CN101125436B - Technology for producing wood wheat straw composite type directional structure board - Google Patents
Technology for producing wood wheat straw composite type directional structure board Download PDFInfo
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- CN101125436B CN101125436B CN2007100129188A CN200710012918A CN101125436B CN 101125436 B CN101125436 B CN 101125436B CN 2007100129188 A CN2007100129188 A CN 2007100129188A CN 200710012918 A CN200710012918 A CN 200710012918A CN 101125436 B CN101125436 B CN 101125436B
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Abstract
The present invention discloses a manufacturing technique of wood cornstock compound oriented structural board applying to wood comprehensive utilization industry, which consists of the following processes of raw material treatment, gluing, pavement and hot pressing, board cooling and trimming. Upper and lower surfaces of the compound oriented structural board are paved with wood shavings in a vertical and oriented manner, and the middle sandwich layer is paved with slender sheeting cornstock shavings in a horizontal and oriented manner; the surface material is added with phenolic-resin adhesive, and the core material is added with isocyanic resin adhesive; the long and larger wood wools are made by two processes of chipping and flaking, and the fine material is arranged in the core layer following the cornstock; the cornstock is made into sheeting material through the processes of tearing and cutting to the special device. The present invention has scientific conception, simple technique and easy manufacturing, and relieves the contradiction of wood shortage in our country. Moreover, the product has high bending strength, larger elastic modulus, low thickness swelling rate without releasing free formaldehyde, and solves the problem of environmental protection and increases the income of farmers.
Description
Technical field:
The present invention relates to a kind of technology for producing wood wheat straw composite type directional structure board in the timber comprehensive utilization industry.
Background technology:
At present, utilize forest zone logging residue, brush wood and farming residue wheat straw at home, produce composite type directional structure board; promptly alleviated the contradiction of China's timber shortage; utilize crops wheat straw stalk again, solved environmental protection problem, also increased farmers' income.Composite type directional structure board is the two wooden big wood shavings of surface for vertically mating formation up and down, and the elongated wheat straw of intermediate core layer for laterally mating formation is characterized in product bending strength height, elastic modelling quantity is big, thickness swelling rate is low, and product does not have free formaldehyde and discharges, and is Green Product.The production technology of this product is a domestic initiation.Therefore, develop a kind of technology for producing wood wheat straw composite type directional structure board is home and abroad new problem anxious to be solved always.
Summary of the invention:
The purpose of this invention is to provide a kind ofly conceive that science, technology are simple, contradiction, the product bending strength height of being convenient to make, alleviate China's timber shortage, elastic modelling quantity is big, thickness swelling rate is low, product does not have the technology for producing wood wheat straw composite type directional structure board that free formaldehyde discharges, solves environmental protection problem, increases farmers' income.
The object of the present invention is achieved like this: this invention is made up of raw material processing, applying glue, the hot pressing of mating formation, buck edging operation, composite type directional structure board, the two surfaces wood particle of mating formation for portrait orientation up and down, intermediate core layer is the elongated plate wheat straw particle that transversal orientation is mated formation; The top layer material applies phenolic resin glue, and core layer material applies isocyanate resin glue; The wooden wood shavings of the sheet of growing up adopt and chip-flaking two workshop sections make after screening, fines with the wheat straw shop to sandwich layer; Wheat straw is torn to cut off on special equipment and is processed into sheet-shaped material; Its production technology is, one, raw material handles: and the sandwich layer wheat straw, wheat straw material is torn cut-out on special equipment, be processed into length and be the elongated segment about 100mm, with the wheat straw stalk strip off of tubulose, form the