Fluid Bed Dryer

In Fluid Bed Dryer the wet material is transposed to a fluidised state by hot air stream that surrounds the material completely & therefore the heat transfer rate achieved is very high & the temperature distribution throughout the product is uniform. Due to this, drying time is considerably reduced & therefore high production rates are achieved in comparison to other dryers. As the product is in the close contact with hot air at low temperature & also for short duration, the physical & chemical properties of the product are generally not affected & therefore the dryer can effectively be used for the heat sensitive products. Due to movement of product during drying, lump formation, case hardening etc., are minimized. The Fluid Bed Dryers are not suitable for drying of liquids or pasty material.