Silt settling device

Abstract

The invention provides a silt settling device. The device is internally equipped with a spiral drainage mechanism, which is beneficial to separation of sand grains and water and can achieve a good desanding effect; a settled sand detection mechanism is arranged to control the operation of a settled sand treatment mechanism, and has high work efficiency; the settled sand treatment mechanism is setto make settled sand treatment convenient and rapid, and improves the work efficiency; the setting of a collapsible protective layer can prevent settled sand from entering a screw rod and affecting the operation of the settled sand treatment mechanism. The silt settling device provided by the invention has the advantages of simple structure and convenient operation.

Description

technical field [0001] The invention belongs to the field of sewage treatment equipment, and in particular relates to a sediment settlement device. Background technique [0002] The grit settling device is a pretreatment unit that uses physical methods to precipitate sand particles from sewage and separate them from rice. Its function is to separate particulate matter with a relative density greater than 1.5 and a particle size of 0.2 or more from sewage. Sand settling devices are generally installed before lifting equipment and treatment facilities to protect water pumps and pipelines from wear and tear, prevent clogging of subsequent structures and shrinkage of sludge treatment structures, and at the same time reduce inorganic components in activated sludge and improve activated sludge. Mud activity. [0003] If the sand settling device is cancelled, the following hidden dangers will be brought to sewage treatment: 1. Sand particles entering the primary sedimentation tank...

AI Technical Summary

Problems solved by technology

[0003] If the sand settling device is cancelled, the following hidden dangers will be brought to sewage treatment: 1. Sand particles entering the primary sedimentation tank will accelerate the wear of the sludge scraper and shorten the service life; 2. It will reduce the effective volume of the biochemical tank; 3. It will easily lead to The blockage of the sludge discharge pipe will aggravate the wear of the impeller of the sludge pump; 4. The sand particles entering the sludge digester will reduce the effective volume and shorten the cleaning cycle; 5. The increase in the sand content in the sludge will greatly affect the operation of the sludge dewatering equipment

Therefore, in the process of sewage treatment, the grit chamber plays a vital role. However, the existing grit chamber has a poor grit effect and low work efficiency, which brings hidden dangers to the subsequent process.

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