Fluidized bed spray agglomeration
The solution for free-flowing granulate from powder
Spray agglomeration in a fluidized bed is a method for shaping that enhances the properties of powders. By spraying in a fluidized bed system, we convert powdery, non-flowing and often poorly soluble particles into free-flowing agglomerate or granulate with outstanding solubility. The method is particularly suitable as a preliminary step for making tablets as well as for manufacturing cleaning agents, drinking powders and instant products.
Spray agglomeration moves very small, powder particles in the fluidized bed where they are sprayed with a binder solution or suspension. Liquid bridges are created that form agglomerates from the particles. Spraying continues until the desired size of the agglomerates is reached.
After the residual moisture in the capillaries and on the surface has evaporated, hollow spaces are created in the granulate while the new structure is solidified throughout by the hardened binder. The lack of kinetic energy in the fluidized bed results in very porous structures with plenty of internal capillaries. The usual size range of the agglomerate is from 100 micrometers to 3 millimeters, while the starting material can be micro-fine.
Because of its porous character and large surface structure, the agglomerate can be moistened significantly better, is very soluble and can be optimally pressed. The dust-free, free-flowing product is easily dosed and optimally further processed. The variable parameters in the process, such as particle size distribution, bulk density or porosity, make it possible to produce a large number of specific particle properties. Completely according to your specifications.