Sector filter disc

Abstract

The invention relates to a sector filter disc which comprises a plastic frame and a filter screen. Filter cloth compression grooves are arranged at edges of the plastic frame, the filter screen is connected in a compression manner through filter screen convex surface plastic pressing strips matched with the filter cloth compression grooves, the plastic frame is fixedly closely connected through a bolt structure, pressing strip screw holes are arranged in the middle of each filter cloth compression groove, and corresponding screw holes are also arranged on each filter screen convex surface plastic pressing strip. The plastic frame serves as a filter frame, cost is saved, filter cloth can be replaced at anytime as required, and use efficiency of the filter is improved greatly by close connection of the filter cloth through the compression grooves and the convex surface plastic pressing strips.

Description

technical field [0001] The invention relates to a filtering device of a filter, in particular to a filter disc in the filter. Background technique [0002] Filtration is a common solid-liquid separation method in water treatment, so the filter disc in the filter plays a vital role. At present, in the filter discs used in the market, its filter screen and filter disc are cast together, and the filter screen cannot be replaced. There are also filters whose filter discs are designed vertically, but there are some defects in actual operation: (1) Its filter cloth adopts nano-filter cloth, which has poor water permeability, large filter resistance, and frequent blockage, resulting in backwashing of the filter cloth Too frequent will reduce the service life of the filter cloth and increase energy consumption. (2) The filter plate is supported by a stainless steel welded frame to support the filter cloth. Due to the high cost of stainless steel, in order to save materials as much...

AI Technical Summary

Problems solved by technology

At present, the filter discs used in the market, its filter screen and filter disc are cast together, and the filter screen cannot be replaced

There are also filters whose filter discs are designed vertically, but there are some defects in actual operation: (1) Its filter cloth adopts nano-filter cloth, which has poor water permeability, large filter resistance, and frequent blockage, resulting in backwashing of the filter cloth Too frequent will reduce the service life of the filter cloth and increase energy consumption

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