抄録
Separation performance of several small cyclones have been studied experimentally. A cyclone, the diameter of which is about 100mm, can separate submicron particles, because there are less than 10% of particles above 1μm in the downstream flow of the cyclone. A cyclone, the diameter of which is less than 100m, is not useful because there is no further improvement in the separation performance by the reduced diameter, and the clogging of the dust discharge is more liable to occur. A German type cyclone, which has an inverted cone in the dust chamber, also performs well.