CN1473691A - Medium and high density artificial board of stalk and producing process and use - Google Patents
Medium and high density artificial board of stalk and producing process and use Download PDFInfo
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- CN1473691A CN1473691A CNA03135176XA CN03135176A CN1473691A CN 1473691 A CN1473691 A CN 1473691A CN A03135176X A CNA03135176X A CN A03135176XA CN 03135176 A CN03135176 A CN 03135176A CN 1473691 A CN1473691 A CN 1473691A
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Abstract
Medium and high density artificial board is produced with wheat straw, rice straw, etc as main material; and the production process includes the steps of: wet fiber preparation, dry fiber preparation, mixing with glue, spreading, demolding, pre-pressing, hot pressing, board blank treatment, grinding and others. The medium and high density straw board may be further produced into facing board, reinforced floor board, etc. The medium and high density straw board may have performance similar to that of wooden fiber board, and is non-toxic and waterproof.
Description
Affiliated technical field
The present invention relates to a kind ofly come production middle and higher density stalk plate, and can make facing plate and consolidated floor by deep processing with agricultural wastes (straw, straw).
Background technology
The middle and higher density fiberboard of Chu Shouing, facing plate and consolidated floor in the market, its main raw material(s) all is a timber.Along with dwindling gradually and the reinforcement day by day of the work of preserving the ecological environment of timber resources, timber price can be constantly soaring.This cost that will inevitably cause existing middle and higher density fiberboard, facing plate and consolidated floor significantly increases.The existing in addition used aborning binding agent of middle and higher density fiberboard generally is UF or PF glue, wherein contains a large amount of free formaldehydes, causes itself and deep processed product in use can discharge the harmful substance of a large amount of contaminated environment.From conserving forests, the social benefit of protection environment is set out, and currently presses for the substitute products that various performances can both reach wood fibre board, facing plate and consolidated floor index.
Summary of the invention
The objective of the invention is to avoid above-mentioned weak point of the prior art and adopt that stalks such as straw, straw substitute that timber comes that the production quality is firm, density evenly, waterproof, fire prevention, antiseptic property be good, and nontoxic, harmless middle and higher density stalk plate, and can make facing plate and consolidated floor by deep processing.
The objective of the invention is to reach by following measure: with stalks such as straw, straw is primary raw material, and with straws such as straw, straw earlier after wet feed preparation, the dedusting of one-level cyclonic separation, one-level screening, drying, the dedusting of secondary cyclonic separation, secondary are sieved, measure applying glue, are mated formation, demoulding processing, precompressed, hot pressing, detection, edging crosscut, turnover panel cooling, Ageing Treatment, sanding processing, laterally reach vertical edging and cut, middle and higher density stalk plate is made in technological processes such as stacking, warehouse-in.
After wet feed carries out the one-level screening, can only be that the material of 0.03-15.0mm is delivered to down drying process one in the middle and higher density stalk board production technology of the present invention with length.The above material of length 15.0mm is the oversized dimensions material, and this material will carry out sledge mill once more.Carrying out secondary when screening, the material that is sieved should be divided into three different ranks, wherein the following material of length 0.03mm is dust material (when adopting the demoulding of dust release layer as demolding material, when adopting the paper demoulding or spraying the releasing agent demoulding then as fuel); The material of length between 0.03-1.25mm is the top layer material; The material of length between 1.25-15.0mm is core layer material (carrying out sledge mill once more if the production homogeneous plate can branch away the material of 4.0-15mm).
Demoulding treatment process among the present invention can adopt the dust layer demoulding, it is with dust material, top layer material, core layer material applying glue respectively after metering, mat formation respectively, constitute down dust layer, down top layer, sandwich layer, upper epidermis, go up dust layer, its dust layer plays isolates and demoulding effect.
Demoulding treatment process among the present invention also can adopt the releasing agent demoulding, it be before mating formation to the surface sprinkling releasing agent of forming belt, in the back of mating formation the upper epidermis material is sprayed releasing agent again.
Demoulding treatment process among the present invention also adopts the paper demoulding, it be before mating formation to forming belt upper berth one deck paper, after mating formation again to shop, the surface of upper epidermis material one deck paper.
When the present invention adopts the dust layer demoulding, after the metering applying glue is that dust material, top layer material, core layer material are fully mixed with separately glue, additive respectively after metering, constitute dust layer, top layer, sandwich layer respectively, and then deliver to dust layer, top layer, the sandwich layer system of mating formation respectively.Wherein the dust layer proportioning is dust material (over dry) 94-97% by weight, glue 2-5%, additive 1-1.5%; The top layer proportioning is top layer material (over dry) 93-96% by weight, glue 3-6%, additive 1-1.5%; The sandwich layer proportioning is core layer material (over dry) 91-94% by weight, glue 5-8%, additive 1-1.5%.
