| 摘要 |
The invention relates to a n arrangement (100) for washing and dewatering cellulose pulp comprising: a press roll (102), which is arranged to rotate during operation and which has a perforated outer surface (104) for dewatering the pulp; a stationary guide surface (106), arranged at a distance from the perforated outer surface (104) of the press roll so as to enclose the press roll (102) in the circumferential direction, such that a substantially closed vat (107) is defined between stationary guide surface (106) and the press roll (102); a pulp passage (108), being provided in said vat (107) between the perforated outer surface (104) of the press roll (102) and its stationary guide surface (106), such that during operation, pulp that is fed into the vat (107) is transported in a direction of rotation and, at the end of the pulp passage, is pressed in a pinch (110), possibly between the press roll and a second press roll. A radial distance (D) between the stationary guide surface (106) and the associated press roll (102) is generally increasing towards the pinch (110), such that the vat (107) diverges, towards the pinch (110). |
