Sewage filter

Abstract

A sewage filter is composed of a filtering case with backwater tube, a filtering net, a washing unit for secondary filtering and its driver unit, a pressure pump connected to said backwater tube, and a controller with single-chip microprocessor for outputting various control signals for secondary filtering. Said washing unit has vertical tube and internal tube arranged along said filtering net and with nozzles. Its advantages are high automation level and secondary filter function.

Description

technical field [0001] The invention relates to sewage treatment technology, in particular to a sewage filter. Background technique [0002] The traditional sewage filter takes away a large amount of liquid with the removal of impurities during the process of filtering sewage, that is to say, it consumes water. This makes the efficiency of the traditional sewage filter low, and the water saving rate is poor, which cannot meet the current increasing environmental protection and water saving requirements. During the working process, once the impurities are stuck in the mesh of the filter, there is no way to deal with it except to replace the filter. This makes maintenance and repair of conventional sewage filters difficult. So far, no good alternatives have emerged. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned defects and provide a sewage filter that does not require manual intervention, has high automation per...

AI Technical Summary

Problems solved by technology

This makes maintenance and repair of traditional sewage filters difficult

So far, no good alternatives have emerged

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