Introduction of microwave vacuum drying equipment

Introduction of microwave vacuum drying equipment

Microwave vacuum drying equipment is a new type of microwave energy application equipment, which combines microwave energy technology with vacuum technology. It has a series of advantages of microwave and vacuum drying, and solves the problems of long cycle and low efficiency of conventional vacuum drying. In the drying process of general materials, the work efficiency is 4-10 times higher than that of traditional methods, Drying, sterilization and disinfection of medical products.

Principle of microwave vacuum dryer:

The working principle of microwave vacuum dryer is similar to that of microwave vacuum dehydrator. It is a drying technology based on the principle of sublimation. The dried material is quickly frozen at low temperature, and then in an appropriate vacuum environment, the frozen water molecules are directly sublimated into water vapor,

In the process of microwave drying, the temperature gradient, heat transfer and vapor pressure transfer direction are consistent, which greatly improves the moisture transfer conditions in the drying process. For the material as a whole, the inner layer is dried first, which overcomes the problem that the outer layer of the material is dried first and forms a hard shell, which hinders the inner moisture from moving out

Potential of microwave vacuum drying: 1

1. Microwave vacuum drying equipment is efficient and energy-saving. Traditional vacuum drying equipment uses steam heating, heating speed is slow, and requires a lot of energy; while microwave drying uses electromagnetic wave heating, without heat transfer medium, directly heating to the inside of the object, heating speed is fast, high efficiency, drying cycle is greatly shortened, and energy consumption is reduced

2. The mechanical heating of microwave vacuum drying is uniform. Microwave heating heats the material from inside to outside at the same time. The temperature difference between inside and outside of the material is very small, which will not cause the inconsistency of inside and outside heating in conventional heating, and the drying quality is greatly improved

3. Automatic continuous production of microwave vacuum drying equipment. Microwave power can be adjusted quickly without inertia, easy to control immediately

4. Microwave vacuum drying machine is small in size, convenient in installation and maintenance, saving space

5. Vacuum microwave drying equipment has the effect of disinfection and sterilization. This is the potential of all microwave machinery including microwave tea green killing machine. Vacuum drying food has low moisture content, safety and health, convenient storage and transportation, long shelf life and easy to eat

6. Microwave vacuum drying equipment can improve the quality of products. Microwave vacuum drying equipment can extend the shelf life of food, preserve the original flavor and nutrients of food, retain the physiological activity of raw materials, enhance the functionality of health food, and improve the added value of products