Five tips for maintaining top pressure nozzle performance in your spray dryer
Is your spray-drying production rate lower than it should be? Does your spray-dried powder fail to consistently meet your product specs? These problems may indicate that your atomizer isn't operating as it should. Concentrating on one of the most common atomizers -- the pressure nozzle -- this article gives five tips for maintaining the nozzle's top performance and improving your spray dryer's operation.
In spray drying, a pressure nozzle is used to produce a powder with a high bulk density and narrow particle size distribution. The pressure nozzle atomizes the feed to the proper droplet size to produce the desired powder. But wear, high-temperature startup, and other problems can affect the nozzle's ability to function properly. Before discussing ways to keep your pressure nozzle in good shape, let's take a closer look at the pressure nozzle and how it works.