Sewage treatment plant radial-flow secondary sedimentation tank effluent weir automatic cleaning device

Abstract

The invention discloses a sewage treatment plant radial-flow secondary sedimentation tank effluent weir automatic cleaning device which comprises a floating plate, first mounting grooves are formed in the two sides of the floating plate, cleaning mechanisms are arranged in the first mounting grooves, a plurality of vortex tubes are arranged on a fixing plate, and first connecting pipes are arranged between the cold air ends of the vortex tubes. Second connecting pipes are arranged between the tops of the first connecting pipes, a switching mechanism is arranged in a groove, fourth connecting pipes are arranged between the air inlet ends of the vortex pipes, air supply pipes are arranged between the tops of the fourth connecting pipes, and one ends of the air supply pipes are connected with a micro compressor. The cleaning device has the beneficial effects that the pool wall of an effluent weir can be cleaned in a reciprocating circulation mode, hot air can be conveyed to the front side and the rear side of the cleaning mechanism respectively for moss inactivation and sterilization and disinfection treatment, cold air is input into the conversion mechanism to be converted into power of an auxiliary propeller, and the energy-saving and environment-friendly effects are achieved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an automatic cleaning device for the outlet weir of a radial-flow secondary sedimentation tank in a sewage treatment plant. Background technique [0002] 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. The secondary settling tank is an important part of the activated sludge system. Its main function is to separate the sludge, clarify the mixed solution, concentrate and return the activated sludge. Its working effect can directly affect the effluent water quality and return sludge concentration of the activated sl...

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Problems solved by technology

[0003] The growth of moss in the effluent weir of the secondary sedimentation tank directly affects the operation of the sewage treatment system. How to effectively remove the interference of moss on the effluent water quality is a technical problem that plagues sewage treatment plants.

[0006] Although the above-mentioned patents can clean the outlet weir of the secondary settling tank, they all have the following defects in use: since the above-mentioned patents only use brushes or cleaning rollers to clean the pool wall of the outlet weir, and when the cold winter When the season comes, because the outdoor temperature is often below zero, the moss on the wall of the outlet weir may freeze. Therefore, it is difficult to clean the frozen moss with traditional brushes or cleaning rollers. At this time, the staff is required to carry out auxiliary cleaning treatment on the wall of the outlet weir, which not only increases the workload of the staff, but also reduces the work efficiency; in addition, the cleaning device of the transmission only uses brushes or cleaning rollers to clean the pool of the outlet weir. Cleaning the pool wall, not only the cleaning effect is limited, but also it is more laborious to clean when there is moss that is more firmly attached. At the same time, because there may be more bacteria or viruses on the cleaned pool wall, in order to achieve a good cleaning of the effluent The cleaning of the weir often requires manual disinfection and sterilization of the pool wall after the equipment is cleaned. The manual disinfection and sterilization method is not only time-consuming and labor-intensive, but also has low work efficiency, which cannot well meet the needs of enterprises.

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