Nowadays, the role and use of microwave dryers in daily economic life and the economic benefits it brings in terms of speed, cheapness, technology and so on. For example: the application of microwave dryers in honeysuckle, seafood, tea, medicinal materials, agricultural and sideline products, beef, etc. So there are many microwave dryer manufacturers on the market now, which ones are more reliable?
1. Microwave Dryer Manufacturer
1. Shandong Baolong Industrial Co., Ltd. is a company involved in chemical industry, construction, food, metallurgy and other industries, integrating production, processing and sales. diversified enterprises.
2. Jinan Yuehong Supply Microwave Equipment Co., Ltd. has many engineers and senior technicians specializing in microwave energy application research. It is a large-scale professional manufacturer of microwave energy equipment with strong technical strength in China.
3. Shanghai Hongze Enterprise Development Co., Ltd. is a high-tech enterprise dedicated to the development, research and production of microwave energy application equipment.
2. Introduction to microwave dryer
Microwave dryer is a new drying method. When drying, microwave energy directly acts on the molecules of the medium and converts it into heat energy. Since the microwave has penetrating properties, it can heat the inside and outside of the medium at the same time without heat conduction, so the heating speed is very fast. For food with a moisture content of less than 30%, the drying speed can be shortened by several seconds. hundred times.
3. Working principle of microwave dryer
1. Microwave is a high-frequency wave that changes at a speed of 2.4 billion times per second, causing high-speed pendulum motion of water molecules. They The mutual friction generates great heat, which can easily dry materials.
2. After the object absorbs microwave energy and converts it into heat, the temperature of the object increases, and the water contained in the object evaporates, dehydrates, and dries; if the dehydration speed is properly controlled, the material can be dried when it is dried. The structure of the object is loose and puffed. During this process, the heating temperature can also be controlled to increase, so that the object is in a baking state.
4. Microwave dryer drying methods
General drying methods include mechanical method, chemical method and heating (freezing) method. These methods either have large equipment and high drying costs, or slow drying speeds and small processing volumes. With the development of science and technology, the emergence of new products such as biological products, new materials (multiphase composite materials, nanomaterials, smart materials and biomedical materials, etc.), advanced ceramics, new advanced foods and new pharmaceutical products, traditional drying Technology and dryers may not all be compatible.
5. Advantages of microwave dryer
1. Make full use of the penetration of microwave energy to make water molecules or polar molecules continuously switch between positive and negative poles in its magnetic field. As a result, the high-frequency friction between molecules heats up, allowing water to be quickly ejected from the material from the inside out, and the converted energy is most effectively retained.
2. Working Principle: Heat conduction mode, from the outside to the inside, polar molecules or water molecules inside the material undergo directional high-frequency vibration and rub against each other, causing the entire material to form a heating body. Microwaves directly act on water molecules or negative molecules, and the conduction loss is small.
3. The drying time is three days, a week, or longer, a few minutes or dozens of minutes.
4. The drying effect is difficult to achieve 100% drying, and it is difficult to control the temperature. It directly affects water molecules to 100% drying, and it is easy to control the temperature.
5. Drying uniformity: Heat conduction drying, uneven drying, microwave penetration, selective heating, uniform drying.
6. Quality and appearance are easy to change color, metamorphosis, and hardening, which can improve the quality of the material.
7. Environmental protection and hygiene. Coal, oil and natural gas are seriously polluted without any pollution or dust.
8. The working environment is labor-intensive, dusty, and the working environment is harsh.