CLASSIFIER FOR FINE PARTICLE OF CRUSHED SAND

摘要

PROBLEM TO BE SOLVED: To provide a classifier for fine particles of crushed sand capable of improving classifier efficiency by sending the fine particles toward a classification chamber as much as possible by air going in from an air flowing-in passage. SOLUTION: A plurality of receiving plates 30 are arranged stepwise in a main body 1 so that a classifying surface 3 is formed to move crushed sand from an upper stage to a lower stage. A netlike body 32 is extended in the movement direction from the tip part of each receiving plate. Air blowing out from an air flowing-in passage 31 is blown into the classification chamber 4 from below of the netlike body. The netlike body is installed to have a falling gradientθfrom the upper surface of the receiving plate.