A drum screen is a Trommel screening equipment, mainly composed of a motor, a reducer, a drum device, a frame, a sealing cover, an inlet and outlet, etc. The drum body of the drum screen is generally divided into several sections, and the sieve hole apertures on each section are the same, but the sieve hole apertures of different sections are arranged from small to large to meet the screening needs of materials of different particle sizes.

 

 

The working principle of the Trommel Screen is based on the rotation of the drum and the movement of the material on the surface of the drum. After the material enters the interior of the drum screen through the feed port, the drum begins to rotate, and the material is subjected to centrifugal force on the surface of the drum and moves along the length of the drum. Smaller particles will be screened out through the sieve holes or screen plates, while larger particles will be retained on the surface of the drum. As the drum continues to rotate, materials of different sizes are separated and moved forward along the length of the drum, and finally discharged through the outlet.

 

 

The output of the Trommel Screen is relatively large, generally 50-800 tons per hour, and the specific output depends on the volume of the drum and the nature of the screened material. Although the output of the Trommel Screen is large, the screening accuracy may not be as good as that of the vibrating screen, and it cannot perform multi-stage screening like a vibrating screen. However, drum screen performs well when screening materials with a single particle size requirement, and has a wide range of uses, suitable for a variety of industries and materials.