Fluidized bed dryers are not suitable for drying food materials that are prone to agglomeration.

This is because the working principle of the fluidized bed dryer relies on high-speed airflow to suspend the material particles and dry them. For those food materials that are prone to agglomeration, the use of fluidized bed dryers may be subject to some restrictions. In addition, the vibrating fluidized bed also has some shortcomings, such as being unsuitable for materials that are prone to sticking to the wall and agglomeration, because this will affect the drying effect. For the fluidization operation of several materials with large differences in density, the vibrating fluidized bed may experience separation, affecting the drying effect. Moreover, the vibrating fluidized bed also has certain requirements for the particle size of the material. If the particle diameter is too small, it is easy to be carried away by the airflow, and if it is too large, it is not easy to fluidize. Therefore, for food materials that are prone to agglomeration, the application of fluidized bed dryers is subject to certain restrictions.

Fluidized bed dryer pictures