The rotating drum type mechanical fine screens is made of the fine screens sheet and made into a drum-shaped fine screens basket according to the fine screens gap. The water to be treated flows in from the front of the fine screens, filtered through the fine screens, and flows to the outlet of the pool. When the water level difference reaches a certain value, the rotary toothed rake installed on the central axis will rotate to clean the dirt. When the dirt-cleaning toothed rake collects the dirt to the top of the basket, it will start to unload the slag; then turn it 15° , The slag cleaning tooth plate on the top of the basket automatically scrapes the slag adhering to the rake teeth and discharges it into the slag slot. The fine screens slag is lifted by the screw conveyor at the bottom of the trough, to the upper squeezing section, squeezed and dewatered, and then discharged onto the conveyor belt or transported in and out of the garbage truck. The solid content of the filter residue after being squeezed and dehydrated can reach 25%-45%, which plays an important role in reducing outbound transportation costs and preventing secondary pollution.www.khnwatertreatment.com