It is a dryer which uses a surface of internally heated revolving drum to dry substances which are undergone drying. This is the basic introduction to the drum dryer. But drum dryers can be classified into various sub categories according to number of drums, feeding method, internal pressure … etc.
Types of drum dryers [According to the drum design and pressure]
· Double drum dryers
· Twin drum dryers
· Vacuum double drum dryers
· Single drum dryers
There are several feed methods and we can classified drum dryers according to them also.