Vacuum drum dryers vacuum drum dryers will roll sealed in a vacuum chamber, vacuum drum dryer vacuum dryer Which is good, feeding, unloading and scraper so must be controlled from the drying outdoors, so the drying costly , it can only be used for very heat sensitive dry food, fruit juice, yeast, baby food. There are three kinds of vacuum freeze-drying water-gathering Which vacuum dryer professional status, namely liquid, solid and vapor. With the decrease in pressure, little change in the freezing point, where to sell vacuum dryer, and more low boiling point side, getting closer and closer to freezing point. When the pressure drops to a certain value, a vacuum dryer, a boiling point that is combined with the freezing point, without passing through a liquid-solid ice directly into the vapor state. Triple point of water pressure 610.5Pa, triple point temperature of 0.0098 ℃, when the pressure is below the triple point pressure, solid ice can absorb heat directly into steam vapor state, freeze-drying principle in this. Custom vacuum dryer, vacuum dryer, and drying equipment performance guarantees are provided by Changzhou and now Drying Equipment Co., Ltd .. Changzhou and now Drying Equipment Co., Ltd. (www.hzdrying.com) strong, credible, in Changzhou, Jiangsu drying equipment industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement and innovative ideas are dry and will lead you hand into the brilliant, for a better future!