Automation of industrial spray dryer

In this article, we illustrate some basic principles of spray drying which is, by definition, the transformation of feed from the fluid state into a d ried particulate form by spraying the feed into a hot drying medium. It is a one step, continuous particle-processing operation involving drying. The aim of a spray-dryer control system is the maintenance of desired dried product quality, irrespective of what disturbances occur within the drying operation and variations of feed supply. With our counter-current spray dr yer (diameter 5.5 m, height 20 m), we produce zeolite (granulate form). It is manually controlled with fully automated equipment for continuous measur ement of process parameters. With the implementation of Fuzzy control,(1-3) we would like to increase pr ocess stability and, above all, reach constant product quality.