60KW microwave drying equipment for dryed flounder fish
1. What is Microwave?
Microwaves are a form of electromagnetic energy with frequencies between 300 MHz and 300 GHz, generated by magnetrons under the combined force of an electric and a magnetic field perpendicular to each other.
2,Microwave drying principle:
Microwave drying is a new type of drying method. When drying, microwave converted into heat energy that can be applied directly to medium, because the microwave has penetrating performance inside and outside the media, heating at the same time, do not need to heat conduction, so very fast heating, the water content below 30% of food, can shorten the drying speed hundreds of times. Regardless of any shape objects, because the object of dielectric heating at the same time, both inside and outside material of inside and outside temperature difference is small, uniform heating, the drying quality greatly improved.
Compare of the normal way drying and the microwave drying | ||
Drying method | Normal drying | Microwave drying |
Principle | Heat exchange | Material itself produce heat |
Energy saving | No energy saving | Energy saving 30% |
Energy source | Coal/steam/wood/infrared | Electric |
Drying speed | Slow | 3-5mins |
Material drying situation | Outer to inner drying | Inner to outer drying |
Sterilize effect | No | Yes |
After drying moisture level | 9% | 3%, even lower. |
