公开(公告)号：US4541571A

公开(公告)日：1985-09-17

申请号：US440298

申请日：1982-11-09

申请人： Anssi Karna ,  Heikki Liimatainen

发明人： Anssi Karna ,  Heikki Liimatainen

IPC分类号： D21B1/14 ,  B02C25/00 ,  D21B1/24 ,  D21D1/00 ,  B02C23/18

CPC分类号： B02C25/00 ,  D21B1/24 ,  D21D1/002

摘要： A method of controlling a grinding process in a pocket grinder in which a batch of wood in at least one pocket is pressed against a rotating grindstone by a pressure shoe displaceable in the pocket. At predetermined intervals an apparently produced amount of pulp is calculated at separate measuring points of the grinding stroke of the pressure shoe and the specific energy consumption calculated on the basis of this amount of pulp is compared to a target figure for the specific energy consumption. The batch grinding is adjusted depending on a deviation of the specific energy consumption from the target figure. The compaction of the batch in the pocket during the stroke of the pressure shoe is taken into account in the grinding adjustment by correcting the calculated apparently produced amount of pulp in relation to a change in the density of the batch to be ground so that the fluctuations in the fineness of the pulp produced at separate measuring points of the pressure shoe are maintained as small as possible during the grinding stroke of the pressure shoe.

摘要翻译： 一种控制袋式研磨机中的研磨过程的方法，其中至少一个口袋中的一批木材通过可在口袋中移位的压力靴压靠在旋转的磨石上。 以预定间隔，在压靴的研磨行程的单独测量点处计算明显产生的纸浆量，并将基于该纸浆量计算的比能量消耗与特定能量消耗的目标图比较。 根据具体能量消耗与目标图的偏差来调整批量研磨。 在研磨调整中考虑到在压力靴的行程期间袋中的批次的压实，通过相对于待研磨的批次的密度的变化来校正计算出的明显产生的纸浆量，使得波动 在压力靴的研磨冲程期间，在压力靴的分开的测量点处产生的纸浆的细度保持尽可能小。