When the spiral sand washing machine is working, the motor drives the impeller to rotate slowly after decelerating through the triangle belt, reducer and gear. The sand enters the washing tank from the feeding tank, rolls under the driving of the impeller, and grinds with each other to remove the impurities covering the surface of the sand and destroy the water vapor layer covering the sand, so as to facilitate dehydration. At the same time, add water to form a strong water flow, and timely change the impurities and small specific gravity The material is taken away and discharged from the overflow outlet washing tank to complete the cleaning function. The clean sand is taken away by the blade, and finally the sand is poured into the discharge chute from the rotating impeller to complete the cleaning function of the sand.
1. The structure of the sand washing machine is simple and the performance is stable. The impeller drive bearing device is isolated from water and water receiving materials, which greatly avoids the damage of bearings caused by water immersion, sand and pollutants.
2. Compared with the traditional spiral sand washing machine, this kind of sand washing machine has the following advantages when it is used for sand washing in sand and stone field:
<1> The loss of medium and fine sand and stone powder is very little, and the fineness modulus of the washed construction sand grade meets the national standards of "construction sand", "construction pebble, gravel".
<2> There are almost no wearing parts except screen.
<3> Long service life, no maintenance for a long time. The sand washing machine has the advantages of high cleaning degree, reasonable structure, large processing capacity, small power consumption, less sand loss in the process of sand washing, especially the transmission part of the sand washing machine is isolated from water and sand, so its failure rate is much lower than that of the commonly used sand washing machine, which is a suitable choice for upgrading the domestic sand washing industry.