Granulation represents all the techniques used for the formation of granules. It could be by accretion, crushing or agglomeration. Granules have generally a high hardness
Steam granulator is a specialized granulator where steam is used as a binder (no liquid raw materials). It offers higher distribution uniformity and better thermal balance. The steam is distributed uniformly and diffused into the powder particles, production of spherical granules with larger surface area.
Chemical granulator is a specialized granulator where the reaction between the reactants takes place within the granulator, either in pipe reactor installed in the granulator or in the bed of granulator. The slurry produced due to the reaction works as the binder.
Fluidized rotary granulator is a very specialized type of equipment where a fluidized table is installed inside the rotating granulator.
The particles are spread with solution at the bottom of the drum and are further lifted and falling onto the fluidized table. Hot air injection ensure the fluidization at the surface of the table.
The granulator-dryer is a 2-in-1 drum used in very specific applications.
In the first part, the solution is pulverized via specific headers and ramps onto the particles bed and granulation occurs. In the second part, hot air is injected, crossing the flow of granules, and the drying occurs.