Drum supported by support rollers for washing fibre material
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United States of America Patent
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May 11, 1999
Grant Date -
N/A
app pub date -
Mar 12, 1998
filing date -
Jun 12, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus for treating pulp, comprising a stand (1); a rotatably mounted drum (3); feeding and discharging members (6, 8) for the pulp; a wall member (2) which surrounds the jacket (40) of the drum in order to delimit therebetween a material space (5) with which the feeding member communicates via an inlet (7), which material space includes two treatment zones (24, 25); a delivery member (26) for delivering liquid to the treatment space via the wall member; a press member (22, 23) arranged downstream of each delivery member in order to exert a press force against the pulp; a collecting chamber (18, 19) inside the drum in connection with each treatment zone and press member for receiving liquid which is pressed through the jacket. According to the invention, the drum is supported by two support rollers (12, 13) which extend through the drum on either side of its vertical center plane and are in contact with the inner side of the drum, the support rollers being rotatably mounted on the stand (1). In addition, end walls (16) are arranged in a stationary manner at the axially opposite ends of the drum in order to close off the collecting chambers (18, 19) laterally.
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