CN105345912A - Production technique and application of straw plate - Google Patents
Production technique and application of straw plate Download PDFInfo
- Publication number
- CN105345912A CN105345912A CN201410408090.8A CN201410408090A CN105345912A CN 105345912 A CN105345912 A CN 105345912A CN 201410408090 A CN201410408090 A CN 201410408090A CN 105345912 A CN105345912 A CN 105345912A
- Authority
- CN
- China
- Prior art keywords
- stalk
- straw
- plate
- production method
- stalk board
- 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
- 239000010902 straw Substances 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000003292 glue Substances 0.000 claims abstract description 20
- 238000007731 hot pressing Methods 0.000 claims abstract description 13
- 240000002791 Brassica napus Species 0.000 claims abstract description 12
- 235000004977 Brassica sinapistrum Nutrition 0.000 claims abstract description 12
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 12
- 235000009566 rice Nutrition 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 6
- 238000005520 cutting process Methods 0.000 claims abstract description 6
- 238000000227 grinding Methods 0.000 claims abstract description 5
- 240000007594 Oryza sativa Species 0.000 claims abstract 2
- 239000002994 raw material Substances 0.000 claims description 20
- 239000000843 powder Substances 0.000 claims description 14
- 238000000926 separation method Methods 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 239000003063 flame retardant Substances 0.000 claims description 6
- 239000012948 isocyanate Substances 0.000 claims description 6
- 150000002513 isocyanates Chemical class 0.000 claims description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 5
- 238000003892 spreading Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 2
- 238000010335 hydrothermal treatment Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims description 2
- 238000000889 atomisation Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 4
- 229920002522 Wood fibre Polymers 0.000 abstract description 3
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract description 2
- 230000008961 swelling Effects 0.000 abstract description 2
- 239000002023 wood Substances 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000005452 bending Methods 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
- 238000003860 storage Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000002025 wood fiber Substances 0.000 abstract 1
- 241000209094 Oryza Species 0.000 description 10
- 239000010410 layer Substances 0.000 description 9
- 239000004576 sand Substances 0.000 description 6
- 239000012792 core layer Substances 0.000 description 3
- 238000007688 edging Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention discloses a production technique and application of a straw plate. The straw such as rice straw and rapeseed straw is used as main materials of the straw plate, and the whole technological process for manufacturing the straw plate comprises the steps of cutting-off, sorting, drying, grinding, glue mixing, demolding treatment, mat formation, pre-pressing, hot-pressing, edge cutting, sanding, checking and storage. The straw plate can be manufactured into a sound-insulation plate or an anti-flaming plate or a waterproof plate for a vehicle or a ship. Various performance indexes, such as the elasticity modulus, the static bending intensity, the internal bonding strength, the surface bonding strength and the thickness swelling rate of water absorption, of the straw plate reach or are superior to those of a wooden fiber plate. In addition, wood fibers of the straw plate are as long as 6-10 cm, the tenacity is high, the fireproof function and the waterproof function are achieved, the straw plate contains no formaldehyde, wood can be replaced, and the ecological environment is protected.
Description
Technical field
The present invention relates to a kind of production method adopting cereal crops stalk (rice straw etc.) and industrial crops stalk (rapeseed stalk etc.) to produce stalk board, and this stalk board is made sound panel, flame-retardant board, car and boat splash guard by deep processing.
Background technology
Environment and development is the two principal themes in 21 century global range, in order to preserve the ecological environment, after benefiting future generations
In generation, country starts wildwood protected project, and many areas have been carried out to prohibit and cut down.How reasonably solving the Utilizing question of stalk, is the vital task of pendulum in face of us.A kind of wood-based plate that stalk board utilizes stalk to manufacture for raw material just, its various physical and chemical performance all reaches the index of wood fibre board, not only protects the forest reserves but also meet ecological requirements, and has good processing characteristics.
Summary of the invention
The object of this invention is to provide a kind of production method of stalk board.
Another object of the present invention is to provide this stalk board and is manufacturing the application in sound panel, flame-retardant board, car and boat splash guard.
The present invention is reached by following measure:
With stalks such as rice straw, rapeseed stalks for primary raw material, through cut-out, sorting, drying, grinding, glue mixing, demoulding process, mat formation, precompressed, hot pressing, cutting edge, sanding, inspection, warehouse-in whole technical process manufacture stalk board.
