The conveying of fine dust down a 4” to 6” diameter pipe for distances up to 1500 feet allows the ability to remove dust from the dust collection system and separately convey the dust to a plant silo, yard silo, or surge bin where a mechanical separator (cyclone) can deposit the dust and vent the conveying air to a local dust collector.

This avoids re-entrainment by not returning dust to the belt. The pneumatic transport will convey the surge of dust to an appropriate discharge point other than the conveyor belt, eliminating both re-entrainment and "end of run purge" dusting. Pneumatic transport also allows collectors to be located at grade or locations for easier maintenance access and to be more economical, eliminating costly structural supports to position collectors above conveyors for gravity spouting.