Abstract: This paper briefly describes the development of drying technology for wood and wood products. It briefly introduces the principles and development status of various drying technologies, finds out the lack of wood drying technology, and creatively proposes atmospheric freezing in low temperature environment. Drying technology, and introduced the principle and classification of atmospheric pressure freeze-drying technology, opened up a new idea for wood drying technology in the low temperature direction.
Keywords: microwave drying equipment; low temperature; atmospheric pressure; freezing
Drying is an indispensable part of the processing of wood products. Wood drying refers to the process of using the difference between the internal and external water vapor pressures in the heating process to reduce the internal moisture content of the wood to within the specified numerical range. This process plays an important role in the field of wood processing and its manufacture, and is one of the most technologically advanced processes. If the wood and its wood products are not properly treated in the drying process, it will cause cracking, discoloration, etc., and the quality will be problematic, so that the wood and its wood products cannot be used and will be wasted.
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