Spray cooler
GEA Niro
* Encapsulated materials
* Fats
* Glycerides
* Hydrates
* Inorganic/organic melts
* Quaternary ammonium compounds
* Stearic acid/stearates
* Waxes
What is spray cooling/congealing?
The transition of a melt from a soft or fluid state to a rigid or solid state by cooling is called congealing. The various droplet formation techniques and the efficient droplet / air contact make the spray drying concept ideal for making spherical particle powder by congealing of melts. During the spray cooling / spray congealing process a melt is formed into particles of spherical shape by spraying the melt into a cooling chamber.
The spray cooling process
Cooling is performed by air introduced at sufficient low temperature. The melt can be atomized or prilled by a rotary atomizer equipped with a special designed wheel. Another option is to atomize the melt by pressure nozzles or 2-fluid nozzles.
Spray cooling is utilized in the chemical, food, and pharmaceutical industries. It is a convenient method of transforming melted feed stocks into free-flowing particulates of controlled particle size.
