Mainly have the advantages of large action area, small hydraulic loss, thorough slag cleaning, high separation efficiency, multiple functions in one, compact structure, convenient maintenance work, long life, and the overall effect of local load, so that the system can withstand relatively Large load and reduce the anchoring force requirement of a single bolt. The working principle of rotating drum mechanical grille decontamination: install it in the water channel at 35° from the horizontal plane , the sewage flows into the drum from the end of the drum, the water flows out through the cracks of the grid, and the solid waste is filtered in the grid basket Inside. The cleaning device with rake teeth cleans the grating gap during circular motion. The rake teeth extend into the grid to take out the solids. It is different from the internal inlet grille. When the cleaning device is at the highest point, it is washed and washed by water. The role of the slag baffle is to remove the garbage from the rake teeth and fall into the spiral conveying bucket of the garbage collection device. In the transportation process, it is dehydrated by the effect of variable pitch, and squeezed dry in the uppermost compression zone, and the squeezed water is returned to the drain, and the garbage is finally sent to the container or subsequent equipment for treatment.

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