Processing Magazine

New method for cooling and drying powders, granulates and filter cakes

February 11, 2008
Bella Series 506 dryers and coolers by Dynamic Air Inc. offer a new method of drying or cooling powders, granulates and filter cakes. The dryer can be used for drying, mixing, spraying, agglomerating and cooling in the same unit without additional equipment or costs. Operation is extremely efficient because air flows around material while it is suspended in the weightless zone of the mixer. This maximizes the total surface. which is exposed to the air, increasing the desired effect. The drying process will go through an adiabatic evaporation with thermal efficiency at about 80 percent. Only small air volumes are required compared with other fluidizing dryers. Benefits include better air distribution increases drying / cooling efficiency, homogeneous mixing during drying / cooling process, low air volume reduces filter requirements, rotating paddles prevent material lumping / air channels, increased air contact creates better thermal efficiency and random material / air movement reduces drying / cooling time.