This maximizes the total surface which is exposedto the air, increasing the desired effect. The drying process will go through an adiabatic evaporation with thermal efficiency as much as 80 percent. Only small air volumes are required compared to other fluidizing dryers.The dryer can be used for drying, mixing, spraying,agglomerating and cooling in the same unit without additional equipment or costs. Bella > TM dryers and coolers are unique and offer anew method of drying or cooling powders, granu- lates and filter cakes. The super fast mixing capabil- ity of the Bella mixer makes it an ideal heater or cooler, since the process of drying or cooling is simply the mixing of air and product.The Bella mixer is effective at mixing air and mate-rial because the air is exposed to product in the weightless zone of the mixer for optimum contact. Also, because all material in the mixer is constantly moving, the heated or cooled air must take a longer path through the material itself, thus increasing its total exposure time to the material and improving its performance and efficiency. In addition, the low shear and constant agitation in the mixer produce a material uniform in particle size, moisture and temperature.This operation is extremely efficient because the airflows around the material while it is suspended. > Homogeneous drying of batch caused by rotating paddles. Channels will not be formed as in other fluidizing dryers. Good energy economy due to high thermal efficiency. Operating temperatures from -150F to +900аF. Customized control system. Continuous monitoring of process. >

Drying procedure > The supply air inlet temperature is as high as theproduct will allow to reduce drying time to a mini- mum. Once the drying process has begun, the product temperature immediately rises to a prede- termined maximum allowable reading. A percent- age of moisture must be left in the product to act as a coolant and to maintain a steady material tem- perature.The exhaust air temperature will be slightly higherthan the product temperature and is a measure of the dryer's efficiency. The closer the relationship between the exhaust air and the product tempera- ture, the higher the thermal...

Dynamic Air Conveying Systems and Bella TM aretrademarks of Dynamic Air Inc., St. Paul, MN. Bulletin 20507-1 (dm) 2006 Dynamic Air Inc. ? Printed in U.S.A. Corporate Headquarters Dynamic Air Inc. ? St. Paul, MN USA ? +1 651 484-2900 Worldwide Offices Australia ? Brazil ? China ? United Kingdom www.dynamicair.com >