CN104369251A - Manufacturing method cotton straw composite artificial board - Google Patents
Manufacturing method cotton straw composite artificial board Download PDFInfo
- Publication number
- CN104369251A CN104369251A CN201310351944.9A CN201310351944A CN104369251A CN 104369251 A CN104369251 A CN 104369251A CN 201310351944 A CN201310351944 A CN 201310351944A CN 104369251 A CN104369251 A CN 104369251A
- Authority
- CN
- China
- Prior art keywords
- cotton stalk
- hot pressing
- applying glue
- waterproofing agent
- glue
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention provides a manufacturing method of a cotton straw composite artificial board. The method has the advantages that the homogeneous particleboard and fiberboard of the composite artificial board are produced by using cotton straw as main raw material, timber as auxiliary raw material and urea resin or melamine modified urea resin as adhesives, the cotton straw does not form hemp-shaped fiber agglomerates during board manufacturing, and the water absorption thickness swelling rate of the manufactured particleboard and fiberboard meets the requirements.
Description
Technical field
The present invention relates to a kind of manufacture method of cotton stalk composite artificial board.
Background technology
Cotton stalk is the residue of Cotton Production, and China produces cotton stalk about 2,000 ten thousand tons every year and is mainly used as fuel at present, and a large amount of cotton stalks does not obtain efficiency utilization.Cotton stalk mainly contains cellulose, hemicellulose and lignin composition, is similar to the chemical composition of broadleaf.Due to the current timber resource shortage of China, there is lack of raw materials for the production of fiberboard and particieboard for wood-based panel industry, if therefore cotton stalk can be used for the production of wood-based plate, not only can solve the problem of China's wood-based plate commercial wood raw material resources shortage, and searched out outlet for the efficiency utilization of cotton stalk, add the income in vast farmers land area of one unit.
China once adopted cotton stalk to be used for the raw materials for production of particieboard and the raw materials for production of wet-process fiber board in the latter stage eighties, had no and produced dry medium density fibreboard with cotton stalk.But stop production one after another afterwards, again change adopting timber to be raw material, mainly relevant technology does not solve.Its technical problem underlying has two: one to be form numb shape coma, not only occluding device and transport pipeline because the crust containing a large amount of bast fiber of cotton stalk not easily cuts off when slicing wood shavings, and easily on fire and applying glue is mated formation difficulty; Two is that the particieboard of cotton stalk production and the thickness swelling rate of fiberboard are difficult to reach requirement, and above-mentioned two technical problem underlying cause China to there is no the artificial board enterprise of an employing cotton stalk as raw materials for production.
Summary of the invention
The object of this invention is to provide a kind of manufacture method of cotton stalk composite artificial board, with crops cotton stalk for primary raw material, take timber as auxiliary material, Lauxite or cyanurotriamide modified urea resin is adopted to be adhesive, produce a kind of homogeneous chipboard and fiberboard of composite artificial board, and cotton stalk can not form numb shape coma in solution manufacturing process, the particieboard of production and the thickness swelling rate of fiberboard reach requirement.
The present invention is to provide a kind of manufacture method of composite building board from wood based cotton stalk, and its step is,
One, cotton stalk cuts off, and by the moisture control of cotton stalk after 18-20%, being cut into length is that the segment of 1.5-2.5cm is for subsequent use;
Moisture content is the cotton stalk section of 18-20% by two, flaking, and adopt pulverizer to make wood shavings particle, its length is 3-25mm, and width is 1-10mm, and thickness is 3-5mm;
Three, dry, adopt air-flowing type drying means and cylindrical drier, carry out drying to cotton stalk wood shavings particle, baking temperature scope is 90-150 DEG C, and dry final moisture content is 3-5%;
Four, screen, dried cotton stalk is sent into siccative storehouse, dried wooden shavings particle 1:3-3:1 ratio on request and cotton stalk wood shavings particle Homogeneous phase mixing;
Five, applying glue, the cotton stalk of mixing and the even applying glue of compound of wooden shavings particle are glued together, add waterproofing agent, the applying glue ratio of urea-formaldehyde glue or melamine modified urea-formaldehyde glue is 8-12%; The applied amount of waterproofing agent is 0.5-2%;
Six, mat formation, the compound after applying glue is mated formation into the slab thickness of requirement;
Seven, hot pressing, the slab paved is carried out hot pressing, and hot pressing temperature controls at 160-200 DEG C, hot pressing pressure at 2-3.5Mpa, hot pressing time be 15-30 second/mm sheet metal thickness;
Eight, cutting edge, forms a kind of particieboard product.
