What is the core principle of spray dryer equipment?
Release Date: 2015-06-22 Source: China Air Compressor Network View: 472
Core Tip: In the many drying equipment, spray drying equipment is one of the more widely used drying equipment, is the drying equipment to deal with solution, suspension or slurry materials. Can be dried directly from the liquid into a powder, which is the big advantage of spray drying equipment; low thermal efficiency, body
In many drying equipment, spray drying equipment is one of the more widely used drying equipment, is to deal with solutions, suspensions or slurry materials drying equipment. Can be dried directly from the liquid into powder, which is the spray drying equipment * big advantage; low thermal efficiency, large volume, low production capacity, high investment is its shortcomings. Spray drying because it can be directly from the solution or suspension system to obtain the composition of uniform powder products of special advantages, currently in the chemical industry, light industry, food and other industries have a wide range of applications, the chemical industry to the dyestuff industry is widely used *.
The working principle of spray drying equipment is: spray the material into droplets dispersed in the hot air, the material and the hot air is parallel flow, countercurrent or mixed flow way of contact with each other, so that the moisture evaporates quickly, to achieve the purpose of drying.
Using this spray drying equipment drying method, you can eliminate the concentration, filtration, crushing and other unit operations, you can get 30~500μm granular products. And the drying time is short, the general drying time is 5~30 s. Spray dryer is suitable for drying highly heat-sensitive materials and materials easy to be dispersed in the process of material concentration, and the product has good fluidity and quick solubility.