CN102179850B - Manufacturing method for producing high-strength wood plate substitutes with straws - Google Patents
Manufacturing method for producing high-strength wood plate substitutes with straws Download PDFInfo
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- CN102179850B CN102179850B CN201110038135.3A CN201110038135A CN102179850B CN 102179850 B CN102179850 B CN 102179850B CN 201110038135 A CN201110038135 A CN 201110038135A CN 102179850 B CN102179850 B CN 102179850B
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Abstract
The invention relates to a manufacturing method for producing high-strength wood plate substitutes with straws, which comprises the following steps: processing various plant straws or other fibers into velvet or slurry type through special equipment; adding environmentally-friendly adhesives, additive filler and the like, carrying out high-speed and even mixing and stirring to obtain materials with solid content of 70+/-5 percent; injecting the material in an inlet of an energy-saving and environmentally-friendly type plate forming machine, evenly laying the materials in a closed ring type strip-shaped mold by a metering device and a conveyor, carrying out microwave processing, leading the temperature of the materials to rise from normal temperature to more than 100 DEG C, thus achieving the purpose of firmly combination of the adhesive and the fiber, and sterilization; carrying out extrusion forming to obtain a veneer with a geometry shape, and compounding the veneer or other materials into hollow high-strength wood plate substitutes. The plate can substitute wood plate, core boards, plywood, shaving boards, medium density fiber boards and other boards, can be further machined into light type walls, packaging boxes, heavy-duty pallets, decoration plates, furniture, house decoration members, artware and other products.
Description
The present invention " produces the method for high-strength board capable of replacing wood board material " and relates to stalk is by the comprehensive development and utilization of the materials such as agricultural stalk and city waste wood and waste textile, turn waste into wealth.Particularly adopt the new and high technology of energy-conservation, water saving, low-carbon (LC), three-waste free discharge, microwave drying rapid shaping.Producing this product of the high-strength board capable of replacing wood board material of environmental type (or other device) can directly apply, and also further deep processing becomes the products such as light wall, packing case, heavy-duty tray, decorative panel, furniture, house decoraton member and handicraft.
Background technology:
The various careless class stalk of China's agricultural production approximately reaches more than 600,000,000 ton at present, and resource utilization is very low, and major part goes out of use, and even burns, and causes resource waste and severe environmental pollution greatly.Development along with agricultural economy, the waste of stalk resource and the pollution of environment do not reduce yet, add the excessive felling of forest, grassland overgraze, make ecological environment suffer serious destruction, soil erosion, desertification of land is day by day serious, natural and man-made calamities emerge in an endless stream, and have brought great harm to economic development and people's lives.Therefore making full use of stalk resource turns waste into wealth, and produce energy saving and environment friendly high-strength board capable of replacing wood board material or other device and be very important, be that market is badly in need of very much.Like this by the advantage of agricultural resource; be converted into the advantage of commodity economy; the needs of situation; promoted the benign cycle of agricultural production; protected ecological environment; improved rural economic structure, increased employment and peasant's income, to supporting that agriculture, rural areas and farmers have earth shaking realistic meaning and far-reaching historic significance (economic implications and social effect)
In recent years, the economic develop rapidly of China, environmental protection, energy problem are unprecedentedly severe, and saving the energy is the task of top priority.Resource is the important goal of optimizing the economic structure, and must firmly reverse the situation of high flow rate, high pollution, low output.Walk out the road for development of an environment-friendly and energy-efficient with Chinese characteristics.Become the only way of China's sustainable economic development." forest law " that country puts into effect, for protecting forest resources, taked a series of measure.Sheet material production industry has been subject to huge challenge and impact.Seek the development work of new material replacement natural timber, the important act of become sheet material industry figure existence, seeking development.And stalk is with the peculiar advantage of " inexhaustible ", become the focus that sheet material industry and relevant departments pay close attention to.
