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Microwave is an electromagnetic wave that produces high-frequency electromagnetic fields. The heated medium material is composed of polar molecules and non-polar molecules. The water molecules in the material are polar molecules. Under the action of electromagnetic field, the polar molecules are shifted from the original random distribution state to the polarity according to the polarity of the electric field. The movement of the molecules and mutual friction generate energy, which makes the temperature of the material continuously increase. Producing a series of physicochemical processes for heating and puffing to achieve the purpose of heat drying and drying.
Microwave drying dewatering equipment is mainly used for quick-drying powder, granule, sheet, strip, tubular material such as food (fruits, vegetables, grains, Preserved fruit, seafood, spices, tea, nutrition powder etc), wood (logs, sawdust, wood products, wood floors, large furniture), paper products (cardboard, paper tubes, corrugated paper, etc.), chemicals, herbs, insects, pet feed, etc.