Moisture in wood can move inside the wood under certain conditions, which is called moisture conductivity of wood. Moisture can drain from both ends of the wood by moving along the fiber direction, or it can drain from the sides of the wood across the fiber direction, and in most boards, the length is much greater than the thickness width. The side area of ​​the sheet is much larger than the end area. Therefore, although the conduction of moisture along the fibers is easier than that across the fibers, it is the conduction across the fibers that plays a decisive role in wood drying.

wood drying curve When the wood is dried in a gaseous medium with a certain temperature and humidity, if the change of the moisture content of the wood is measured at regular intervals, and the time is taken as the abscissa and the moisture content is drawn on the ordinate, the curve is called the drying curve. (Figure 1-2). The drying process can be analyzed on the drying curve diagram. The whole process of wood drying can be divided into three stages.

The track type veneer kiln is a patented veneer drying equipment independently developed by our company. The following is a comparison of the advantages and disadvantages between track type veneer drying kilns and roller type dryers