公开(公告)号：US4673496A

公开(公告)日：1987-06-16

申请号：US774139

申请日：1985-09-09

申请人： Ralph W. Turner, Jr.

发明人： Ralph W. Turner, Jr.

IPC分类号： B01D33/00 ,  B01D33/06 ,  B01D33/36

CPC分类号： B01D33/073 ,  B01D33/44

摘要： Pulp sheet take-off apparatus which allows removal of drum valve parts from existing high vacuum rotary drum filters and significantly increases the production capability of existing and newly designed high vacuum rotary drum filters includes an enclosed take-off chamber that is mounted immediately adjacent and parallel to the face of the filter drum on the descending side thereof, the chamber being connected by piping to the filter drum barometric leg or other subatmospheric pressure source as a means of maintaining subatmospheric pressure in the chamber equal to or less than the internal pressure of the filter drum. A fixed pulp sheet slide is arranged to remove the pulp sheet from the filter surface while atmospheric air is prevented from entering into the chamber, and pulp sheet discharge mechanism includes a vaned discharge roll that is mounted immediately adjacent and parallel to the top surface of the stock slide structure and includes means for biasing the discharge roll against the pulp sheet and means for rotating the discharge roll in the direction of pulp sheet movement to draw the pulp sheet out of the take-off chamber between the roll and the stock slide structure. The pulp sheet may be discharged to atmosphere or directly to an air tight repulping or shredding vat following the filter drum, the repulping and shredding vats being directly connected to and maintaining the same subatmospheric pressure as the take-off chamber.

摘要翻译： 纸浆送纸装置允许从现有的高真空旋转鼓式过滤器中去除鼓阀部件并显着提高现有和新设计的高真空旋转鼓式过滤器的生产能力，包括一个紧密相邻并平行安装的封闭式起飞室 在其下降侧的过滤鼓的表面上，该室通过管道连接到过滤鼓气压或其它低于大气压的压力源，作为将室内的低于大气压的压力等于或小于 过滤鼓。 固定的纸浆片滑动件布置成从过滤器表面移除纸浆片，同时防止大气进入到室中，纸浆排出机构包括直接安装在平行于 储存滑块结构，并且包括用于将排出辊偏压在纸浆片上的装置，以及用于沿纸浆片移动方向旋转排出辊的装置，以将纸浆片从辊和储存滑块结构之间的取出室中拉出。 纸浆片材可以排放到大气中或直接排放到过滤鼓之后的气密重新榨制或切碎的大桶中，重新排放和切碎的桶直接连接并保持与起飞室相同的低于大气压的压力。