Introduction of Double Drum Dryer:
Kefan Double Drum Dryer is a combination of advanced technology both at home and abroad.This roasting machine is mainly used to dry the limestone slag,coal powder,slag,clay stone in the production of building materiasl.It is also applied to chemical ,metallurgical  and cement industries.
Operating principle of Double Drum Dryer:
Wet feed is charged as a batch and is subjected to indirect heating while undergoing agitation due to the action of tumbling. The operation is normally carried out in vacuum.Recovery of solvent is possible by condensing the vapours generated during the drying operation.
Special features of Double Drum Dryer:
1. Granular wet materials can be handled.
2 .Low temperature operation is possible.
3. Solvent recovery can be carried out.
4. System is batch.
5 .High energy efficient.
6.Mode of heating is indirect.
8. Closed operation.