Our photo this week shows a batch rotary kiln test conducted in the FEECO Innovation Center. The batch kiln is used to simulate the conditions of a continuous, commercial rotary kiln.
The kiln is lined with a lightweight castable refractory and heated with a propane burner. It can work with temperatures up to 3000ºF (1650ºC) with the firing maintained from highly oxidizing to sub-stoichiometric. A combustion chamber can also be used to avoid direct flame impingement onto the solids.
Thermocouples record the material and gas temperatures throughout the testing process, and solids are often removed at regular intervals for analysis.
FEECO’s engineers use the data gathered from batch kiln tests to define the process parameters for continuous pilot plant test work, and ultimately, the design of a commercial rotary kiln.
To learn more about batch kiln testing at FEECO, contact us today!