Sand washer is designed based on sand washer and sand recycling system and adopted advanced technology, is the essential sand washer equipment, which is used with the sand maker. For improving the quality of the sand, it can wash tiny stone powder and impurity from the mixing sand made by sand maker. According to the reality of the sand and stone industries in our country, and adopting the advanced technologies, this high efficiency sand washing equipment occurred. It is mainly used in washing, classifying and dewatering sand in the areas of building site, sandstone plant, hydropower station, concrete of dam building site, concrete precast yard, glass plant, quartz sand and sand for refilling oil well

Working principle

Step1: washing

The electric motor runs slowly with the impeller after decelerated by the belt, decelerator and gears wheel. The sand and stone flow into washing launder from feeding launder, rolling with the impeller, and grinding with each other. The impurity covering the sand is washing away. Adding more water at the same time, the strong water flow will take away waste and some low-weight wastes from washing launder. The above is the whole washing process.The clean sand and stone is lift up by vane. When it goes up slowly, the water begins to drop through the mesh and fall back into the washing launder. On one hand, water is removed from the sand and stone; on the other hand, the water can be fully used. Finally, the sand and stone goes to the out launder from the rotary impeller to finish the washing task.

Step2: dewatering
Qualified sand is shoveled to the dewatering screen directly. This dewatering screen sieve is made of PU polyurethane material which has characters such as no blocking, high temperature resistance, and excellent corrosion resistance, then wet sand moisture can be highly reduced after dewatering.

Step3: recycling
Waste sand water is extracted by slurry pump into high pressure sediment separator, fine sand is sprayed onto polyurethane screen also for de-watering, the waste water flows back to return box and then flows out.