| 摘要 |
The aim of the invention is to create a multistage continuous microwave dryer for plate-shaped products, especially fiber boards, using microwave energy as a drying means while taking preventive steps that allow for an optimal drying process of the fiber boards. Said aim is achieved by disposing the rod antennas ( 12 ) above each plane of conveyance of the continuous microwave dryer ( 1 ), embodying the belt conveyor ( 6, 7, 8 ) on the respective plane of conveyance as a metallic perforated belt that can be effective as a reflective shield for the rod antennas, placing means ( 13 a , 13 b) for sucking off humid air between the rod antennas ( 12 ), said means acting as a reflective shield, and connecting the means for sucking off humid air to a common negative pressure source.
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