Reject screen

Details Reject screen Reject screen

D - Textiles, Paper

21

D

209/108

D21D 5/02 (2006.01)

Patent

CA 1330207

Reject Screen Abstract The screening apparatus consisting of two screening units and arranged one after the other, with at least the first screen- ing unit being kept at overpressure against the atmosphere and the screening chambers lying inside the cylindrical screens 8 and 9 and are directly arranged one after the other, with, however, a diaphragm 11 being interposed between them, which in terms of flow, influences and determines the transition between the two screening chambers. Preferably the part of the screening chamber of the second screening unit adjacent to the rejects outlet is at least, just like the as- sociated part of the accepts chamber, connected freely with the atmosphere. This part preferably forms the dewatering zone, whereas the other part of the second screening unit adjacent to the first screening unit forms a washing zone in which the fibres are already to a large extent separated from the rejects.

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