New Drying method for Traditional Chinese Medicine Extract
low-temperature VBD drying machine, is a new drying equipment of continuous feed and discharge, through it, the material can be concentrated, dried and cooled under low temperature and high vacuum, thus it can mostly preserve the original color and nutrients of the raw material, and it is especially suitable for drying plant extract materials, such as Maca Extract/ActiveHerb/White Paeony Root Radix Paeoniae Alba Extract Powder/Pharmaceutical Tincture, Extract Of Wild Herbs, Medicinal Flowers/Chinese Herb Medicine Caulis Dendrobii Dendrobium Nobile Dendrobe Extract Powder/Parsley Herb/Dandelion Root Extract.
So what is the work principle of the low temperature dryer of Traditional Chinese medicine extract? Please refer to the explanation below.
The principle of traditional Chinese medicine extract low temperature dryer: under high vacuum condition, the liquid raw material is continuously distributed evenly on the conveyor belt , then the material on the belt is dried through the heating area, and then is cooled and embrittlement, and finally discharged. In the whole drying process, the material is treated in a high vacuum, low temperature state,also the drying temperature can be adjusted according to the characteristics of the material, thus can mostly preserve the material properties, and obtain high quality end products.
Under normal circumstances, the lower the drying temperature is, the better the product quality will be. Generally, the temperature below 80℃ can be called low temperature drying. While the actual evaporation temperature of conventional materials in the dryer is about 30-50℃, because the vacuum degree can be -0.098Mpa.
Minjie low-temperature drying machine, for example, the temperature control is through the temperature sensor to adjust the steam valve opening (Britain sent Isaac), hot water temperature control, connected to the steam pipe connected with our homemade heat exchanger, heat exchanger in cold water, steam goes in pipe, temperature control is done by steam valve opening. Generally, the temperature adjustment range is 20-150 ℃. When processing heat-sensitive materials , how to reduce the drying temperature through PLC, so as to complete the drying process at the fastest speed to ensure the productivity in the precondition that material nutrients in the extract of Traditional Chinese medicine are not destroyed.
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