1 The Rotary Kiln Evolution and Phenomenon 1 The Rotary Kiln Evolution 1 Comparison of the Rotary Kiln with Other Contactors 4 Types of Rotary Kilns 7 Wet Kilns 9 Long Dry Kilns 9 Short Dry Kilns 10 Coolers and Dryers 10 Indirect Fired Kilns 12 2 Basic Description of Rotary Kiln Operation 15 Bed ...