What are the benefits of tunnel microwave sterilization equipment?

Microwave drying sterilization has obvious advantages over traditional sterilization and drying. Tunnel microwave sterilization equipment has unique advantages.

1, short time, fast

Tunnel type microwave sterilization equipment sterilizes heat from the surface of the object to the inside through heat conduction, convection or radiation. It often takes a long time for the inside of the object to reach the desired dryness and sterilization temperature. The medium consists of polar molecules and non-polar molecules. Under the action of electromagnetic fields, these polar molecules are shifted from the original random distribution state to the polarity according to the polarity of the electric field. Under the action of high-frequency electromagnetic fields, these orientations are constantly changing according to the frequency of the alternating electromagnetic, which causes the molecules to move and rub each other to generate heat. At this time, the field energy of the alternating electric field is converted into thermal energy in the medium, so that the temperature of the medium is continuously increased, so the microwave heating is the dielectric material itself depleting the electric field energy and generating heat. Therefore, the microwave heating treatment time is greatly shortened, and under a certain power density intensity, generally only a few tens of seconds and a few minutes can achieve satisfactory results.

2, low temperature drying sterilization to maintain nutrients

The tunnel type microwave sterilization equipment has the double effect of rapid heating and non-thermal effect of thermal effect, and can obtain the required drying and sterilizing effect at a relatively low temperature and a short time compared with conventional heat drying and sterilization. The general sterilization temperature is 65-70. C, 75-80. C or 103-121. In C, the time is 3-8 minutes, and it can retain more food nutrients and color, fragrance, taste, shape and other flavors. For example, the vitamin C retained by conventional heat treatment of vegetables is 46-50%. In contrast, microwave treatment can achieve 60-90% of vitamin C retention, and conventional heating method has a vitamin A retention value of 58%. Microwave heating can reach 84%.

3. Saving energy

The microwave energy conversion efficiency is high, generally above 70%. The microwave directly treats the food, and the heating box itself is not heated, so there is no additional heat energy loss, so energy saving, generally saving 30-50%.

4, even and thorough

Conventional thermal drying and sterilization are started from the surface of the material and then transferred to the inside of the material by heat conduction. There is a temperature difference between the inside and outside of the material, and the internal and external drying and sterilization effects are poor. In order to maintain the flavor and shorten the processing time, the internal temperature is not sufficient to affect the drying and sterilization effects. This phenomenon can be improved by increasing the processing temperature, however, this causes the color, fragrance, taste, shape and the like of the surface of the article to be degraded. The tunnel type microwave sterilization equipment has the penetrating performance, and the surface and the interior simultaneously act to ensure that the internal and external temperatures together achieve the required value, so the drying and sterilization are uniform and thorough.

5, easy to control, easy to achieve automated production

The microwave food drying and sterilizing treatment equipment is simple in operation, easy to control, has no thermal inertia, can be processed according to different food process specifications, reduces production operators, and reduces production costs.

6, simple equipment, advanced technology

Compared with conventional sterilization, tunnel microwave sterilization equipment does not require boilers, pipeline systems, coal yards and transportation vehicles. As long as it has basic water and electricity conditions, there are no special requirements for the plant, and the investment is small and quick.

7, improve working conditions, save floor space

Microwave equipment has no high temperature, no heat, no heat itself, no heat radiation. It can greatly improve working conditions, and the equipment is compact in structure and saves plant area.