Sand washing machine is mainly used to remove impurities (such as dust) from sand products. It can remove impurities covering the surface of sand and gravel, and at the same time destroy the water vapor layer coating the sand grains to facilitate dehydration, which can achieve efficient sand washing and cleaning. According to different appearance and principle, sand washing machine can be divided into spiral sand washing machine, drum sand washing machine, wheel sand washing machine, and vibration sand washing machine.
The spiral sand washing machine has a simple structure. The impeller drive bearing device is isolated from water and water-receiving materials, which greatly avoids damage to the bearings due to water immersion, sand and pollutants. The spiral device in the equipment stirs the sand and gravel materials, so that the soil and water are mixed and discharged from the outlet on the equipment, while the sand and gravel materials are gradually screened under the action of the spiral device, and are discharged from the top discharge port.
In the wheel bucket sand washing machine, the impeller rotates slowly, and the sand enters the washing tank from the feed trough. Driven by the impeller, the sand tumbles and grinds each other to remove the surface impurities. At the same time, water is added to form a strong water flow. Impurities and foreign matter with small specific gravity can be taken away in a timely manner, and then discharged from the overflow washing tank to complete the cleaning effect.
