| 摘要 |
FIELD: production of cellulose. SUBSTANCE: washed pulp is supplied to between rotating drum 1 and squeeze roll 2 located inside the drum so that pulp passes along spiral path round squeeze roll 2 to be squeezed several times. In one or several points, along the path of motion of pulp, between squeezings and/or in squeezing position, washing fluid 7 is supplied. So, washing is effected, partially, as diffusing, and partially, as displacing process. EFFECT: higher efficiency of washing with minimum breakage of cellulose fibers. 2 dwg |
