As we all know, rotary kiln is a calcining equipment commonly used in the industrial industry to process cement and lime. The temperature in the kiln is very high and the operation time is relatively long. Many people often only care about the wear of parts such as supporting wheels and wheel belts, but ignore another part worthy of attention-kiln skin!

The kiln skin occupies an important position in the entire equipment. Although it has a rough surface, it can reduce the flow rate of powder and prolong the reaction time of materials in the kiln. The specific functions are as follows:

1. The kiln skin of the rotary kiln can effectively reduce the heat loss of the kiln shell of the rotary kiln equipment, play a good role in storing heat energy, and greatly improve the thermal efficiency of the lime kiln equipment.

2. During calcination, the kiln skin attached to the refractory bricks can act as a heat transfer medium. Because the kiln skin is in contact with high-temperature air, it can absorb a large amount of heat in the air by radiation and convection, and then form full contact with the material at the bottom, and quickly transfer the heat to the raw material being calcined, thereby promoting the formation of a high-temperature environment in the rotary kiln equipment, and the calcination effect and speed of the tower high material in the kiln.

3. Under the long-term high-temperature calcination, the cylinder of the rotary kiln will inevitably be damaged to varying degrees. With the extension of material calcination time and the continuous increase in equipment processing capacity, the service life of the rotary kiln will gradually shorten. The kiln skin can play a good protective role for the refractory bricks, reduce the burning of the refractory bricks by high temperature, and thus extend the service life of the refractory bricks.