shavings raw material of sheet or needle-like; Dust is removed in sorting, and then by the drumdrier drying, dry back raw material moisture content is 3-7%; The surface wood raw material adopts the method processing of two workshop sections, and forest zone logging residues such as brush wood are processed into the sliver wood shavings, and the wide about 35mm of wood shavings size is about 60-150mm, the about 0.5-0.8mm of thickness; First workshop section adopts HRL/OSB type drum chipper that raw material is cut into chump, and the length of wood chip approximately is equal to the length of required flaking; Sieve the fines of removing overbreak then; Second workshop section adopts the MSF ring flaker, will cut into the required wood shavings of oriented wood chipboard through the chump of screening; Sieve, fines is spread to sandwich layer with wheat straw again, and removes the bark that contains in the wood shavings; The drying of wood particle 1 adopts cylindrical drier, drying machine import moisture content 80-120%, and outlet moisture content 2-4%, the moisture content of dry back wood particle is 2-3%; Two, applying glue: dried wheat straw particle and wood particle carry out applying glue by the drum-type glue mixer respectively, and the sandwich layer wheat straw applies isocyanate glue, and resin added is 3%, and the surface wood wood shavings apply phenolic resin glue, and resin added is 5%; Three, the hot pressing of mating formation: surface wood wood shavings after the glue mixing and sandwich layer wheat straw particle enter respectively on separately the belt conveyer, to send in the stationary forming station. spreading machine adopts three spreading heads, two are used for the top layer and vertically mat formation, one is used for sandwich layer and laterally mats formation, form continuous slab, deliver into hot press by slab, according to hot pressing curve, under the heat and the effect of pressure, suppress finished product by the regular hour; Four, buck edging: the plank that suppresses is through cooling after a while, and the temperature of plank drops to about about 70 degree, carries out sawing edging, stacking then; Thereby obtain qualified wood wheat straw composite type directional structure board.
Main points of the present invention are its structure and production technology.Its operation principle is that the surface wood raw material adopts the method processing of two workshop sections, and forest zone logging residues such as brush wood are processed into the sliver wood shavings.First workshop section adopts HRL/OSB type drum chipper that raw material is cut into chump, and the length of wood chip approximately is equal to the length of required flaking, sieves the fines of removing overbreak then.Second workshop section adopts the MSF ring flaker, will cut into the required wood shavings of oriented wood chipboard through the chump of screening, sieves again, and fines is spread to sandwich layer with wheat straw, and removes the bark that contains in the wood shavings, and the drying of wood particle adopts cylindrical drier; The sandwich layer wheat straw material is torn cut-out with wheat straw material on special equipment, be processed into length and be the elongated segment about 100mm, wheat straw stalk strip off with tubulose, form the shavings raw material of sheet or needle-like, dust is removed in sorting, then by the drumdrier drying; Dried surface wood wood shavings apply phenolic resin glue, and the sandwich layer wheat straw applies isocyanate glue, form continuous slab by fixed classification spreading machine, according to hot pressing curve, under the effect of heat and pressure, the process regular hour suppresses hair plates, obtains production board behind the buck edging.
Technology for producing wood wheat straw composite type directional structure board compared with prior art; have that design science, technology are simple, contradiction, the product bending strength height of being convenient to make, alleviate China's timber shortage, elastic modelling quantity is big, thickness swelling rate is low, product does not have that free formaldehyde discharges, solves environmental protection problem, advantage such as increase farmers' income, will be widely used in the timber comprehensive utilization industry.
Description of drawings:
The present invention is described in detail below in conjunction with accompanying drawing and example.
Fig. 1 is the longitudinal sectional drawing of wood wheat straw composite type directional structure board of the present invention.
Fig. 2 is the transverse cross-sectional view of wood wheat straw composite type directional structure board of the present invention.
