With the development of technology and the increasing richness of market demands, more and more drying equipment is appearing in our field of vision. However, the wide variety of drying equipment makes it difficult for consumers to choose. Today, we will help you distinguish drying equipment based on different heating methods.
According to different heating methods, we can mainly classify drying equipment into conduction, convection, dielectric, and radiation types.
1. Conduction Dryer: Also known as an indirect dryer, this equipment uses conduction to transfer heat from a heat source through a metal wall to the wet material. The generated steam can be removed by pressure reduction suction or low-temperature condenser surface condensation.
2. Convection Dryer: Also known as a direct dryer, this equipment uses a hot drying medium in direct contact with the wet material, then transfers heat through convection, and removes the generated steam.
3. Dielectric Dryer: Utilizes the effect of a high-frequency electric field to generate a thermal effect inside the wet material, thereby achieving the purpose of drying.
4. Radiation Dryer: Utilizes various radiators to emit electromagnetic waves within a certain wavelength range, which are selectively absorbed by the surface of the wet material and converted into heat, achieving the drying effect.