The progress of vacuum dryer technology will reverse the current domestic export situation of drying equipment. China's vacuum dryer equipment export volume is less than 5% of the total, the export market scale has not yet been shaped, has been mainly exported to Southeast Asia.
In domestic dryer technology today, the drying process requires large amounts of thermal energy. In order to save energy, some high moisture content materials, suspensions or solutions containing solid materials are generally first mechanically dehydrated or heated to vaporize, and then dried in a desiccator. To get a dry solid. Here, Changzhou vacuum dryer manufacturers told everyone about the working principle of the vacuum dryer: During the drying process, the heat and mass (moisture content) transfer must be completed at the same time to ensure that the moisture partial pressure (concentration) of the surface moisture of the material is higher than the external. The moisture partial pressure of steam in the space ensures that the temperature of the heat source is higher than the temperature of the material.
The heat is transferred from the high temperature heat source to the wet material in various ways, vaporizes the surface of the material and disperses into the external space, so that the difference in moisture content occurs on the surface and inside of the material. The internal moisture spreads to the surface and vaporizes, so that the moisture content of the material is continuously reduced, and the overall drying of the material is gradually completed.
It is predicted that with the development of technology, the proportion of China's export vacuum dryer equipment in total output will increase from 5% to 10% in the next few years, and the export market will also expand to Europe and the United States. Gradually shorten the gap between the domestic large-scale vacuum dryer equipment manufacturing and the international level.
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