Domestic sewage filtering impurity removal device and multistage filtering equipment

Abstract

The invention discloses a domestic sewage filtering impurity removal device, which relates to the technical field of sewage treatment and solves the problems that the existing device filter screen meshes can be easily blocked, and the manual cleaning is needed. The domestic sewage filtering impurity removal device comprises a tube body and a metal filter screen, wherein the metal filter screen isarranged at the upper part of an inner cavity of the tube body; a rotating shaft is rotationally arranged at the center line part of the inner cavity of the tube body through a bearing; a second rotating shaft is rotationally arranged at one side, far away from the water inlet pipe, of the top of the inner cavity of the tube body through a bearing; a plurality of hairbrush strips are welded and fixed at the bottom end of the second rotating shaft at equal interval in the annular direction. The invention also discloses multistage filtering equipment comprising the domestic sewage filtering impurity removal device. The domestic sewage filtering impurity removal device is installed; impurities in the sewage can be automatically cleared away; the metal filter screen meshes blockage caused by sundries accumulation is avoided; the filtering efficiency is improved; an aeration device is installed; an aeration pipe is driven to vertically swing in a matched way; the aeration angle is continually changed; the aeration range is increased; the sewage treatment efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of domestic sewage filtration, in particular to a domestic sewage filtration and impurity removal device and multi-stage filtration equipment. Background technique [0002] Domestic sewage is the wastewater discharged from residents' daily life, mainly from residential buildings and public buildings, such as residences, institutions, schools, hospitals, shops, public places and industrial enterprise toilets. The pollutants contained in domestic sewage are mainly organic matter (such as protein, carbohydrates, fat, urea, ammonia nitrogen, etc.) and a large number of pathogenic microorganisms (such as parasite eggs and intestinal infectious viruses, etc.). The organic matter present in domestic sewage is extremely unstable and easily rots to produce stench. Bacteria and pathogens reproduce in large numbers using organic matter in domestic sewage as nutrients, which can lead to the spread of infectious disease...

AI Technical Summary

Problems solved by technology

[0003] The existing domestic sewage treatment devices are all equipped with filter screens to first filter and remove impurities from the sewage. However, after one end of the filter time, the debris is easy to accumulate, thereby blocking the mesh of the filter screen, affecting the filtration efficiency, and requires manual cleaning on a regular basis. , increasing the cost

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