Wood drying treatment method

A treatment method, wood drying technology, which is applied in the direction of promoting the drying of solid materials, drying solid materials, heating to dry solid materials, etc., can solve the problems of prolonged drying cycle, decreased wood quality, and increased drying defects, and achieve shortening Effects of drying time, improvement of structural strength, and increase of swelling coefficient

Active Publication Date: 2017-12-08
FUNAN TENGBO ARTS & CRAFTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low permeability of wood, the drying cycle of wood is prolonged, the energy consumption is large, and the problems of increased drying defects, drying degradation, etc., and high drying costs are prominent.
Microwave treatment can improve the permeability of wood. Therefore, in the prior art, microwave treatment is used to dry wood, which can speed up the drying speed. The probability increases significantly, and the quality of the dried wood decreases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A wood drying treatment method, comprising:

[0020] (1) Degreasing: Soak the wood in aqueous ethanol solution for 2 hours, then take it out, and then treat it with 500W microwave for 2 minutes at 0.15MPa and 120℃;

[0021] (2) Impregnation with lye: put the wood treated in step (1) into lye and soak for 2 hours, then take it out and drain;

[0022] (3) Pre-drying: The wood treated in step (2) is subjected to one microwave treatment, and the microwave energy of one microwave treatment reaches 100MJ / m³;

[0023] (4) Buffer treatment: Treat the wood treated in step (3) for 15 minutes in an environment with a temperature of 80°C and a relative air humidity of 80%;

[0024] (5) Microwave drying: The wood treated in step (4) is subjected to secondary microwave treatment, and the microwave energy of the secondary microwave treatment reaches 120MJ / m³.

[0025] Further, the ethanol mass fraction in the ethanol aqueous solution is 30%.

[0026] Further, the soaking temperatur...

Embodiment 2

[0032] A wood drying treatment method, comprising:

[0033] (1) Degreasing: Soak the wood in aqueous ethanol solution for 2 hours, then take it out, and then treat it with 500W microwave for 3 minutes at 0.18MPa and 125℃;

[0034] (2) Impregnation with lye: put the treated wood in step (1) into lye for 3 hours, then take it out and drain;

[0035] (3) Pre-drying: The wood treated in step (2) is subjected to one microwave treatment, and the microwave energy of one microwave treatment reaches 120MJ / m³;

[0036] (4) Buffer treatment: Treat the wood treated in step (3) for 20 minutes in an environment with a temperature of 90°C and a relative air humidity of 80%;

[0037] (5) Microwave drying: The wood treated in step (4) is subjected to secondary microwave treatment, and the microwave energy of the secondary microwave treatment reaches 150MJ / m³.

[0038] Further, the ethanol mass fraction in the ethanol aqueous solution is 35%.

[0039] Further, the immersion temperature of th...

Embodiment 3

[0045] A wood drying treatment method, comprising:

[0046] (1) Degreasing: Soak the wood in aqueous ethanol solution for 2 hours, then take it out, and then treat it with 500W microwave for 2.5min at 0.16MPa and 122℃;

[0047] (2) Alkaline impregnation: soak the wood treated in step (1) in alkali solution for 2.5 hours, then take it out and drain;

[0048] (3) Pre-drying: The wood treated in step (2) is subjected to one microwave treatment, and the microwave energy of one microwave treatment reaches 110MJ / m³;

[0049] (4) Buffer treatment: Treat the wood treated in step (3) for 18 minutes in an environment with a temperature of 85°C and a relative air humidity of 80%;

[0050] (5) Microwave drying: The wood treated in step (4) is subjected to secondary microwave treatment, and the microwave energy of the secondary microwave treatment reaches 130MJ / m³.

[0051] Further, the ethanol mass fraction in the ethanol aqueous solution is 32%.

[0052] Further, the immersion tempera...

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PUM

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Abstract

The invention discloses a wood drying treatment method, and relates to the technical field of wood treatment. The wood drying treatment method comprises the steps of (1) degreasing, (2) alkali liquor dipping, (3) pre-drying, (4) buffer treatment, and (5) microwave drying. Through treatment with the wood drying treatment method, the cracking condition after wood drying can be obviously reduced, and the quality of dried wood is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of wood treatment, and in particular relates to a wood drying treatment method. Background technique [0002] Wood drying is an indispensable production link in the process of wood product processing, and it is also the process with the highest energy consumption. Due to the low permeability of wood, the drying cycle of wood is prolonged, the energy consumption is large, and the problems of drying defects increase, drying drop, etc., and high drying cost are prominent. Microwave treatment can improve the permeability of wood. Therefore, in the prior art, microwave treatment is used to dry wood, which can speed up the drying speed. The likelihood increases significantly that the quality of the dried wood decreases. Contents of the invention [0003] The object of the present invention is to provide a wood drying treatment method for existing problems. [0004] The present invention is achieved through th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B3/347F26B1/00
Inventor 腾博
Owner FUNAN TENGBO ARTS & CRAFTS CO LTD
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