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Rotary screen is mainly composed of the motor, reducer, roller device, airtight cover, feed port and discharge port for screening materials.
It is mainly used for sieving big or small stones, separating soil and gravel, coal blocks and coal powder, etc. It can also be called gravel screen or stone separator. Since roller device is composed of filter screen, it is also called rotary sieve.
In addition, in the mineral processing industry, the machine is also called ore screening equipment or rotary screener. There is not much difference in structure, and the working principle is basically the same.
Roller device is tiltly installed on the frame. Firstly, motor is connected with speed reducer, which joins the roller device through the coupling, and roller device is driven around its axis. When the material enters into the roller device, material on the screen surface flips and rolls due to the inclination and rotation of roller device. Qualified material will be discharged from the bottom of roller drum while unqualified material will be discharged from the rear of the discharge port.
The gravel screen is mainly used for classification of quarry stone with different sizes, separation of soil from stone, coarse coal and coal powder separation in coal industry, and bulk and powdery material separation in chemical industry.
