What is the principle of veneer dryer drying？

        The veneer dryer is required to transfer heat and quality together during the drying process to ensure that the wet vapor partial pressure (concentration) 

on the surface of the material is higher than the wet vapor partial pressure in the external space, and that the heat source temperature is higher than the material temperature.

     Heat is transferred from the high-temperature heat source to the wet material in various ways, so that the wet part of the surface of the material vaporizes 

and escapes to the external space, resulting in a difference in the wet content of the surface and the interior of the material. The internal wet part is dispersed to 

the surface and vaporized, so that the wet content of the material continues to decrease, and the overall drying of the material is gradually completed.