When the present invention adopted the releasing agent demoulding, the metering applying glue was to constitute top layer, sandwich layer respectively after top layer material, core layer material are fully mixed with separately glue respectively after metering.And then deliver to top layer, the sandwich layer system of mating formation respectively.Its mesexine proportioning is top layer material (over dry) 93-97% by weight, glue 3-7%; The sandwich layer proportioning is core layer material (over dry) 91-96% by weight, glue 4-9%.
When the present invention adopted the paper demoulding, the metering applying glue was to constitute top layer, sandwich layer respectively after top layer material, core layer material are fully mixed with separately glue respectively after metering.And then deliver to top layer, the sandwich layer system of mating formation respectively.Its mesexine proportioning is top layer material 83.5-95.5% by weight, glue 3-15%, additive 1.5%; The sandwich layer proportioning is core layer material 83.5-93.5% by weight, glue 5.15%, additive 1.5%.
The present invention's used glue in dust layer can be UF or PF or Modified UF or modification PF glue, and additive therefor can be industrial urea or paraffin or K
2CO
3On top layer and the used glue ripple of sandwich layer can be MDI or PMDI or UF or PF or Modified UF or modification PF glue, and used additive can be industrial urea or paraffin or K
2CO
3
The present invention can adopt single drylight presses or multidaylight press or continuous press to carry out hot pressing when hot pressing, and hot pressing district temperature is controlled at 80 ℃～280 ℃, and pressure is controlled at 2500-5000N/mm
2, speed is controlled at 50mm-600mm/s during hot pressing.
The stalk middle and higher density wood-based plate that obtains with manufacturing technique method of the present invention can through timeliness, paperboard in conjunction with, overlay, processes such as deburring, cleaning, cooling, crosscut make the facing plate.
The stalk middle and higher density wood-based plate that obtains with manufacturing technique method of the present invention and the facing plate that makes again through timeliness, vertically cutting, transverse cuts, vertically mill shape, laterally milling processes such as shape, detection, packing makes consolidated floor, can increase timeliness operation once more before vertically milling shape technology, its aging time is 3-5 days.
Description of drawings
Accompanying drawing is a process chart of the present invention.
The specific embodiment
The invention will be further described below in conjunction with example: stalk (straw or straw) is removed impurity (soil block, stone grain, metal etc.), it is broken into be of a size of the bundle of mm of the mm of 800mm * (800-900) * (1200-2500) then.Material bundle is through being transported to out envelope curve, after cutting rope, getting rope, transports to chaffcutter again.The length of stalk is cut into 40-80mm, delivers to the hammer-mill sledge mill again after Gravity Separation is removed impurity.The length of the material that comes out from hammer-mill within 40mm, then the material within these 40mm is carried out the cyclonic separation dedusting after, once sieve again, material is divided into three ranks.Length is delivered to energy factory for the thinnest dust below the 0.03mm and is made fuel; The material that is of a size of 0.03mm-15mm is sent to the wet feed feed bin: length be 15.0mm-40mm oversized dimensions material then by sledge mill once more, after the cyclonic separation dedusting, also deliver to the wet feed feed bin afterwards.Carry out regrading again after wet feed drying in the feed bin (moisture content 1.5-2%), the cyclonic separation dedusting, material is divided into four ranks: length is to be dust material (as demolding material, then being used as fuel when adopting the paper demoulding or spraying the releasing agent demoulding when adopting the release layer demoulding) below the 0.03mm; Length is that 0.03-1.25mm is the top layer material; Length is that 1.25-15.0mm is core layer material (carrying out sledge mill once more if the production homogeneous plate can branch away the material of 4.0-15mm); Length is that the above oversized dimensions material of 15.0mm will be sent to and carry out sledge mill once more.Then with dust material, top layer material, core layer material after metering respectively with separately glue, be transported to dust layer, top layer, the sandwich layer system of mating formation after additive fully mixes.Wherein the glue of dust layer use is a UF glue, and shared ratio is 3% (this layer whole sand when sanding falls, and guarantee that finished product is formaldehydeless); The glue that use on the top layer can be a MDI glue, and shared ratio is 5%; The glue that sandwich layer uses can be MDI glue, and shared ratio is 7%; The used additive of each layer is K
2CO
3, be respectively at the shared ratio of each layer and mat formation system after 1.5% from bottom to up, on forming belt, mat formation equably according to the order of dust layer, top layer, sandwich layer, top layer, dust layer.The width of mating formation: 1290-2690mm, height: 30-400mm mats formation.Then enter precompressed, its pressure is controlled at 1500-2025KN.The height of slab is about 20-300mm after precompressed, and length and width all increase to some extent.Therefore slab carried out vertical edging earlier before entering hot pressing, and making width is 1240-2640mm.Carry out hot pressing afterwards, its hot pressing temperature is 80 ℃-280 ℃, and pressure is 2500-5000N/mm
2, speed is 50-600mm/s.Hot-forming slab after testing after, again behind vertical edging, crosscut, turnover panel cooling, Ageing Treatment 48-72 hour, transport to the sanding line again after coarse sand, washed ore, classification, vertical edging, horizontal edging are handled, the feasible middle and higher density straw production board that is of a size of 1220 (1830,2135) mm * 2440 (2620) mm * 3-40mm.Last stacking warehouse-in.More than be the embodiment of the invention one, the releasing process that is adopted is the dust layer demoulding.
