Rake vacuum dryer works: dry materials Founder join the middle from the housing, stirring constantly positive and negative rotation of the rake teeth, vacuum drying equipment quality, material axially back and forth, in contact with the housing wall surface continuously Updated by indirect heating steam, stir evenly rake teeth, grinding rods grinding, vacuum drying equipment high-end, so that the material surface moisture more favorable discharge, the water vaporized by the dry dust, wet dust collector, the condenser , from vacuum vent exit. Vacuum freeze-drying water, there are three state of aggregation, namely liquid, solid and vapor. With reduced pressure, vacuum drying equipment effectiveness, little change in the freezing point, while more and more low boiling point side, closer and closer to the freezing point. When the pressure drops below a certain value, the boiling point and freezing point that is the combination of vacuum drying equipment, the solid ice directly without passing through a liquid into vapor. Triple point of water pressure 610.5Pa, triple point temperature of 0.0098 ℃, when the pressure is below the triple point pressure, the solid ice can absorb heat directly into steam vapor lyophilized principle on this. Vacuum drying equipment advantages _ and being dried (certified) _ vacuum drying equipment from Changzhou City Drying Equipment Co., Ltd. and positive. Changzhou City Drying Equipment Co., and positive (www.hzdrying.com) is a leader in Changzhou, Jiangsu, drying equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. And being dried in leadership with the staff warmly welcome all inquiries negotiations to create a positive drying and a better future.