Spray drying is an efficient drying method due to simultaneous mass and heat transfer. Spray dryers are used in chemical and food processing to manufacture dried eggs, milk powder, animal feed, cake flour, citrus juice, coffee, corn syrup, cream, creamer, fish concentrate, infant formula, potatoes, shortening, starch Derivatives, tea, tomato puree, yeast and yogurt. These substances are homogeneous in nature, and the powder is usually spherical in shape, about 10-140 microns.
The spray drying process begins with a preheated solution that is pumped to an atomizer. Atomizers increase the surface area of a solution by creating a fine mist. The mist is then sprayed into an air chamber at a temperature above the evaporation temperature of the solution solvent. When the mist contacts the hot air, the solvent (usually water) evaporates. The solvent evaporation rate depends on the solution flow rate, solution temperature, air flow rate, air temperature, droplet size, and total solids concentration. The evaporated solvent and dried particles are then removed from the main chamber. Cyclone separators separate entrained particles from moist air. The dried particles are forced into the bottom of the cyclone, and the air is exhausted to the atmosphere or into a scrubber.
Regarding the working principle of the spray dryer, this is the summary for everyone. If you need to choose a spray dryer, please contact us, we will work with you to create a win-win situation with better products and services!
https://www.stardrying.com/
