An alumina rotary kiln monitoring system based on infrared ray scanning

In the process of using the sintering technique of rotary kiln to produce alumina, the shape of kiln crust is complex and the temperature measurement is difficult. In order to solve these two problems, an infrared ray scanning and monitoring system of rotary kiln has been developed, which uses infrared temperature measurement and digital filter compensation. From the size and rate of change of the Euclidean distance of the temperature characteristic vector between standard and measured specimen in pattern recognition, the size and rate of change of the kiln surface temperature can be measured and the working condition of alumina rotary kiln can be forecast. The system improves the operation of kiln effectively, enhances the operation rate of facilities and reduces the cost of production.