Understanding Fluidized Bed Dryers (FBD)

Many industries need to process fluidized, slurries and paste type of materials in such scenarios fluid bed dryer comes in rescue as the traditional dryers such as rotary, tunnel, conveyor, continuous tray not able to provide the desired results. FBD provide advantages such as good solids mixing, high rates of heat and mass transfer and easy material transport over others.

FBD is achieved by passing gas stream from the bottom of a bed of particle to be dried, at low gas velocities the bed is static and the particles rests on gas distributor plate. The fluidizing gas passes through the distributor and it is uniformly distributed across the bed. FBD has upper hand when it comes to drying particle size ranging from 50 to 200 μm compared to other systems. Heat transfer in gas-FBD can be achieved by multiple ways conduction, convention or radiation based on the design and operating conditions. Designing of FBD largely depends on the rate period of the particulates.

Below are the key FBD design parameters:

Dwelling time
Size of Bed
Gas flow rate
Maxx balance
Heat balance

Key application Industries:

Chemical
Food and Beverage
Ceramic
Pharmaceutical
Agriculture products
FMCG
Coating

Type of FBD’s offered by Kerone:

Batch Type
Semi-batch type
Continuous type
Plug flow FBD
Multi—stage and multi process FBD
Spouted FBD
FBD – Freeze Drying

If you are looking out for best drying solution for your fluidised, slurries or pastes and looking for best engineering partner reach out to us at www.kerone.com .

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