Abstract:
A wood treatment method and apparatus that includes a laterally shiftable transportation segment adjacent a door of a wood treatment vessel. When retracted, the shiftable transportation segment accommodates the opening and/or closing of the door. When aligned, the shiftable transportation segment can support the weight of a cart that transports a bundle of wood into and/or out of the wood treatment vessel. Wood treatment systems described herein may also include a bundle adjustment system for applying an aligning force to at least a portion of the bundle during its loading and/or unloading from the wood treatment vessel.
Abstract:
A microwave heater capable of heating a bundle of wood and equipped with an optimized system for introducing microwave energy into the heater. The system uses a high-efficiency elongated waveguide launcher having a plurality of launch openings defined in relatively thin walls. The waveguide launcher can exhibit a launch efficiency of at least 50 percent, thereby providing substantially energy savings over conventional waveguide launchers.
Abstract:
A commercial scale microwave system that includes a heater having enhanced heat distribution and minimized void space. The enhanced heat distribution can be provided by a unique launcher and/or reflector configuration disposed in the interior of the microwave heater. The microwave system can be operated to prevent the wood from both overheating (which results in scorching) and under-heating (which results in inadequate drying and/or inadequate thermal- modification). The microwave heating system can provide enhanced microwave energy distribution for large quantities of wood, even large quantities of wood heated under vacuum and/or in the presence of one or more chemical reagents.
Abstract:
A commercial scale system and process for chemically modifying wood and then heating the chemically-modified wood. The system/process separates the chemical modification step from the heating step by utilizing two different vessels for the modification and heating steps. The system and process can, in certain situations, include a containment room for preventing escape of vapors from a chemical wood modification reactor, a wood heater, and/or a chemically-modified bundle of wood as the bundle is transported from the wood modification reactor to the wood heater.