Rotary Kiln

The rotary kiln can adopt different heat sources such as natural gas, electricity and electromagnetic heating according to actual conditions. It delivers ideal treatment effects for the three wastes generated after production. The equipment consists of a preheating section, combustion section and cooling section.

Working Principle

The rotary kiln is a cylindrical body with an inclination of 3~3.5%. The rotation of the kiln shell agitates the materials inside the kiln to mix and contact with each other for reaction. A heating device at the kiln head supplies heat, which is transferred to materials via flame radiation, hot gas convection and kiln wall conduction. Materials travel forward inside the unit relying on the inclination and rotation of the kiln body.

Materials enter the cylinder from one end of the rotary kiln and are preheated first. Due to the inclination and slow rotation of the kiln shell, the materials perform a compound motion: tumbling along the circular tangential direction while moving axially from the higher end to the lower end. After being treated by combustion process inside the kiln, the materials enter the cooling section. Target products (if any) are discharged from the lower end of the cylinder. Hot air generated during heat exchange with materials flows into the tail gas absorption system at the kiln outlet and is finally discharged into the atmosphere through the chimney.