Tube Bundle Dryers are based on the
conduction mode for drying. The product
to be heated and dried only contacts
steamheated tubes, and not directly
steam. Tube bundles are operated on
the counter-flow principle (i. e.
steam flows in the direction opposite
t0 the direction of the material flow).
The Tube Bundle Dryers are designed
by considering the wet and dry product
flow characteristics, lump crust formation
tendency and thermal sensitivity of
the material in dry condition.