The present invention is by raw material rice straw 60% to scale, rapeseed straw 0-40%, after other stalks 0-40% (above raw material composition sum is 100%) mixing, after being cut to 6-10cm, after the knot of stalk and impurity sub-elect by airflow separator, enter drying section, dried raw aqueous rate is controlled at 8-11%.In the present invention, degree all by weight percentage.
The present invention, by after the stalk drying of separation length 6-10cm, enters the grinding of grinder normal temperature.
The present invention adopts hydrothermal treatment consists to add mechanical treatment to improve stalk interfacial characteristics, and under the prerequisite not increasing adhesive, the physical and mechanical property of stalk board improves.
The present invention adopts and is added with the demoulding of powder separation layer, respectively adds an airflow pavement head, the stalk powder not adding glue is laid in the upper and lower surface of slab, push press hot pressing in raw material spreading machine both sides, powder suction when unloading plate, also can remove powder during this external sanding.
The present invention adopts " cylinder-ring type " to combine glue mixing system, by high-pressure nozzle, adhesive (isocyanates) is atomized, be sprayed at raw material on the surface, sized raw material then through ring type glue mixer, under high-speed stirred effect, make phase mutual friction between raw material, transmit glue by friction, expanding glue surface area, improve uniformity of size application.
The present invention adopts continuous flow press, substantially increases production efficiency, and temperature controls at 160-180 DEG C; Stress control is at 2-5Mpa; Hot pressing time controls at 20-40s/mm.
Sound panel, flame-retardant board, car and boat splash guard is made with the stalk board that manufacturing technique method of the present invention obtains.
Beneficial effect of the present invention:
The present invention compared to existing technology tool has the following advantages: this stalk board not only all meets or exceeds wood fibre board in the various performance indications such as elastic modelling quantity, MOR, internal bond strength, surface bonding strength, thickness swelling rate.And it is not containing formaldehyde, energy fire-proof and water-proof, and turn waste into wealth, substitute timber, protect ecological environment, add social benefit.
Detailed description of the invention
Embodiment one
The stalk board of the present embodiment, with rice straw and rapeseed stalk and the isocyanates gluing agent with mobility for raw material is prepared from.
The technological process of examples produce sound panel: bag-packaged rice straw and rapeseed stalk are transported near chaffcutter respectively, stack by kind, cut into 6-10cm, rice straw 60%, rapeseed stalk 40% in proportion, through pneumatic separation, the knot of stalk and foreign material are separated, by the raw material drying that meets to moisture content at 8-11%, grind through grinder normal temperature, the agent of isocyanates gluing is applied in proportion again by cylinder-ring type glue mixer, top layer 5%, sandwich layer 6%, deliver to table, core layer raw material storehouse of mating formation.Respectively add an airflow pavement head in spreading machine both sides, the stalk powder not adding glue is laid in the upper and lower surface of slab, push press hot pressing, its temperature is at 160-180 DEG C, and pressure is 4Mpa, and hot pressing time is 20-40s/mm, powder suction when unloading plate.Again through buck, in length and breadth cutting edge, maintenance after 96 hours, being transported to sanding line after coarse sand, washed ore, fine sand, edging process is the stalk board of 1220mm*2440mm*16mm by size Control.
Embodiment two
The technological process of flame-retardant board: bag-packaged rice straw and rapeseed stalk are transported near chaffcutter respectively, stack by kind, cut into 6-10cm, rice straw 60%, rapeseed stalk 35% in proportion, fire retardant 5%, through pneumatic separation, the knot of stalk and foreign material are separated, by the raw material drying that meets to moisture content at 8-11%, grind through grinder normal temperature, isocyanate adhesive is applied in proportion again by cylinder-ring type glue mixer, top layer 5%, sandwich layer 6%, deliver to table, core layer raw material storehouse of mating formation.Respectively add an airflow pavement head in spreading machine both sides, the stalk powder not adding glue is laid in the upper and lower surface of slab, push press hot pressing, its temperature is at 160-180 DEG C, and pressure is 4Mpa, and hot pressing time is 20-40s/mm, powder suction when unloading plate.Again through buck, in length and breadth cutting edge, maintenance after 96 hours, being transported to sanding line after coarse sand, washed ore, fine sand, edging process is the stalk board of 1220mm*2440mm*16mm by size Control.
