The system is equipped with a self-cleaning compressed air bag filter. A centrifugal fan with a high-efficiency reversing blade impeller and a 75 kW motor guarantees a flow rate of 50,000 m3/h.
The filter, with dimensions 6000 x 2500 x H8500 mm, consists of about 350 filtering sleeves d—150, each 3,500 mm long.
Galvanised sheet metal manifolds connected the filter to the various suction points.
The extraction duct is equipped with a base on the ground.
