1976 Volume 2 Issue 4 Pages 341-346
Dust cleaning performance of collapse and mechanical shaking types of fabric filters were experimentally investigated. In the collapse type, dust scaling off occurs only in the initial cleaning stage, and part of the secondary dust layer remains on the filter surface despite infinite cleaning. The existence of an optimum local cleaning duration is found experimentally and can be estimated. In the mechanical shaking type, dust scaling off occurs throughout the whole cleaning process, so that the secondary dust layer is almost completely dislodged. For a fixed cumulative cleaning duration, division into shorter rather than longer local cleaning duration was found more effective.