 Hot
Air Dryers - DH-4 Series
Foremost
Machine Builders makes hot air dryers for drying hydroscopic
and non-hyroscopic plastic resins. While our hot air dryers can
handle hydroscopic materials with non-critical drying requirements,
they are most frequently used for removing surface moisture from
non-hydroscopic materials and as resin preheaters or processes that
require controlled raw material termperature prior to processing.
Tthe DH-4
Hot Air Dryer
is specifically designed to surface dry regrind material such as,
polypropelene and polyurethane. Heating unit and hopper sizes will
vary based on the particular application parameters.
Hot Air Dryers
Our hot air dryers use warmed air as a drying medium and are typically
chosen for particulate materials that are non-hydroscopic, i.e.,
absorb moisture only on the surface, or for surface drying hydroscopic
regrind material such as polypropelene and polyurethane.
How Hot Air Dryers Work
In the DH-4 series, heat is used to lower the relative humidity
of the surrounding air which improves its drying ability. The moist
air is expelled into the atmosphere while fresh ambient air is drawn
in to continue the process.
Applications
Typically, hot air dryers are used for stripping surface moisture
from raw materials for maintaining relatively dry conditions in
large storage vessels such as silos that maybe subject to a build
up of condensation moisture when outdoors and subject to variations
to day/night temperatures in humid environments. Also useful as
a material preheater which maybe equally important where material
is stored outside in colder conditions and then brought inside where
it is warmer and more humid. A cold pellet brought inside where
it is warmer will collect surface moisture on the pellet spoiling
the process. A hot air dyer is an excellent choice for preventing
this effect.
For more information on our hot air dryers, please contact us at
sales@foremostmachine.com.
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