CN103419262B - A kind of Waste timber regeneration method - Google Patents
A kind of Waste timber regeneration method Download PDFInfo
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- CN103419262B CN103419262B CN201310365096.7A CN201310365096A CN103419262B CN 103419262 B CN103419262 B CN 103419262B CN 201310365096 A CN201310365096 A CN 201310365096A CN 103419262 B CN103419262 B CN 103419262B
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- wood
- waste
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- wood dust
- earth
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Abstract
The invention discloses a kind of Waste timber regeneration method, by techniques such as the pulverizing of waste and old wood, proportioning, compression molding, cooled and solidified, carrying out the recycling of waste and old wood, section bar can carry out the injection-compression molding of difformity, size as required；Wood fibre, earth, ureaformal dehyde resin glue merge completely, product after non-friable, indeformable, pressure injection has good physical and mechanical property, contrast original product wood quality intensity increases by 2～3 times, and has stronger plasticity, elegance durable in use, elegant in appearance, exquisite.
Description
Technical field
The present invention relates to timber cycling and reutilization field, particularly relate to a kind of Waste timber regeneration method.
Background technology
Wood and artificial board industry for a long time, with timber and wood materials as raw material, is sent out by the most progressive
The technology of exhibition and mechano-electronic equipment carry out production and operation and development.Owing to timber has lightweight, texture
Attractive in appearance, be prone to machining, and belong to the features such as Renewable resource, deeply liked by people, become
Wide variety of material it.In industrialized society, timber industry is in the many countries including China
Economic construction plays significant role, has brought the most economic profit to the development of local economy and market
Benefit.But meanwhile, exceedingly utilization, deforestation are opened up wasteland, are only cut and do not make, and make the forest reserves suffer seriously
Broken ring, some places are destroyed by vegetation, severe water and soil erosion, thus affect the ecology of downstream river
Environment.
According to statistics, the waste wood such as domestic annual building, packaging reaches more than 7,000,000 tons, and these are discarded
If timber is reclaimed effectively utilization, the wood-based plate of more than 300 ten thousand steres will can be produced, alternative gloomy
Woods resource 800 ten thousand stere, is equivalent to reduce deforestation 1,500,000 mu every year.
The method of waste and old wood of the prior art recycling, such as disclosed in 200610086188.1 one
Kind utilize waste and old wood to prepare the method for fiber, one disclosed in 201310038581.3 utilizes waste and old wood
Manufacture the method for finger jigsaw, that one disclosed in 201310038584.7 utilizes waste and old wood to manufacture solid wood is multiple
The method closing door, and one disclosed in 201110155570.4 to utilize waste and old wood to produce restructuring compound
The manufacture method of sheet material, is all to be sawn into sheet material, then splicing again after waste and old wood polishing.These
The regeneration timber that method produces, its intensity can not meet the requirement producing various Wood products, and section bar
Structure, size all cannot arbitrarily set, cause greatly restriction to follow-up processing, produce product simultaneously
The quality of product is relatively low, inefficient, part adhesive content of formaldehyde severe overweight, does not reaches national standard
After requirement flows to market, significantly impact the healthy of consumer and living environment.
Summary of the invention
The technical problem to be solved in the present invention is to overcome defect of the prior art, it is provided that a kind of production efficiency
Height, product strength is higher, and plasticity is more preferable, and improves production efficiency, reduces production cost,
There is the Waste timber regeneration method of significant economic and social benefit.
For solving the problems referred to above, a kind of Waste timber regeneration method of the present invention, it is characterised in that include
Following steps:
1) waste and old wood is pulverized, generate wood dust；
2) wood dust is put into drying room, after drying room is warming up to 68～72 DEG C, continuous hot air circulation 90～96
Hour, control wood dust water content mass percent 8～13%；
3) temperature 68～72 DEG C, temperature retention time 18～24 hours are kept；
4) wood dust, plasticity earth and ureaformal dehyde resin glue are carried out proportioning according to following masses portion rate,
Wood dust 80～85 parts
Earth 1～15 parts
Ureaformal dehyde resin glue 1～5 parts
And above-mentioned dispensing is fully smashed, mix homogeneously；
5) at a temperature of 335～350 DEG C, injection-compression molding is carried out by step 4 obtains mixture；
6) the injection-compression molding body obtained in step 5 is maintained at 14～16 DEG C to cool down, cool time
22～24 hours.
In described step 4, wood dust, plasticity earth and ureaformal dehyde resin glue are preferably according to following masses number
Than carrying out proportioning:
Wood dust 80 parts
15 parts of earth
Ureaformal dehyde resin glue 5 parts
In described step 5, the temperature of injection-compression molding is preferably 350 DEG C.
In described step 6, chilling temperature is preferably 14 DEG C.
