A rotary kiln is a device that supplies tremendous amounts of heat in order to change the chemical composition of an object. It is made up of a strong reinforced steel outer shell that is coated with a heat-resistant inner lining, support rollers and a drive gear to keep the contents in a continuous rotating motion and internal heat exchangers capable of producing temperatures well over 2732 degrees Fahrenheit (1500 degrees Celsius).
Rotary kilns are used to heat solids to the point where a required chemical reaction(s) takes place. The rotary kiln is basically a rotating inclined cylinder. Solids retention time in the kiln is an important design factor and is set by proper selection of the diameter, length, speed, slope and internals design. There are two basic types of rotary kilns; direct fired and indirect fired.
Cement rotary kiln is the best choice to deal with hazardous waste ,which recently has been widely used in various hazardous waste disposal center. Over the years we have been committed to the dry and wet types rotary kiln research and development, transformation, and in this process, summed up a lot of rotary kiln knowledge. Cement making production line obtains good environmental protection effect in the incineration of hazardous waste, energy consumption accounts for 40% of cement production cost,