The grading machine is widely used in the用黑 concentrator for shunting m一醫ine,
with the ball mill forms a clo嗎南sed loop process, to grade ore an習刀d fine mud the gravity mill,&n喝樹bsp;
or classify the pulp in met大照al processing.
Spiral classifier has four types:
high weir type single sp生遠iral, high weir type double spiral, 為醫submerged single spiral, submerged 算書double spiral.