CN103770190A - Method for manufacturing plates through wheat straw - Google Patents
Method for manufacturing plates through wheat straw Download PDFInfo
- Publication number
- CN103770190A CN103770190A CN201210403089.7A CN201210403089A CN103770190A CN 103770190 A CN103770190 A CN 103770190A CN 201210403089 A CN201210403089 A CN 201210403089A CN 103770190 A CN103770190 A CN 103770190A
- Authority
- CN
- China
- Prior art keywords
- wheat straw
- component
- sheet material
- plates
- agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 241000209140 Triticum Species 0.000 title claims abstract description 26
- 235000021307 Triticum Nutrition 0.000 title claims abstract description 26
- 239000010902 straw Substances 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 4
- 238000007731 hot pressing Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 18
- 239000011230 binding agent Substances 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 3
- 239000000470 constituent Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims 3
- 238000001035 drying Methods 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 abstract description 2
- 238000005498 polishing Methods 0.000 abstract description 2
- 238000005452 bending Methods 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
- 238000013467 fragmentation Methods 0.000 description 4
- 238000006062 fragmentation reaction Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 3
- 244000269722 Thea sinensis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Dry Formation Of Fiberboard And The Like (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention relates to a method for manufacturing plates through wheat straw. Broken wheat straw is composited into wheat straw plates through crushing sorting, drying, gluing, pre-press forming, hot pressing, edge cutting and polishing and sanding. Compared with shaving plates, the plates manufactured through the method have the advantages of being simple in process, good in surface smoothness, environmentally friendly, high in static bending intensity, wide in application and capable of being used for ceilings, door core plates, furniture and the like.
Description
Technical field
The present invention relates to a kind of method of manufacturing sheet material with Wheat Straw, especially a kind of process with Wheat Straw manufacture building and board for furniture material.
Background technology
At present, due to the protection of various countries to environment and the forest reserves, progressively restriction adopts timber processing artificial boards, but society continuing to increase the demand of wood-based plate, and therefore, people more and more pay close attention to the substitute problem of timber.But still using in a large number on the market particieboard at present, its raw material sources limit to, cost is high; Wheat Straw belongs to renewable resource, all can produce a large amount of Wheat Straws every year, also can be burnt by people in some economic areas, causes a kind of pollution, causes again waste resource, increases its economic value added and becomes current urgent problem.Therefore develop take Wheat Straw as raw material manufacture building and Furniture panel is one of the effective way that solves this contradiction.
Summary of the invention
The object of this invention is to provide a kind of sufficient raw, cost is low, technique is simple, physics characteristic, surface quality be higher than the manufacturing method of plate thereof of particieboard, i.e. a kind of method of manufacturing sheet material with Wheat Straw.
The present invention reaches by following measure:
By the Wheat Straw reclaiming, carry out fragmentation and selection by winnowing with feed grinder and winnowing machine, moisture before fragmentation is not higher than 31%, require the fibre length of broken rear sorting in 28mm, wherein 8～28mm component is not less than 80%, then Wheat Straw and binding agent after processing, (72～76) by weight: mix (13～17), make slab through uniform stirring, slab is pressurizeed under the condition of 130～150 ℃ of temperature, and kept for 45～60 seconds, its pressure changes with the variation of slab area, generally remain on 1.53～2.65MPa, binding agent is selected aldehyde-free water-based glutinous agent, wherein aldehyde-free water-based glutinous agent is the agent of bi-component gluing, A component is solid, by polyvinyl alcohol (PVA), carboxymethyl cellulose, sodium metasilicate composition, B component is liquid, is the solution containing methyl diphenylene diisocyanate (MDI), when use, first solid constituent (A component) is used to hot water dissolving, then will under two component room temperatures, mix by a certain percentage.
Beneficial effect of the present invention is:
The present invention adopts a kind of method of manufacturing sheet material with Wheat Straw, compared with particieboard, there is surface smoothness good, advantage elegant in appearance, MOR is higher, and of many uses, can be as building floor, ceiling, partition wall, door panel, sound panel, composite furniture and tea table face, can replace timber in some fields, its raw material Wheat Straw source is sufficient, cheap.The advantages such as process of the present invention is simple.
