The Multi-Stage dryer produces coarse, agglomerated (instant),
free-flowing dustless powders.
Agglomerated powders are
obtained in systems based upon the integrated fluid bed or belt and a
multi-stage concept where moist powder, produced during the first drying stage,
forms agglomerates, which are after-dried and cooled in the following stages.
MULTI-STAGE DRYER (DAIRY) / FLUIDIZED SPRAY DRYER (FOOD AND
CHEMICAL)
The MSD™ and the FSD™ combines spray drying
and fluid bed drying technologies and offers excellent product flexibility and
good thermal efficiency.
Pressure nozzles or a rotary atomizer spray
the feed down towards the fluid bed where agglomeration incorporating finer,
recycled material takes place. Exhaust air outlet is through the roof causing
further agglomeration in the spray zone.
Sticky products can be dried
successfully, and the concept is ideal for drying heat sensitive products, and
improved aroma retention is accomplished.
FURTHER READING:
Processing Plants for the Food & Dairy Industries - Catalogue
(PDF)