Fluid bed spray agglomeration is also often in colloquial terms refered to as fluid bed granulation. Powders are fluidized and a binder solution or suspension is sprayed onto the fluidized particles, creating liquid bridge which form agglomerates from the powder. As soon as the desired size of the agglomerates is achieved, spraying binder is stopped and the liquid inside of granule is evaporated and exhausted by fan. The structures created by the liquid bridge are then maintained by solid binder. Whatever has been liquid inside the agglomerates is now void, as such permitting modified size and porosity of the agglomerates for their intended function, e.g. for compression into tablet or fast dissolving instant drink applications. The lack of kinetic energy in the agglomeration zone results in light structures with plenty of internal capillaries. The usual size range found on the market is approximately 0.2 to 2.5 mm.
 
        Typical features of fluid granulation
       • dust free
       • free flowing
       • highly dispersible
       • excellent solubility
       • easily compressible
       • low bulk density
       • adjustable porosity
 
 
         Equipment Model: FL FLUID-BED GRANULATOR