SonoDry 1000 spray drying system

The SonoDry 1000 spray drying system incorporates the manufacturer’s nonclogging ultrasonic spray nozzles, and is suitable for aqueous and solvent feeds. It allows drop sizes to be customized by varying the frequency of the nozzle’s ultrasonic vibration. The system has a fully integrated hot plate and magnetic stirrer, as well as an ultrasonic atomizer and an air-spray two-fluid nozzle. Its control system features a built-in programmable logic controller (PLC), an RS 232/485 port with liquid-crystal graphic display, and an input/ monitoring control panel with audio-visual indicators and two-way communication between machine and computer. Data-logging functions include inlet/outlet temperature, hot air flowrate and feed pump flowrate, and recipe storage is virtually unlimited. Its optional Teflon membrane scrubber can achieve yields as high as 95% for fine-powder recovery. Optional features include a nitrogen inerting loop for drying organic solvents, dual liquid feed (for both the ultrasonic nozzle and the air-spray nozzle), a congealing nozzle for freeze drying, and a countercurrent nozzle that facilitates larger-diameter particles.