Modeling Study of a Microbial Spray-Drying Process Based on Real-Time Sampling

The process of microbial spray-drying has inherent defects such as short time, complexity, and non-visualization particle trajectory. However, there been a lack effective methods for real-time sampling, rehydration, non-destructive storage dried particles, well mathematical modeling the drying yeast particles based on sampling measurement data. Therefore, firstly, system was developed which completed spray-dried realized real reproduction changes in spray drying. laws that motion trajectory during are divided into first cycle region reflux were concluded, partition mechanism explored. Then, data law heat mass transfer, model porous media established to predict variation moisture content rehydration survival rate with time. Finally, tested by experiment, maximum errors between predicted value test Xmax1=0.027(d.b) Qvmax1=1.06%, respectively, both less than 5% proved correctness laid foundation study damage