Statistical Analysis of Operating Parameters on Dust Cake Characteristics in Needle Felt Filter Media

Abstract

Surface cake mass on needle felt nonwoven filter media changes under varied operating condition in pulse jet filtration. This study shows that the cleaning pulse cycle time is prime influencing factor for the cake mass on needle felt filter media. The role of cleaning pulse pressure and pulse duration are very substantial and severely decreases the residual dust cake mass, but at the same time cleaning pulse cycle time severely increases the dust cake mass load on needle felt filter media. Higher bag height and bag seam-spacing both decreases the media dust cake mass. Cleaning pulse pressure and pulse duration are not influencing the cake mass released percentage, but its interface significantly affects the cake mass released percentage. Cleaning pulse cycle time considerably increases the cake mass releasing percentage and the larger bag height decreases the cake mass releasing percentage. Fascinatingly, it is found that larger bag seam-spacing, low pulsing intensity decreases the cake releasing percentage but at higher pulsing intensity, the cake mass releasing percentage improved.