The specific embodiment
Embodiment
By the Wheat Straw reclaiming, carry out fragmentation and selection by winnowing with feed grinder and winnowing machine, if Wheat Straw moisture is more before the moisture before fragmentation is not broken higher than 31%(, can first screen), require broken after the fibre length of sorting in 28mm, wherein 8～28mm component is not less than 80%, by well-graded material by blast system to drying machine drying, moisture after oven dry is controlled at 4%～8%, and the material after oven dry is for subsequent use to raw material depots by blast system.Material depots material is delivered in glue mixer and stirred with binding agent by wind conveyer, stir and want evenly, then the material stirring is delivered to spreading machine by conveyer, paving prefabricating on metal alloy backing plate, in hot press, carry out hot pressing and pressurize by delivering to the good blank of backing plate paving prefabricating, hot pressing temperature is controlled at 130～150 ℃, pressure is controlled at 1.53～2.65MPa, dwell time was controlled at for 45～60 seconds, so that binding agent is completely curing, by cooling the sheet material of moulding, deliver to edge cutting machine and carry out trimming processing, product is met the requirements of after physical dimension, product is delivered to stacking place, again through polishing sanding processing, obtain Wheat Straw sheet material finished product, finished product can also be carried out to deep processing processing.
Described binding agent is selected aldehyde-free water-based glutinous agent, and wherein aldehyde-free water-based glutinous agent is the agent of bi-component gluing, and A component is solid, is made up of polyvinyl alcohol (PVA), carboxymethyl cellulose, sodium metasilicate; B component is liquid, is the solution containing methyl diphenylene diisocyanate (MDI); When use, first solid constituent (A component) is used to hot water dissolving, then will under two component room temperatures, mix by a certain percentage.
Utilize above-mentioned technique manufacturing method, select after the series of process such as Wheat Straw and binding agent step process, can production density be the sheet material between 0.3-0.8g/cm3, density be low-density plank between 0.3-0.55g/cm3, can do door panel, abatvoix, wall heat insulation material etc.; Density between 0.55-0.8 g/cm3 for medium-density plate can be used as furniture, the purposes such as cabinet.
Although the present invention is described by reference to preferred embodiment,, those of ordinary skills should understand; can be not limited to the description of above-described embodiment; in the scope of claims, can do the various variations in form and details, within all belonging to protection scope of the present invention.
Claims (4)
1. manufacture the method for sheet material with Wheat Straw, comprise by the Wheat Straw of pulverizing and binding agent through series of process processing, it is characterized in that: the Wheat Straw of pulverizing is (72～76) with the part by weight of binding agent: mix (13～17); Hot pressing temperature is at 130～150 ℃, and pressure is 1.53～2.65MPa, and the dwell time was 45～60 seconds.
2. a kind of method of manufacturing sheet material with Wheat Straw according to claim 1, it is characterized in that: manufacture sheet material binding agent used, select aldehyde-free water-based glutinous agent, wherein aldehyde-free water-based glutinous agent is the agent of bi-component gluing, A component is solid, is made up of polyvinyl alcohol (PVA), carboxymethyl cellulose, sodium metasilicate; B component is liquid, is the solution containing methyl diphenylene diisocyanate (MDI); When use, first solid constituent is used to hot water dissolving, then will under two component room temperatures, mix by a certain percentage.
3. according to a kind of method of manufacturing sheet material with Wheat Straw described in claim 1,2, it is characterized in that: the fibre length after sorting is in 28mm, and wherein 8～28mm component is not less than 80%.
