Abstract: This paper briefly describes the development of microwave drying equipment for wood and wood products, briefly introduces the principles and development status of various drying technologies, finds out the shortcomings of wood drying technology, creatively puts forward atmospheric freeze drying technology under low temperature environment, and introduces the principle and classification of atmospheric freeze drying technology, which opens up a new way for wood drying technology. New ideas for the direction of low temperature.
Key words: wood microwave drying; drying technology; low temperature; atmospheric pressure; freezing
Drying is an indispensable link in the process of wood products processing. Wood drying refers to the process of reducing the moisture content of wood to the specified value range by using the difference between the water vapor pressure inside and outside the wood in the heating process.
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