Filter screen for sewage filtration

Abstract

The invention discloses a filter screen for sewage filtration. The filter screen comprises a positioning mechanism, a filtering mechanism and an auxiliary cleaning mechanism, the positioning mechanismcomprises a rectangular frame, limiting strips, sliding rods, a first reset spring, a contact and a first magnet, the upper end and the lower end of the inner side of the rectangular frame are each provided with an arc-shaped face; and the two arc-shaped faces are located on a circle with the middle point in the rectangular frame as the circle center, the limiting strips are arranged at the leftends of the arc-shaped faces, sliding grooves are evenly formed in the sides, close to the arc-shaped faces, of the limiting strips, and sliding rods are arranged in the sliding grooves in a sliding mode. When an overturning plate repeatedly deflects, the filter screen installed in a filter screen installation groove impacts a striking ball, the filter screen vibrates, impurities attached to the filter screen are vibrated off, the filter screen is prevented from being blocked, and due to the fact that the striking ball is made of rubber, and a second reset spring is arranged between one end ofthe positioning rod and a sleeve, and when the filter screen impacts the striking ball, the second reset spring can play a role in buffering, so that the filter screen is prevented from being damaged.

Description

technical field [0001] The invention relates to the technical field of filter screens, in particular to a filter screen for filtering sewage. Background technique [0002] There are often a large number of solid particles in sewage. Therefore, we need to use filter equipment for sewage filtration to filter out solid particles in sewage. The most basic filter component commonly used in filter equipment is the filter screen. The filter screen is generally The first water purification process of the entire filtration process, therefore, when the filter screen is filtering, a large amount of solid particles will be blocked in the mesh holes, which requires the use of backwashing to guide the mesh through the filter screen after a certain period of time. hole, or remove the filter and then clean it, which is very inconvenient. Contents of the invention [0003] The purpose of the present invention is to provide a filter net for sewage filtration to solve the problems raised in...

AI Technical Summary

Problems solved by technology

[0002] There are often a large number of solid particles in sewage. Therefore, we need to use filter equipment for sewage filtration to filter out solid particles in sewage. The most basic filter component commonly used in filter equipment is the filter screen. The filter screen is generally The first water purification process of the entire filtration process, therefore, when the filter screen is filtering, a large amount of solid particles will be blocked in the mesh holes, which requires the use of backwashing to guide the mesh through the filter screen after a certain period of time. hole, or remove the filter and then clean it, which is very inconvenient

Images