Automatic dredging device for sewage filtration

Abstract

The invention discloses an automatic dredging device for sewage filtration. The device comprises a sewage pool and a filter screen; the filter screen is obliquely mounted in the sewage tank; a collecting tank is arranged on the inner wall of the upper part of the sewage tank; the upper end of the filter screen is connected with the collecting tank in a clamping manner; a transverse strip is fixedly mounted below the collecting tank; an L-shaped shaft is connected to the lower part of the transverse strip; a baffle is fixedly connected to the lower end of the L-shaped shaft, a telescopic mechanism is arranged between the baffle and the filter screen, a scraping plate is slidably connected to the filter screen, a pull rope is fixedly connected to the end, close to the filter screen, of the scraping plate, a driving mechanism is arranged on the collecting tank, and the pull rope is connected with the driving mechanism. Whether the filter screen needs to be cleaned or not is judged according to the situation that a blocked filter screen directly influences the sewage flowing speed, the pull rope is wound by starting the motor, the surface of the filter screen is scraped by a scraping blade in the winding process, and garbage attached to the surface of the filter screen is effectively cleaned away.

Description

[0001] This application is a divisional application with the filing date of 2019.10.28, the application number of 2019110286012, and the title of "An Automatic Dredging Device for Sewage Filtration". technical field [0002] The invention relates to the field of sewage treatment technology, in particular to an automatic dredging device for sewage filtration. Background technique [0003] Sewage treatment is the process of purifying sewage to meet the water quality requirements of being discharged into a certain water body or reused. Sewage treatment is widely used in construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering, etc. Various fields are also increasingly entering the daily life of ordinary people. [0004] At the beginning of sewage treatment, it is necessary to clean up the solid impurities in it, and then deal with the water quality safety issue. The solid impurities can be cleaned t...

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Problems solved by technology

[0004] At the beginning of sewage treatment, it is necessary to clean up the solid impurities in it, and then deal with the water quality safety issue. The solid impurities can be cleaned through a simple filter, or directly fished by mechanical equipment, but in fact, the filter is used for cleaning. Impurity waste is likely to be in the form of strips or bags. A lot of impurities will inevitably adhere to the filter screen. Too many impurities will block the filter screen and cause channel blockage. The staff will need to clean the surface from time to time, which will increase staff workload

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