In recent years, the development of domestic construction market and house ornamentation industry, the consumption market rapid growths such as finishing, decoration, furniture, make China's industry of artificial boards spatial development.China's artificial board year production in 2003 has surpassed 4000 ten thousand steres, is only second to the U.S. and occupies the second in the world.Several hundred million square metres of the annual newly constructed houses of China, fit up sheet material consumption used and account for No. 1 in the world.Artificial board adhesive used on market is mainly Lauxite and melamine resin.In actual production and application process, must have a large amount of free formaldehydes and discharge, this has a serious impact the pollution of environment and infringement human body physical and mental health.Product on market is all cried out environmental type product, but survey most of aldehydes, exceeds standard, defective, needs to discharge for a long time pernicious gas and just can move in after house decoration.But also there are many users to suffer, obtained grave illness, even life threatening.Therefore these products have very large fear and sense of insecurity in people mind; so environmental protection, energy-saving and emission-reduction comprehensive utilization, adopts the new and high technology with independent intellectual property right; produce environmental type high added value market in urgent need for this product, seem more important and be badly in need of.
Original production sheet material technology is power consumption, big power consumer.Product drying mode adopts the modes such as electric heating, hot blast, steam, all to utilize heat conducting principle, heat is progressively made object central temperature raise from heated object outside, because of object to be processed thermal conductivity poor, outside is coking, also not heating up in inside, therefore has the shortcomings such as power consumption is large, the time is long, of poor quality, efficiency is low, production cost is high.
Summary of the invention:
The application adopts heating using microwave, makes heating object itself be heated as heater, does not need heat transfer process, and frequency is 2450MHz, and with 24.5 hundred million vibrations per second, hydrone is too with 24.5 hundred million vibrations per second, and between molecule, friction produces heat mutually.Heating simultaneously inside and outside self-heating, temperature is even, only uses the time of 1～3 minute, and material to be machined just can rise to more than 100 ℃ by 20 ℃, water system environmental protection glue is fully reacted reach the object of firm with fiber bonding in sterilization.The microwave energy adding makes interior of articles produce heat and vapour pressure, moisture is driven to surface, and is excluded rapidly.Therefore ten times of the numbers that production efficiency and energy-saving effect are the original mode of production.Therefore it meets " energy-saving and emission-reduction " " low-carbon economy " policy requirements, is worth us to adopt.
A kind of method of producing high-strength board capable of replacing wood board material with stalk, to adopt modern design, energy-saving and emission-reduction, pollution-free, zero-emission, the various discarded resources of comprehensive utilization, the new technology turning waste into wealth, is that production cost is low, the new and high technology of the high and low carbon economy of efficiency, still belongs to so far pioneering.
Its preparation method is:
1, agricultural stalk is through kneading or grinding leaser or efficient kibbling mill, velvet shape fiber is worn in stranding, also can be again through steam or hot water softening fibre, through high-density paste mill, by fiber treatment pulp, mass dryness fraction is 80～90% stand-by (also city waste wood or other fiber can be processed into velvet shape stand-by).
2, high-adhesion energy, protection against the tide, mildew-resistant, an environment-friendly type starch glue, what relate to is to utilize to meet the technology that ecological environment requires, adequately and reasonably producing starch, makes high cohesive force, protection against the tide, mildew-resistant, environment-friendly type starch glue.It is that starch is passed through to oxidant consumption 10% ± 2%, and oxidative degradation reaches needs viscosity and molecular weight.Under stirring condition, through the gelatinization of heating hydro-oxidation sodium, gelatinization point: 56～～72 ℃, (determining according to variety classes starch) paste agent consumption 1～10%, then add complexing agent, crosslinking agent, graft copolymerization reagent, terminator, waterproofing agent, reinforcing agent etc.Make glue solid content 40-50%, high-adhesion energy environment-friendly type starch glue is stand-by.(abbreviation adhesive)
3, by velvet shape fiber or slurry fiber, be that 0.8～1 to 0.8～1 above addition is by oven-dry weight with the additional proportion of high-adhesion energy amylan, and add appropriate reinforcing agent, functional aid, filler etc., drop in multi-functional mixer, discongesting under stirring condition at a high speed, be dispersed into highly evenly loose material body, solid content 70% ± 5%.
