Working principle
The roller device is installed on the frame obliquely. The motor is connected with the drum device through a coupling through a reducer to drive the drum device to rotate around its axis. When the materials enter the drum device, due to the inclination and rotation of the drum device, the materials on the screen surface turn and roll, so that the qualified materials (products under the screen) are discharged through the discharge port at the bottom of the rear end of the drum, and the unqualified materials (products on the screen) are discharged through the discharge port at the tail of the drum. Due to the overturning and rolling of materials in the drum, the materials stuck in the screen hole can be ejected to prevent the screen hole from being blocked. The principle and structure of drum sand screening machine, drum screening machine and drum screen are almost the same, which is due to the difference in people's understanding and name.
