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Method for manufacturing board by using saw dust

A wood chip and board technology, applied in wood treatment, impregnated wood, wood impregnation, etc., can solve the problems of low added value of wood chip processing, difficulty in meeting wood demand, and low utilization rate, so as to increase added value and enhance the degree of mutual integration and fusion speed, the effect of maintaining the original performance

Inactive Publication Date: 2018-05-01
广西桂林林博士家具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The growth of existing timber plantations is difficult to meet the increasing demand for timber
[0003] As the residue of wood processing, wood chips are also increasing with the continuous increase of wood usage. Existing wood chips are usually used as fuel, fertilizer and feed, with low utilization rate and few uses, and the added value of wood chip processing is low.

Method used

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  • Method for manufacturing board by using saw dust

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for making boards from sawdust, comprising the steps of:

[0022] (1) Raw material pretreatment: raw material selection: choose sawdust from wood processing plant as raw material to remove impurities; use a pulverizer to crush the sawdust, sieve and control the crushed particle size to 3mm according to needs; put the sawdust into the drying box, and control the drying The temperature is 80°C, and the moisture in the sawdust is removed by drying. The moisture content of the dried sawdust is 42%; the dried sawdust is placed in the impregnating agent and soaked for 8 hours while stirring. The temperature of the impregnating agent is 72°C, and then deionized Rinse with water until neutral, filter with suction, dry for the second time until the water content is 9%, crush and sieve again to obtain primary modified wood chips; put the primary modified wood chips into a closed pyrolysis furnace, and protect Gas for pyrolysis protection, the temperature is controlled at...

Embodiment 2

[0027] A method for making boards from sawdust, comprising the steps of:

[0028] (1) Raw material pretreatment: raw material selection: choose sawdust from wood processing plant as raw material to remove impurities; use a pulverizer to crush the sawdust, sieve and control the crushed particle size to 4mm according to needs; put the sawdust into the drying box, and control the drying The temperature is 105°C, and the moisture in the sawdust is removed by drying. The moisture content of the dried sawdust is 45%; the dried sawdust is placed in the impregnating agent and soaked for 9 hours while stirring. The temperature of the impregnating agent is 76°C, and then deionized Rinse with water until neutral, filter with suction, dry for the second time until the water content is 11%, crush and sieve 95 mesh again to obtain primary modified wood chips; put the primary modified wood chips into a closed pyrolysis furnace to protect Gas for pyrolysis protection, the temperature is contr...

Embodiment 3

[0033] A method for making boards from sawdust, comprising the steps of:

[0034](1) Raw material pretreatment: raw material selection: choose sawdust from wood processing plant as raw material to remove impurities; crush the sawdust with a crusher, screen and control the crushed particle size to 5mm according to needs; put the sawdust into the drying box and control the drying The temperature is 130°C, and the moisture in the sawdust is removed by drying. The moisture content of the dried sawdust is 49%; the dried sawdust is placed in the impregnating agent and soaked for 10 hours while stirring. The temperature of the impregnating agent is 80°C, and then deionized Rinse with water until neutral, filter with suction, dry for the second time until the water content is 13%, crush and sieve again to obtain primary modified wood chips; put the primary modified wood chips into a closed pyrolysis furnace, and protect Gas for pyrolysis protection, the temperature is controlled at 35...

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Abstract

The invention belongs to the technical field of furniture material products, and particularly discloses a method for manufacturing a board by using saw dust. The method for manufacturing the board byusing the saw dust comprises the steps of (1), raw material pretreatment, (2), raw material mixing, (3), compression molding, and (4), post treatment. According to the method, the saw dust is used asa raw material, is subjected to modification treatment and then is mixed with an adhesive and the like to be put into a die to be pressed and to be made into the board, so that the application range of the saw dust is enlarged, the additional value of saw dust processing is improved, and the produced board has good mechanical properties.

Description

【Technical field】 [0001] The invention relates to the technical field of building materials, in particular to a method for making boards from sawdust. 【Background technique】 [0002] Wood is a biomaterial that is easy to process and has relatively high strength. As an industrial and domestic material, it can highlight the advantages of carbon sequestration, emission reduction, low-carbon energy saving, and thus has been widely used. The growth of existing timber plantations cannot meet the ever-increasing demand for timber. [0003] As the residue of wood processing, wood chips are also increasing with the continuous increase of wood usage. Existing wood chips are usually used as fuel, fertilizer and feed, with low utilization rate and few uses, and the added value of wood chip processing is low. 【Content of invention】 [0004] The object of the present invention is to provide a method for making boards from sawdust in view of the above existing problems. The present inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/08B27N1/00B27K3/02B27K3/52B27K5/00C08L97/02C08L63/00C08L77/00C08K5/3445C08K5/3492C08K5/5425
CPCB27N3/08B27K3/025B27K3/52B27K5/0085B27K2200/15B27N1/00C08L97/02C08L2205/025C08L2205/035C08L63/00C08L77/00C08K5/3445C08K5/34922C08K5/5425
Inventor 覃玖武
Owner 广西桂林林博士家具有限公司
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