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A technology of carbonization and wood, applied in wood processing utensils, charcoal/burning, bark area/debris/dust/waste removal, etc., can solve the problems of swelling, poor carbonization effect, unevenness, etc.
Active Publication Date: 2020-06-02
广西格卡环保科技有限公司
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[0004] However, most of the currently disclosed wood carbonization technologies can only carbonize the surface of wood, and cannot carbonize wood deeply, so that after a long time of use, the wood will expand or deform and crack; even if it can carbonize wood deeply The carbonization is not uniform, the carbonization effect is poor, and the energy consumption is high
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Embodiment 1
[0042] Use the following steps to complete wood carbonization:
[0043] (1) Stack the wood in a carbonization box for equilibrium moisture content treatment. The temperature in the carbonization box is 60-120℃, humidity is 100%RH, and the working time is 96 hours, 0-24 hours 60°C, 24-48 hours 80°C , 48-72 hours at 100°C, 72-96 hours at 120°C.
[0044] (2) Dry the wood after the equilibrium moisture content treatment to ensure that the temperature in the carbonization box is 100-120℃, the humidity is 100-20%RH, the humidity gradient is decreasing, and the operation time is about 72 hours.
[0045] (3) Carburize the dried wood. After the drying stage, increase the temperature in the carbonization box from 120°C to 190-220°C, increasing by 10°C every 2 hours; when entering the carbonization temperature, strictly control the carbonization The time is calculated according to the thickness of the sheet, and the carbonization speed is 10mm / hour.
[0046] (4) After the carbonization treatmen...
Embodiment 2
[0048] Use the following steps to complete wood carbonization:
[0049] (1) Stack the wood in the carbonization box of the carbonization treatment device for equilibrium moisture content treatment, and use the anti-burning combustion device of the carbonization treatment device to provide hot air and steam to ensure that the temperature in the carbonization box is 60-120°C and the humidity is 100%. RH, working time 96 hours, 0-24 hours 60°C, 24-48 hours 80°C, 48-72 hours 100°C, 72-96 hours 120°C.
[0050] (2) Dry the wood after the equilibrium moisture content treatment, and use the anti-burning combustion device of the carbonization treatment device to provide hot air and steam to ensure that the temperature in the carbonization box is 100-120℃, humidity 100-20%RH, and humidity gradient Decrease, the operation time is about 72 hours.
[0051] (3) Carburize the dried wood. After the drying stage, increase the temperature in the carbonization box from 120°C to 190-220°C, increasing b...
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Abstract
A wood carbonization treatment method comprises the following steps: (1) stacking wood in a carbonization box to carry out balanced water content treatment, wherein the temperature in the carbonization box is 60-120 DEG C, the humidity is 100% RH, the working time is 96 hours, and the temperature raises in stages; (2) drying the wood, wherein the temperature in the carbonization box is 100-120 DEGC, the humidity is 100-20% RH, humidity gradient is decreased, and the working time is 72 hours; (3) carbonizing the wood, and raising the carbonizing temperature in the carbonization box from 120 DEG C to 190-220 DEG C, wherein 10 DEG C is raised every 2 hours and the carbonization speed is 10 mm/hour; and (4) after the carbonization treatment is finished, adding steam to humidify, so that the ambient temperature in the carbonization box is gradually reduced to 60 DEG C from above 150 DEG C; and when the temperature of the carbonization box is close to the outdoor temperature, taking out thewood. According to the method, the proportion of hot air to water vapor in warm and wet airflow is adjusted to achieve the purpose of thermal modification of the wood.
Description
Technical field [0001] The invention relates to the technical field of wood thermal modification treatment, in particular to a wood carbonization treatment method and adopted equipment. Background technique [0002] Wood is mainly composed of cellulose and hemicellulose. Cellulose acts as a skeleton in wood cell walls. Its chemical properties and supramolecular structure have an important influence on the strength of wood. The hydroxyl groups and water molecules in cellulose can also form hydrogen bonds. The hydrogen bonds existing between hydroxyl groups in different positions directly affect the moisture absorption and desorption process of wood. A large number of hydrogen bonds can increase the strength of wood, reduce moisture absorption, reduce chemical reactivity, etc., and the moisture absorption of cellulose directly affects the dimensional stability and strength of the limit. After the wood undergoes the carbonization process, the concentration of hydroxyl groups is red...
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