Screw Sand Washing Machine

The Screw Sand Washing Machine is designed to remove dust and impurities from sand by utilizing the buoyancy action of water. Through the agitation of the screw blades, water is used to filter out impurities. The machine consists of a settling tank at the bottom of a slope installation and a water tank. The screw head sinks to the settling tank and is rotated by the motor through the reducer, while cleaning water is supplied from the bottom of the settling tank to complete the cleaning, dehydration, and classification process. The machine rotor adopts a central structure, and the spiral blade is mounted on the central shaft, which is connected to the reducer for work. It is a mechanical grading apparatus that operates based on the specific gravity of solid particles, which results in different sedimentation rates in the liquid.

Working Principle

The screw sand washing machine achieves the goal of filtering water to remove impurities and lifting transportation by utilizing the buoyancy action of water to separate dust and impurities from the sand. Its unique feature is that it uses different particle size and density of particles to have different sedimentation speeds in the fluid. Fine particles and low-density particles have a slower sedimentation rate, while large particles and high-density particles have a faster sedimentation speed. This allows for effective separation of dust and impurities from the sand. The spiral sand washing machine is composed of a long spiral body, good sealing system, simple structure, strong processing capacity, convenient maintenance, and high washing rate. It is widely used in a variety of settings, such as highways, railways, municipal construction, stone factories, construction sites, and concrete prefabrication yards. It is particularly effective for sand and gravel de-sludge operations by hydropower, and can also be used for washing, grading, and dewatering sand.