D - Textiles, Paper
21
D
92/52
D21D 1/00 (2006.01) D21B 1/34 (2006.01) D21D 5/02 (2006.01)
Patent
CA 2018175
The invention relates to a pulper for breaking materials containing fibre pulp, more particularly for breaking materials containing paper pulp or corresponding. It comprises a feed chamber (2) restricted by the pulper housing (1), a rotor unit (3) or corresponding in the feed chamber (2) adapted to be moved by means of a drive unit, a screenplate (6) with perforations (5) in connection with the rotor unit (3) or corresponding and a space (8) restricted by a housing (7) or corresponding and situating on the opposite side of the perforated screenplate (6) as seen from the rotor unit (3) or corresponding for receiving the broken material. The space (8) consists of a screening unit (9) having a first partial space (10) which is in direct connection with the screenplate (6) connected with the rotor unit (3) or corresponding, and which has a discharge connection unit (15) for the rejected portion, a second partial space (11) for the accepted portion, which partial space (11) has a discharge connection unit (16) ~or the accepted portion, a partition wall construction (12) or corresponding in the middle of said first (10) and second (12) partial space, consisting at least partly of a perforated screenplate (13) and a cleaning device (14) adapted to be moved relative to the screenplate (13) by means of a drive unit.
Borden Ladner Gervais Llp
Hautala Jouko
Valmet Corporation
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