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A kind of bamboo beam dry heat treatment method

A technology of dry heat treatment and bamboo beams, which is applied in the direction of wood heat treatment, wood treatment, wood treatment details, etc., can solve the problems of recombined bamboo dimensional stability, limited improvement of mildew resistance, difficulty in ensuring airtightness, and low steam treatment temperature, etc., to achieve Guarantee airtightness, reduce corrosion, and reduce the effect of acid gas

Active Publication Date: 2017-09-29
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing heat treatment process has played a certain role in improving the performance of recombined bamboo, but there are also the following problems: the steam treatment temperature is low, and the improvement of dimensional stability and mildew resistance of recombined bamboo is limited; and dry air treatment, due to the airtight It is difficult to guarantee the safety, it is easy to cause spontaneous combustion, and the acid gas produced will seriously corrode the kiln body

Method used

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  • A kind of bamboo beam dry heat treatment method

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Effect test

Embodiment 1

[0015] The equipment used in the bamboo bundle heat treatment equipment of the present invention comprises a pressure tank (1) and an oil pool (3), comprising the following steps: (1) preparation of bamboo bundles, (2) drying of bamboo bundles, (3) heat treatment of bamboo bundles, (4) ) Bamboo beam balance treatment:

[0016] (1) Bamboo bundle preparation:

[0017] After the raw bamboo is processed into bamboo strips with a thickness of 5 mm, it is decomposed into bamboo bundles with a diameter of 1.5 mm fiber bundles by using a decomposer;

[0018] (2) Bamboo bunch drying

[0019] The equipment used for drying the bamboo bundles described in step (1) is a mesh belt dryer, the drying temperature is 90°C, and the moisture content of the bamboo bundles after drying is 10%;

[0020] (3) Bamboo bundle heat treatment

[0021] After the step (2) is dried, the bamboo bundles are heated to 100°C with a mesh belt dryer, put into the pressure tank (1), and after closing the pressure...

Embodiment 2

[0025] The equipment used in the bamboo bundle heat treatment equipment of the present invention comprises a pressure tank (1) and an oil pool (3), comprising the following steps: (1) preparation of bamboo bundles, (2) drying of bamboo bundles, (3) heat treatment of bamboo bundles, (4) ) Bamboo beam balance treatment:

[0026] (2) Bamboo bundle preparation:

[0027] After the raw bamboo is processed into bamboo strips with a thickness of 3 mm, it is decomposed into bamboo bundles with a diameter of 3 mm fiber bundles by using a decomposer;

[0028] (2) Bamboo bunch drying

[0029] The equipment used for drying the bamboo bundles described in step (1) is a mesh belt dryer, the drying temperature is 100°C, and the moisture content of the bamboo bundles after drying is 10%;

[0030] (3) Bamboo bundle heat treatment

[0031] Put the dried bamboo bundles in step (2) into the pressure tank (1), and after closing the pressure tank door, put the bamboo bundles together with the pre...

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Abstract

The invention discloses a bamboo bundle dry heat treatment method. A pressure tank filled with a bamboo bundle is placed into hot oil, the impermeability of the heat treatment process is guaranteed, and spontaneous combustion cannot happen even when the heat treatment temperature reaches 220 DEG C. A hot oil pool is adopted, it can be guaranteed that in the heat treatment process, the temperature is constantly kept consistent, and the uniformity of heat treatment of the bamboo bundle is improved. The water content of the bamboo bundle not treated is controlled below 10%, acid gas generated through hydrolysis of the bamboo in the heat treatment process can be effectively reduced, corrosivity to equipment is reduced, and the service life of the equipment can be prolonged.

Description

technical field [0001] The invention relates to a heat treatment process for bamboo bundles, which is suitable for modifying bamboo bundles so as to improve the dimensional stability, weather resistance and corrosion resistance of recombined bamboo prepared from bamboo bundles. Background technique [0002] Recombined bamboo, also known as heavy bamboo, is a new bamboo material that reorganizes and strengthens bamboo. It has become one of the mainstream products in the bamboo industry. Heat treatment of bamboo bundles can effectively change the quality of end products. The color and luster can also improve the dimensional stability and mildew resistance of the board. It is one of the main ways to increase the value of recombined bamboo. The current heat treatment process mainly includes two types: one is steam treatment, and the equipment used is a pressure tank, and the other is steam treatment. The first is dry air treatment, and the equipment used is a drying kiln. The e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27K9/00B27K5/00F26B25/22
CPCB27K5/0085B27K9/002B27K2240/20F26B25/22
Inventor 李延军许斌丁涛董会军蔡家斌
Owner NANJING FORESTRY UNIV
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