The model PPC Grace Filter Dust Collector is a heavy duty reverse pulse-jet dust collector that operates continuously without requiring the process to be shut down for cleaning. It is automatically self-cleaning while removing dry dust from an airstream. It is a versatile unit that can handle almost any type of dust. With our high patented cleaning system Qing Filter Dust Collectors operate at very high efficiencies and, for most applications, can operate very reliably with much less filter media than any other commercially available collector in its class. Cylindrical fabric filter bags with bottom discs are manufactured from felted cloths and are supported on the outside of cylindrical wire cages. The dust collects on the outside surface of the cloth.

Dust laden air enters the unit through a high inlet designed to reduce upward internal velocities which are prevalent in bottom entry collectors. QingFilter Dust Collectors designs have improved the high inlet by incorporating a dropout section and perforated baffle plate causing velocities to be lowered at the entry to the collector. This feature allows heavier mass dust particles to drop out into the hopper and reduces the amount of dust carried to the filter media. Controlling velocities and direction of air movement within a dust collector are very important to the efficiency of the unit as they reduce re-entrainment of dust.