Investigation and analysis of the factors on evaporation rate under vacuum drying process / 中成药

ABSTRACT

AIM: To investigate law of vacuum drying process and provide basic technical supports for drying process and design of drying machine. METHODS: A batch-drying experiment system was used to continuously record the mass and temperature of the drying sample,then the key effective factors and characteristics of different phase of drying process were obtained based on the analysis of the recorded experimental data. RESULTS: The influence of process parameters on evaporation rate varied in different period of drying process. CONCLUSION: In order to improve the efficiency of the integrated drying process,it's necessary to apply appropriate technical methods according to the characteristics of the process.