The useful life of filtering media is a major concern in the design of any industrial dust collection system. Since the cost of filters replacement is a recurring expense, companies want to extend their use as long as possible, which makes perfect sense!
In an initial article on this issue, we established that the initial design of the unit greatly influences the useful life of the filters and that a system that is too small for the needs increases the risk of occultation. Therefore, it is wise to have a slightly over-sized dust collection system to withstand an increase in the dust load without creating problems.
This second article on the subject will more specifically cover the types of particles and how they interact with the filtering medium.