Influence of cloth structure on dust dislodgement from fabric filters

The residual dust loading and filter drag (flow resistance) of fabric filters after reverse pulse cleaning are strongly dependent on cloth structure. Filament/spun combination fabrics have smaller residual dust loadings but greater residual filter drags than all spun cloths. Calendered needlefelts have smaller residual dust loadings but greater residual filter drags than untreated felts. The dust-cake specific resistance coefficient was found to be independent of cloth structure.