dust purification cyclone air vortex separation separator, old aged abandoned weathered rusty air cones, ducts, rusted

abandoned aged air airflow airstream automated blower centrifugal centrifuge cleaning concentrate cone cones conical container conveying cyclone cyclonic decelerated discharge downstream duct dust equipment exhaust filterless fine flow gas gaseous gradual gravity helical industrial installation large liquid load machinery mechanical moving old outlet particles pattern pipe piping plant pneumatic pre pressure processing production purification receiver refine refining removal rusted rusty screener separate separation separator solids spiral steel stream substance swirl system tangential tube vacuum velocity vortex weathered wet