In drying operation the material characteristics such as heat sensitivity, moisture
content and particle size are of great importance, which should be taken into account
in selection of proper design and conditions for the process. Rigorous quality requirements,
i.e. gentle drying of heat sensitive materials, stable, well-controlled and economic
operation can be fulfilled by using Mechanically Spouted Bed (MSB) dryer with inert
particles developed to eliminate some drawbacks of the conventional spouted bed dryers.
In this paper the construction and the main features of MSB-dryer are presented. Different
tasks with special quality demands, namely drying
of bovine serum albumin and moisture removal from tomato pulp of thermoplastic behaviour,
and a method to accomplish these requirements are shown.