A kind of Waste timber regeneration method of the present invention, by the pulverizing of waste and old wood, proportioning, mold pressing
The technique such as molding, cooled and solidified, carries out the recycling of waste and old wood, and section bar can enter as required
Row difformity, the injection-compression molding of size；Wood fibre, earth, ureaformal dehyde resin glue merge completely, non-friable,
Product after indeformable, pressure injection has good physical and mechanical property, contrasts original product wood quality intensity
Increase by 2～3 times, and have stronger plasticity, elegance durable in use, elegant in appearance, exquisite.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that technical solution of the present invention, below in conjunction with embodiment party
The present invention is described in further detail for formula.
A kind of Waste timber regeneration method of the present invention, comprises the following steps:
1) waste and old wood is pulverized, generate wood dust；
2) wood dust is put into drying room, after drying room is warming up to 68～72 DEG C, continuous hot air circulation 90～96
Hour, control wood dust water content mass percent 8～13%；
The present invention uses hot air drying treatment technology, designs drying room length 8 meters, wide 6 meters, high 3.8 meters,
Top carries out water conservancy diversion dehumidifying, and ventilation isolating device is designed in bottom, surrounding, makes hot air circulation circulate；Adopt
Device, far infrared timber dehumidifying on-line water flushing, external WHY-40 type air stove is controlled with PLC full application of brake
Produce steam and through pipeline, hot blast is sent in drying room by attached W6TF-3-6A centrifugal blower, through circulation humidity discharging
After, control timber water content mass percent between 8～13%；
3) temperature 68～72 DEG C, temperature retention time 18～24 hours are kept；
In this step, if temperature is too high, then wood fibre can be caused to burn to death；If temperature is too low, then
Cause wood fibre to be difficult to soften, affect subsequent product quality；Through repeatedly repetition test, holding temperature
It is preferably 72 DEG C；
4) wood dust, plasticity earth and ureaformal dehyde resin glue are carried out proportioning according to following masses portion rate,
Wood dust 80～85 parts
Earth 1～15 parts
Ureaformal dehyde resin glue 1～5 parts
And in mixing tank, above-mentioned dispensing is fully smashed, mix homogeneously；
Cut powder forming technique by wood, according to wood flour, earth, ureaformal dehyde resin glue determine formula proportion, at batch mixing
Rotating with blade cut direction in tank, material accelerates in the gas flow, and repeated stock, makes material be subject to simultaneously
To dual smashing, accelerate the degradation rate of material, make the lignin in wood fibre soften, make microfibre
Combination be easier to, more firm such that it is able to pressure injection forms various different shape body.
In this step 4, wood dust, plasticity earth and ureaformal dehyde resin glue are preferably according to following masses portion rate
Carry out proportioning:
Wood dust 80 parts
15 parts of earth
Ureaformal dehyde resin glue 5 parts
5) at a temperature of 335～350 DEG C, injection-compression molding is carried out by step 4 obtains mixture；
Mixture is extruded through high-speed screw, makes the fine wood fibre secondary bond in wood material,
Form various difformity body；
In this step 5, the temperature of injection-compression molding is preferably 350 DEG C.
6) the injection-compression molding body obtained in step 5 is maintained at 14～16 DEG C to cool down, cool time
22～24 hours.
In this step, the injection-compression molding body to obtaining in step 5 is needed to carry out heat treatment so that it is necessarily
Temperature cools down, to increase its intensity.This chilling temperature is difficult to too high and too low, through the most repeatedly trying
Testing and draw, this chilling temperature is preferably at 14 DEG C, and it is wooden that i.e. obtaining after cooling is regenerated by waste and old wood
Section bar.
See the long profiles mechanics properties testing index that table 1 is different-diameter.
Table 1:
A kind of Waste timber regeneration method of the present invention, by the pulverizing of waste and old wood, proportioning, mold pressing
The technique such as molding, cooled and solidified, carries out the recycling of waste and old wood, and section bar can enter as required
Row difformity, the injection-compression molding of size；Wood fibre, earth, ureaformal dehyde resin glue merge completely, non-friable,
Product after indeformable, pressure injection has good physical and mechanical property, contrasts original product wood quality intensity
Increase by 2～3 times, and have stronger plasticity, elegance durable in use, elegant in appearance, exquisite.
Claims (4)
1. a Waste timber regeneration method, it is characterised in that comprise the following steps:
1) waste and old wood is pulverized, generate wood dust；
2) wood dust is put into drying room, after drying room is warming up to 68～72 DEG C, continuous hot air circulation 90～
96 hours, control wood dust water content mass percent 8～13%；
3) temperature 68～72 DEG C, temperature retention time 18～24 hours are kept；
4) wood dust, plasticity earth and ureaformal dehyde resin glue are carried out proportioning according to following masses portion rate:
Wood dust 80～85 parts
Earth 1～15 parts
Ureaformal dehyde resin glue 1～5 parts
And above-mentioned dispensing is fully smashed, mix homogeneously；
5) at a temperature of 335～350 DEG C, injection-compression molding is carried out by step 4 obtains mixture；
6) the injection-compression molding body obtained in step 5 is maintained at 14～16 DEG C to cool down, cool time
22～24 hours.
