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Microwave Vacuum Dehydrator is mainly used to dehydrate and dry agricultural and sideline products, health products, food, herbs, fruits and vegetables, chemical raw materials, heat-sensitive wood . For chemical products of low temperature concentration, crystallization water removal from dry, enzymes, etc.; Vacuum extraction of Chinese herba; Suitable for scientific research institutions laboratory.
Microwave Vacuum Dehydrator has obvious advantages in extend the shelf life of food, preserved food’s original flavor and nutritional ingredients, keep the physiological activity of raw materials, the functional health food, improve the added value of agricultural and sideline products and so on. On the one hand,it can effectively keep the material shape, colour and lustre, nutritional composition and aroma is unchanged, and these features, for health care products production is particularly important;On the orther hand,it can greatly save energy.
Under the condition of vacuum, low evaporation temperature of the water, realized the low temperature drying, intact to keep the processing material is original color, aroma, taste and nutrition, avoid the active ingredient of the oxidation in the material, products after good water; Microwaves penetrate to material internal, slewing system driver material do rotary motion, make the material is heated more evenly, dry faster, its running cost is much lower than freeze-drying and infrared drying, saving energy and reducing consumption, health, environmental protection; Make full use of microwave heating material inside and outside temperature difference is small, both the advantage of the characteristics of the vacuum drying, and solves the heat conduction problems in a vacuum, greatly improving the drying efficiency and product quality. According to data shows, at home and abroad to material heating by microwave equipment, its speed and efficiency is 4 ~ 20 times as high as that of the conventional heating method.
Microwave Vacuum Dryer Design :
1.Using four magnetron, high efficiency, strong ability to resist load, long life (7000 hours). using the fan for cooling protection device,in order to better protect the stability of the magnetron and service life.
2.Use a special transformer with overheating protection system .
3.Adopt the ultra-high voltage capacitor, the specifications of 1.05 uf 2500 v, more stable and durable than the conventional 1.0 uf 2300 v.
4.Using high-voltage silicon stack, its reverse repetitive peak voltage of 12 kv, positive rectifier current is 450 ma, and checked by practice, durable, completely suitable for the microwave equipment required.
5.Use the circular heating cavity (304 # stainless steel plate, thickness is about 4mm), ensure that it can withstand pressure, long-term use of deformation, conform to the requirements of the GMP pharmaceutical industry and food industry “QS” requirements. Elaborate design phase complementary form microwave energy supply, ensure the normal operation of magnetron completely, the output matching superior performance, prolong service life.
6. According to characteristics of material drying, microwave heater in strength distribution, used on the power density distribution of the temperature of the material as required in order to facilitate random set, and has a corresponding thermal process, make the material drying out evenly, not gelatinization.
7.Using heating system.Well-designed phase form complementary feed mouth, after a large number of theory and practice and design of the microwave waveguide, so as to ensure the normal operation of magnetron completely, the output matching performance is superior, the uniform heated material more thoroughly and lengthen the service life of the microwave tube and transformer core, such as the original.
8.Use stainless steel material, beautiful and generous.
9.In the middle of the heating chamber straight large opening door, choke devices, microwave equipment to ensure long-term use does not leak, ensure use safety, the operation is convenient.
10.The cavity body adopts horizontal rotating tray technology, make dry more quickly and evenly. Wheel diameter is about 300mm.
11.The vacuum pump and the platoon is wet chamber link at the bottom of the chamber and the upper.
12.Microwave generator and the power part is equipped with cooling device, ensure that all electrical components without damaging long-term work, not aging.
