公开(公告)号：US3677040A

公开(公告)日：1972-07-18

申请号：US3677040D

申请日：1971-05-14

Applicant: SUNDS AB

Inventor： PETTERSSON BENGT EDVARD

IPC: D21C9/02 ,  D21C7/00

CPC classification number: D21C9/02

Abstract: In the liquid treatment of cellulosic pulp by a procedure comprising passing a column of a slurry of the pulp to be treated through a cylindrical vessel, in one direction, and forcing a treating liquid through the column, in a direction transverse to the major axis of the column, from a delivery space for such treating liquid toward a collection vessel for used treating liquid, said collection vessel having a pervious wall immediately adjacent said column on that side thereof remote from said delivery space, it is desirable-in the interest of preventing clogging of the pervious wall-intermittently to interrupt inflow of liquid into said vessel by pressure variations induced by a gaseous fluid discharged under pressure adjacent said pervious wall.

Abstract translation: 在纤维素浆的液体处理中，包括使待处理纸浆的浆液通过圆柱形容器沿一个方向通过柱的一个方向，并迫使处理液通过柱，沿横向于长轴的方向 该柱从用于这种处理液体的输送空间朝向用于处理液的收集容器，所述收集容器具有在远离所述输送空间的该侧的紧邻所述塔的透水壁，为了防止 堵塞渗透壁 - 间歇地阻止液体通过在邻近所述透水壁的压力下排出的气体流体引起的压力变化而流入所述容器。