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Wood protection processing method

A technology for protecting and treating wood, applied in the direction of wood impregnation, impregnated wood, wood processing equipment, etc., can solve the problems of difficult environmental protection treatment, achieve the effect of solving the problem of anti-loss, protecting the ecological environment, and low manufacturing cost

Active Publication Date: 2008-06-11
ZHEJIANG ANJI FENGHUI BAMBOO PROD & GARMENTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of processing bamboo, wood and straw into corresponding bamboo charcoal, charcoal and peat, due to the use of modern machines for efficient production, the by-product-tar produced in the production process has not found its use and has become waste. It is difficult to carry out environmental protection treatment, so it has become a technical problem in the modern production of carbon

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Put 50kg of water into the 500L reactor, then slowly put in 32kg of sodium hydroxide, stir until completely dissolved, then slowly add 200kg of bamboo tar, stir for 1 hour to prepare A liquid;

[0024] Dilute A solution 100 times with water, treat the wood for 2 hours at a temperature of 20°C and a pressure of 0.5 atmospheres, and then use 1% dilute hydrochloric acid to acidify and impregnate the wood under the same temperature and pressure. The time is 2 hours.

Embodiment 2

[0026] In the 500L reactor, drop into 400kg concentration and be the NaOH aqueous solution of 0.2%, add 40kg and be ground into 100 mesh symphylla powder, stir and react for 4 hours, after the slurry is filtered, the filtrate is concentrated to 50kg, made B liquid;

[0027] Dilute B liquid 80 times with water, and treat the wood for 3 hours at a temperature of 20°C and a pressure of 1 atmosphere. for 3 hours.

Embodiment 3

[0029] Put 175kg of grass tar into the 500L reactor, then slowly put in 34kg of sodium hydroxide, stir and react for 1.5 hours, slowly add 45kg of water, stir evenly, and prepare A liquid;

[0030] In the 500L reactor, drop into 400kg concentration and be the NaOH aqueous solution of 0.2%, add 40kg and be ground into 100 mesh symphylla powder, stir and react for 4 hours, after the slurry is filtered, the filtrate is concentrated to 50kg, made B liquid;

[0031] Dilute the mixture of liquid A and liquid B (A:B=1:1) 100 times with water, treat the wood for 3 hours at a temperature of 25°C and a pressure of 1 atmosphere, and then use 5% bamboo for the impregnated wood. The vinegar solution was acidified and dipped under the same temperature and pressure conditions, and the treatment time was 3 hours.

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PUM

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Abstract

A processing method for protecting wood belongs to the technical field of antiseptic, mould proofing and insect prevention processing method, which is characterized in that the processing method comprises that adding NaOH or KOH in biomass gasification tars, mixing and stirring the mixture to react for 1-2 hours, then obtaining liquid A, crashing leaves and fruits of camptotheca acuminata decne to 50-200 courses to be mixed with aqueous solution of NaOH or KOH with weight of 5-20 times of camptotheca acuminata decne materials and consistency of 0.1-0.4%, after being stirred homogeneously, the mixture employs ultrasonic cell-break to react for 4-8 hours, after the slurry is filtered and concentrated, obtaining liquid B, the wood for treatment goes through dipping treatment by liquid A or liquid B which are diluted 20-100 times, then the wood after the dipping treatment goes through acidification dipping treatment. The processing method for protecting wood has antiseptic, mould proofing and insect prevention effects, includes no heavy metal which produces toxins to human beings and domestic animals, is safe for human being and causes no environmental pollution, which further is low in cost.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion, anti-mildew and anti-insect treatment methods, and specifically relates to a wood protection treatment method. Background technique [0002] Wood has obvious biological characteristics and is easily attacked by bacteria and insects. When in use, it can be treated with appropriate antiseptic, antifungal agents and insecticides according to different application environments, which can effectively delay the service life of wood and save wood. Conservation of forest resources. my country currently uses very little wood after antiseptic treatment, and most of them use chemical agents that are harmful to humans and the environment. Wood protection technology is facing new opportunities and challenges. The development of low-toxicity, high-efficiency, non-polluting, and Selective and economical wood preservatives are key issues that this industry urgently needs to solve. The extraction and deve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/52
Inventor 鲍滨福马建义张齐生沈哲红王品维叶良明
Owner ZHEJIANG ANJI FENGHUI BAMBOO PROD & GARMENTS
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