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A method for preparing uniform heat-treated wood by stacking

A stacking method and heat treatment chamber technology, which is applied in the field of uniform heat treatment wood preparation, can solve the problems of uneven carbonization on the outside and inside of heat treated wood, obvious difference in material color, and high cost, so as to alleviate the contradiction between supply and demand, the overall material color is uniform, and the cost is reduced. high cost effect

Active Publication Date: 2016-03-02
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the problems of uneven charring inside and outside the heat-treated wood, obvious difference in material color and high cost of the currently prepared heat-treated wood, and provides a method for preparing uniformly heat-treated wood by stacking

Method used

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  • A method for preparing uniform heat-treated wood by stacking
  • A method for preparing uniform heat-treated wood by stacking
  • A method for preparing uniform heat-treated wood by stacking

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specific Embodiment approach 1

[0018] Specific Embodiment 1: In this embodiment, a method for preparing uniformly heat-treated wood by means of stacking is specifically completed according to the following steps:

[0019] 1. Select the wood board and dry the wood board until the moisture content is 8-13%;

[0020] 2. Stack the timber panels processed in step 1 in the heat treatment chamber according to the horizontal vertical stacking method of the panels, and keep a gap of 1-10cm between the timber panels;

[0021] 3. Burn waste biomass materials, heat-treat the heat treatment chamber of the stacked wood panels in step 2, heat up to 150°C-240°C, and keep warm for 1-12 hours;

[0022] 4. Lower the temperature of the heat treatment chamber in the heat treatment step 3 to 30° C. to 60° C., take out the wood boards, and complete the stacking method to prepare evenly heat-treated wood.

specific Embodiment approach 2

[0023] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the wood boards selected in step 1 are not decayed or bent, and the length of the wood boards is 2m-6m. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0024] Embodiment 3: This embodiment is different from Embodiment 1 in that: in step 1, the wood board is dried to a moisture content of 10-12%. Others are the same as in the first embodiment.

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Abstract

The invention relates to a preparation method of uniform heat treatment wood, and in particular relates to a method for preparing the uniform heat treatment wood by stacking, aiming at solving the problems that the existing prepared heat treatment wood is not even in carbonization, obvious in wood color difference and high in cost. The method comprises the steps of: 1. selecting a wood board, and drying; 2. stacking; 3. carrying out heat treatment; and 4. cooling. The heat treatment medium needed by the method is low in cost; and the prepared heat treatment wood is balanced in carbonization inside and outside and even in wood color. The method is used for preparing the uniform heat treatment wood.

Description

technical field [0001] The invention relates to a preparation method for uniformly heat-treated wood. Background technique [0002] Heat-treated wood is a wood product that undergoes ultra-high temperature treatment in a selected medium by purely physical methods to change its biological structure, chemical composition and basic properties. Its performance has three outstanding characteristics of color stability, visual comfort, high biological durability and good dimensional stability. Once heat-treated wood came out, it was deeply loved by the wood and furniture industry because of its green environmental protection and simple process. [0003] However, whether it is ThermoWood in Finland, Retification in France, Plato in the Netherlands, oily treatment in Germany, or the emerging Westwood heat treatment technology in the United States, since the stacking method of the wood panels during the heat treatment process is straight stacking, the resulting The heat treatment me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27M1/06B27K5/00
Inventor 许民孙伟伦李坚罗法三
Owner NORTHEAST FORESTRY UNIVERSITY
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