The main working principle of wood drying machine

In wood drying machine normal operation, the fuel in the combustion chamber full burning, generate heat, heat drying system in fully absorbed by the drying medium, to produce the temperature of 170 degrees Celsius, the circulation fan, under the action of high temperature air flow through the control system, transmission system, the high temperature hot air to dry indoor to dry the wood; At the same time the steam generating device on the equipment, can produce a large number of atmospheric steam, according to the requirements of the drying process, timely to steam into the drying chamber, to steam injection, wet processing of wood, damping system is an independent steam system, and equipped with a safety device. Wood drying machine is first and foremost make wood surface evaporation, the moisture content of surface layer is lower than the wood interior, internal moisture move to the surface under the effect of moisture content gradient. At the early stage of the drying speed depends on the speed of wood surface evaporation, the middle and late drying, drying speed depends on the internal moisture movement speed, is inversely proportional to the plate thickness and wood specific gravity. In addition, sapwood drying speed is faster than heartwood. The strings of the hard wood panel dry faster than diameter panel;But softwood string diameter surface no obvious difference. Wood drying machine and the influence of tree species the effect of the drying effect is very big also.