Vacuum drying method for processing wood plate raw materials
A vacuum drying and wood board technology, applied in the direction of drying solid materials, method combination to dry solid materials, drying, etc., can solve the problems of reducing wood board, reducing product quality, slow drying speed, etc., to avoid loss and wide application range , the effect of simple steps
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Embodiment 1
[0019] This embodiment of the present invention is to provide a vacuum drying method for processing wood board raw materials. The drying method is to place the wood board raw materials in a vacuum environment to evaporate all or part of the moisture inside, while the aforementioned The raw materials of the obtained wood boards are generally regular or irregular columnar logs. To be precise, the cross-section of the logs is circular or close to circular, so the logs mentioned here can be considered as common fast-growing forest trees. , can also be considered as other perennial trees.
[0020] The vacuum drying method mentioned above, in this embodiment of the present invention, is to directly put the logs into the drying tank, seal the opening of the drying tank, and then use vacuum equipment to form a vacuum environment inside the drying tank. Heating from the outside of the drying tank, the temperature of the external heating of the drying tank in this embodiment of the pres...
Embodiment 2
[0024] This embodiment of the present invention is to provide a vacuum drying method for processing wood board raw materials. The drying method is to place the wood board raw materials in a vacuum environment to evaporate all or part of the moisture inside, while the aforementioned The raw materials of the obtained wood boards are generally regular or irregular columnar logs. To be precise, the cross-section of the logs is circular or close to circular, so the logs mentioned here can be considered as common fast-growing forest trees. , can also be considered as other perennial trees.
[0025] The vacuum drying method mentioned above, in this embodiment of the present invention, is to directly put the logs into the drying tank, seal the opening of the drying tank, and then use vacuum equipment to form a vacuum environment inside the drying tank. Heating from the outside of the drying tank, the temperature of the external heating of the drying tank in this embodiment of the pres...
Embodiment 3
[0029] This kind of embodiment of the present invention is basically the same as above-mentioned embodiment 1 and embodiment 2, and the only difference between them is that in this kind of embodiment, the log is placed in a drying tank with a vacuum pressure of 0.01 MPa and heated at 165 degrees centigrade. The temperature heats the outside of the drying tank, and the heating time is 72 hours, that is, about 3 days. After the completion, the dried wood board raw material is obtained, and the drying tank adopted in this embodiment of the present invention has the largest cross section The diameter is 80 cm.
[0030] Simultaneously, in order to prevent the deformation of the log when it is dried in a vacuum environment, the inventor of the present invention, through experiments, thinks that a more preferred technical solution for the above-mentioned embodiments 1 to 3 is to split and process the broken core near the middle of the log, More specifically, the cross-sectional diame...
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