A APPARATUS FOR SEPARATING A MATERIAL ACCORDING TO ITS SIZE AND A METHOD OF SEPARATING THE MATERIAL

摘要

A device and a method for separating materials according to the size by centrifugal force are provided to detect easily the separated materials with an optical detector by holding specific materials on a rotary plate. A centrifugal separator for separating materials according to the size as well as weight has a rotary drum(14) turning around a second rotary shaft(12) vertical to a first rotary shaft(10). The rotary drum is composed of: a sample injection port; at least one rotary plate radially extended from the second rotary shaft toward the inner surface of the rotary drum to receive the sample on the surface; and a discharge port for discharging the separated sample. The rotary plate has at least one selected from a group comprising protruded and recessed parts, on the surface.