Embodiment two, and the manufacturing technique method of this embodiment is identical with the manufacturing technique method of the heel embodiment one that mats formation before mating formation, and just releasing process adopts the releasing agent demoulding.Its needs before mating formation the surface sprinkling releasing agent to forming belt.According to being transported to top layer, the sandwich layer system of mating formation after top layer material, core layer material are fully mixed with separately glue respectively after metering.The glue that its mesexine uses is a MDI glue, and shared ratio is 5%; The glue that sandwich layer uses is a MD glue, and shared ratio is 7%.The system of mating formation afterwards according to the order of down top layer, sandwich layer, upper epidermis from bottom to up, mat formation on forming belt equably.The height of mating formation is identical with embodiment one with width.Again upper epidermis is sprayed releasing agent after having mated formation.Later manufacturing technique method and embodiment one are identical.
Embodiment three, and the manufacturing technique method of this embodiment is identical with the manufacturing technique method of the heel embodiment one that mats formation before mating formation, and just releasing process adopts the paper demoulding.Its needs before mating formation layer overlay paper on forming belt.Then with top layer material, core layer material through counting last top layer, the sandwich layer system of mating formation that is transported to after fully mixing with separately glue respectively.The glue that its mesexine uses is a MDI glue, and shared ratio is 3-15%.Additive is an industrial urea, and shared ratio is 1.5%; The glue that sandwich layer uses is a MDI glue, and shared ratio is 5.15%.Additive is an industrial urea, and shared ratio is 1.5%; The system of mating formation afterwards according to the order of down top layer, sandwich layer, upper epidermis from bottom to up, mat formation on forming belt equably.The height of mating formation is identical with embodiment one with width.Again upper epidermis is spread one deck paper after having mated formation.Later manufacturing technique method and embodiment one are identical.
The stalk middle and higher density wood-based plate that obtains with manufacturing technique method of the present invention can be made into the facing plate.The manufacturing technique method of its facing plate is to be base material with straw middle and higher density wood-based plate, through timeliness, paperboard in conjunction with, overlay, art production process such as deburring, cleaning, cooling, crosscut and obtaining.
Use the facing plate that makes by straw middle and higher density wood-based plate to make into consolidated floor again.The manufacturing technique method of its consolidated floor is to be base material with the facing plate that is made by straw middle and higher density wood-based plate, and through timeliness, vertically cutting, transverse cuts, once more timeliness, vertically mill shape, laterally mill art production process such as shape, detection, packing and obtain.Wherein aging time is 3～5 days once more.
The present invention has following advantage compared to existing technology: this middle and higher density stalk plate, facing plate and consolidated floor not only all meet or exceed wood fibre board on various performance indications such as elastic modelling quantity, MOR, internal bond, thickness swelling rate, nail-holding ability.And it turns waste into wealth, and substitutes timber, conserves forests, and preserves the ecological environment, and has created effective way for vast farmers increases income simultaneously, and obvious social and economic benefit are arranged.
Claims (12)
1, a kind of priority is sieved, measures applying glue, is mated formation, demoulding processing, precompressed, hot pressing, detection, edging crosscut, turnover panel cooling, Ageing Treatment, sanding processing, laterally reaches the production method that technological processes such as vertical edging is cut, stacking, warehouse-in come production middle and higher density artificial board of straw through wet feed preparation, the dedusting of one-level cyclonic separation, one-level screening, drying, the dedusting of secondary cyclonic separation, secondary, it is characterized in that main raw material(s) is stalks such as straw, straw.
