How should benchtop spray dryers handle sugary substances?

Desktop spray dryer treatment sugar content is relatively high (if juice, Chinese herbal medicine or natural product extract) because most of the polysaccharide disaccharides, melting point is relatively low, when heated, the sugar has melted, and the polysaccharide disaccharide itself is relatively easy to absorb moisture, so the ordinary spray dryer, it will be easy to appear sticky wall phenomenon, it is not easy to get good dry powder or particles
.

At this time, reduce the inlet air temperature and outlet air temperature of the spray dryer, and you can get a better experimental effect
.

The advantages of the desktop spray dryer are mainly concentrated in the following points: (1), the spray dryer drying speed is very rapid, the feed liquid after spraying, the surface area is very large
.

In high-temperature air flows, evaporation
occurs instantaneously.

(2) The temperature of the droplets during the drying process of the spray dryer is not high, and the product quality is better
.

Spray drying use of a very wide range of temperature (80-800 degrees), even if the use of high temperature hot air, its exhaust air temperature is still not very high, in the early stage of drying, the material temperature does not exceed the humidity of the surrounding hot air, drying product quality is better
.

For example, it is not easy to cause protein changes, vitamin loss, oxidation and other defects
.

The quality of heat-sensitive materials, organisms and drugs can basically be close to the standard of
drying under vacuum.

(3), spray dryer products have good dispersibility, fluidity and solubility Because the drying process is done in the air, the product can basically maintain a spherical shape similar to the droplet, with good dispersibility, fluidity and solubility
.

(4), spray dryer production process decomposition, operation control convenient spray drying is usually used to deal with wet content of 40%-60% of the solution, special materials even if the wet content of up to 90%, can also be not concentrated, the same can be dried into a powder product
.

Most products do not need to be shredded and screened after drying, reducing production procedures and simplifying production processes
.

The particle size, bulk density and moisture of the product, within a certain range, can be adjusted by changing the operating conditions, and the control management is very convenient
.

(5) Prevent the occurrence of public hazards and improve the production environment Because spray drying is carried out in a closed drying tower, which avoids the drying products flying in the workshop
.

For toxic gas and odorous materials, the production process of closed circulation system can be used to burn the toxic gas and odor to prevent air pollution and improve the production environment
.

(6), spray dryer is suitable for continuous large-scale production spray drying can adapt to the requirements of large-scale production in the industry, dried products through continuous discharge, in the post-treatment can be combined with cooler and wind transportation, the composition of continuous production operation line
.