Do you know the classification knowledge of drying equipment by heating method? Let's follow the editor of Cheapest Cold Air Drying Equipment for a brief understanding!
According to the heating method, dryers are divided into convection, conduction, radiation, dielectric and other types. Convective dryers, also known as direct dryers, use hot drying media to directly contact wet materials, transfer heat by convection, and take away the generated steam; conduction dryers, also known as indirect dryers, use conduction The heat source transfers heat to the wet material through the metal partition, and the generated moisture vapor can be removed by vacuum suction, a small amount of purge gas, or condensation on the surface of a separate low-temperature condenser. This type of dryer does not use drying medium, has high thermal efficiency, and the product is not polluted, but the drying capacity is limited by the heat transfer area of ​​the metal wall, the structure is also more complex, and it is often operated under vacuum; the radiant dryer uses various radiation The device emits electromagnetic waves in a certain wavelength range, which are selectively absorbed by the surface of the wet material and then converted into heat for drying.
The above is the editor of Cheapest Cold Air Drying Equipment: a brief introduction to the classification knowledge of drying equipment according to heating methods.