Swirling self-cleaning filter

Abstract

The invention relates to the field of sewage treatment equipment, in particular to a swirling self-cleaning filter. The filter comprises a straight cylinder and a conical cylinder, wherein a swirling sewage discharge system is formed between the lower part of the straight cylinder and the conical cylinder and comprises a sewage inlet pipe arranged at the lower part of the straight cylinder in the tangential direction and a swirling sewage outlet pipe arranged at the lower end of the conical cylinder; a self-cleaning adsorption drainage system is arranged at the upper part of the straight cylinder and comprises a cylindrical filter element fixed in the straight cylinder and a hollow rotating shaft, a clean water outlet tube is arranged on the wall of the straight cylinder, and a plurality of sewage suction pipes are arranged on the hollow rotating shaft at intervals in the axial direction; a sewage suction head and an elastic element for tightly pressing the sewage suction head on the inner wall of the cylindrical filter element are arranged at one end, away from the hollow rotating shaft, of each sewage suction pipe; an adsorption sewage discharge pipe is connected to the lower end of the hollow rotating shaft through a rotary joint, one end, away from the hollow rotating shaft, of the adsorption sewage discharge pipe extends out of the wall of the conical cylinder, and a pressure control valve is arranged at the end. The filter is good in filtering effect and easy to maintain, and has a self-cleaning function.

Description

technical field [0001] The invention relates to the field of sewage treatment equipment, in particular to a swirling self-cleaning filter. Background technique [0002] In sewage treatment, the existing filters for separating the solid phase from the liquid phase in sewage have a single filtration form, low separation efficiency, and frequent backwashing. On the other hand, the transmission device and the sewage suction device of the existing filter are often connected in a fixed manner, which causes inconvenience to the installation and maintenance of the filter. Contents of the invention [0003] The invention aims to provide a cyclone self-cleaning filter with good filtering effect, convenient maintenance and self-cleaning function. [0004] In order to solve the above technical problems, the technical solution adopted in the present invention is: a cyclone self-cleaning filter, including a cyclone sewage system and a self-cleaning adsorption sewage system, the cyclone...

AI Technical Summary

Problems solved by technology

[0002] In sewage treatment, the existing filters used to separate the solid phase and liquid phase in sewage have a single filtration form, low separation efficiency, and frequent backwashing

On the other hand, the transmission device and the sewage suction device of the existing filter are often connected in a fixed manner, which causes inconvenience to the installation and maintenance of the filter.

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