The Conventional Spray Dryer in the co-current mode, standard,
non-agglomerated fine to medium coarse powders can be produced. In the fountain
nozzle mixed flow mode a free-flowing, coarser product can be
obtained.
CONVENTIONAL SINGLE STAGE SPRAY DRYER
The basic system is a single stage co-current spray dryer with rotary or
nozzle atomization. Product discharge can be either 1-point with the exhaust
air from the cyclone or bag filter collector, or 2-point from chamber base and
collector via a conveying / cooling system.
Used where the powder
directly meets the quality specification. Otherwise, a vibrating fluid bed can
be provided for postdrying or cooling of the chamber fraction.
With
nozzle atomization, co-current as well as counter-current mixed-flow can be
obtained.
FURTHER READING:
Processing Plants for the Food & Dairy Industries - Catalogue
(PDF)