Sterling SDF 250 - Manual (Page 55)

SDF 250/400/500
Functional description 6-18
6.3. Connection to a Pneumatic Conveying System (Optional)
Your drying facility works best in combination
with a pneumatic conveying system. In this
way, your drying hopper will always be
supplied with sufficient material.
The facility will only take as much material as
is required by the processing machines.
Therefore, the drying result will always be the
same.
Sterling drying hoppers are equipped with a
suitable flange for adding a Sterling pneumatic
conveyor.
Suction boxes with one or three suction tubes
can be supplied as well (optional). These
suction boxes are developped specifically for
this type of hopper.
The loading of the conveying line with material
is adjusted by closing or by opening of the
control cover (A).
6.4. Return Air Cooler (Optional)
F
A return air cooler must be employed if the return air temperature
is higher than +65 °C (149°F).
A return air cooler improves the efficiency of the drying cells.
&
The lower the return air temperature, the better the efficiency of
the drying cells.
The return air cooler can be connected to a coolant circuit or to the water mains network.
A
Figure 4: Suction Box