Wood drying method and device

Abstract

The invention discloses a wood drying method and device and belongs to the technical field of drying technologies. The wood drying device comprises a box. Steam generating devices are arranged in the box. The wood drying device is characterized in that the steam generating devices are located on the two sides of the bottom of the box, a steam supply port of the steam generating device is formed in the lower portion of the box, the upper portion of the box is provided with a hot air port, the lower portion of the box is provided with a steam outlet, and the steam outlet is located below the seam supply port. By the adoption of the wood drying device, generated steam can directly steam and dry wood, the heat loss of the steam is reduced, the steaming temperature of the wood can be easily raised, the evaporation speed of moisture in the wood is increased, insect killing and sterilizing can be better achieved, and the service life of the wood is prolonged; in the later period of drying, steam supply is stopped, steam in the wood is replaced by hot air, and therefore the drying effect on the wood is improved; moisture in the wood is steamed out through moisture, the wood is evenly dried, the condition that the wood deforms in the drying process due to sharp heating is avoided, and therefore the drying quality of the wood is improved.

Description

technical field [0001] The invention belongs to the technical field of drying, and in particular relates to a method and equipment for drying wood. Background technique [0002] The dried wood not only has the advantages of easy handling, but also has the characteristics of preventing deformation and warping, increasing elasticity, and improving the quality of wood products. Therefore, the wood basically has to be dried. [0003] The traditional way of drying wood is to dry it naturally in the sun, but this method not only has a slow drying speed, but also is greatly affected by the natural environment during the drying process, and the drying quality of wood is not easy to control; it also takes up a lot of space. With the development of technology, some wood drying equipment has appeared one after another, including steam drying. Most of the steam-generating furnace and the drying wood box are two independent equipment. The steam generated by the furnace is pumped into th...

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Problems solved by technology

Its essence is a hot air drying method. In a closed environment, the moisture in the wood is evaporated by the hot air to form hot steam, which only increases the water content in the hot air. However, the wood that is first heated to evaporate steam during the drying process is easy to overheat. Drying shrinkage, even carbonization, is not conducive to the evaporation of moisture inside the wood, resulting in uneven drying of the wood

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