Drum dryer also is also known as rotary drum dryer androtary dryer, and thedrum dryer principleis as follows:

The drum dryer mainly is one large rotating cylindrical tube, and the wet material is taken into direct contact with the hot flue gas in the large rotating cylindrical tube.

On the inner wall of the large rotating cylindrical tube, there are many welded lifting boardsin a certain slope.

When the drum dryer is working, the large cylindrical tube is rotating at a certain speed, and the wet material inside the large cylindrical tube ismade up and down by these lifting boards, and then the wet material contact with the hot flue gas fully. Finally, the moisture of the wet material is evaporated into steam, and goes out of the rotary drum dryer by the suction of the high pressure draught fan.

Then howis the hot flue gas generated ? Usuallythe hot flue gas is generated by the hot air furnace.Traditionally, people set up the hot air furnace when installation, and itwill cost the users many time and money. Nowadays,Dingli Machinerydevelop one new type hot air furnace withmuch higher heat efficiency. Dingli Machinery will produce well the hot air furnace at the factory, and later when the customer get the machines, and the customer can connect the hot air furnace to the rotary dryer easily according to the foundation map. Thus, it saves much civil works and time for the customers.

What is more, how does the hotflue gas goes into the drum dryer ? Atone end of the drum dryer, there is one high pressure draught fan connected to the rotary drum dryer by air duct tube. Under the strong suction of the high pressure draught fan, the hot flue gas goes into the large rotating cylindrical tube and heat the wet materials.

For more details of drum dryer Principle, please contact us at :

Email: dingliwyt@gmail.com Skype: cliff-qin