2, the production method of middle and higher density artificial board of straw according to claim 1, it is characterized in that after wet feed carries out the one-level screening, the material that can only be 0.03-15.0mm with length is delivered to down the road drying process, and the above material of length 15.0mm is the oversized dimensions material, and this material will carry out sledge mill once more; Simultaneously when carrying out the secondary screening, the material that is sieved should be divided into three different ranks, wherein length is that the following material of 0.03mm is the dust material, length is the top layer material between 0.03-1.25mm, the material of length between 1.25-15.0mm is core layer material (can branch away sledge mill once more to length at the material of 4.0-15mm if produce homogeneous plate).
3, the production method of middle and higher density artificial board of straw according to claim 2, it is characterized in that demoulding treatment process can adopt the dust layer demoulding, it is with dust material, top layer material, core layer material applying glue respectively after metering, mat formation respectively, constitute down dust layer, down top layer, sandwich layer, upper epidermis, go up dust layer, wherein upper and lower dust layer plays isolates and demoulding effect.
4, the production method of middle and higher density artificial board of straw according to claim 2 is characterized in that demoulding treatment process can adopt the releasing agent demoulding, it be before mating formation to the surface sprinkling releasing agent of forming belt, in the back of mating formation the upper epidermis material is sprayed releasing agent again.
5, the production method of middle and higher density artificial board of straw according to claim 2 is characterized in that demoulding treatment process can adopt the paper demoulding, it be before mating formation to forming belt upper berth one deck paper, after mating formation again to shop, the surface of upper epidermis material one deck paper.
6, the production method of middle and higher density artificial board of straw according to claim 3, when it is characterized in that adopting the dust layer demoulding, the metering applying glue is to constitute dust layer, top layer, sandwich layer respectively after dust material, top layer material, core layer material are fully mixed with separately glue, additive respectively after metering, and then deliver to dust layer, top layer, the sandwich layer system of mating formation respectively, wherein the dust layer proportioning is dust layer (over dry) 94～97% by weight, glue 2-5%, additive 1-1.5%; The top layer proportioning is top layer material (over dry) 93～96% by weight, glue 3-6%, additive 1-1.5%; The sandwich layer proportioning is core layer material (over dry) 91～94% by weight, glue 5～8%, additive 1-1.5%.
7, the production method of middle and higher density artificial board of straw according to claim 4, when it is characterized in that adopting the releasing agent demoulding, the metering applying glue is to constitute top layer, sandwich layer respectively after top layer material, core layer material are fully mixed with separately glue respectively after metering, and then delivers to top layer, the sandwich layer system of mating formation respectively.Its mesexine proportioning is top layer material (over dry) 93～97% by weight, glue 3～7%; The sandwich layer proportioning is core layer material (over dry) 91～96% by weight, glue 4～9%.
8, the production method of middle and higher density artificial board of straw according to claim 5, when it is characterized in that adopting the paper demoulding, the metering applying glue is to constitute top layer, sandwich layer respectively after top layer material, core layer material are fully mixed with separately glue respectively after metering, and then deliver to top layer, the sandwich layer system of mating formation respectively, its mesexine proportioning is top layer material 83.5～95.5% by weight, glue 3～15%, additive 1.5%; The sandwich layer proportioning is core layer material 83.5～93.5% by weight, glue 5～15%, additive 1.5%.
9, according to the production method of claim 6 or 7 or 8 described middle and higher density artificial board of straw, it is characterized in that glue used in dust layer can be UF or PF or Modified UF or modification PF glue, additive therefor can be industrial urea or paraffin or K
2CO
3On top layer and the used glue of sandwich layer can be MDI or PMDI or UF or PF or Modified UF or modification PF glue, and used additive can be industrial urea or paraffin or K
2CO
3
10, the production method of middle and higher density artificial board of straw according to claim 9, it is characterized in that when hot pressing, can adopt single drylight presses or multidaylight press or continuous press to carry out hot pressing, hot pressing district temperature is controlled at 80 ℃～280 ℃, and pressure is controlled at 2500～5000N/mm
2, speed is controlled at 50mm-600mm/s during hot pressing.
11, a kind of through timeliness, paperboard in conjunction with, overlay, method that the facing plate is produced in technological processes such as deburring, cleaning, cooling, crosscut, it is characterized in that base material is a stalk middle and higher density wood-based plate.