The specific embodiment:
This invention is made up of raw material processing, applying glue, the hot pressing of mating formation, buck edging operation, composite type directional structure board, and the two surfaces wood particle 1 of mating formation for portrait orientation up and down, intermediate core layer is the elongated plate wheat straw particle 2 that transversal orientation is mated formation; The top layer material applies phenolic resin glue, and core layer material applies isocyanate resin glue; The wooden wood shavings of the sheet of growing up 1 adopt and chip-flaking two workshop sections make after screening, fines with the wheat straw shop to sandwich layer; Wheat straw is torn to cut off on special equipment and is processed into sheet-shaped material; Its production technology is, one, raw material handles: and the sandwich layer wheat straw, wheat straw material is torn cut-out on special equipment, be processed into length and be the elongated segment about 100mm, with the wheat straw stalk strip off of tubulose, form the shavings raw material of sheet or needle-like; Dust is removed in sorting, and then by the drumdrier drying, dry back raw material moisture content is 3-7%; The surface wood raw material adopts the method processing of two workshop sections, and forest zone logging residues such as brush wood are processed into the sliver wood shavings, and the wide about 35mm of wood shavings size is about 60-150mm, the about 0.5-0.8mm of thickness; First workshop section adopts HRL/OSB type drum chipper that raw material is cut into chump, and the length of wood chip approximately is equal to the length of required flaking; Sieve the fines of removing overbreak then; Second workshop section adopts the MSF ring flaker, will cut into the required wood shavings of oriented wood chipboard through the chump of screening; Sieve, fines is spread to sandwich layer with wheat straw again, and removes the bark that contains in the wood shavings; The drying of wood particle 1 adopts cylindrical drier, drying machine import moisture content 80-120%, and outlet moisture content 2-4%, the moisture content of dry back wood particle 1 is 2-3%; Two, applying glue: dried wheat straw particle 2 and wood particle 1 carry out applying glue by the drum-type glue mixer respectively, and the sandwich layer wheat straw applies isocyanate glue, and resin added is 3%, and surface wood wood shavings 1 apply phenolic resin glue, and resin added is 5%; Three, the hot pressing of mating formation: surface wood wood shavings 1 after the glue mixing and sandwich layer wheat straw particle 2 enter respectively on separately the belt conveyer, to send in the stationary forming station. spreading machine adopts three spreading heads, two are used for the top layer and vertically mat formation, one is used for sandwich layer and laterally mats formation, form continuous slab, deliver into hot press by slab, according to hot pressing curve, under the heat and the effect of pressure, suppress finished product by the regular hour; Four, buck edging: the plank that suppresses is through cooling after a while, and the temperature of plank drops to about about 70 degree, carries out sawing edging, stacking then; Thereby obtain qualified wood wheat straw composite type directional structure board.
Claims (2)
1. technology for producing wood wheat straw composite type directional structure board, form by raw material processing, applying glue, the hot pressing of mating formation, buck edging operation, it is characterized in that: composite type directional structure board, the two surfaces wood particle of mating formation for portrait orientation up and down, intermediate core layer is the elongated plate wheat straw particle that transversal orientation is mated formation; The top layer material applies phenolic resin glue, and core layer material applies isocyanate resin glue; Wood particle adopts and to chip-flaking two workshop sections make after screening, fines with the wheat straw shop to sandwich layer; Wheat straw is torn to cut off and is processed into sheet-shaped material.
2. technology for producing wood wheat straw composite type directional structure board according to claim 1, it is characterized in that: the production technology of this invention is, one, raw material is handled: the sandwich layer wheat straw, wheat straw material is torn cut-out, be processed into length and be the elongated segment about 100mm, with the wheat straw stalk strip off of tubulose, form the shavings raw material of sheet or needle-like; Dust is removed in sorting, and then by the drumdrier drying, dry back raw material moisture content is 3-7%; The surface wood raw material adopts the method processing of two workshop sections, and brush wood forest zone logging residue is processed into the sliver wood shavings, and the wide about 35mm of wood shavings size is about 60-150mm, the about 0.5-0.8mm of thickness; First workshop section adopts HRL/OSB type drum chipper that raw material is cut into chump, and the length of wood chip approximately is