Multi-stage sewage treatment recycling system of suction-type sewer scavenger

Abstract

The invention discloses a multi-stage sewage treatment recycling system of a suction-type sewer scavenger. The multi-stage sewage treatment recycling system disclosed by the invention comprises a sewage collecting tank and a clean water tank. Sewage in the sewage collecting tank can be automatically subjected to multi-stage filtering and settling treatment by the multi-stage sewage treatment recycling system when the water level of the sewage collecting tank is greater than a first threshold and the water level of the clean water tank is smaller than a second threshold, and clean water obtained by processing the sewage is stored into the clean water tank. Compared with the prior art, the multi-stage sewage treatment recycling system disclosed by the invention has the advantages that the operation time of the suction-type sewer scavenger is prolonged, and the sewage suction efficiency of the suction-type sewer scavenger is improved. In addition, the sewage treatment granularity is improved by the multi-stage sewage treatment recycling system disclosed by the invention due to multi-stage filtering and settling treatment, and the use and maintenance costs of the suction-type sewer scavenger are reduced.

Description

technical field [0001] The invention relates to the environmental sanitation engineering machinery industry, in particular to a multi-stage sewage treatment recycling system for a sewage suction truck. [0002] Background technique [0003] With the development of special construction machinery vehicles in China, the application of sewage suction vehicles in urban sewers is becoming more and more common. The main functions of the sewage suction truck include collecting, transporting and dredging to clean up sewage. Most of the existing sewage suction trucks only have the function of simple vacuum suction of sewage or high-pressure flushing with clear water. In the actual application process, due to the limited volume of the vehicle's own water tank, the amount of water that can be stored is small, resulting in a short operating time for the sewage suction truck. Moreover, frequent addition of clean water also reduces the operating radius and work efficiency of the sewage ...

AI Technical Summary

Problems solved by technology

However, these sewage treatment systems cannot be used in the high-pressure dredging or vacuum suction stage of the sewage suction truck, so the sewage suction truck cannot perform long-lasting dredging and sewage suction operations

In addition, the sewage treatment particle size of these treatment systems is not high, for example: particles below 50μ cannot be treated, and the treated water still contains a large number of fine flocs

When the high-pressure water pump uses treated water for cleaning, a large number of fine particles and flocs will wear the high-pressure water pump and the high-pressure flushing pipeline greatly, thereby increasing the use and maintenance costs of the sewage suction truck

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