With special internal fittings, the rotary dryer can be used even for the treatment of difficult materials.

 

In order to achieve a product-specific treatment, the streams of material and hot gas can be either uniflow or counterflow. Also, the inlet temperature of the hot gases can be limited to suit the product characteristics.

 

As the rotary dryer utilises hot exhaust gases, e.g. from a downstream kiln process, it operates with optimum energy efficiency and at minimum cost.

 

Normally the rotary dryer has two bearing assemblies and welded-on slide rings. It is usually equipped with a chain drive (wrap around), but for high capacities other solutions can also be used, such as floating tyres, girth gear and pinion drive etc..