The present invention is to provide a kind of manufacture method of cotton stalk composite artificial board, the steps include:
One, cotton stalk cuts off, and by the moisture control of cotton straw pavilion after 18-20%, being cut into length is that the segment of 1.5-2.5cm is for subsequent use;
Moisture content is the cotton stalk section of 18-20% by two, flaking, and adopt ring flaker or beater grinder to make wood shavings particle, its length 3-25mm, width is 1-10mm, and thickness is 3-5mm;
Three, dry, adopt air-flowing type drying means and cylindrical drier, carry out drying to cotton stalk wood shavings particle, baking temperature scope is 90-150 DEG C, and dry final moisture content is 3-5%;
Four, screen, dried cotton stalk is sent into siccative storehouse, dried wooden shavings particle, 1:3-3:1 ratio on request and cotton stalk wood shavings particle Homogeneous phase mixing;
Five, applying glue, by cotton stalk wood shavings particle and wooden shavings particle, add waterproofing agent by difference applying glue gummed, the applying glue ratio of urea-formaldehyde glue or melamine modified urea-formaldehyde glue is 8-12%; The applied amount of waterproofing agent is mix in timber cotton stalk wood shavings ratio on request after 0.5-2%;
Six, mat formation, the compound after applying glue is mated formation into the slab thickness of requirement;
Seven, hot pressing, the slab paved is carried out hot pressing, and hot pressing temperature controls at 160-200 DEG C, hot pressing pressure at 2-3.5Mpa, hot pressing time be 12-30 second/mm sheet metal thickness;
Eight, cutting edge, forms a kind of particieboard product.
The present invention can utilize cotton stalk fully, to alleviate timber resources anxiety, maintains the ecological balance, protection of the environment, and makes the manufacturing cost of particieboard and fibreboard product reduce 10-20%.
Detailed description of the invention
The first embodiment of the present invention is a kind of manufacture method of particieboard:
One, cotton stalk cuts off: by the moisture control of cotton stalk after 18-20%, and being cut into length is that the segment of 1.5-2.5cm is for subsequent use.
Two, flaking: be that the cotton stalk section of 18-20% adopts ring flaker or beater grinder to make wood shavings particle by moisture content, its length is 3-25mm, and width is 1-10mm, and thickness is 3-5mm.
Three, dry: adopt air-flowing type drying means and cylindrical drier, carry out drying to cotton stalk wood shavings particle, baking temperature scope is 90-150 DEG C, dry final moisture content is 3-5%.
Four, screen: dried cotton stalk is sent into siccative storehouse, dried wooden shavings particle, can 1:3-3:1 and cotton stalk wood shavings particle Homogeneous phase mixing by the ratio of the required.
Five, applying glue: the cotton stalk of mixing and the even applying glue of compound of wooden shavings particle are glued together and add waterproofing agent, the applying glue ratio of urea-formaldehyde glue or melamine modified urea-formaldehyde glue is 8-12%; The applied amount of waterproofing agent is 0.5-2%.
Six, mat formation: the slab thickness of the compound after applying glue being mated formation into requirement, air-flowing type method for paving or air-flow mechanical formula method for paving (all belonging to routine techniques) can be adopted.
Seven, hot pressing: the slab paved is sent into multidaylight press, carried out hot pressing, and hot pressing temperature controls at 160-200 DEG C; Hot pressing pressure is at 2-3.5MPa; Hot pressing time be 15-30 second/mm sheet metal thickness.
Eight, cutting edge: form a kind of particieboard product.
The second embodiment of the present invention is the manufacture method of another kind of particieboard:
One, cotton stalk cuts off: by the moisture control of cotton stalk after 18-20%, and being cut into length is that the segment of 1.5-2.5cm is for subsequent use.
Two, flaking: be that the cotton stalk section of 15-20% adopts ring flaker or beater grinder to make wood shavings particle by moisture content, its length is 3-25mm, and width is 1-10mm, and thickness is 3-5mm.
