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How It Works
The D carousel dryer achieves continuous, closed loop drying by passing air simul-
taneously through two heaters and three tanks of molecular sieve desiccant.
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 optional aftercooler, if installed) into the dryer’s
desiccant tank, where moisture is removed. The now dry air moves through the
process heater, where it is heated to the drying temperature selected by the opera-
tor. The hot, dry air is delivered to the hopper (after it passes through the optional
precooler, if installed) where a spreader cone evenly distributes the air through the
material.
The Cooling Cycle
A regenerated desiccant tank must be cooled before it is moved back into the
process cycle. The process blower pushes a small amount of air through the regen-
erated desiccant tank. The cooling air then passes through the optional aftercooler,
if installed, 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 425°F (218°C) before it is pushed into the
“wet” desiccant tank. The hot air purges moisture from the desiccant. The moist air
is blown out the exhaust at the back of the dryer.
2-4 l Description
Central
THE PROCESS (DRYING) CYCLE
The process blower pulls moist air from the top of the drying hop-
per. The air passes through the process filter (and optional aftercool-
er, if installed) into the dryer’s desiccant tank, where moisture is
removed. The dry air is delivered to the hopper (after it passes
through the optional precooler, if installed) where a spreader cone
evenly distributes the air through the material.