Wood Drying Method(一)
There are many ways to dry wood, how many do you know? There are conventional drying, high temperature drying, dehumidification drying and so on.
Conventional drying is a method in which atmospheric pressure humid air is used as the drying medium, steam, hot water, furnace gas or hot oil is used as the heating medium, and the air is indirectly heated, and the air heats the wood by convection to achieve the purpose of drying. In conventional drying, most of the drying chambers use steam as the heat medium, which is generally referred to as steam drying.
The difference between high temperature drying and conventional drying is that the drying medium temperature is higher. The drying medium can be moist air or superheated steam. The advantages of high temperature drying are fast drying speed, good dimensional stability, and short cycle, but high temperature drying is prone to drying defects, darkening of material color, surface hardening, and difficult processing.
Dehumidification drying, like conventional drying, also uses atmospheric pressure humid air as the drying medium, and air convection heats the wood. It has the advantages of energy saving, good drying quality, and no environmental pollution. However, dehumidification drying usually has low temperature, long drying cycle, and high power consumption due to electric heating, which affects its popularization and application.
