System and method of removing moisture from fibrous or porous materials using microwave radiation and RF energy
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United States of America Patent
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Jan 30, 2018
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app pub date -
Oct 17, 2014
filing date -
Oct 17, 2013
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Abstract
A system and method for removing moisture from a fibrous material includes applying microwave radiation combined with RF to the fibrous material to heat and evacuate moisture from the fibrous material during a heating cycle and optionally alternating heating cycles with drying/cooling cycles. The fibrous material can be, for example, sawn or dimensional lumber. The application of alternating microwave and RF in a controlled and continuous process advantageously mimics the heating, rewetting and drying cycles of a conventional kiln without the need for batch processing. Accordingly, a faster and more cost-efficient drying process is possible with no defects imparted to the wood in the process.
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