The microwave vacuum dryer is a new type of high-efficiency drying equipment for pharmaceutical machinery engineering. Because there are a few, it replaces many drying products in drying equipment. Microwave vacuum drying equipment, no heat transfer medium, fast heating. Because the microwave vacuum drying equipment is electromagnetic heating principle, directly heated to the inside of the object, 1 KW of microwave energy can be heated to 80 °C in room temperature water within 3-5 minutes, the heating rate is generally beyond the reach of drying equipment, and Conventional drying technology improves ergonomics by more than four times. Microwave vacuum drying equipment, heating evenly. This is a characteristic of microwave heating. It heats the material from the inside to the outside at the same time, so that there will be no puffing effect. Easy to control, continuous automated production. The microwave power can be controlled instantly and the temperature can be adjusted between 40°C and 80°C. The products processed by microwave vacuum equipment have a long shelf life, which can preserve the original flavor and nutrient composition of food, preserve the physiological activity of raw materials, enhance the functionality of health food, and increase the added value of agricultural products. News link: Vacuum type microwave dryer is mainly used for dehydration drying of high value-added and heat-sensitive agricultural and sideline products, health products, foods, medicinal materials, fruits and vegetables, chemical raw materials, etc.; for low-temperature concentration of chemical products, removal of crystal water, enzymes Drying of preparations; vacuum extraction of Chinese herbs; suitable for laboratories of scientific research institutes. It is well known that the boiling point of water is directly related to atmospheric pressure. The lower the atmospheric pressure, the lower the boiling point of water. For example, at an atmospheric pressure (101.3 kpa), the boiling point of water is 100 degrees Celsius, and at -0.073 MPA, the boiling point of water is 45 degrees Celsius. At -0.08 MPA, the boiling point of water is 35 degrees Celsius. Therefore, under vacuum conditions, the internal moisture of the material evaporates at a low temperature. To achieve the purpose of low temperature drying.
Pre- treatment:
1. Steel material : oil disposing and rust removing , phosphorization treatment
2. Aluminum : derosination and chromating treatment
* Test the pre- treatment in every two hours , testing methods should in comply with the drug supplier or according to user manual of our pre- treatment
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Vacuum microwave dryer is widely used in the pharmaceutical industry