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Heat is fed to the product when drying in order to evaporate water or an
organic solvent. Different temperatures and times are required depending upon
the product quality and the desired residual moisture. As the evaporation of the
solvent cools the product, relatively high temperatures can be used for drying
without overheating the product. At the same time, it is important to mix the
product well during drying.
Drying in the fluid bed (-> Fluid Bed
Drying) is a very effective process, as ideal mixing is achieved very
quickly in this case. If only a little water is to be evaporated, wet granulates
can also be dried directly in the Vertical Granulator: (-> Wet Granulation).
For particles difficult to
fluidize we have developed the Glatt Spouted
Bed Technology.
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Drying options
For the drying of granulates, agglomerates and pellets, Glatt offers systems
with different capacities:
Continuous Fluid Bed Systems with
throughputs from 20kg to 5t/h
Spouted Bed Systems with throughputs
from 200g to 3t/h
Batch Fluid Bed Systems with
batch sizes from 2g to 1.5t/batch.
Solvent recovery systems for fluid bed processes and vacuum systems for
vertical granulators are available as required for the drying of organic
solvents.
(-> Solvent Recovery)
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