Anti-blockage sewage filter

Abstract

The invention provides an anti-blockage sewage filter. The anti-blockage sewage filter comprises a shell, a water inlet is formed in the upper part of the shell, a first filter chamber is arranged inthe shell, a second filter chamber is arranged in the first filter chamber, the second filter chamber is connected to a water outlet, and a sedimentation tank is arranged on the bottom of the shell; the first filter chamber comprises a herringbone flow guide plate located on the centering of top and at the position of the water inlet, first blind plates located on both sides and connected to the flow guide plate, and a first screen plate located on the bottom; the second filter chamber comprises a second screen plate located on the upper part and a second blind plate located on the bottom; a water outlet pipe is connected to the water outlet, and a suction pump is connected to the water outlet pipe. According to the filter, the blockage of a filter screen caused by large-size particles isprevented, the process of filtration is continuous, and the operation of equipment is stable and reliable.

Description

Technical field: [0001] The invention relates to a sewage anti-clogging filtering device, which belongs to the technical field of mechanical equipment. Background technique: [0002] Wastewater treatment and filtration now routinely include quartz sand filters, activated carbon filters, multimedia filters, iron and manganese filters, and precision filters. These filters are collectively referred to as mechanical filters. Metal ions are regenerated through backwashing and positive washing, that is, they are reused. However, due to the large number of large-scale debris in industrial wastewater, such as plastic bags, etc., causing blockage and pollution of filtration equipment and pipelines, before using these media filters, coarse filtration is required to filter out suspended solids in the water And large-size particles, the traditional coarse filtration method and mechanical filtration process need to continuously remove and wash the filter screen, resulting in high work i...

AI Technical Summary

Problems solved by technology

However, due to the presence of a large number of large-scale debris in industrial wastewater, such as plastic bags, etc., causing blockage and pollution of filtration equipment and pipelines, before using these media filters, coarse filtration is required to filter out suspended solids in the water and large-size particles, the traditional coarse filtration method and mechanical filtration process need to continuously remove and wash the filter screen, resulting in high work intensity and rapid equipment depreciation

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