2. Waste timber regeneration method as claimed in claim 1, it is characterised in that: described step 4
Middle wood dust, plasticity earth and ureaformal dehyde resin glue carry out proportioning according to following masses portion rate:
Wood dust 80 parts
15 parts of earth
Ureaformal dehyde resin glue 5 parts.
3. Waste timber regeneration method as claimed in claim 1, it is characterised in that: described step 5
In, the temperature of injection-compression molding is 350 DEG C.
4. Waste timber regeneration method as claimed in claim 1, it is characterised in that: described step 6
In, chilling temperature is 14 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310365096.7A CN103419262B (en) | 2013-08-20 | 2013-08-20 | A kind of Waste timber regeneration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310365096.7A CN103419262B (en) | 2013-08-20 | 2013-08-20 | A kind of Waste timber regeneration method |
Publications (2)
| Publication Number | Publication Date |
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| CN103419262A CN103419262A (en) | 2013-12-04 |
| CN103419262B true CN103419262B (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310365096.7A Expired - Fee Related CN103419262B (en) | 2013-08-20 | 2013-08-20 | A kind of Waste timber regeneration method |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098959A (en) * | 2017-12-04 | 2018-06-01 | 东莞市华腾光能环保科技有限公司 | A kind of reclaiming method of waste and old cabinet-wood |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4734236A (en) * | 1985-12-02 | 1988-03-29 | Sheller-Globe Corporation | Method for forming fiber web for compression molding structural substrates for panels |
| WO1997025490A2 (en) * | 1995-12-26 | 1997-07-17 | Hall, Lorne, D. | Fiber panel manufacturing method and apparatus |
| CN1457993A (en) * | 2002-05-12 | 2003-11-26 | 邓章志 | Method for producing handicraft and other product from crushed plant |
| CN1915617A (en) * | 2006-09-08 | 2007-02-21 | 大亚科技股份有限公司 | Method for preparing fibers from waste and timber |
| CN101164746A (en) * | 2006-10-18 | 2008-04-23 | 姜鹏 | Environmental protection regenerative wood residual density board and preparation method thereof |
| CN101337360A (en) * | 2008-07-28 | 2009-01-07 | 杨橙双 | Regeneration artificial board |
| CN102424546A (en) * | 2011-09-13 | 2012-04-25 | 福建省龙岩龙能粉煤灰综合利用有限公司 | Process for preparing bamboo-wood decorative board by using fly ash and product thereof |
| CN102531492A (en) * | 2011-12-30 | 2012-07-04 | 廊坊华日家具股份有限公司 | Cement-based wood fiber artificial board and manufacturing method thereof |
-
2013
- 2013-08-20 CN CN201310365096.7A patent/CN103419262B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4734236A (en) * | 1985-12-02 | 1988-03-29 | Sheller-Globe Corporation | Method for forming fiber web for compression molding structural substrates for panels |
| WO1997025490A2 (en) * | 1995-12-26 | 1997-07-17 | Hall, Lorne, D. | Fiber panel manufacturing method and apparatus |
| US5730830A (en) * | 1995-12-26 | 1998-03-24 | Haddonfield Management Co. Ltd. | Fiber panel manufacturing method and apparatus |
| CN1457993A (en) * | 2002-05-12 | 2003-11-26 | 邓章志 | Method for producing handicraft and other product from crushed plant |
| CN1915617A (en) * | 2006-09-08 | 2007-02-21 | 大亚科技股份有限公司 | Method for preparing fibers from waste and timber |
| CN101164746A (en) * | 2006-10-18 | 2008-04-23 | 姜鹏 | Environmental protection regenerative wood residual density board and preparation method thereof |
| CN101337360A (en) * | 2008-07-28 | 2009-01-07 | 杨橙双 | Regeneration artificial board |
| CN102424546A (en) * | 2011-09-13 | 2012-04-25 | 福建省龙岩龙能粉煤灰综合利用有限公司 | Process for preparing bamboo-wood decorative board by using fly ash and product thereof |
| CN102531492A (en) * | 2011-12-30 | 2012-07-04 | 廊坊华日家具股份有限公司 | Cement-based wood fiber artificial board and manufacturing method thereof |
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| CN103419262A (en) | 2013-12-04 |
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Inventor after: Zheng Shuxin Inventor before: Zheng Shuxin Inventor before: Fang Xiaoyan |
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Free format text: CORRECT: INVENTOR; FROM: ZHENG SHUXIN FANG XIAOYAN TO: ZHENG SHUXIN |
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