纸浆洗涤是制浆生产线中的一个关键操作。有许多种不同类型的洗涤机可供使用,包括洗涤压榨机、脱水压榨机、丝网压榨机、扩散机和过滤机等。普通类型的双辊压榨机具有多孔外表面的两个相反转动的辊。浆幅形成在相应辊上并沿转动方向在部分地围绕辊的桶内输送,直到辊之间的所谓压隙为止。引入的纸浆可借助于分配装置,例如使用转动螺杆沿纵向分配到相应辊上。双辊压榨机使用置换洗涤以及 Pulp washing is a key operation in the pulping line. There are many different types of washers available, including washing presses, dewatering presses, screen presses, diffusers and filters. Two-roll presses of the general type have two counter-rotating rollers with a porous outer surface. The pulp web is formed on the respective roll and conveyed in the direction of rotation in a barrel partially surrounding the roll up to the so-called press nip between the rolls. Pulp introduced can be dispensed longitudinally onto the respective roll by means of a dispensing device, for example using a rotating screw. Double roll presses use displacement washing as well