bottom corner of the pyramid is connected with the shell A, the adjacent bottom corners of the adjacent hole covers are connected, and a sewage pump is arranged in the shell A. When the rotating motor rotates forwards, the hole covers play a role in filtering, and when the rotating motor rotates reversely, filter residues can be discharged, so that a self-cleaning effect is achieved.

Description

technical field [0001] The invention relates to the field of sewage treatment equipment, in particular to a self-cleaning sewage filtering device. Background technique [0002] The filter is an indispensable device on the conveying medium pipeline. It is usually installed at the inlet of other equipment such as pressure reducing valves, pressure relief valves, fixed water level valves, square filters, etc. Generally, the sewage filtration of sewage plants has filter residue layer filtration, There are three methods of depth filtration and sieve filtration. When the filter is working, the water to be filtered enters through the water inlet, flows through the filter screen, and enters the pipeline required by the user through the outlet for process circulation. The particles and impurities in the water are trapped in the filter screen. . [0003] However, with such a continuous cycle, more and more particles are trapped, and the filtration speed is getting slower and slower, ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing sewage filter needs to frequently replace and clean the filter screen, the present invention provides a self-cleaning sewage filter device

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