The rotary kiln is the main equipment of both dry and wet process cement clinker production lines. Rotary kilns are widely used in industries such as metallurgy, chemical engineering, construction refractory materials, and environmental protection. This rotary kiln is composed of components such as the kiln shell, support device, riding ring support device, driving device, movable kiln head, kiln tail sealing device, and coal injection pipe device. The kiln body is inclined at a certain angle to the horizontal, and the entire kiln is supported by tire rollers, with riding ring devices controlling the vertical movement of the kiln. In addition to the main drive, the drive system is equipped with an auxiliary drive that allows the kiln to rotate even when the main power supply is interrupted, preventing the kiln from bending or deforming. The kiln head and kiln tail sealing devices use advanced technology to ensure reliable sealing.