Drum grille and using method thereof

Abstract

The invention relates to a drum grille and a using method thereof. The drum grille comprises a shell and a supporting frame arranged at the bottom of the shell, wherein a sewage inlet is formed in theend part of the left side of the shell; a water draining port is formed in the bottom of the shell; a drum assembly and brush assemblies are arranged inside the shell; the drum assembly is horizontally placed inside the shell; the drum assembly comprises a cylindrical drum screen plate and a drum rotating shaft; the brush assemblies are arranged on the inner wall of the drum screen plate and is used for cleaning the inner wall of the drum screen plate; each brush assembly comprises a brush and a brush rotating shaft; the sewage inlet is connected with an inlet water distributing pipe of the drum assembly through a water inlet pipe; the water draining port is connected with an outlet water distributing pipe of the drum assembly through a water draining pipe; the drum grille further comprises a driving assembly, a back flushing assembly and an electric control system. The drum grille has the advantages of a reasonable structural design, convenience in operation and use, low production cost and maintenance cost, safe, stable and reliable operation, high efficiency of intercepting impurities such as fiber and hair in the sewage treatment process, stable effluent quality, high degree of automation and the like.

Description

technical field [0001] The invention relates to the technical field of designing sewage treatment devices, in particular to a drum grill and a method for using the same. It is widely used in the pretreatment stage of activated sludge treatment process and MBR treatment process of urban sewage treatment plants to avoid the influence of fiber and hair impurities on subsequent process equipment, and can also be used in papermaking, textile, food processing and other fields. Reduce the BOD / COD content in the discharged wastewater. Background technique [0002] Sewage treatment is an indispensable part of human life at present. How to achieve high efficiency and energy saving in sewage treatment is the direction that current researchers are working on. As we all know, the wastewater treatment process is often involved in the pretreatment stage of the activated sludge treatment process of the urban sewage treatment plant, the MBR treatment process, etc., or in the fields of paper...

AI Technical Summary

Problems solved by technology

As we all know, the wastewater treatment process is often involved in the pretreatment stage of the activated sludge treatment process of the urban sewage treatment plant, the MBR treatment process, etc., or in the fields of papermaking, textile industry, food processing industry, etc. This type of wastewater contains a large amount of fiber, Small impurities such as hair, if not cleaned up in time, will increase the energy consumption of sewage treatment in the subsequent sewage treatment process, which is not conducive to environmental protection and energy saving requirements

In the existing technology, pretreatment grids are often used for filtration to remove the above-mentioned fine impurities as much as possible, but it is not difficult to find that the pretreatment grids with larger apertures are not conducive to the discharge of fine impurities, and the pretreatment grids with smaller apertures are not conducive to the discharge of fine impurities. In the process of processing, it is necessary to clean the aperture of the grid in time, which will also increase the process and increase the cost. At the same time, it is necessary to have a special person to check it regularly, which consumes manpower and material resources.

Some treatment methods also require the construction of channels, which have higher requirements on the basic conditions of civil engineering, and the overall treatment cost is relatively high

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