Instruction Manual ND IM 3 JAN 2017
Instruction Manual
IM ND 3 JAN 2017
Page 11
4 DESCRIPTION OF OPERATION
•
Compressed air is filtered by two coalescing filters in series, to remove all aerosols as
well as any particles, all down to 0.01 micron.
•
Inside the control box the compressed air flow splits. The bulk of the airstream is
expanded to atmospheric pressure through a pressure regulator (to lower the dew point),
heated and injected into the middle of the hopper. An Air Amplifier, driven by the
expansion of the compressed air, is used to re-circulate much of the air in the upper part
of the hopper.
•
This insures that heat is transferred into the material quickly, evenly and at the correct
velocity, to insure good drying. The inlet air temperature to the hopper is controlled by a
thermocouple and a solid state temperature controller (located in the right side of the
control box and it is the top controller & labeled “UPPER HEAT”).
•
The rest of the compressed air goes through a special membrane, located inside the
control box. This membrane filters out the water vapor, which is continuously exhausted
through vents in the side.
•
The dry air is then expanded to atmospheric pressure through a pressure regulator,
heated and injected into the bottom of the hopper to dry the material in the lower part of
the hopper. The dry air temperature to the lower part of the hopper is controlled by a
thermocouple and a solid state temperature controller (located in the right side of the
control box and it is the one on the bottom labeled “LOWER”). After drying the material,
the moisture laden air is vented through the relief valve at the top of the hopper.
5
Air Flow Diagram of the
patented NovaDrier™
Patent # 6,584,701 B1
