What is the difference between trommel and vibrating screen?

Drum screens and vibrating screens are common screening equipment, and they are used in screening powdery and granular materials. Although they are all screening equipment, in practical application, they have the following differences.

1. The shape of the sieve hole is different

The screen holes of the trommel screen are generally round holes or square holes, and the size of the holes can be customized according to customer needs. The sieve hole shape of the vibrating screen is relatively diverse, in addition to round holes and square holes, there are also diamond-shaped holes, triangular holes, long strip holes and other shapes.

2. The screening process is different

The trommel screen is generally screened by the high-speed rotation of the drum, and the material is screened through the movement of the drum. The vibrating screen uses the exciting force generated by the vibrator to vibrate the screen surface, and the material jumps on the vibrating screen to achieve screening.

3. Applicable materials are different

Drum sieve is suitable for relatively large granular materials, such as pellets, coke, quartz sand, etc.; vibrating screen is suitable for relatively small materials, such as pigments, protein powder, wheat flour, etc.

4. The screening effect is different

The screening effect of the drum screen on the material is relatively obvious, and the target material can be quickly screened out. But the vibrating screen can screen materials more carefully because the mesh size of the vibrating screen is relatively smaller.

5. Different structural volumes

The structure of the trommel screen is relatively simple, and the volume is relatively small. It is generally suitable for small sites or mobile screening equipment. However, the structure of the vibrating screen is relatively complicated, and the volume is relatively large, so it needs to be fixedly installed in the production line.

To sum up, there are certain differences between drum screens and vibrating screens in terms of structure, principle, applicable materials, and screening effects. In practical application, it is necessary to select the appropriate screening equipment according to the characteristics of the material and the requirements of the screening task.