Metso Minerals indirect fired rotary kiln
Metso indirect fired rotary kiln
In Metso's indirect fired rotary kiln the combustion or other form of heating takes place on the outside of the rotary kiln shell. This way, the material being processed does not come into contact with the combustion gases.
This can be important to the product quality or to keeping the product from reacting to the gases.
Another advantage is that the amount of gases coming from the kiln that need to go through an emission control system is very small. Indirect rotary kilns can also be used as coolers.