1. Reasonable structure. The drum screen and wheel sand washer are combined with the vibrating screen to form an integral structure. The multi-stage screening and cleaning can better perform screening and cleaning, and promote the development of the screen washing industry.

2. Large processing capacity, high efficiency, easy to produce and process, short production cycle, small floor space.

3. The dual slurry pump and double cyclone are connected together to form two groups of structures, which are circulating water flow and save water consumption.

4. High degree of integration, can realize mobile operation.

Material feed into the front-end drum screen firstly, turn over and roll on the screen surface and form two materials with different grain sizes due to the tilting and rotation of the drum device.

Unqualified materials are discharged through the discharge opening at the tail. The qualified materials enter cleaning tank, roll and grind each other under the rotation of bucket to remove impurities covering the surface of gravel.

At the same time, a strong water flow formed by trommel sand washer take away the impurity and small specific gravity, and discharged from the overflow port; the clean sand is taken away by the wheel impeller onto dewatering screen for dehydration treatment.

The overflowing muddy water in water storage tank (including a small amount of qualified materials, waste water, impurities) is pumped into the hydrocyclone separator by high-pressure slurry pump.

After the centrifugal concentration, the qualified material is sent to dewatering sieve for dehydration treatment. Waste water and impurities are discharged into the return tank through the separation device.