Desilting hopper is a professional equipment used for classifying, desilting and concentrating quartz sand.
Its shape is an upside down cone. A feeding cylinder is arranged in the center of the liquid level, and the bottom edge of the cylinder is lowered into a certain depth below the liquid level. The pulp is fed into the central cylinder along the tangential direction and flows out from the bottom edge after buffering. The slurry flows out radially to the surrounding overflow weir.
In this process, the coarse particles whose settling velocity is greater than the rising velocity of the liquid flow will be sunk in the tank and discharged by the bottom sedimentation. The fine particles enter the overflow trough with the surface pulp. The feed size is generally less than 2m. The grading size is 75μm or finer.
