1.Principle of microwave drying
Microwave is a high-frequency electromagnetic wave with a frequency between 300MHz and 300GHz and a wavelength between 1 mm and 1 meter. When drying, the microwave acts on the raw material, the raw material and the water in the material will absorb the microwave, causing high-frequency vibration and friction between the molecules of the material, thereby generating heat and increasing the temperature of the material, thereby achieving the purpose of drying.
2.Characteristics of microwave drying
High drying efficiency. Microwave drying is different from traditional drying methods. Microwave drying does not require heat conduction, so the material heats up quickly and the drying efficiency is high;
Heats evenly. Regardless of the shape of the material, microwaves can uniformly generate heat energy on the surface and inside of the material at the same time, with good heating uniformity;
Strong penetrability. Microwaves have longer wavelengths than other electromagnetic waves used for radiant heating, such as infrared rays and far-infrared rays, so they have better penetration.
Has bactericidal effect. During the microwave drying process, due to thermal effects and biological effects, microorganisms in the materials will be killed, ensuring product safety and extending product storage time.
Energy saving. Since microwave drying does not require heat conduction, it consumes less heat and is more energy-saving than traditional drying methods;
Environmental friendly. Microwave drying uses electricity as energy source, does not produce harmful gases and waste water, and does not cause environmental pollution.
Jinan Kelid Machinery Co., Ltd has been committed to the R&D and manufacturing of industrial microwave machinery for over ten years. We can develop different solutions according to different project situations. If you have any needs, welcome to contact us for more details.
