High Weir Spiral Classifier

The high-weir spiral classifier operates by feeding the finely ground slurry into the water tank through the feed inlet located in the middle of the settling zone. The inclined water tank houses the slurry settling zone, where the spiral rotates at a low speed, agitating the slurry and causing fine particles to suspend to the top and flow over the overflow weir. Coarse particles settle to the bottom of the tank and are transported by the spiral to the discharge outlet as return sand. The position of the overflow weir is higher than the bearing center of the spiral shaft at the lower end and lower than the upper edge of the spiral at the overflow end. The high-weir overflow weir is higher than the spiral's rotating shaft but lower than the upper edge of the spiral at the overflow end. This type of classifier has a larger settling zone area compared to the low-weir type, and its weir height can be adjusted within a certain range, that is, settling