Comfort pressure sprayer drying is mainly determined by the working principle of the pressure atomizer, so that this drying system has its own characteristics. Because the product obtained by pressure spray drying is in the form of particles, both the droplets and the particle size of the product are larger than the other two types, resulting in a longer drying time of the droplets. In addition, the atomization angle of the spray is also small, generally between 20° and 70°, so the shape of the dryer is also mainly in the shape of a high tower, so that the droplets can have sufficient residence time. A certain pressure is applied to the feed liquid and atomized by the atomizer, so there must be a high-pressure pump in the system. In addition, because the aperture of the atomizer is very small, in order to prevent the debris from clogging the atomizer channel, it must be filtered before the liquid enters the high-pressure pump. Use pressure spray drying to obtain more granular products.