Baghouse Design: Factors That Affect Fabric Filter Performance and Lifespan

In the wake of new EPA regulations, many plants are considering adding baghouses to aid with their pollution control strategy. Before choosing a vendor and moving ahead with construction it’s important to look at some important design and operational features unique to baghouses that may not be considered by vendors or even A&Es.

From a long-term operational and maintenance perspective, many factors are paramount for baghouse design: pressure drop limit, filter bag life, compressed air usage, instrumentation and maintenance accessibility during rebagging, bag length with cage design, interstitial velocities during online cleaning and, finally, air-to-cloth ratio.