SPP use a rotary dryer to dry crushed oil shale particles. This animation shows how small shale particles are heated rapidly and entrained with gas flow in the dryer.
If the animation does not load or is of poor quality, try running this compiled Smacker file: d2.exe (0.5MB).
Note that this is an executable file, and should be suitable for all PCs running Win95 or later. For more information about Smacker and its compiled executables, please follow this link.
CFD