4. a kind of method of manufacturing sheet material with Wheat Straw according to claim 3, is characterized in that: the moisture after the Wheat Straw after pulverizing is dried is controlled at 4%～8%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210403089.7A CN103770190A (en) | 2012-10-22 | 2012-10-22 | Method for manufacturing plates through wheat straw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210403089.7A CN103770190A (en) | 2012-10-22 | 2012-10-22 | Method for manufacturing plates through wheat straw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103770190A true CN103770190A (en) | 2014-05-07 |
Family
ID=50563187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210403089.7A Pending CN103770190A (en) | 2012-10-22 | 2012-10-22 | Method for manufacturing plates through wheat straw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103770190A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106808555A (en) * | 2015-11-27 | 2017-06-09 | 迪芬巴赫机械工程有限公司 | Method and apparatus and multilayered material sheet for producing multilayered material sheet |
| CN107471380A (en) * | 2017-08-23 | 2017-12-15 | 北京林业大学 | Laminated particle-board and preparation method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1227154A (en) * | 1999-01-22 | 1999-09-01 | 南京林业大学 | Method for producing wheat straw flakeboard |
| CN1569420A (en) * | 2004-05-11 | 2005-01-26 | 南京林业大学 | Manufacturing method for packing filling pillow made from crop straw |
| JP2005074675A (en) * | 2003-08-28 | 2005-03-24 | Sekisui Chem Co Ltd | Manufacturing method for woody composite material |
| CN1631632A (en) * | 2004-12-23 | 2005-06-29 | 南京林业大学 | Manufacturing method for industrial production of wheat (rice) straw particle board |
| CN1785624A (en) * | 2005-10-28 | 2006-06-14 | 南京林业大学 | Industrial production method of formaldehyde-free thin rice straw board |
| CN1861348A (en) * | 2006-06-20 | 2006-11-15 | 江苏大盛板业有限公司 | Method for producing aldehyde-free soft board made of wheat straw |
| CN101148056A (en) * | 2007-11-13 | 2008-03-26 | 江苏鼎元科技发展有限公司 | Formaldehyde-less composite stalk board production technology method and use |
| JP4108470B2 (en) * | 2002-12-27 | 2008-06-25 | 三井化学ポリウレタン株式会社 | Board and board manufacturing method |
| CN101591520A (en) * | 2009-05-21 | 2009-12-02 | 沈阳建筑大学 | A kind of formaldehyde-free water-based adhesive for straw board |
| CN102443369A (en) * | 2011-10-31 | 2012-05-09 | 东莞市山力高分子材料科研有限公司 | Wood adhesive and preparation method thereof |
-
2012
- 2012-10-22 CN CN201210403089.7A patent/CN103770190A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1227154A (en) * | 1999-01-22 | 1999-09-01 | 南京林业大学 | Method for producing wheat straw flakeboard |
| JP4108470B2 (en) * | 2002-12-27 | 2008-06-25 | 三井化学ポリウレタン株式会社 | Board and board manufacturing method |
| JP2005074675A (en) * | 2003-08-28 | 2005-03-24 | Sekisui Chem Co Ltd | Manufacturing method for woody composite material |
| CN1569420A (en) * | 2004-05-11 | 2005-01-26 | 南京林业大学 | Manufacturing method for packing filling pillow made from crop straw |
| CN1631632A (en) * | 2004-12-23 | 2005-06-29 | 南京林业大学 | Manufacturing method for industrial production of wheat (rice) straw particle board |
| CN1785624A (en) * | 2005-10-28 | 2006-06-14 | 南京林业大学 | Industrial production method of formaldehyde-free thin rice straw board |
| CN1861348A (en) * | 2006-06-20 | 2006-11-15 | 江苏大盛板业有限公司 | Method for producing aldehyde-free soft board made of wheat straw |
| CN101148056A (en) * | 2007-11-13 | 2008-03-26 | 江苏鼎元科技发展有限公司 | Formaldehyde-less composite stalk board production technology method and use |
| CN101591520A (en) * | 2009-05-21 | 2009-12-02 | 沈阳建筑大学 | A kind of formaldehyde-free water-based adhesive for straw board |
| CN102443369A (en) * | 2011-10-31 | 2012-05-09 | 东莞市山力高分子材料科研有限公司 | Wood adhesive and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106808555A (en) * | 2015-11-27 | 2017-06-09 | 迪芬巴赫机械工程有限公司 | Method and apparatus and multilayered material sheet for producing multilayered material sheet |
| CN106808555B (en) * | 2015-11-27 | 2023-03-03 | 迪芬巴赫机械工程有限公司 | Method and device for producing a multilayered material sheet and material sheet |
| CN107471380A (en) * | 2017-08-23 | 2017-12-15 | 北京林业大学 | Laminated particle-board and preparation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140507 |