The pre-treatment grille machine of automatic sewage treatment plant is assembled into a group of rotary grille chains by a unique rake tooth. Driven by the reducer, the tine chain rotates against the water flow direction. When the tine chain is transported to the upper part of the equipment, due to the guide of the sheave and the curved rail, a relative self-cleaning movement occurs between each group of tine, and most of the solid materials fall by gravity. The other part relies on the reverse movement of the self-cleaning device to clean up the sundries stuck on the rake teeth. The rake tooth chain is similar to the grid according to the water flow direction, and the clearance of the rake tooth assembled on the rake tooth chain shaft is selected according to the service conditions. When the rake teeth separate the solid suspension in the fluid, it can ensure the smooth flow of water.
The pre-treatment grille machine of the automatic sewage treatment plant is a special rake tooth made of ABS engineering plastic, nylon or stainless steel, which is installed on the rake tooth shaft in a certain order to form a closed rake tooth chain. The lower part of the mechanical grille is installed in the water inlet channel. When the transmission system drives the sprocket to rotate in a uniform speed and direction, the whole rake chain of the mechanical screen trash remover will move from top to bottom, and carry solid debris to separate from the liquid. The fluid will flow out through the gap between the rake teeth of the mechanical screen, and the whole working state will continue. Due to the special structure and shape of the rake teeth of the mechanical grille machine, when the rake teeth chain carries sundries to the upper end for reverse movement, there will be a relative self-cleaning movement between the front and rear rakes, which will cause sundries to fall off by gravity. At the same time, a pair of rubber plate brushes can be set behind the equipment to ensure that each row of rake teeth can be brushed clean when moving in this position.
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