A Theory on Collection Efficiency of Cyclone Dust Collector : Study on the Cyclone, 4th Report

Abstract

Applying Stokes' law to the settling velocity of a dust particle, we noticed the balanced diameter of a particle and its max. value on the wall. Using Rosin's formula for the size distribution of dusts and being assumed partial collection efficiency against the dust diameter, we got many approximate formulae for the total collection efficiency, of which 1 st approximation (the critical particle diameter theory) is sufficient for the practical use. To confirm this theory the effects of inlet velocity, cyclone size, exit diameter, kind of dusts, cylinder wall length, inlet area, cylinder diameter and cone angle were measured, and we found that it coinsides with the results on the whole, although the absolute value of the collection efficiency will not be obtained only by this theory.