Wenger Series VII Dual Plenum Dryers
Controlled, Balanced Airflow for Uniform Product Drying

 

FEATURES
* Hinged, insulated, outside doors on all four sides permit easy access for maintenance and cleaning.
A Plug style burners shown are suitable for natural gas or LPG.  Other fuels are possible.  Direct fired heating is shown.  Indirect heating is available.  Steam and electrical coils are also as standard options.
B Roof, floor and all four sides are high temperature insulated.
C Fans are plug style that permit fan to be removed as complete assembly for maintenance.  Drives and bearings are mounted externally for easy access.
D Modular sections are 2.1 meters (7 feet) long.  Additional modules may be added later to increase capacity.
E Conveyor drives are independently driven with speed controlled by AC VFD's.
F Dryer is designed for minimum disassembly for shipping and readily fits into containers.
G Dryer is completely assembled and tested in our factory before shipping.
H Last two sections of bottom pass of dryer shown are cooler.  Cooler is separated from dryer by a floor. Spent cooler air is used as dryer make-up air for improved efficiency.  Optionally, bottom pass of dryer can extend outside of dryer as cooler, in which case, cooler is not insulated.
J Hinged interior doors on inside of side plenums permit easy access to conveyors.  Doors are removable and may be rearranged to reverse air flow direction through product.
I Side plenum fines augers are optionally available to collect fines from low pressure side plenums and deposit them in cross fines augers.
K Tubular frames are welded in fixtures for interchangeability.
L Internal surfaces are sloped to avoid fines accumulation.
M Sanitary legs shown allow for thermal expansion and meet requirements for seismically active locations.  Leg heights are furnished to customer requirements.  Taller legs are cross braced for added stability.
N Conveyor supported on bolted-in, easily replaceable rails.
O Dual plenum design results in increased moisture uniformity.  Air flow shown is right to left in first half of dryer, and left to right in second half.
P Heavy duty fines wipers are attached to conveyor to wipe fines on floor into cross fines auger.  Optionally, a separate fines system is available for products requiring that wipers do not contact product.
Q High tensile conveyor chain.
R Cross fines augers are provided for each floor to gather fines.
S Conveyors may be hinged or overlapping trays, and either perforated or slotted.  Fine mesh polyester or stainless screen is available for small products.
T All bearings are mounted externally for ease of maintenance.
U 3 pass version shown.  1 - 3 passes are available, as well as multiple stages.
V Several material options are available, ranging from mostly mild carbon steel (with stainless steel in high corrosion areas) to product contact items being stainless steel to almost everything being stainless steel.
W A dispersion plate between burners and fans mixes air for uniformity.
X Oscillating spreader is shown.  A number of other options are available, depending on product requirements, including oscillating belts, biased slot vibrating, leveling rake, leveling auger, etc.
Y Manhole panels in roof provide access to heat chamber for maintenance.
Z All gas plumbing and electrical devices are mounted outside of dryer for easy maintenance.  All interconnecting piping is provided.  All electrical devices, less motors, are pre-wired to junction boxes.