Filtering device for sewage treatment equipment

Abstract

The invention discloses a filtering device for sewage treatment equipment. The filtering device includes a filter cartridge; a first filter screen plate and a second filter screen plate are fixedly connected to the inner wall of the filter cartridge in sequence in the vertical direction; the bottom end of the filter cartridge is slidably connected with a connecting block; two symmetrically distributed first sliding blocks are fixedly connected to the outer wall of the filter cartridge; a first groove is formed in the upper surface of the connecting block; a first chute matched with the first sliding block is formed in the groove wall of the first groove; two circular through holes are formed in the lower surface of the connecting block; filter pipes are fixedly connected to the bottom endsof the circular through holes; a group of symmetrically distributed through holes are formed in the inner walls of the two filter pipes; pull rods are movably connected to the hole walls of the through holes; and check blocks are fixedly connected to the opposite ends of the two pull rods. Through multi-stage filtration of the multiple filter screen plates, the sewage filtering quality is improved, the situation that the sewage filtering speed is affected due to blockage of the filter screen plates can be avoided, and the sewage filtering efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment equipment, in particular to a filter device for sewage treatment equipment. Background technique [0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements of being discharged into a certain water body or reused. Sewage treatment is widely used in construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering, etc. fields, and more and more people have entered the daily life of ordinary people. The sewage generated in the factory is directly discharged to the river surface, which is more polluting. With the strengthening of environmental protection awareness, the sewage needs to be treated by the filter device before it can be discharged. . [0003] During the sewage treatment process of the existing filter device, more and more aggregates are gathered on the surface of the ...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that in the sewage treatment process of the filter device in the prior art, there are more and more aggregates on the surface of the filter layer, and the filtration rate will decrease, resulting in a decrease in the efficiency of sewage treatment, and the filter layer is filtered through a single layer, which is relatively low. Small impurities are difficult to filter and affect the quality of sewage filtration, and a filter device for sewage treatment equipment is proposed

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