Volatility is the main characteristic of paper, or more specifically, paper dust.
This characteristic requires special sizing for the entire system, starting from larger pieces up to the processing of fine particles.
Specially shaped cyclones are installed in order to process the former, or plenums with adjustable internal meshes. The latter have considerable scope for improvement as it is possible to vary abatement efficiency based on the number of inbound pieces of material. The flow is cascade conveyed to a pulse jet bag filter (Atex certified bags), designed according to significantly low ascent speed, for natural dust decantation before the downstream hopper.
Anti-explosion doors, overpressure valves,  cyclone off load/filter valves are all Atex certified, as required by regulations in force.