CN105345912A - Production technique and application of straw plate - Google Patents
Production technique and application of straw plate Download PDFInfo
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- 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
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- stalk
- straw
- plate
- production method
- stalk board
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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 |
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| 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 |
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| 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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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160224 |
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| WD01 | Invention patent application deemed withdrawn after publication |