Spiral classifier (Screw classifier) is widely used for
distributing ore in the close circuit with ball mill, grading ore
and fine slit in the gravity mill, grading granularity in the flow
of metal ore-dressing and desliming and dehydrating in the washing.
Advantages are simple structure, reliable working condition and
convenient operation. According to the principle that different
grains are with different specific gravity and sedimentation rate
in the liquid, the fine ore flows in the water and the coarse ore
sinks in the bottom. The classifier that has machine grading by
discharging from the top can filtrate the materials and send coarse
materials to the feeding mouth and discharge the fine material from
the pipe. The seat of the machine adopts channel steel and body
adopts armor plate and the spiral axle adopts cast iron, so it's
durable. The lifting equipment has two types, by electricity and
hand.