Three, dry: adopt air-flowing type drying means and cylindrical drier to carry out drying to cotton stalk wood shavings particle, baking temperature scope is 90-150 DEG C, dry final moisture content is 3-5%.
Four, screen: dried cotton stalk is sent into siccative storehouse, dried wooden shavings particle, can 1:3-3:1 and cotton stalk wood shavings particle Homogeneous phase mixing by the ratio of the required at this moment.
Five, applying glue: cotton stalk wood shavings particle and wooden shavings particle glued together by applying glue respectively and add waterproofing agent, the applying glue ratio of urea-formaldehyde glue or melamine modified urea-formaldehyde glue is 8-12%; The applied amount of waterproofing agent is after 0.5-2%; Mix in timber cotton stalk wood shavings ratio on request.
Six, mat formation: the slab thickness of the compound after applying glue being mated formation into requirement, air-flowing type method for paving or air-flow mechanical formula method for paving (all belonging to routine techniques) can be adopted.
Seven, hot pressing: the slab paved is sent into multidaylight press or single drylight presses or continuous flow press and carries out hot pressing, hot pressing temperature controls at 160-200 DEG C; Hot pressing pressure is at 2-3.5MPa; Hot pressing time be 15-30 second/mm sheet metal thickness.
Eight, cutting edge, forms another kind of particieboard product.
The present invention's advantage compared with prior art:
1, the cotton stalk adopting a kind of wide material sources cheap is as raw materials for production.
2, by the moisture control of raw material and the control of cotton stalk shearing length, the impact of cotton stalk bast fiber on wood shavings preparation and heat grinding slurry technique is eliminated.
3, by by timber and cotton stalk manufacture particieboard used in combination and fiberboard, solve the technical problem that can only adopt single raw material making sheet, two kinds of raw materials are complemented one another, improve the simple too high problem of cotton stalk water absorption rate.
The present invention solves above-mentioned two problems by adopting new technique:
The first, solve cotton stalk phloem fiber by moisture content when controlling straw pavilion shearing length and slicing wood shavings and affect production problem, specifically be implemented as follows: adopt drum-type cutting machine and special chaffcutter to be cut into length at 1.5-2.5cm, moisture content during cut-out must control at 15-20%, then moisture content is strictly controlled when flaking at 15-20%, the wood shavings of such manufacture in process of production, can be eliminated and cause the phenomenon of producing difficulty by the conglomeration of cotton stalk bast fiber.
The second, by being mixed into the method for wooden shavings and lumber fibre in the wood shavings or fiber of cotton stalk, solve the simple problem using producing fibre from cotton stalk to affect sheet material physical property, the ratio (1:3-3:1) that wood particle and fiber mix with cotton stalk wood shavings and fibre.
Claims (3)
1. the manufacture method of a cotton stalk composite artificial board, the step of its feature is: one, cotton stalk cuts off, by the moisture control of cotton stalk after 18-20%, being cut into length is that the segment of 1.5-2.5cm is for subsequent use, two, flaking, and be the cotton stalk section of 18-20% by moisture content, pulverizer is adopted to make wood shavings particle, its length is 3-25mm, and width is 1-10mm, and thickness is 3-5mm; Three, dry, adopt air-flowing type drying means and cylindrical drier, drying is carried out to cotton stalk wood shavings particle, baking temperature scope is 90-150 DEG C, dry final moisture content is 3-5%, four, screen, dried cotton stalk is sent into siccative storehouse, dried wooden shavings particle 1:3-3:1 ratio on request and cotton stalk wood shavings particle Homogeneous phase mixing, five, applying glue, the cotton stalk of mixing and the even applying glue of compound of wooden shavings particle are glued together, add waterproofing agent, the applying glue ratio of urea-formaldehyde glue or melamine modified urea-formaldehyde glue is 8-12%; The applied amount of waterproofing agent is 0.5-4%, six, mat formation, compound after applying glue is mated formation into the slab thickness of requirement, seven, hot pressing, the slab paved is carried out hot pressing, and hot pressing temperature controls at 160-200 DEG C, hot pressing pressure is at 2-3.5Mpa, hot pressing time be 12-30 second/mm sheet metal thickness, eight, cutting edge, form a kind of particieboard product.
