Construction

System
Drying is effected by a concentric revolving reel of parallel tubes, charged with live steam. The wet processed material is fed in at one end of the machine and passes over and amongst the tubes, at the same time being conveyed at a measured rate until discharged in a dry state at the opposite end. It is a continuous process. Simon coolers are of similar design with a coolant replacing steam in tubes.

Construction
The heating (or cooling) element known as the tube reel comprises high grade steel tubes rigidly held between substantial endplates, each endplate being fitted with a cast steel, fabricated steel, or suitable alloy header which is designed to facilitate the flow of steam or coolant, and the removal of condensate through trunnions. The distributing and conveying elements are placed around the periphery and along the length of the reel.

The materials of construction are chosen to meet each particular application. The dryer or cooler casing is of robust construction, in a variety of materials to suit the application and is thermally efficient.

For better performance and ease of maintenance, outboard roller bearings are used.

Additional features which can be fitted as required are drop bottom doors to facilitate cleaning, and built-in expansion chambers to reduce fine dust carry over in vapour extraction systems.