Device for the preliminary fluffing, purification and separation of fiber material

摘要

To clean fibre material by opening it out and breaking down clumps, and removal of unwanted matter, the spread fibre web passes over a perforated roller with a sawtooth cladding, at least in one stage of the operation. Pneumatic underpressure is applied through the perforated roller, to give an alternating compression and reassertion action to the fibre web material passing over it. ADVANTAGE - The cleaning effect on the fibre material is intensified at the suction roller, in at least one stage of the cleaning operation.