Linkage type multistage sewage purification system

Abstract

The invention discloses a linkage type multi-stage sewage purification system, which comprises a first-stage purification device and a second-stage purification device, wherein the first-stage purification device and the second-stage purification device both comprise a purification box, the side wall of the purification box is respectively provided with a water inlet and a water outlet, and a sediment filter plate is installed in the purification box of the first-stage purification device. According to the invention, by arranging the linked multi-stage purification device, the intermittent water outlet mechanism, the elastic membrane, the telescopic air bag and the mud scraping mechanism, sufficient power can be generated to quickly flow into the next-stage purification device without arranging a power mechanism such as a water pump between each stage purification device, thus not only saving the production and manufacturing cost of the device, but also reducing the possibility of device failure, scraping the silt filtered on the filter inside the device, avoiding the silt accumulation from affecting the performance of the filter, and reducing the labor intensity of operators.

Description

technical field [0001] The invention relates to the technical field of sewage purification, in particular to a linkage multi-stage sewage purification system. Background technique [0002] Sewage treatment is one of the important measures to protect the environment and save water resources. Different treatment methods are adopted for different types of sewage, but most of the treatment process involves the problem of sewage precipitation, which is generally natural precipitation and takes a long time. , and it is not easy to settle completely, the effect of sewage treatment is not ideal, so the purification of sewage is realized by filtration. [0003] However, after the filter element of the existing sewage purification device has been used several times, a layer of silt filter material will accumulate on the surface and the filter element will be blocked, making it difficult to use the device next time. The filter element of tiny particles is generally inside the device, ...

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Problems solved by technology

[0002] Sewage treatment is one of the important measures to protect the environment and save water resources. Different treatment methods are adopted for different types of sewage, but most of the treatment process involves the problem of sewage precipitation, which is generally natural precipitation and takes a long time. , and it is not easy to settle completely, the effect of sewage treatment is not ideal, so the purification of sewage is realized by filtration

[0003] However, after the filter element of the existing sewage purification device has been used several times, a layer of silt filter material will accumulate on the surface and the filter element will be blocked,...

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