Novel cloth filtering tank

Abstract

The invention discloses a novel cloth filter which consists of three parts including a tank body, a filtering ring and a backflush device; the tank bottom of the round tank body is of a baffle layer structure; the baffle plate divides the tank body into an upper sewage cavity and a bottom clean water cavity; a plurality of water discharge holes which run through the thickness of a baffle plate are uniformly distributed on the baffle plate in a radially diffusing manner; a plurality of concentric annular filtering rings at equal intervals are arranged on the outer periphery of a central support pier, and the water discharge holes in the baffle plate are communicated with inner cavities of the filtering rings on the upper part; and a suction disc is fixedly elastically arranged on a fixed frame below an operating bridge of the backflush device, and a mud scrapping plate is fixedly arranged on the bottom of the backflush device. According to the novel cloth filter, a concentric filtering ring structure is adopted, and can be adaptive to the upgrading and modification of the round tank body, and meanwhile, the filtering rings at the periphery also have the maximal filtering surface areas, so that great water through amount can be realized. According to the novel cloth filter, raw water automatically flows into the clean water cavity at the bottom from the upper sewage cavity after passing through a filtering layer by utilizing the effect of gravity, and does not need additional power, and therefore, the operation energy consumption and the cost are lowered greatly.

Description

technical field [0001] The invention relates to the field of environmental protection equipment, in particular to a novel filter cloth filter tank. Background technique [0002] In the sewage treatment, the microfiltration method is often used to filter the sewage in depth. After the conventional activated sludge method, delayed aeration method, SBR system, oxidation ditch system, trickling filter system, and oxidation pond system, the fiber rotary disc filter is Commonly used microfiltration equipment, sewage flows in from one side of the fiber filter cloth layer during work, suspended particles in it are intercepted by the fiber filter cloth, and clean water flows out from the other side of the filter cloth. After effluent, SS≤10mg / L, turbidity≤2 NTU. When the fiber turntable filter is working, the turntable is always rotating. Since there is a large amount of water on both sides of the turntable, the resistance to rotation is very large, the required motor power is large...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the shortcomings of the above-mentioned existing rotary disc filter, such as large running resistance and high energy consumption, the applicant provides a new filter cloth filter tank with a reasonable structure, thereby reducing the operating cost and improving the continuous working ability and reliability of the equipment

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