General Information
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Chapter 2:
General Information
2-1 Models Covered in This Manual
This manual will cover the information necessary for operating your Central Drying System.
Other manuals and guides will be provided for the conveying equipment used in your system.
2-2 Necessary Documents
The documents listed below are necessary for the operation, installation, and maintenance of
Central Drying Systems. You can obtain additional copies from the manufacturer.
Make sure
that the appropriate personnel are familiar with these documents:
þ
This manual.
þ
The schematic and assembly drawings included in the customer information packet.
þ
The Customer Parts List included in the information packet.
þ
Operation and installation manuals for any optional controls or auxiliary equipment in the
drying system.
2-3 General Description
Moisture removal from hygroscopic (moisture attracting) plastic pellets is an essential step in the
manufacture of high-quality plastic products.
Our Dehumidifying Dryers are used by the plastics industry to generate very low dewpoint air
that is heated to a controlled temperature for drying plastic pellets and regrind.
The drying system consists of a dry air source and drying hoppers with process heating controls.
The dry air source controls two primary sub-systems, the process air and the regeneration circuit.
Each dryer has a left and a right desiccant bed so that one bed can regenerate while the other is in
use.
The drying system can be configured for more than 3 hoppers (consult factory for your
application requirements). The process air heater can be located on the dryer or on each individual
drying hopper. Heaters that are located on the drying hoppers can be set up with their own
independent controls or can be controlled centrally using the main dryer controller.
