Particles are coated in order to change their surface properties and by this means the behavior of the particles. Glatt offers different processes for the coating of different particles. This equipment choice allows the customer to choose specific levels of coating quality. The coating liquid can be a solution, suspension or melt. In all processes the coating liquid is sprayed onto the particles. Low viscosity and small droplets are required to ensure even spreading of the coating liquid on the surface of the particles.
Mixing different liquid raw materials before spray granulation they will be very evenly distributed in the granules. By this means liquids can be encapsulated into a matrix of solid material. This encapsulation process is mainly applied in the food industry. If necessary the particles can be finally encapsulated with a secondary coating.
Encapsulation is applied for the protection against oxidation, to influence and improve particle properties like stability in storage, hygroscopicity, free flowing properties, surface structure, solubility, appearance, taste, odor etc.
Whether spray granulating, agglomerating, coating, pelletizing, drying, cooling and combinations of them.
Processes can be combined in one system.
Very gentle handling of temperature-sensitive materials.
High throughputs from 20 kg/h to 10 t/h.
The GF can accomplish all these processes. Since the inlet air plenum is divided into multiple chambers it is possible to introduce air with different velocities and different temperatures into the processing chamber.
The brand name "Glatt" stands for high quality process equipment in granulation and coating processes in all powder processing industries. Such fluid bed and spouted bed process equipment is used whether to produce dust-free, value added granules and pellets from powders or liquids or to influence and improve particle properties like stability in storage, hygroscopicity, free flowing properties, surface structure, solubility, appearance, taste, odor etc.
Spray granulation is the drying of liquid while simultaneously building particle size. Seeds for the granulation can be charged (external seeds). Alternatively the seeds are formed within the processing chamber by abrasion (internal seeds). Compared to agglomerates these granules are harder and denser. The spray granulation process was developed in the early 1980s at what is now Glatt Ingenieurtechnik. Since that time Glatt is one of the leading vendors within this technology.