Particle motion in mixed flow dryers

Differences in flow rates of this nature have a significant effect on the unevenness moisture content dried material, since material which remains drying chamber for an unnecessarily long time is over-dried and under-drying problem remaining dryer too short time. In article, I analyzed increasing particle-wall friction particle velocity field. The research has shown that dead zones are formed vicinity rough walls, reduce uniformity flow. results show tribological properties inner wall surfaces dryers can very efficient operation dryers.