Spiral Classifier

Spiral classifier is the machine that discharges sand by spiral rotation. It has single spiral classifier and double spiral classifier according to number of the screw. It has high weir and low weir according to the depth of spiral blades in the overflow surface. It’s widely applied to concentrator together with the ball mill which forms closed circuit distribution sand or to classify sand, fine cement, and slurry or to remove cement and dewater. It’s featured by simple structure, reliable and convenient operation.  

Spiral classifier is by way of different size of solid particles and gravity. Thus, based on the principle of different speed of sedimentation in the liquid, fine particles float out of the water while coarse particles settle down in the tank. It’s the classifier by pushing materials upward spirally and sending coarse materials to the inlet by spiral blades and discharging fine materials from the overflow tube. The base adopts channel steel and the body is welded by steel plate. The water head and bearing head of the spiral shaft adopt wear-resistant pig iron sleeve and the lifting device has electrical and manual types.