Automatically adjustable filter screen piece cleaning device for sewage treatment

Abstract

The invention provides an automatically adjustable sewage treatment filter screen piece cleaning device which comprises a mounting seat and a filter screen, an outer cylinder fixedly sleeves the outer side of a rotating shaft, a rotating ring is rotatably mounted in the outer cylinder, a first magnetic block is fixedly connected to the side, close to the rotating ring, of a movable rod, and a second magnetic block is fixedly connected to the inner wall of the rotating ring. The left end of the piston plate is movably connected with the driven plate through a connecting rod, the right end of the piston plate is fixedly connected with a punching plate, and a cleaning needle is arranged on the right side of the punching plate. At a high flow speed of sewage, the centrifugal force by a movable rod is increased, the movable rod moves outwards and makes contact with a magnetic conductive sheet, after the magnetic conductive sheet is magnetized, the magnetic conductive sheet and a second magnetic block repel each other in the same pole, a rotating ring is pushed to rotate, the rotating ring drives a hitting ball to retract through a gear piece, then the moving range of an impact plate and a cleaning needle is narrowed, and the cleaning needle can still be inserted into a filter screen and the impact plate impacts the filter screen, so that the situation that the impact plate continuously impacts the filter screen and the filter screen is excessively impacted is avoided, and the device is safe and reliable to use.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to an automatically adjustable cleaning device for filter screen parts for sewage treatment. Background technique [0002] With the rapid development of society and the rapid development of science and technology such as industry and construction, it has also brought about increasingly serious environmental problems. Among them, sewage pollution is a relatively common and serious environmental protection problem, only to achieve sustainable development At present, all countries in the world have formulated sewage treatment and discharge standards, which require the collection, filtration and purification of sewage and other processes, and can only be discharged after meeting the qualified discharge standards. [0003] The composition of sewage is generally more complex. For example, domestic sewage contains kitchen waste, yarn and stones, and industrial sewage c...

AI Technical Summary

Problems solved by technology

[0003] The composition of sewage is generally more complex. For example, domestic sewage contains kitchen waste, yarn and stones, and industrial sewage contains metal blocks, asbestos and stones. Therefore, sewage needs to be filtered before purification. Generally, the debris is separated by installing a filter screen in the flowing sewage. However, small particles such as stones and entanglements such as silk threads in the debris are easy to block the filter holes of the filter screen, which affects the normal operation of the filter. , while the traditional method of manual cleaning and additional electric drive cleaning device is time-consuming and laborious, and the cleaning work cannot be adjusted according to the state of the water flow, which is inconvenient to use

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