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Production method of Cryptomeria fortune timber homogeneous carbonized wood

A technology of homogenous carbonized wood and processing method, which is applied in wood processing equipment, wood treatment, wood treatment details, etc., can solve the problem of difficulty in controlling the degree of carbonization, accurate operation, affecting drying and carbonization effects, and unsatisfactory homogenization effect. The problem is to prolong the carbonization time, improve the application value and economic benefits, and improve the effect of gluing.

Inactive Publication Date: 2015-04-08
CHONGQING HOUHUANG JIASHU WOOD IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, after more than a year of production practice, the inventor found that there are still some problems in this patented method, firstly, the degreasing is not perfect, which affects the drying and carbonization effect, and secondly, the homogenization of 5-6cm thicker wood The effect is not ideal, and it is difficult to control the degree of carbonization accurately

Method used

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  • Production method of Cryptomeria fortune timber homogeneous carbonized wood

Examples

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Comparison scheme
Effect test

Embodiment 1

[0028] Cut and saw 10m3 of cedar early wood into 100cm in length and 3cm in thickness; then immerse in 20% lime aqueous solution and cook on low heat, boil after 3 hours, then continue to boil on high fire for 2 hours, then Rinse in boiling clean water for 0.5 hours, then rinse in clean water; then adjust the temperature in the steam oven to 68°C, and spray water vapor into the steam oven to make it saturated, and then degrease the Put the cedar wood into the steam oven to fully absorb water. After 25 hours, the cedar wood absorbs water to reach saturation, then stop spraying water vapor, adjust the temperature in the steam oven to 62°C, and keep the kiln for 12 hours, then open the vent hole to Exhaust outside, and gradually raise the temperature in the steam oven to 80°C, and dehydrate for 3 hours; repeat this twice, then check the moisture content of the wood, and the moisture content is 6%; then the dried cedar wood Move to the damp room and stack for 10 days, so that the ...

Embodiment 2

[0032] Cut and saw 10m3 of cedar early wood into 200cm in length and 4cm in thickness; then immerse in 20% lime aqueous solution and boil on low fire, boil after 3 hours, then boil on high fire continuously for 2.5 hours, then Rinse in boiling clean water for 0.5 hours, then rinse in clean water; then adjust the temperature in the steam oven to 69°C, and spray water vapor into the steam oven to make it saturated, and then degrease the Put the cedar wood into the steam oven to fully absorb water. After 27 hours, the cedar wood absorbs water to reach saturation, then stop spraying water vapor, adjust the temperature in the steam oven to 63°C, and keep the kiln for 13 hours, then open the vent hole to Exhaust outside, and gradually raise the temperature inside the steam oven to 81°C, and dehydrate for 4 hours; repeat this for 3 times, then check the moisture content of the wood, and the moisture content is 6.5%; then dry the cedar wood Move to the damp chamber and stack for 10 da...

Embodiment 3

[0036] Cut and saw 10m3 of cedar early wood into a length of 300cm and a thickness of 5cm; then immerse it in a 20% lime aqueous solution and boil it on a low fire, boil it after 2.5 hours, then boil it on a high fire continuously for 3 hours, then Rinse in boiling clean water for 0.5 hours, then rinse in clean water; then adjust the temperature in the steam oven to 70°C, and spray water vapor into the steam oven to make it saturated, and then degrease the Put the cedar wood into the steam oven to fully absorb water. After 29 hours, the cedar wood has absorbed water to a saturated state, then stop spraying water vapor, adjust the temperature in the steam oven to 64°C, keep the kiln for 14 hours, and then open the vent hole to Exhaust outside, and gradually raise the temperature in the steam oven to 82°C, and dehydrate for 5 hours; repeat this 4 times, and then check the moisture content of the wood, and the moisture content is 7.1%; then the dried cedar wood Move to the damp c...

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Abstract

A production method of a Cryptomeria fortune timber homogeneous carbonized wood comprises eleven operations: cutting, degreasing, drying, moisture regain, stacking, feeding, heating, carbonization, cooling and drawing. The invention has the following beneficial effects: the Cryptomeria fortune timber is subjected to a degreasing treatment first to lay a good foundation for the realization of homogeneous carbonization; for feeding, the timer is coated with kaolin, so as to completely isolate from the air and uniformize carbonization effect; and after kiln sealing, the carbonization temperature is reduced overall, so that the same degree of carbonization on the Cryptomeria fortunei timber from the outer to the inner parts can be guarantees, and the moisture absorption, dimensional stability, mechanical properties, corrosion resistance, hardness, compressive strength, bonding performance, coating performance, especially color of all parts of the timber show the same good characteristics. By improving the degreasing method, carbonization auxiliary materials and carbonization temperature and time, the carbonized wood can reach better homogenization effect; and the bonding effect can improved, and application value and economic benefit of the product can be increased.

Description

technical field [0001] The invention belongs to the technical field of forestry product processing, in particular to a production and processing method of homogeneous carbonized cedar wood. Background technique [0002] Carbonized wood is to carbonize wood under high temperature without any chemical agent, so that its nutrients are destroyed, so it has better anti-corrosion and insect-proof functions. Because its water-absorbing functional group hemicellulose is reorganized, the product has better physical properties. [0003] Carbonized wood is a real green and environmentally friendly product. Although the product has anti-corrosion and insect-proof properties, it does not contain any harmful substances. Animals and the environment have any negative impact; the surface of the charred wood has an aesthetic effect of primary color, yellow, brown or dark brown, and has anti-corrosion and anti-biological attack effects. Its moisture content is low, it is not easy to absorb wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K5/00B27M1/06
CPCB27K5/00B27M1/06
Inventor 刘耀伦
Owner CHONGQING HOUHUANG JIASHU WOOD IND
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