Grille trash-holding treatment system

Abstract

The invention relates to the field of sewage treatment, and concretely relates to a grille trash-holding treatment system. The grille trash-holding treatment system comprises a grille trash removal machine and a trash holding gate, an oxalic acid washing assembly is arranged in the grille trash removal machine to remove a scale calcification layer, and inner washing assembly is arranged to removea hair and fiber layer; the installation sequence of all the washing assemblies is optimized, the washing angle of every washing assembly is optimized, the washing assemblies cooperate with each other, and front washing provides an addition effect to rear washing to achieve deep cleaning of a grille mesh plate; inner washing nozzles are arranged in a manner of staggering up and down, and the leftwashing direction and the right washing direction of the inner washing nozzles are opposite, so multi-angle coverage cleaning of the grille mesh plate is achieved; a residue baffle plate is arranged to avoid the influences of residues on the inner washing assembly and improve the running stability of the inner washing assembly; the rotation of gate plates of the trash-holding gate in gate frames is controlled to realize the bypass function of a grille channel; and a grille device for increasing the water throughput is additionally arranged between the trash holding gate and the grill trash removal machine to improve the water treatment capacity of the grill trash removal machine.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a grid pollution-stopping treatment system. Background technique [0002] The screen-type internal inflow grille is a relatively new type of high-efficiency grille decontamination equipment that combines pollution interception and decontamination. It has a compact structure, small size, high slag interception efficiency and reliable operation. More and more sewage treatment plants are applying inflow screens to the pretreatment stage. In actual use, there are problems of difficult cleaning and short service life due to blockage caused by long-term use of the grille screen, which is manifested in the following aspects: the slag on the screen is not washed cleanly, and it is easy to block the water hole and reduce the flow rate; The slag is entangled on the stencil, which cannot be removed by normal flushing, causing blockage; the components in the sewage make the stencil easy to s...

AI Technical Summary

Problems solved by technology

In actual use, there are problems of difficult cleaning and short service life due to blockage caused by long-term use of the grille screen, which is manifested in the following aspects: the slag on the screen is not washed cleanly, and it is easy to block the water hole and reduce the flow rate; The slag is entangled on the screen, which cannot be removed by normal flushing, causing blockage; the components in the sewage make the screen easy to scale, resulting in blockage of the screen

[0003] In the prior art, the washing of the grille mesh mainly adopts the method of setting an external flushing device outside the frame of the grille decontamination machine. However, in actual use, the external flushing can only wash away the slag in the holes of the grille mesh. and due to the unreasonable installation position and flushing angle setting, the long-term flushing of the screen is not clean, not only for the surface slag, but also unable to remove the hair fiber layer inside the grid screen and the long-term scale calcification inside and outside the screen Floor

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