Sizing Of A Rotary Dryer
Rotary dryers , called the “workhorse of chemical dryers” , belong to the most widely used class of continuous dryers in process industries. These dryers are suitable for relatively free-flowing, non-sticky and granular materials; for example, almost all types of crystals after crystallization and washing. Typical applications of rotary dryers are in drying o table salt, sodium sulphate, ammonium sulphate, and many other salts, drying of sand, minerals, organic solids, polymer resin beads , to mention a few. A rotary dryer consists of a slowly rotating slightly inclined cylindrical shell fed with the moist solid at the upper end. The material flows along the rotating shell, gets dried and leaves the dryer at the lower end. It is difficult, if not impossible, to design a rotary dryer on the basis of fundamental principles only. The available design correlations are a few in number and may not prove to be satisfact...