Spray drying equipment is a common drying equipment, which is widely used in food, chemical, pharmaceutical and other industries. Spray drying equipment commonly used spray methods include compressed air spray, pressure spray spray and suspension spray.

Common spray methods for spray drying equipment

First, compressed air spray is a common spray method. It uses compressed air to spray liquid samples through a nozzle and form small droplets. The droplets evaporate in the air and become solid particles, thus completing the drying process. This spray method is suitable for liquid samples with high viscosity. The spray angle and pressure can be adjusted according to needs to achieve drying effects of different particle sizes. Secondly, pressure atomization spray is another commonly used spray method. In this method, the liquid sample is sent to the spray chamber by the high-pressure spray pump, and the liquid sample is atomized into small droplets by the atomizer. These droplets quickly dry in an environment of high temperature and wind speed, forming powdery particles. Pressure atomization spray is usually used when a large number of materials need to be dried in the production process, because it can achieve the drying effect of high output and small particle size. Finally, suspended spray is a special spray method. It solidifies liquid droplets into solid particles in an instant by spraying the liquid sample into a low-temperature environment at high speed. This spray method is suitable for drying heat sensitive materials, because it can quickly convert liquid into solid, avoiding the adverse effects of high temperature on materials. Suspended spray usually requires more complex equipment and operation control, but it can maintain the original characteristics and particle morphology of materials. Spray drying equipment commonly used spray methods are diverse and flexible, and suitable methods can be selected according to different material characteristics and drying requirements. Whether it is compressed air spray, pressure atomized spray or suspended spray, it can achieve efficient, rapid and uniform drying effect. With the development of science and technology, the spray method of spray drying equipment is also constantly innovating and improving, providing solutions for drying processes in all walks of life.