The document discusses infrared monitoring of cement kiln shells. It notes that the rotary kiln is a critical step in the cement manufacturing process, so understanding the condition of the refractory material coating the kiln is important to extend its life and prevent failures. Since the inside temperature cannot be measured, looking at the outer surface is the only way to determine the refractory condition. The document introduces the CS400 Kiln Shell Imaging System by Fluke Process Instruments, which uses continuous infrared monitoring to help detect hot spots, reduce setup times, avoid damage, and optimize the kiln's life in harsh cement manufacturing environments.

1. Cement Processing
Cement Processing - Infrared Monitoring of Kiln Shells
For nearly every cement manufacturing process, one of the most
critical steps take place within the rotary kiln. Because of this, it is
imperative that users understand the condition of the refractory
material coating the kiln to extend its operating life, as well as to
prevent any disastrous failures.

2. Since users have no way to measure temperatures from inside of
the kiln, looking at the outer surface is the only way to determine
the refractory condition of the kiln. To aid operators in this task,
Fluke Process Instruments has developed a continuous infrared
process monitoring solution – the CS400 Kiln Shell Imaging
System – which is designed to help users continuously detect hot
spots, reduce set up times, avoid costly damage, optimize the
kiln’s operational life and more, even in the harshest cement
manufacturing environments.