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Description
Descriptio n l 2-5
The Process (Drying) Cycle
The process blower pulls moist air from the top of the drying hopper. The air pass-
es through the process filter and aftercooler, then into the desiccant wheel, where
moisture is removed. The now dry air moves through the optional precooler (if
installed) and process heater, where it is heated to the drying temperature selected
by the operator. The hot, dry air is delivered to the hopper where a spreader cone
evenly distributes the air through the material.
The Cooling Cycle
Regenerated desiccant must be cooled before it rotates back into the process cycle.
The process blower pushes a small amount of air through the cooling section of the
desiccant wheel. The cooling air then passes through the aftercooler and repeats
the circuit.
The Regeneration Cycle
The regeneration blower pulls air through the regeneration filter into the dryer’s
regeneration heater. The air is heated to 350° F {177° C} before it is pushed into
the “wet” section of the wheel. The hot air purges moisture from the desiccant.
The moist air is blown out the exhaust at the back of the dryer.
How It Works
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