Device for collecting water surface floating debris in sewage treatment upgrading and reconstruction

Abstract

The invention discloses a device for collecting water surface floating debris in sewage treatment upgrading and reconstruction. The device includes: a sewage collecting retention box and a PLC, the sewage collecting retention box is internally equipped with a filter screen, and is communicated with a sewage inlet pipe and a reflux outlet pipe, the sewage inlet of the sewage inlet pipe is located above the filter screen, the water inlet of the reflux outlet pipe is located under the filter screen and is close to the bottom of the sewage collecting retention box, and the reflux outlet pipe is connected to a first water pump controlled by the PLC, one end of the sewage inlet pipe outside the sewage collecting retention box is connected to a sewage inlet structure having a liquid level difference to the sewage collecting retention box, the sewage collecting retention box is internally equipped with a collected sewage discharge structure that is located above the filter screen and discharges the collected water surface floating debris, and the sewage inlet structure is movably disposed relative to the sewage inlet pipe. The device provided by the invention has the advantages of: simplestructure, easy collection of water surface floating debris, easy adjustment of water surface floating debris collecting liquid level, easy return of the collected sewage to a sewage pool, easy discharge of the collected water surface floating debris, and easy control and management.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a device for collecting floating objects on the water surface during sewage treatment upgrading and transformation. Background technique [0002] In the existing sewage treatment, the method of removing floating objects on the water surface (floating objects on the water surface refers to floating mud, floating foam, scum, and small floating debris in the sewage treatment tank) is mainly through manual salvage or special extraction. system. The manual salvage method has the problem of low efficiency, but the problem of fast and efficient cleaning is not well solved by using the existing special suction device. [0003] For example, the Chinese utility model patent with the application number CN201720368393.0 discloses a floating mud discharge device with a collection pipe, which includes: a floating mud collection pipe, a first mud discharge pipe, a second mud discharge...

AI Technical Summary

Problems solved by technology

However, the sewage collection and discharge effect of this kind of device is not good, and it is easy to discharge the sewage to be treated, which increases the cost of subsequent treatment

However, it is very difficult to adjust the height of the sewage collection pipe of this device on the water surface. Even if the adjustment rod is set to hang on the external fixture, the sewage collection pipe cannot be at the best height to collect sewage, and it is easy to put a large amount of water The water is also discharged from the reaction tank, which greatly increases the workload of the sludge pump, and fails to separate the sewage from the water, reducing the effect of sewage treatment

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