Sewage treatment primary filtering stepped filtering device

A technology of sewage treatment and filtration device, applied in the direction of moving filter element filter, filtration separation, separation method, etc., to achieve the effect of good interception and enlargement of filtration area

Pending Publication Date: 2022-01-14
于力
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a step-type filter device for primary filtration of sewage treatment, which can so

Method used

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  • Sewage treatment primary filtering stepped filtering device
  • Sewage treatment primary filtering stepped filtering device
  • Sewage treatment primary filtering stepped filtering device

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] In describing the present invention, it is to be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "surrounding" etc. Indicating orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a sp...

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Abstract

The invention discloses a sewage treatment primary filtering stepped filtering device, which is characterized in that a stepped filtering belt which is obliquely mounted from bottom to top is mounted between a corresponding inlet pipe and a discharging pipe of a filtering tank, the stepped filtering belt forms a filtering part by filtering units, and the section of each filtering unit is T-shaped; and the sides of the horizontal parts of the filtering units are hinged to form a complete circulating belt. The filtering units forming the step type filtering belt are main filtering elements and can be of a net-shaped structure or a porous filtering plate, the corresponding horizontal parts of the filtering units are mutually hinged to form the filtering belt similar to a conveying belt, and the vertical parts can enlarge the filtering area and prevent intercepted impurities from sliding up and down on the step type filtering belt at the same time. Especially for impurities easy to roll towards plastic bottles and the like, smaller filtering holes are formed, a better interception effect is achieved, and the problems that grating type filtering gaps are large, and shifting teeth are difficult to peel off are solved.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to a stepped filter device for primary filtration of sewage treatment. Background technique [0002] In the process of municipal sewage treatment, the pre-treatment process directly affects the subsequent processing process. Sewage treatment generally includes pretreatment, which mainly uses the successive filtering functions of coarse and fine grids to filter impurities in water quality, mainly Some floating impurities, such as leaves, straw, plastic bags, etc., and then the water further enters the grit chamber for sand filtration to filter out the finer impurities in the water body, and then the nutrients in the water body are processed through the oxidation tank and the digestion tank. Microbial degradation, and finally the final processing of the secondary sedimentation tank and disinfection tank. If the pretreatment can sufficiently remove the bulk impurities in the ...

Claims

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Application Information

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IPC IPC(8): B01D33/333
CPCB01D33/333
Inventor 于力
Owner 于力
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