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Dehumidifying Dryers Chapter 2: Functional Description 11 of 59
Chapter 2: Functional Description
2-1 Models Covered in This Manual
This manual provides operation, installation, and maintenance instructions for 15, 30, and 60
cfm dehumidifying dryers. Model numbers are listed on the serial tag. Make sure you know
the model and serial number of your equipment before contacting the manufacturer for parts
or service.
Our dehumidifying mini dryers are designed to generate heated dehumidified air at carefully
controlled temperatures for use in plastic drying systems. Drying systems are sized to meet
the specific requirements stated by the Customer at the time of purchase.
2-2 General Description
Dehumidifying dryers are used to generate very low dew point air heated to a controlled
temperature for drying plastic pellets and regrind.
Our dryers force hot, dry air through resin in a drying hopper, where air picks up moisture
from the material and draws it back to the dryer. In the dryer, a desiccant bed strips moisture
from the air. The dried process air is then re-heated and delivered back into the drying
hopper to continue to remove moisture.
Figure 15: Typical Dryer Air Flow Schematic
Drying Hopper
Valve
Moisture
Exhaust
Filter (Separates
Dust)
A
mbient
Air Flow
High pressure
prepheral blower