论文部分内容阅读
本文介绍了细分散物料悬浮液的新的分级方法的成果。这种方法是根据固体表面上提升液层中发生的现象提出的。分级作用包括在提升液层中,由于急剧的速度梯度,使得固体颗粒垂直圆盘表面做径向移动。用实验室型盘式分级机 DK—200和工业型设备 DK—1000对高岭土悬浮液进行了试验。提出了影响分级诸因素的理论分析结果。盘式分级机的工业研制(用于造纸业涂料高岭土的生产)证实了定性试验的结论,即在最高的转盘转速下,可得到最细的分级产品。DK—1000分级机预计用于1～100μm,特别是1～20μm 粒度范围的分级。它有如下几个优点:能耗小,无噪音,工作平稳,结构简单,不受悬浮液磨损的作用影响,等等。
This article presents the results of a new grading method for finely divided material suspensions. This method is based on the phenomenon that occurs in the ascending liquid layer on a solid surface. Staging effects include moving the solid particles perpendicular to the disk surface due to the steep velocity gradient in the lift layer. The kaolin suspension was tested with a laboratory disk sorter DK-200 and an industrial equipment DK-1000. Put forward the theoretical analysis of the factors that affect the classification results. The industrial development of disc classifiers for the production of kaolin, a coating paper for the paper industry, confirms the conclusion of the qualitative test that the finest graded product is obtained at the highest turntable speed. The DK-1000 classifier is intended for classification in the particle size range of 1 to 100 μm, especially 1 to 20 μm. It has the following advantages: small energy consumption, no noise, stable work, simple structure, not affected by the effect of the suspension wear, and so on.