ROTARY KILN PRODUCT QUALITY FORECASTING BASED ON FLAME IMAGING

For most applications, the rotary kiln product quality control problem is to apply a certain temperature profile to the solids within the kiln through direct contact with a hot flue gas produced by combustion. Since it is very difficult to measure the solids temperature profile in the kiln, due to the harsh environment and the rotating motion of the shell, quality control is often achieved in practice by controlling the solids discharge temperature close to some target value. The rational behind that is twofold: 1) the solids discharge temperature is often highly correlated to