Spray dryers are one of the most common drying equipment in the modern processing of traditional Chinese medicine. In the previous article "Selection of Pharmaceutical Drying Equipment", we have talked about the choice of drying equipment for Chinese herbal medicine. The spray dryer has a good effect on the drying of materials with good fluidity, especially the heat-sensitive Chinese medicine liquid.
Factors Affecting the Treatment of Traditional Chinese Medicine Spray Dryer In the previous article “Influencing Factors of Chinese Medicine Extract Spray Dryerâ€, we talked about the factors affecting the quality of traditional Chinese medicine products. Today, Changzhou Yidu Drying Equipment Co., Ltd. briefly elaborates on this issue. .
1 The influence of the density of traditional Chinese medicine concentrate: We can draw the conclusion based on common sense and the working principle of spray dryer: the lower the density of Chinese medicine concentrate, the slower the drying speed and the less the yield; the opposite will cause the wall to stick and dry. Completely waiting for the situation. Therefore, it is necessary to set a reasonable density of traditional Chinese medicine concentrate for product quality requirements and process requirements. Changzhou Yidu Drying Equipment Co., Ltd. has obtained many tests and found that the density is better at about 1.10. Of course, it is necessary to treat differently according to Chinese medicines with different characteristics.
2 Temperature influence of the feed liquid: If the temperature of the concentrated liquid of the traditional Chinese medicine is raised during the drying process, the atomization speed can be accelerated, thereby achieving the effect of improving the drying efficiency. In this case, it is necessary to appropriately increase the feed rate of the feed liquid to ensure the stability of the entire drying.
3 The influence of the viscosity of the liquid: It is not difficult to find out the test data of the previous spray dryer: the Chinese medicine concentrate, the centrate, and the alcohol solution are prone to sticking. The conventional treatment method is to add an appropriate amount of materials such as soluble starch, white dextrin, etc., and the problem of sticking walls has been avoided.
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