WS Fine Sand Recovering Device

For the current artificial sand production lines, the majority adopt the wet method production process. No matter what type of sand washer, its biggest shortcoming is serious loss of fine sand (grains with a grain size of less than 0.16mm), in some sand washer, over 20 percent of fine sand is lost, this shortcoming not only reduces the output, but also seriously affects sand gradation, the unreasonable gradation is caused, and the fineness modulus is relatively big, so that the product quality of the sand-making machine is greatly lowered. Excessive discharge of fine sand will also possibly cause environmental pollution.
In order to solve the problem, our company develops the VWS fine sand recovering device. The system, a fine material recovering device with world advanced level, is designed by absorbing the world advanced technology and combining actual conditions of China. The machine is widely applied to sand aggregate processing systems of hydraulic power stations, glass material processing systems, artificial sand-making production lines, recovery of coarse coal slurry of coal separating plants, environmental protection projects (slurry purification, etc.), etc., and can effectively solve the problems of recovery of fine sand.

Working Principle

Sand-water mixture is conveyed to a swirler by a residue-slurry pump, and fine sand subjected to centrifugal grading condensation is supplied to a vibrating screen by a sand-settling mouth; after being dewatered by the vibrating screen, the fine sand is effectively separated from water, a small amount of fine sand, mud, etc. is returned to a cleaning tank by a material-returning box, and when the liquid level of the cleaning tank is much high, the mixture in the cleaning tank is discharged by the material-discharging port. The weight concentration of materials recovered by the straight line vibrating screen is 70 to 85 percent, and the fineness modulus can be adjusted by adjusting the rotary speed of the pump, the concentration of the mortar and the amount of overflow water and replacing the sand mouth, so that three functions of cleaning, dewatering and degrading are realized.

Characteristics and Advantages

1. The vibration screen uses a polyurethane screen mesh; and compared with other screen meshes, the polyurethane screen mesh has the advantages of long service life, and no hole plugging phenomenon;
2. Polyurethane is arranged in the swirler, so that the service life of the whole device is prolonged, and works such as pulp concentration and liquid clarification can be successfully done;
3. To the maximum extent, the fine sand recovering system can recover 85 percent of fine materials, so that the fine sand recovering system has incomparable technical and economic advantages compared with other systems;
4. The fine grains are fully recovered, the workload of the sedimentation tank is reduced, and the cleaning cost of the sedimentation tank is also lowered.

Technical Parameters

Note: the above parameters are only for reference, without notice for adjustment.