Flat plate membrane filtering assembly

Abstract

The invention discloses a flat plate membrane filtering assembly, which comprises a membrane box, wherein an aeration pipe is arranged at the lower part of the membrane box; a plurality of membrane piles fixed on the membrane box are arranged above the aeration pipe; a plurality of aeration holes right aligned with the membrane piles are formed in the aeration pipe; each membrane pile comprises awater collecting pipe; a plurality of flexible flat plate membrane sheets are arranged on the water collecting pipe in a sleeving way; a through hole through which the water collecting pipe passes isformed in each flexible flat plate membrane sheet; liquid discharging holes communicating with the inside of the flat plate membrane sheets are formed in positions, provided with the flexible flat plate membrane sheets, on the water collecting pipes; an upper sealing separation ring is arranged between the two adjacent flexible flat plate membrane sheets. The flat plate membrane filtering assemblyhas the advantages that the shaking state can be maintained by the flexible flat plate membrane sheets under the aeration state; the deposition of sludge on the surface of the membrane sheets can beeffectively prevented; the quality of the filtered water is more stable; the filtering membrane cannot be easily blocked; the frequency cleaning of the filtering membrane surface is not needed; the service life of the filtering membrane is long; the operation cost of the filtering membrane assembly can be effectively reduced, and the like.

Description

technical field [0001] The invention relates to a flat membrane filter module. Background technique [0002] Flat membrane ultrafiltration or microfiltration filtration system has a wide range of applications in the field of filtration and separation. Chinese invention patent CN201510217435.6 discloses a flat membrane filtration module, with a spacer sealing ring between two adjacent filter membrane bags. The sealing ring is set on the effusion pipe, and there is also a spacer between two adjacent filter membrane bags. The liquid pipe is also set with two pressure plates that compress all the filter membrane bags. The pressure plates are respectively located on both sides of the whole formed by all the filter membrane bags. The two pressure plates are connected by compression bolts. There are four compression bolts and they are evenly distributed. around the platen. This invention patent can increase the filtration speed of the filter assembly and reduce the operating cost...

AI Technical Summary

Problems solved by technology

This invention patent can increase the filtration speed of the filter assembly and reduce the operating cost of the filtration system. However, since the filter membrane bag is fixed, sludge will gradually deposit on the surface of the filter membrane bag during use, which will cause the filter membrane bag to be blocked. The water volume gradually decreases, and the filter membrane bag gradually loses its filtering effect. It is necessary to clean the surface of the filter membrane bag frequently to restore the filtering effect

Depending on the water quality conditions, the cleaning time and frequency of the components are different, but the frequent cleaning of the filter membrane bag will inevitably increase the operating cost, the water output is not uniform, and the working efficiency of the components cannot be guaranteed.

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