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Operation of our original driers (circa
1970)
Wet grain from the fishtail or auger feed (A) is delivered into the feed
hopper (B). From this point it is conveyed by means of conveyor system (D) along perforated beds
(F), the depth of grain being controlled by feed gate (C). The rate of travel of grain through
the drier is determined by a variable speed control fitted to the conveyor system. At the end of
each bed, grain cascades on to the next bed below, ensuring intimate mixing of grain between the
separate stages, aspiration and polishing of the grain, producing a first rate sample.
Grain leaving the last bed falls into an auger conveyor (E), which may be fitted to discharge
the grain to either side of the machine.
Fans (G) draw the drying air from the oil fired furnace into the air chambers (H) under the
upper beds, then up through the grain and exhaust to atmosphere.
Cold air is drawn through the grain on the bottom bed and exhausted in the same manor.
The drier is of the totally enclosed suction type. Fans can be ducted outside the building or
into a settling chamber, thus ensuring absolute cleanliness and freedom from high
humidity's
during operation. Drier casing is of all galvanised construction. Adequate inspection panels are
fitted giving access to the interior of the machine and enabling the operator to see the grain at
all stages through the drier. Nylon brushes attached to the conveyor flights continuously clean
out the perforated beds.
A variable speed control is fitted to the conveyor system of the drier, enabling a physical
through-put considerably in excess of the rated one to be obtained when grain requires aspiration
only. The discharge auger can be extended to suit requirements of the individuals layout.
The oil-fired furnace is fully protected from flame failure by means of a photo-electric cell
unit, which gives an instantaneous cut-off of the oil supply should the flame fail for any
reason. This unit can also be coupled to other equipment if required, i.e. in order to stop the
handling equipment if the drier stops due to a flame failure. Thermostatic control of the oil
supply gives constant air temperature at any desired figure. Oil consumption is 1.5 to 2.5
gal./ton according to temperature.
Electric ignition is fitted as standard equipment.
The drier does not require any special foundation work and is delivered as a complete unit
with all motors and starters.
Previous drier models
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