Abstract: This paper analyzes the development of various technologies of wood drying in recent years through the collection, indexing and combing of patent documents in the field of wood drying technology, and studies the evolution route of main wood microwave drying equipment, which can help to improve this. The review efficiency of the field examiner brings the examiner closer to the skilled person in the field.
Key words: wood microwave drying; energy saving
Drying is an indispensable and important process in the processing of various forms of wood. It is the most energy-intensive process in the production of wood products. Common artificial wood drying methods that have been industrialized to date include conventional drying, dehumidifying drying (also known as heat pump drying), solar drying, vacuum drying, high frequency drying, microwave drying, infrared drying, and other drying methods (mainly combined drying).
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