CN102390070A - Machining recycling method of wood waste - Google Patents
Machining recycling method of wood waste Download PDFInfo
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- CN102390070A CN102390070A CN2011103072455A CN201110307245A CN102390070A CN 102390070 A CN102390070 A CN 102390070A CN 2011103072455 A CN2011103072455 A CN 2011103072455A CN 201110307245 A CN201110307245 A CN 201110307245A CN 102390070 A CN102390070 A CN 102390070A
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Abstract
The invention provides a machining recycling method of wood waste, comprising the steps of crushing and mixing one or more of unexpected corners and leftover material, saw dust, branches, tree barks, fading leaves and waterlogged tee leaves and the like, adding the material into a metal mould, heating together to 160 DEG C to 200 DEG C, thermally compressing and maintaining the pressure for a certain period, and curing and demoulding. After being compressed and cured, the wood machining waste provided by the invention is hard and has a smooth surface with high compression resistance strength, the density reaches 1.235*103Kg/m<3> to 1.356*103Kg/m<3>. The method provided by the invention has low requirement on manufacturing art and equipment, no chemical adhesive, a complete pure wood product can be manufactured which is safe, clean, environmentally-friendly and can be recycled for secondary use; according to the invention, the problem of environment pollution is solved, recycling of waste is realized; and the method coordinates with recycling economy, meets the inevitable requirement on a conservation-minded society, and has a wide application prospect.
Description
Technical field
The processing that the present invention relates to a kind of timber waste utilizes method again.
Background technology
Timber has and is prone to processing, and intensity is high, heat insulation, insulation and good advantages such as acoustic properties, is a kind of important building and civil use material, has wide usage space.Yet have many problems simultaneously so widely used, for example the use of throwaway chopsticks makes annual a large amount of timber that consumes, disafforestation wantonly, the persecution ecological balance.
Along with the growth stage of the continuous increase of timber consumption figure and timber is longer, imbalance between supply and demand becomes increasingly conspicuous.Improving timber utilization rate is to alleviate the timber imbalance between supply and demand, an important channel of realizing the timber resources sustainable use.China's timber comprehensive utilization ratio only is about 60%, and developed country reaches more than 80%.Timber is adding remaining branch in man-hour, leaf and bark for the first time; Add for the second time tailing and the sawdust that produce man-hour; And the pruning branch of park trees and both sides, pavement trees etc. all directly abandons as discarded object or burns, when directly burning caloric value low, cause the waste resource; Also have a part of timber waste interpolation chemical adhesive is cured the back use, but this woodwork that contains chemical adhesive is unfavorable for that secondary utilizes again, is prone to contaminated environment.Therefore, can make full use of these discarded objects, can guarantee that again method free from environmental pollution, repeatedly recycling has great importance for exploitation.
At present also not about the report of tailing, branch, leaf and the bark of timber waste and the recyclings such as tealeaves of steeping.Application number is that 99113380.3 one Chinese patent application have been announced a kind of composite rice straw board; With wherein a kind of of straw, husk, stalk, sawdust is primary raw material; Be equipped with light burnt powder, modifier and glass, process finished product through series of process such as stirring, injection molding, the oven dry demoulding, alkali treatment, sterilization, curing.That this composite plate has is hard, ageing-resistant, be easy to good characteristic such as processing, though but its operation is simple too loaded down with trivial details, and has added some additives and is difficult for recycling, contaminated environment.Therefore solve timber waste utilize fully again and problem such as prevent the pollution of the environment is one of main task of the present invention.
Summary of the invention
The processing that the objective of the invention is to propose a kind of timber waste utilizes method again.This production technology and equipment requirements are simple, can process the pure woodwork and the block fuel that do not contain any chemical adhesive.
The objective of the invention is to realize in the following manner:
A kind of processing of timber waste utilizes method again, gets timber waste, and is discarded object is broken, put into metal die after mixing, and is heated to 160 ℃～200 ℃ together, carries out hot pressing then, and pressurize release demoulding after 10 minutes～120 minutes; Make the product density after the processing reach 1.235 * 10
3Kg/m
3～1.356 * 10
3Kg/m
3, described timber waste comprises: one or more of the tealeaves that remaining tailing, sawdust, branch, bark, dead leaf and bubble dry later after the Wood Processing.
Particle diameter after the Wood Processing after remaining tailing and the branch fragmentation is not more than 10mm; Be strip after bark and the dead leaf fragmentation, width is not more than 5mm, length is not more than 40mm.
Pressure 80MPa～1000MPa when carrying out hot pressing.
The kind of timber according to the invention is a lot, mainly contains main industrial cut stocks such as China fir, pine tree and willow.
The processing of a kind of timber waste of invention utilizes method again; After timber waste is heated; Make and they are organically mutually combined cellulose, hemicellulose and the lignin activation of timber waste itself be cured.The density of this method compression solidfied material reaches 1.235 * 10
3Kg/m
3～1.356 * 10
3Kg/m
3, considerably beyond the density of narra; The surperficial compression strength of its material has the excellent combination performance more than 45MPa.The problems such as utilization again of in short supply and waste, environmental pollution and the timber resources of timber resources have been overcome to a certain extent.Timber waste can also be pressed into various shapes through different dies and meet the different needs.
