Spiral Sand Washer Spiral sand washer is widely used in the washing of materials in the sand and gravel plant, mining, construction materials, communication, chemical, hydropower, concrete mixing plant, etc. It can efficiently clean the sand, taking away the impurities adhered to the sand and breaking the vapor coatings around the sand particles to facilitate dehydration. It is applied to sand and gravel plant, construction sites, hydropower plant dams, glass making, and development of oil well, etc. Spiral Sand Washer Features: 1.Reliable drive system, high capacity and low energy consumption; 2.Simple and good seal structure, stable performance and convenient operation; 3.A wide range of applications, suitable for cleaning various sizes of materials 4.The finished product has a high degree of cleanliness, extremely low content of mud and stone powder; 5.The spiral blade is made of cast steel with high wear-resistance and long service life. Working Principle : When operating, the motor drives the impeller slowly rotating through the V-belt and reducer. The sand is put into the washing tank through the feeding chute, and rolls over by the impellter driving. During the rolling, the friction between the sand particles strips the impurities, and breaks the vapor coatings around the particles in order to facilitate dehydration. Meanwhile, massive water is put into the washing tank to form a strong water stream to take the impurities and small percentage of foreign matters away immediately and discharge them from the overflow port. The clean sand is taken by the impeller, and finally puts into the discharge groove, finishing the whole washing process.