Operating instructions

3.4. Hopper heaters (optional)
If differing drying temperatures are required in the different drying hoppers,
hopper heaters must be installed on the drying hoppers. The drying temperature
of each drying hopper can be set centrally at the dryer.
3.5. Automatic motor flaps (optional)
Automatic motor flaps cut off the drying hopper from the drying circuit as soon as
the material is completely dried. The supplementary heating system is also
switched off. Dehumidified air flows into the drying hopper only after new, moist
material is added to the hopper. This ensures that the material is not damaged,
and saves a considerable amount of energy.
Temperature probes at the feed opening of the drying hopper and inside the
drying hopper enable comparison of feed opening and material temperature,
from which the drying degree of the material can be calculated.
If the drying hopper is to be cleaned or blocked, the motor flap can be closed via
the dryer. The supplementary heating system is then automatically switched off.
CTT 300
Functional description 3-5