Rotary screen

Trommel screens, cylindrical screens, and rotary screens feature high permeability, making them particularly suitable for screening sticky and wet materials, with screen holes that are not easily clogged. They are widely used for the screening and grading of raw coal, sand, crushed stone, and other materials in industries such as power, mining, metallurgy, building materials, and chemicals.

Product Overview:
Trommel screens, cylindrical screens, and rotary screens feature high permeability, making them particularly suitable for screening sticky and wet materials, with screen holes that are not easily clogged. They are widely used for the screening and grading of raw coal, sand, crushed stone, and other materials in industries such as power, mining, metallurgy, building materials, and chemicals. The SH-type rotary screen can perform four-stage screening, with two sections in the finished product area. The SH-type rotary screen comes with a built-in hopper, a扇形 gate at the lower part of the hopper, and a chute in the coarse material section to directly convey coarse materials to transport machinery, facilitating process layout. If customers require only one section in the finished product area, i.e., a three-stage rotary screen, this should be specified when placing an order.

Working Principle:
Trommel screens, cylindrical screens, and rotary screens mainly consist of components such as a motor, reducer, drum device, and frame. The drum device is installed at an incline. The motor is connected to the drum mechanism via the reducer, driving the drum mechanism to rotate around its axis. When materials enter the drum device, due to the inclination and rotation of the drum device, qualified materials (undersize products) are discharged through the screen mesh on the outer circumference of the drum, while unqualified materials (oversize products) are discharged from the end of the drum. The drum device of the SH-type series rotary screen is sealed with a body cover, effectively preventing dust from escaping during operation and eliminating dust pollution. When replacing the screen mesh, simply open the body cover for easy operation.

Product Features:
1. Wide adaptability to materials: Suitable for screening various types of materials, whether low-quality coal, coal slurry, soot, or other materials, screening can proceed smoothly;
2. Simple and diverse feeding methods: The feed inlet can be designed according to on-site requirements, whether using belts, hoppers, or other feeding methods, no special measures are needed for smooth feeding;
3. High screening efficiency: The equipment can be equipped with a comb-type screen cleaning mechanism, allowing screening regardless of how dirty or mixed the materials entering the screening drum are, thereby improving screening efficiency;
4. Large screening capacity and easy scalability: For the same size, the circular area is larger than other shapes, resulting in a larger effective screening area, allowing materials to fully contact the screen mesh, thus increasing the screening capacity per unit time. Its simple structure, convenient layout, and novel yet mature technology make it highly scalable;
5. Low energy consumption: The motor power is small, only one-half to one-third of other screen types, and the operating time for processing the same amount of material is only half that of other screen types, resulting in low energy consumption;
6. Good working environment: The entire screening drum can be sealed with an isolation cover, completely eliminating dust dispersion and block splashing during the screening cycle, avoiding pollution of the working environment;
7. Low equipment noise: During operation, due to the low rotational speed and isolation from the external environment by the sealed cover, noise cannot be transmitted externally, thus reducing equipment noise;
8. Long service life and minimal maintenance: The rotary screen consists of several circular mesh rings, with a total screening area far larger than that of other screen types. Combined with high screening efficiency and short equipment operating time, it has a long service life, with few wear-prone parts and minimal maintenance;
9. Convenient maintenance: The upper sealing isolation cover of the equipment can be removed without affecting normal operation, making maintenance very convenient.