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2.3 Why Choose "All-in-One" Compact Dryer
It is proved that the hygroscopic materials used in the plastics industry such as
PC, PA, PBT, PET, Nylon, etc. cannot be dried effectively by conventional hot
air drying systems because those systems depend on ambient conditions and
are relatively inefficient in reducing moisture contents. These materials demand
a steady low dew point dry air and a constant drying temperature, which
guarantee final moisture content of 0.02% or even less. The SCD provides a
closed-loop system with the dew-point of the dried air being down to -40℃ or
even lower which accelerates moisture transferring from the plastic granules to
the dry air.
2.4 Working Principle
IMM
Air suction
Material suction
Material
suction
Cooler
Cooler
Drying
blower
Honeycomb rotor
Air exhaust
Air exhaust
Dried air
Cooling water
Air
Return air
filter
Suction blower
Drying
Heater
Regenerative
heater
Regenerative
blower
Vacuum hopper
Photosensor hopper
Hopper
drying
Air suction filter
Three way valve
Shut-off suction box
Regenerative
filter
Material tank
Picture 2-1:SCD Working Principle