2. according to the manufacture method of cotton stalk composite artificial board according to claim 1, it is characterized by: in described step 2, flaking adopts ring flaker or beater grinder to make wood shavings particle; In described step 5 Process of Applying Glue, by cotton stalk wood shavings particle and wooden shavings particle, by difference applying glue gummed, add waterproofing agent, the applying glue ratio of urea-formaldehyde glue or melamine modified urea-formaldehyde glue is 8-12%; The applied amount of waterproofing agent is 0.5-2%, and then, then timber cotton stalk wood shavings ratio on request mixes.
3. a manufacture method for cotton stalk composite artificial board, the step of its feature is, one, cotton stalk cuts off, by the moisture control of cotton stalk after 18-20%, being cut into length is that the segment of 1.5-2.5cm is for subsequent use; Two, defibrator process, the cotton stalk after cutting off on request and wood chip by the ratio of the required 1:3-3:1 mix and carry out heat grinding slurry, and the steam pressure of defibrator is 2-5kg/cm2, and prepared fibre length is 0.3-4mm; Three, applying glue is dry, and adopt the defibrator process after dryer sizing method synchronous with drying to carry out, waterproofing agent also applies at this moment; Resin added and the waterproofing agent applied amount of cotton stalk are respectively 10-14% and 1-2%, and resin added and the waterproofing agent applied amount of lumber fibre are respectively 8-12% and 0.5-1%, and the moisture content of the fiber after applying glue is dried to 8-12%; Four, mat formation, compound dried after applying glue is mated formation into the slab thickness of requirement; Five, hot pressing, hot pressing temperature 160-200 DEG C; Hot pressing pressure 2.5-4MPa; Hot pressing time be 15-30 second/mm; Six, cutting edge, forms a kind of fibreboard product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310351944.9A CN104369251A (en) | 2013-08-14 | 2013-08-14 | Manufacturing method cotton straw composite artificial board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310351944.9A CN104369251A (en) | 2013-08-14 | 2013-08-14 | Manufacturing method cotton straw composite artificial board |
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| Publication Number | Publication Date |
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| CN104369251A true CN104369251A (en) | 2015-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310351944.9A Pending CN104369251A (en) | 2013-08-14 | 2013-08-14 | Manufacturing method cotton straw composite artificial board |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105235044A (en) * | 2014-07-09 | 2016-01-13 | 高云 | Manufacturing method for wood-based cotton stalk composite artificial board |
| CN105345911A (en) * | 2015-09-30 | 2016-02-24 | 信阳美丽真好秸秆新材科技有限公司 | Flame-retardant straw shaving board and manufacturing method thereof |
| CN107322747A (en) * | 2017-06-14 | 2017-11-07 | 杭州沛诺包装科技有限公司 | A kind of processing method of the molded tray of the material based on cotton stalk |
| CN109227859A (en) * | 2018-10-18 | 2019-01-18 | 上海景新信息科技有限公司 | A kind of manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel |
| CN110900778A (en) * | 2019-12-16 | 2020-03-24 | 清华大学 | Plant fiber artificial board and preparation method and application thereof |
-
2013
- 2013-08-14 CN CN201310351944.9A patent/CN104369251A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105235044A (en) * | 2014-07-09 | 2016-01-13 | 高云 | Manufacturing method for wood-based cotton stalk composite artificial board |
| CN105345911A (en) * | 2015-09-30 | 2016-02-24 | 信阳美丽真好秸秆新材科技有限公司 | Flame-retardant straw shaving board and manufacturing method thereof |
| CN107322747A (en) * | 2017-06-14 | 2017-11-07 | 杭州沛诺包装科技有限公司 | A kind of processing method of the molded tray of the material based on cotton stalk |
| CN107322747B (en) * | 2017-06-14 | 2019-05-17 | 杭州沛诺包装科技有限公司 | A kind of processing method with the molded tray that cotton stalk is basic material |
| CN109227859A (en) * | 2018-10-18 | 2019-01-18 | 上海景新信息科技有限公司 | A kind of manufacturing method of cotton stalk Formaldehyde Free Wood-based Panel |
| CN110900778A (en) * | 2019-12-16 | 2020-03-24 | 清华大学 | Plant fiber artificial board and preparation method and application thereof |
| CN110900778B (en) * | 2019-12-16 | 2021-05-14 | 清华大学 | Plant fiber artificial board and preparation method and application thereof |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150225 |
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| WD01 | Invention patent application deemed withdrawn after publication |