Method of the present invention has following advantage: production technology and equipment requirements are simple, and raw material are that the timber waste source is abundant, cost is low; The compression curing materials hundred-percent pure wood that has obtained, but and surperficial compression strength is high, the environment friendly and pollution-free secondary of safety and sanitation utilizes again, meet the requirement of modern green material fully; Improve the utilization rate of timber resources, solved timber resources problem in short supply to a certain extent.Can be used for fields such as daily necessities, handicraft and block fuel.
Description of drawings
Fig. 1, be the sketch map of metal die;
1 is die; 2 is pad; 3 is punch, and 4 is timber waste;
Fig. 2 is before the embodiment 1 discarded object compression, after photo;
A is the photo before the compression of embodiment 1 discarded object;
B is the photo after the compression of embodiment 1 discarded object;
Fig. 3 is before the embodiment 2 discarded objects compressions, after photo;
A is the photo before the compression of embodiment 2 discarded objects;
B is the photo after the compression of embodiment 2 discarded objects;
Fig. 4 is before the embodiment 3 discarded objects compressions, after photo;
A is the photo before the compression of embodiment 3 discarded objects;
B is the photo after the compression of embodiment 3 discarded objects;
Fig. 5 is before the embodiment 4 discarded objects compressions, after photo;
A is the photo before the compression of embodiment 4 discarded objects;
B is the photo after the compression of embodiment 4 discarded objects;
Fig. 6 is before the embodiment 5 discarded objects compressions, after photo;
A is the photo before the compression of embodiment 5 discarded objects;
B is the photo after the compression of embodiment 5 discarded objects;
Fig. 7 is before the embodiment 6 discarded objects compressions, after photo;
A is the photo before the compression of embodiment 6 discarded objects;
B is the photo after the compression of embodiment 6 discarded objects.
The specific embodiment
Be intended to further specify the present invention below in conjunction with embodiment, and unrestricted the present invention.
Present embodiment utilizes the Chinese fir sawdust to be raw material, and the 100g sawdust is added in the die cavity 4 that metal die 1,2 and 3 surrounded, and is heated to 165 ℃ together, then it is carried out hot-press solidifying, and the pressure during compression is 195MPa, and pressurize is the release demoulding after 20 minutes.Shown in Fig. 2 (b), its material surface compression strength 48MPa, hard and smooth surface.Its density reaches 1.291 * 10
3Kg/m
3
Present embodiment utilizes leaf to be raw material, in the die cavity 4 that adding metal die 1,2 and 3 is surrounded after the fragmentation of 50g leaf, is heated to 185 ℃ together, then it is carried out hot-press solidifying, and the pressure during compression is 195MPa, and pressurize is the release demoulding after 20 minutes.Shown in Fig. 3 (b), its material surface compression strength 56MPa, hard and smooth surface.Its density reaches 1.328 * 10
3Kg/m
3
Present embodiment utilizes the Chinese fir bark to be raw material, in the die cavity 4 that adding metal die 1,2 and 3 is surrounded after the fragmentation of 50g bark, is heated to 185 ℃ together, then it is carried out hot-press solidifying, and the pressure during compression is 195MPa, and pressurize is the release demoulding after 20 minutes.Shown in Fig. 4 (b), its material surface compression strength 58MPa, hard and smooth surface.Its density reaches 1.307 * 10
3Kg/m
3
The tealeaves that the present embodiment utilization was steeped is raw material; In the die cavity 4 that the tealeaves adding metal die 1,2 and 3 that 50g was steeped is surrounded, be heated to 185 ℃ together, then it carried out hot-press solidifying; Pressure during compression is 195MPa, and pressurize is the release demoulding after 20 minutes.Shown in Fig. 5 (b), its material surface compression strength 50MPa, hard and smooth surface.Its density reaches 1.356 * 10
3Kg/m
3
Embodiment 5
Present embodiment utilizes sawdust of Chinese fir and bark to be raw material; 100g sawdust and bark is broken, mix the back and add in the die cavity 4 that metal die 1,2 and 3 surrounded; Be heated to 185 ℃ together; Then it is carried out hot-press solidifying, the pressure during compression is 195MPa, and pressurize is the release demoulding after 20 minutes.Shown in Fig. 6 (b), its material surface intensity compression strength 61MPa, hard and smooth surface.Its density reaches 1.246 * 10
3Kg/m
3
Embodiment 6
Present embodiment utilizes the pine tree sawdust to be raw material, and the 50g sawdust is added in the die cavity 4 that metal die 1,2 and 3 surrounded, and is heated to 185 ℃ together, then it is carried out hot-press solidifying, and the pressure during compression is 80MPa, and pressurize is the release demoulding after 120 minutes.Shown in Fig. 7 (b), its material surface compression strength 45MPa, hard and smooth surface.Its density reaches 1.235 * 10
3Kg/m
3
Claims (3)
1. the processing of a timber waste utilizes method again, it is characterized in that, gets timber waste; Discarded object is broken, put into metal die after mixing; Be heated to 160 ℃～200 ℃ together, carry out hot pressing then, and pressurize release demoulding after 10 minutes～120 minutes; Make the product density after the processing reach 1.235 * 10
3Kg/m
3～1.356 * 10
3Kg/m
3, described timber waste comprises: one or more of the tealeaves that remaining tailing, sawdust, branch, bark, dead leaf and bubble dry later after the Wood Processing.
