The pressure spray dryer is a device that can complete drying and granulation at the same time. According to the process requirements, the pressure, flow rate, and nozzle size of the material liquid pump can be adjusted to obtain the required spherical particles in a certain size ratio. It is suitable for chemical, food, pharmaceutical, ceramics, spray granulation, fertilizer, spray cooling granulation and other industries.
The working process of the pressure spray dryer is that the feed liquid is input through the diaphragm pump at high pressure, and then sprays out the atomized liquid drops, and then flows down with the hot air. Most of the powder particles are collected by the tower bottom discharge port. The waste gas and its tiny powder are separated by the cyclone separator. The waste gas is discharged by the exhaust fan. The powder is collected by the pollinator at the lower end of the cyclone separator. The fan outlet can also be equipped with a secondary dust removal device, with a recovery rate of more than 96-98%. The materials of the tower body, pipeline, and separator in contact with the material are all made of SUS304. There is sufficient insulation layer between the interior of the tower and the outer shell, and the filling material is ultra-fine glass wool. The tower is equipped with observation doors, mirrors, light sources, and control instruments, which are controlled and displayed by an electrical control console.
The heat source device of pressure spray dryer adopts steam heating or electric heater, which has the advantages of convenient operation, fast start, compact structure, clean hot air, etc. In addition, there is a control and adjustment device for the electric heater installed in the electrical control cabinet, which enables stepless adjustment of the inlet temperature. For areas with power shortages, steam heating or coal-fired or oil fired hot air stoves can be used to partially or completely replace electric heating devices.