| 摘要 |
An improved pressure washer (10) and process are disclosed for washing cellulose pulp, wherein a mat of pulp (113) is provided on a rotating drum (40) and moves through a washing zone (54) and a dewatering zone (56) between the mat formation zone (50) and a mat removal zone (52). A hood (20) is provided over the drum (40), with appropriate seals, and a pressurized atmosphere is provided in the washing and dewatering zones (54, 56). To relieve the pressure which normally builds up inside the washer drum (40), a conduit (120) is connected between the drum interior (112) and the inlet (86) of the blower (84) used for pressurizing the hood. In this way, foam generation is minimized as the drum interior (112) is maintained at or below atmospheric pressure. A take-off roll, or doctor, is provided for removing the mat from the drum (40). |
