River sand is produced by repeated collision and friction under the action of water for a long time under natural conditions. Its composition is relatively complex and its surface has certain smoothness. The natural river sediment is not clean after treatment, and there are many kinds of impurities, so it needs to be cleaned by sand washing machine. Generally, wheel type sand washing machine is used to removing shell fragments，stone，stone powder and other impurities.
The working principle of the wheel type sand washer is that the motor drives the impeller to rotate slowly after the motor decelerates through the triangle belt, reducer and gear. The river sand enters the washing tank from the feeding tank, rolls under the drive of the impeller, and grinds each other, so as to remove the impurities covering the sand surface, and damage the water vapor layer covering the sand particles, so as to facilitate dehydration. After adding water, a strong water flow is formed to timely remove impurities and small specific gravity The foreign matter is taken away and discharged from the overflow outlet washing tank to complete the cleaning function. The clean river sand is taken away by the blade, and then the river sand is poured into the discharge tank from the rotating impeller to complete the cleaning function of river sand.
Advantages of LDHB double wheel sand washing machine:
1.With automatic detection, safe and reliable – set over vibration display and alarm device, in case of bad operation, can send out a warning, make the equipment stop working, achieve the purpose of protecting the machine.
2.A new type of sand washing equipment is developed by adopting double wheel washing technology and combining with the actual situation of international sand and stone industry. The sand washing machine has the advantages of high cleaning degree, reasonable structure and high output.
3.The structure is simple and the performance is stable. The impeller rotating bearing device is isolated from the water and the water receiving material, which greatly avoids the bearing damage caused by water immersion, sand and pollutants.
4.In the process of sand washing, the loss of sand is less, especially the transmission part is isolated from water and sand, so the failure rate of the sand washer is much lower than that of the sand washer commonly used at present.