equal to the length of required flaking; Sieve the fines that overbreak removes then; Second workshop section adopts the MSF ring flaker, will cut into the required wood shavings of oriented wood chipboard through the chump of screening; Sieve, fines is spread to sandwich layer with wheat straw again, and removes the bark that contains in the wood shavings; The drying of wood particle (1) adopts cylindrical drier, drying machine import moisture content 80-120%, and outlet moisture content 2-4%, the moisture content of dry back wood particle is 2-3%; Two, applying glue: dried wheat straw particle and wood particle carry out applying glue by the drum-type glue mixer respectively, and the sandwich layer wheat straw applies isocyanate glue, and resin added is 3%, and the surface wood wood shavings apply phenolic resin glue, and resin added is 5%; Three, the hot pressing of mating formation: surface wood wood shavings after the glue mixing and sandwich layer wheat straw particle enter respectively on separately the belt conveyer, send in the stationary forming station, spreading machine adopts three spreading heads, two are used for the top layer and vertically mat formation, and one is used for sandwich layer and laterally mats formation, and forms continuous slab, deliver into hot press by slab, according to hot pressing curve, under the heat and the effect of pressure, suppress finished product by the regular hour; Four, buck edging: the plank that suppresses is through cooling after a while, and the temperature of plank drops to about about 70 degree, carries out sawing edging, stacking then; Thereby obtain qualified wood wheat straw composite type directional structure board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100129188A CN101125436B (en) | 2007-09-21 | 2007-09-21 | Technology for producing wood wheat straw composite type directional structure board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100129188A CN101125436B (en) | 2007-09-21 | 2007-09-21 | Technology for producing wood wheat straw composite type directional structure board |
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| CN101125436A CN101125436A (en) | 2008-02-20 |
| CN101125436B true CN101125436B (en) | 2011-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007100129188A Expired - Fee Related CN101125436B (en) | 2007-09-21 | 2007-09-21 | Technology for producing wood wheat straw composite type directional structure board |
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| CN102198684B (en) * | 2011-04-06 | 2014-06-18 | 鲁丽集团有限公司 | Oriented chipboard and processing technology |
| CN102975271B (en) * | 2012-12-06 | 2015-11-25 | 北京世纪京泰家具有限公司 | A kind of particieboard of low formaldehyde emission |
| CN102990761A (en) * | 2012-12-06 | 2013-03-27 | 青岛文创科技有限公司 | Shaving board with ultra-low formaldehyde emission |
| CN103009455A (en) * | 2012-12-07 | 2013-04-03 | 青岛文创科技有限公司 | Production method of environment-friendly shaving board |
| CN104526833A (en) * | 2012-12-12 | 2015-04-22 | 江苏洛基木业有限公司 | Production method of wheat straw artificial board decorated by oak barks |
| CN103056954B (en) * | 2013-01-16 | 2015-10-28 | 金华市捷特包装有限公司 | A kind of production technology of Wood wool slab with directional structure |
| CN103240787B (en) * | 2013-05-23 | 2015-04-22 | 南京林业大学 | Shaving board made of mudflat plants and manufacturing method thereof |
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| CN105643759A (en) * | 2016-01-04 | 2016-06-08 | 万华生态板业股份有限公司 | Size-graded particleboard and manufacturing method thereof |
| CN106363765A (en) * | 2016-09-29 | 2017-02-01 | 阜南县星光工艺品有限公司 | Preparing method of traditional Chinese medicine durable shaving board |
| CN107081837A (en) * | 2017-04-19 | 2017-08-22 | 张寰 | A kind of net aldehyde particieboard |
| ES2904805T3 (en) | 2017-04-25 | 2022-04-06 | SWISS KRONO Tec AG | OSB wood-derived material board |
| CN107116659B (en) * | 2017-05-12 | 2020-05-29 | 山东农业大学 | Formaldehyde-free composite shaving board with DDGS (distillers dried grains with soluble) as core layer and preparation method thereof |
| CN107553622A (en) * | 2017-09-18 | 2018-01-09 | 贵州剑河园方林业投资开发有限公司 | A kind of two workshop section flaking produces the production method of new OSB plates |
| CN110948629A (en) * | 2018-09-26 | 2020-04-03 | 长沙汉创新材料科技有限公司 | Wood shaving production process based on small-diameter wood fiber material, oriented shaving board and packaging box |
| CN110962209A (en) * | 2018-09-29 | 2020-04-07 | 安乡汉创新材料科技有限公司 | Oriented strand board based on small-diameter wood fiber material, production process and packaging box |
| CN109624014A (en) * | 2018-12-29 | 2019-04-16 | 湖南万华生态板业有限公司 | It is a kind of can facing multiple-layered wood chipboard production technology |
| CN111645164A (en) * | 2020-05-29 | 2020-09-11 | 江苏慧典新材有限公司 | Novel wood shaving accumulated material for house beam and manufacturing process thereof |
| CN112192691A (en) * | 2020-09-29 | 2021-01-08 | 山东俏家装饰新材料有限公司 | LSB plate production process |
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Granted publication date: 20111130 Termination date: 20170921 |