APPARATUS AND METHOD FOR TREATMENT OF PULP

摘要

The invention relates to a washing apparatus (100) for washing and dewatering of cellulosic pulp, comprising a rotary drum (10) with outer compartments (12) on the drum for the pulp to be washed. The compartments are defined by axial compartment walls (12b) distributed along the perimeter of the drum, a stationary casing (20) surrounding the drum. An annular space (30) is defined between the casing and the drum and wherein the annular space is divided into zones (F, T1, T2, U) by longitudinal seals (40) for formation, washing and output of the pulp. The function of the seals is optimized by devices (60) for force measurement of forces acting on at least one seal with measuring means for measurement of a biasing force of a spring package in the device (60) and measurement of a force acting on a load transmission shaft (40A) of the unit, and extraction means (62) for extraction of a force acting against the seal in a direction away from the drum.