Thoreson-McCosh Inc
EDITION 05/07/10
4
IB201001.doc
SECTION 2 TD DRYER MECHANICAL METHOD OF OPERATION
SECTION 2.1 INTRODUCTION
Your Thoreson-McCosh dryer was thoroughly tested prior to shipment and checked to
insure that its performance is up to specifications. Upon arrival in your plant, the unit
should be carefully inspected for physical damage which might have occurred in
transportation. Should any damage be observed, it should be reported to the carrier at the
earliest possible time.
Dryers are held to the crate bottom with a Z bracket. The side panels must be removed
before the Z brackets can be removed. Use a hi-low or a lift to raise the unit off of the crate
bottom. We recommend that a person steady the unit while on the hi-low.
NOTE:
For the TD-150 and up, there are cross supports and some wood supports to secure
the beds during shipping, these must be removed before power and air are
connected to the unit. Failure to remove these items will damage the unit.
The dryer should be located as close as possible to the material drying hopper it will
service. This will minimize thermal and air flow losses. The unit should be placed on any
reasonable level area or platform. The unit should be connected to the power source
indicated on the model nameplate. If the return air temperature will be above 165
F/ 74
C,
than an After-Cooler should be installed into your unit.
This dryer is a triple desiccant bed unit which continuously removes moisture from the
process air stream by adsorption. While two of the beds are adsorbing moisture from the
process air, the third is being automatically recharged.
This unit is a re-circulating dryer, recycling the drying air from the material hopper through
the desiccant beds. The regeneration air flow is completely independent of the process air
flow. The only atmospheric air that enters the process system is a small quantity which
may leak in via the material loading system, if present on the hopper. A process air filter
and regeneration air filter are provided to prevent contaminates from reaching the desiccant
material.
