The grille decontamination machine is assembled into a set of rotary grille chains by a unique rake tooth. Driven by the motor reducer, the rake gear chain rotates against the direction of the current to fish the scum floating on the water. When the rake gear chain runs to the upper part of the equipment, due to the guide of the sheave wheel and the curved rail, each group Relative self-cleaning movement occurs between the harrow teeth, and most of the solid matter falls by gravity. The other part relies on the reverse movement of the sweeper to clean the debris stuck on the rake teeth. According to the direction of water flow, the rake chain is similar to the grille, and the rake tooth gap assembled on the rake chain shaft can be selected according to the conditions of use. When the rake teeth separate the solid suspended matter in the fluid, it can ensure the smooth flow of water. The whole working process is continuous or intermittent.

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