Microwave vacuum Dryer（MVD）
——Low temperature and vacuum drying
01 What is microwave vacuum dryer machine?
Microwave vacuum dryer is a special microwave dryer that combines microwave drying and vacuum drying technology. It has the advantages of microwave drying and vacuum drying and overcomes the shortcomings of the long cycles and low efficiency of conventional vacuum drying. Also with high drying capacity, good quality, and low processing cost.
The microwave vacuum dryer machine is a high-tech product integrating electronics, vacuum, mechanics, thermodynamics, and program control. It is a very good technology application and new process developed on the basis of in-depth research on the physical changes of substances in the drying process, internal and external heat and mass exchange, and the process of moisture migration under vacuum conditions.
02 What is microwave vacuum drying ?
Microwave vacuum drying is a special dehydration process that uses microwave radiation to generate heat in the absolute pressure range from above the triple point of water to less than atmospheric pressure (0.61–101.33 kPa).The product can be quickly dried at a lower temperature.
03 What products can be dried by industrial microwave vacuum dryer?
Microwave vacuum dryer can be used in drying different kinds of food,sea food,pharmaceutical intermediate extracts,liquid extracts, fruits,vegetables,meat, leaves,pharmaceutical, chemical products, and so on.
Whether it is liquid, solid, powder, or granular, even lumps all can be dried well.
04 What is the advantage of an industrial microwave vacuum dryer?
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■ High drying efficiency.
■ Evenly and quickly dry: As compared with conventional drying methods, which mean microwave drying from the outside to the inside by heat conduction, microwave heating shows volume heating feature, microwave will heat the water molecules inside and outside of product at the same time. The water evaporating inside the product is emitted through the porous structure, resulting in quick drying.
■ Easy to use: Almost all operations can be done on the touch screen operation interface, and its functions can be known according to the menu, which is very easy to use.
■ The machine runs stably and reliably: High-quality accessories, precise manufacturing, and strict QC testing are the quality assurance we are proud of.
■ Used widely: The industrial microwave vacuum dryer is suitable for some materials that are heat sensitive and cannot be dried at atmospheric pressure. It is necessary to reduce the pressure to reduce the boiling point and effect drying at a reduced temperature. Such as fruits juices, fruits slices, beverages, drugs, herb extracts, sticky liquid, organic extract solution, and pharmaceutical pellets.
05 What are the advantages of vacuum drying compared to non-vacuum drying?
■ Low drying temperatures to protect product
■ Minimal loss of flavors
■ High yield, very small product loss
■ No product oxidation
■ No mechanical stress to the product
■ Controllable drying process
■ Application multifunctional, can be designed for solid, powder, liquid
■ Possibility to recover solvents
06 How much drying time does a microwave vacuum dryer reduce ?
We can find the answer from the research of M. N. Berteli et al. Under the same conditions, the moisture content is from 25% to 3% :
■ for the microwave vacuum drying process, time required = 9 minutes;
■ for the combined microwave and hot air process, time required = 30 minutes;
■ for the convective hot air process, time required = 205 minutes.
Usually microwave vacuum drying only needs 1/3 to 1/10 of the time of conventional drying methods.
07 What is the power of your microwave vacuum dryer machine ? How should I choose?
The power of the machine will be calculated by the moisture content, capacity, and drying conditions of the product. Our current machine models cover from laboratory to industrial scale, ranging from 5kW to 100kW.
We can design and manufacture machines with larger vacuum chambers according to your special requirements.
08 What is the microwave vacuum dryer price
The microwave vacuum dryer price is based on its configuration. We will provide you with the corresponding configuration when quoting, because in most cases the machine has to be designed according to your product, capacity and drying conditions. We will give you a reasonable price under the premise of meeting the production requirements.
09 Can you show me successful cases In applications with your microwave vacuum dryer machine ?
Fruits And Vegetable Drying Wtih Microwave Vacuum Dryer (MVD)
Talin Tech technology delivers a novel variable frequency microwave-assisted vacuum drying system by combining the benefits of both microwave and vacuum drying methods. Microwave vacuum drying (WVD) will reduce the drying time of the conventional vacuum drying process by 30% to 90%, resulting in lower energy and running costs, increased product throughput, preservation of the nutritional value, and improve the drying quality of heat-sensitive substances compared to conventional drying methods.
Chinese Traditional Medicine Extract Drying With Industrial Microwave Vacuum Dryer
Microwave heating is a kind of radiant heating. It is the direct interaction between microwaves and products, so that the inside and outside are heated at the same time, the heat is transferred through convection or conduction, so the heating speed is quick, the drying efficiency is high, and the drying quality is good.
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