Sewage filtering method capable of conveniently cleaning filtering net

Abstract

The invention discloses a sewage filtering method capable of conveniently cleaning a filtering net. The device comprises a bottom plate, wherein a chute is formed in the upper surface of the bottom plate; a first pulley and a second pulley are connected into the chute in a sliding manner; the top ends of the first pulley and the second pulley are fixedly connected with the lower surface of a supporting plate; the left side face of the first pulley is fixedly connected with one end of a first elastic device. According to the sewage filtering device capable of conveniently cleaning the filteringnet, by matching a first pulling rope, a fourth pulley, a first connecting plate, a second elastic device, a second connecting plate, a second pulling rope, a fifth pulley, a second electric push rodand a second fixing plate, the second electric push rod is shortened, and the box can rotate and tilt anticlockwise. Then the filtering net body can be scoured with clean water and cleaned by a hairbrush, so that solid contaminants on the filtering net are eliminated out of the box, and the human operation is convenient.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage filtering method for convenient cleaning of filter nets. Background technique [0002] Sewage, usually refers to certain polluted discharge water from domestic and production. Sewage mainly includes domestic sewage, industrial wastewater and initial rainwater. The main pollutants of sewage are pathogenic pollutants, oxygen-consuming pollutants, plant nutrients and toxic pollutants. [0003] Sewage treatment is the process of purifying sewage to meet the water quality requirements of a certain water body for drainage or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering, etc., and it is also increasingly entering the daily life of ordinary people. Modern sewage treatment technology can be divided into primary, s...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a sewage filtering method for cleaning the filter screen conveniently, which solves the problem of using the filter screen to filter the sewage to remove solid pollutants, and the filter screen needs to retain solids on its surface after a period of use. Pollutants should be cleaned, otherwise the efficiency of the filter to filter sewage will be reduced. Traditional filters are fixed inside the box, and manual cleaning requires hands to be inserted into the box to remove solid pollutants, which is very inconvenient. The problem

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