Example three
The technological process of car and boat splash guard: bag-packaged rice straw and rapeseed stalk are transported near chaffcutter respectively, stack by kind, cut into 6-10cm, rice straw 60%, rapeseed stalk 40% in proportion, through pneumatic separation, the knot of stalk and foreign material are separated, by the raw material drying that meets to moisture content at 8-11%, grind through grinder normal temperature, isocyanate adhesive is applied in proportion again by cylinder-ring type glue mixer, top layer 5%, sandwich layer 6%, table, core layer raw material are delivered to storehouse of mating formation, the bonding waterproof fireproofing wearing layer on top layer.Respectively add an airflow pavement head in spreading machine both sides, the stalk powder not adding glue is laid in the upper and lower surface of slab, push press hot pressing, its temperature is at 160-180 DEG C, and pressure is 4Mpa, and hot pressing time is 20-40s/mm, powder suction when unloading plate.Again through buck, in length and breadth cutting edge, maintenance after 96 hours, being transported to sanding line after coarse sand, washed ore, fine sand, edging process is the stalk board of 1220mm*2440mm*10mm by size Control.
Although the present invention is described by reference to preferred embodiment, those of ordinary skill in the art should understand; the description of above-described embodiment can be not limited to; in the scope of claims, the various changes in form and details can be done, all belong within protection scope of the present invention.
Claims (9)
1. the production method of a stalk board, it is characterized in that the method take stalk as primary raw material, successively through cut-outs, sorting, drying, grinding, glue mixing, demoulding process, mat formation, precompressed, hot pressing, cutting edge, sanding, inspection, warehouse-in whole technical process manufacture stalk board.
2. the production method of stalk board according to claim 1, it is characterized in that rice straw 60%, rapeseed straw 0-40%, after other stalks 0-40% mixes, after being cut to 6-10cm, after the knot of stalk and impurity sub-elect by airflow separator, enter drying section, dried raw aqueous rate is controlled at 8-11%.
3. in the present invention, degree is all by weight percentage.
4. the production method of stalk board according to claim 1, after it is characterized in that the stalk drying by separation length 6-10cm, enters the grinding of grinder normal temperature.
5. the production method of stalk board according to claim 1, it is characterized in that adopting hydrothermal treatment consists to add mechanical treatment to improve stalk interfacial characteristics, under the prerequisite not increasing adhesive, the physical and mechanical property of stalk board improves.
6. the production method of stalk board according to claim 1, it is characterized in that employing is added with the demoulding of powder separation layer, an airflow pavement head is respectively added in raw material spreading machine both sides, the stalk powder not adding glue is laid in the upper and lower surface of slab, push press hot pressing, powder suction when unloading plate, during this external sanding, also powder can be removed.
7. the production method of stalk board according to claim 1, it is characterized in that described glue mixing system adopts " cylinder-ring type " to combine glue mixing system, by high-pressure nozzle, adhesive (isocyanates) atomization, be sprayed at raw material on the surface, sized raw material is then through ring type glue mixer, under high-speed stirred effect, make phase mutual friction between raw material, transmit glue by friction, expanding glue surface area, improve uniformity of size application.
8. the production method of stalk board according to claim 1, it is characterized in that adopting continuous flow press, substantially increase production efficiency, temperature controls at 160-180 DEG C; Stress control is at 2-5Mpa; Hot pressing time controls at 20-40s/mm.
9. the production method of stalk board according to claim 1, is characterized in that the stalk board obtained with manufacturing technique method of the present invention can be made into sound panel, flame-retardant board, car and boat splash guard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410408090.8A CN105345912A (en) | 2014-08-19 | 2014-08-19 | Production technique and application of straw plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410408090.8A CN105345912A (en) | 2014-08-19 | 2014-08-19 | Production technique and application of straw plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105345912A true CN105345912A (en) | 2016-02-24 |
Family
ID=55322045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410408090.8A Pending CN105345912A (en) | 2014-08-19 | 2014-08-19 | Production technique and application of straw plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105345912A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111571758A (en) * | 2020-06-12 | 2020-08-25 | 鸿伟木业（仁化）有限公司 | Production process of moisture-proof super E0 bamboo chip shaving board |
-
2014
- 2014-08-19 CN CN201410408090.8A patent/CN105345912A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111571758A (en) * | 2020-06-12 | 2020-08-25 | 鸿伟木业（仁化）有限公司 | Production process of moisture-proof super E0 bamboo chip shaving board |
| CN111571758B (en) * | 2020-06-12 | 2021-04-16 | 鸿伟木业（仁化）有限公司 | Production process of moisture-proof super E0 bamboo chip shaving board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160224 |
|
| WD01 | Invention patent application deemed withdrawn after publication |