12, a kind of through timeliness, vertically cutting, transverse cuts, vertically mill shape, laterally mill the method that consolidated floor is produced in technological processes such as shape, detection, packing.Its feature is the facing plate that is made by stalk middle and higher density wood-based plate at base material, and increases timeliness operation once more before vertically milling the shape operation, and its aging time is 3～5 days.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA03135176XA CN1473691A (en) | 2003-06-11 | 2003-06-11 | Medium and high density artificial board of stalk and producing process and use |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA03135176XA CN1473691A (en) | 2003-06-11 | 2003-06-11 | Medium and high density artificial board of stalk and producing process and use |
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| CN1473691A true CN1473691A (en) | 2004-02-11 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100333884C (en) * | 2005-01-05 | 2007-08-29 | 南京林业大学 | Combined adhesive mixing method suitable for production of plates from wheat or rice stalks |
| CN100355561C (en) * | 2006-02-23 | 2007-12-19 | 中国科学院南京土壤研究所 | Biodegradable waterproof artificial floating island |
| CN101158136B (en) * | 2007-09-12 | 2011-11-23 | 彭万喜 | Method for manufacturing lightweight acoustic insulation shock-proof wood-based panel by employing waste papers |
| CN102828605A (en) * | 2012-10-08 | 2012-12-19 | 成都纳硕科技有限公司 | Method for producing composite floors by utilizing straws |
| CN102862205A (en) * | 2011-07-04 | 2013-01-09 | 长沙创远环保科技有限公司 | Production process method and uses of straw board |
| CN103203790A (en) * | 2013-01-30 | 2013-07-17 | 天津圣运新材料科技有限公司 | Method for producing fiberboard by utilizing cementing property of straw fibers |
| CN105110067A (en) * | 2015-08-20 | 2015-12-02 | 池浩 | Paper laying device and method of belt type hot press |
| CN105619571A (en) * | 2016-01-12 | 2016-06-01 | 广东佳居乐厨房科技有限公司 | Preparation method of straw grain fragrant plate |
| CN109418006A (en) * | 2017-08-30 | 2019-03-05 | 陈汇宏 | The stalk that easily collection coarse crushing just shunts again as many as deep system advantage comprehensively utilizes mode |
| CN113263582A (en) * | 2021-06-21 | 2021-08-17 | 浙江丽象木业有限公司 | Green and efficient preparation method of camphorwood fiberboard |
-
2003
- 2003-06-11 CN CNA03135176XA patent/CN1473691A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100333884C (en) * | 2005-01-05 | 2007-08-29 | 南京林业大学 | Combined adhesive mixing method suitable for production of plates from wheat or rice stalks |
| CN100355561C (en) * | 2006-02-23 | 2007-12-19 | 中国科学院南京土壤研究所 | Biodegradable waterproof artificial floating island |
| CN101158136B (en) * | 2007-09-12 | 2011-11-23 | 彭万喜 | Method for manufacturing lightweight acoustic insulation shock-proof wood-based panel by employing waste papers |
| CN102862205A (en) * | 2011-07-04 | 2013-01-09 | 长沙创远环保科技有限公司 | Production process method and uses of straw board |
| CN102828605A (en) * | 2012-10-08 | 2012-12-19 | 成都纳硕科技有限公司 | Method for producing composite floors by utilizing straws |
| CN103203790A (en) * | 2013-01-30 | 2013-07-17 | 天津圣运新材料科技有限公司 | Method for producing fiberboard by utilizing cementing property of straw fibers |
| CN105110067A (en) * | 2015-08-20 | 2015-12-02 | 池浩 | Paper laying device and method of belt type hot press |
| CN105110067B (en) * | 2015-08-20 | 2018-01-12 | 池浩 | A kind of paving paper devices and methods therefor of belt hot press |
| CN105619571A (en) * | 2016-01-12 | 2016-06-01 | 广东佳居乐厨房科技有限公司 | Preparation method of straw grain fragrant plate |
| CN105619571B (en) * | 2016-01-12 | 2018-01-23 | 广东佳居乐厨房科技有限公司 | A kind of preparation method of stalk standing grain perfume (or spice) plate |
| CN109418006A (en) * | 2017-08-30 | 2019-03-05 | 陈汇宏 | The stalk that easily collection coarse crushing just shunts again as many as deep system advantage comprehensively utilizes mode |
| CN113263582A (en) * | 2021-06-21 | 2021-08-17 | 浙江丽象木业有限公司 | Green and efficient preparation method of camphorwood fiberboard |
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