The spray drying equipment group adopts the working methods of open cycle, parallel flow and centrifugal atomization. First of all, the air in the drying medium is filtered through the dual filtration of the primary and intermediate air filters to ensure the air quality. Subsequently, according to the operating instructions, the blower draws the air in and heats it through the heater. After passing through the HEPA filter, the hot air enters the spray drying main tower evenly through the hot air distributor.
The liquid material is conveyed to the centrifugal nozzle with high speed rotation through a peristaltic pump according to the operation instructions. Under the action of centrifugal force, the liquid material is dispersed into small droplets. These droplets are in full contact with the hot air in the spray drying main tower and are heat exchanged along a specific path, resulting in rapid drying and transformation into a product.
The dried product is separated from the gas by means of a cyclone. The solid material is collected, while the gaseous medium is further filtered and discharged. The entire spray system is designed to be easy to clean, free of dead spots, and fully compliant with GMP (Good Manufacturing Practice) requirements.
The centrifugal spray drying equipment group is widely used in food, health products, medicine, chemical, ceramics and other industries, providing efficient and reliable drying solutions for these fields.
Key points of the work of the centrifugal spray drying equipment group
Contact of the thermals with the dropletsIn order to ensure adequate heat exchange, there must be a sufficient amount of hot air flowing into the spray drying chamber. At the same time, the direction and angle of the thermals are also key, ensuring sufficient contact between the thermals and the droplets, whether they are parallel, countercurrent, or mixed.
Atomization: The atomization system of the spray dryer is the core part. It must ensure that the size of the droplets is evenly distributed, which is essential to ensure the quality of the product. The size and distribution of the droplets directly affect the drying effect, particle size and uniformity of the product.
Design of pipe angles and cone angles: Proper duct angle and cone angle design is essential to ensure the smooth flow and full contact of the hot air flow with the droplets. The design of these angles not only affects the flow trajectory of the material, but is also directly related to the drying efficiency and product quality. Therefore, these factors must be fully considered when designing spray drying equipment to ensure that the performance of the equipment is at its best.