Changes in the Performances of Filter Media During Clogging and Cleaning Cycles

摘要

The performance of two filter media used in industrial air cleaning were studied both in the initial state (new filter) and after a number of collection and pulse pressure cleaning cycles. The main difference between them is that one has anti-clogging properties and the other does Not. The test aerosol is composed of alumina particles with a median volumetric diameter of 2.6 μm (MMAD=4.8μm) generated at a concentration of 700 mg m~-3. Filtration took place at a velocity of 2 cm s~-1. Two parameters, namely pressure drop and efficiency, were monitored according to the collection and cleaning cycles.