Indirect rotary steam pipe dryer
Steam pipes heater are installed in symmetric and centrally aligned form in two or three rows and the dryer rotates with the cylinder. This steam pipes might be simple pipes that the steam is condensed while heating in them and this condensed water is discharged through the steam trap. The steam trap has ability to allow the
liquid to pass through but prevents the gas phase from escaping. The air coming out of the dryers is almost near saturated. Because the amount of air required in this dryer is usually much lesser than the amount of air consumed in direct typical dryers.
Indirect rotary steam pipe dryer
The hot steam enters the pipes and leaves it out after condensation. The dried material is removed from holes in the shell. These holes have walls that cause the depth of the bed inside the shell to always remain sufficient. These dryers are particularly suitable for drying the material, which need a long drying time and they can be kept at relatively long time at a constant temperature.