2. method according to claim 1 is characterized in that, the particle diameter after the Wood Processing after remaining tailing and the branch fragmentation is not more than 10mm; Be strip after bark and the dead leaf fragmentation, width is not more than 5mm, length is not more than 40mm.
3. method according to claim 1 and 2 is characterized in that, the pressure 80MPa～1000MPa when carrying out hot pressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103072455A CN102390070A (en) | 2011-10-12 | 2011-10-12 | Machining recycling method of wood waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103072455A CN102390070A (en) | 2011-10-12 | 2011-10-12 | Machining recycling method of wood waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102390070A true CN102390070A (en) | 2012-03-28 |
Family
ID=45857520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103072455A Pending CN102390070A (en) | 2011-10-12 | 2011-10-12 | Machining recycling method of wood waste |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102390070A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722598A (en) * | 2012-10-12 | 2014-04-16 | 仙游县金钟乐器有限公司 | Wood leftover recycling method |
| CN107520931A (en) * | 2017-09-21 | 2017-12-29 | 北京林业大学 | One kind covering exposed soil ecological fiber plate and preparation method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5968225A (en) * | 1982-10-14 | 1984-04-18 | Sanyo Kokusaku Pulp Co Ltd | Three-layered particle board |
| RU2044636C1 (en) * | 1994-06-15 | 1995-09-27 | Людмила Олеговна Бунина | Method of making the molding materials of waste products of wood-working and wood reprocessing of waste products of other vegetable raw materials or their mixtures |
| JP2001191307A (en) * | 2000-01-14 | 2001-07-17 | Shigenori Matsumoto | Method for solidifying wood bark, wood waste and the like |
| CN101181793A (en) * | 2007-12-07 | 2008-05-21 | 北京林业大学 | Adding material for medium density fiberboard, medium density fiberboard and preparation method thereof |
| CN101357469A (en) * | 2007-08-02 | 2009-02-04 | 吉发 | Production method of medium-density fiberboard using waste and old wood |
| CN101579879A (en) * | 2009-06-11 | 2009-11-18 | 中国林业科学研究院木材工业研究所 | High-performance wood restructuring laminated wood and manufacturing method thereof |
| CN101756611A (en) * | 2008-12-23 | 2010-06-30 | 洪伙金 | Manufacturing method for environmentally-friendly tea tray molded by single-pressing |
| CN102039623A (en) * | 2009-10-14 | 2011-05-04 | 中南林业科技大学 | Method for producing rubber-free man-made carbonized wood |
| CN102172949A (en) * | 2011-01-17 | 2011-09-07 | 吴庆定 | Production method for high-density environment-friendly wood material |
-
2011
- 2011-10-12 CN CN2011103072455A patent/CN102390070A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5968225A (en) * | 1982-10-14 | 1984-04-18 | Sanyo Kokusaku Pulp Co Ltd | Three-layered particle board |
| RU2044636C1 (en) * | 1994-06-15 | 1995-09-27 | Людмила Олеговна Бунина | Method of making the molding materials of waste products of wood-working and wood reprocessing of waste products of other vegetable raw materials or their mixtures |
| JP2001191307A (en) * | 2000-01-14 | 2001-07-17 | Shigenori Matsumoto | Method for solidifying wood bark, wood waste and the like |
| CN101357469A (en) * | 2007-08-02 | 2009-02-04 | 吉发 | Production method of medium-density fiberboard using waste and old wood |
| CN101181793A (en) * | 2007-12-07 | 2008-05-21 | 北京林业大学 | Adding material for medium density fiberboard, medium density fiberboard and preparation method thereof |
| CN101756611A (en) * | 2008-12-23 | 2010-06-30 | 洪伙金 | Manufacturing method for environmentally-friendly tea tray molded by single-pressing |
| CN101579879A (en) * | 2009-06-11 | 2009-11-18 | 中国林业科学研究院木材工业研究所 | High-performance wood restructuring laminated wood and manufacturing method thereof |
| CN102039623A (en) * | 2009-10-14 | 2011-05-04 | 中南林业科技大学 | Method for producing rubber-free man-made carbonized wood |
| CN102172949A (en) * | 2011-01-17 | 2011-09-07 | 吴庆定 | Production method for high-density environment-friendly wood material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722598A (en) * | 2012-10-12 | 2014-04-16 | 仙游县金钟乐器有限公司 | Wood leftover recycling method |
| CN107520931A (en) * | 2017-09-21 | 2017-12-29 | 北京林业大学 | One kind covering exposed soil ecological fiber plate and preparation method thereof |
| CN107520931B (en) * | 2017-09-21 | 2020-02-21 | 北京林业大学 | Ecological fiberboard for covering bare soil and preparation method thereof |
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Application publication date: 20120328 |