4, mass dryness fraction 70% ± 5% material body is injected into energy-saving and environment-friendly making sheet (or device) forming machine, through microwave treatment, temperature of charge is raised to more than 100 ℃ by normal temperature, makes environmental-protection type adhesive and fiber bonding firmly, also reaches the effect of sterilization simultaneously.Material is progressively pressurization in mould, and one side sheet material (or device) mass dryness fraction that mold pressing goes out the geometry shape of design configuration is 80～90%.
5, the geometry shape one side sheet material of design configuration with millboard (various boxboard) or other ornament materials, is combined into hollow high-strength environment-friendly board capable of replacing wood board material after gluing.
6, mould employing polytetrafluoroethylglass glass fiber band, the material that the nonpolar molecules such as polyethylene, poly-two alkene, rubber form, it can see through microwave and come spent material to heat up, and brings into play adhesive bonds effect and reaches bactericidal effect.
While 7, producing other structure devices, production procedure is all identical, and just the mould in former is different, can be according to product requirement, and design different structure mould, as produced the products such as ornament member and handicraft.
Good effect after invention is implemented is:
1, stalk is a fibrinoid material, it is the precious resources that nature gives the mankind, utilize energy-conservation, water saving, without the three wastes, pollution-free, low-carbon energy-saving, production new technology, make agricultural stalk resource, turn waste into wealth, support agriculture, rural areas and farmers, save timber, keep ecological balance, develop the economy, there are to major and immediate significance and far-reaching historic significance in China.
2, most of artificial sheet material on former market: the materials such as core-board, glued board, particieboard, medium density fibre board (MDF), not only aldehyde-containing type, benzene class harmful substance exceed standard, and high, the advantage such as efficiency is low, speed is slow, of poor quality, high in cost of production weakness, and the sheet material that adopts this patent new technology to produce has that power consumption is low, efficiency is high, speed is fast, Functionality, quality and appealing design, cost are low that consumes energy.Not aldehyde-containing type, benzene class, nontoxic, waterproof, mildew-resistant, Anti-moth-eating, fire-retardant, sound insulation, heat insulation environmental type product simultaneously, and have important light, intensity is high, can saw, can glue, can follow closely, the feature of good processability.Further deep processing is made light wall, heavily loaded packing case, heavy-duty tray, furniture, decorative panel, house decoraton member and handicraft etc. for wood products.Be the urgent need in market, market is extremely huge! Employing and the enforcement of this patented technology route and method, be scientific and reasonable Treating straw, makes its resource, preserves the ecological environment, and opened up a new way.
Accompanying drawing explanation:
Accompanying drawing 1, production procedure schematic diagram
Embodiment: (attached production procedure schematic diagram)
1, get 1000 kilograms of wheat straws (or straw), directly enter kneading or grinding leaser, raw material stranding is worn into velvet shape fiber stand-by.
2, boil high-adhesion environment-friendly type starch glue: 1050 kilograms of extracting corn starch, add 1300 kilograms, water, be placed with in the glue reactor of agitator, add 105 kg hydrogen peroxide, be oxidized 60 minutes, 40 ℃ of oxidizing temperatures, add 28 kilograms of NaOH, half gelatinization 30 minutes, 45 ℃ of gelatinization points, add 10.5 kilograms of complexing agent boraxs, add 26 kilograms of ARG water repellent agents, add PAE100 kilogram, while boiling 68 ℃, be incubated 30 minutes, milky paste (environment-friendly type starch glue) and get final product stand-by (solid content 45% ± 5%).
3, get 260 kilograms of velvet shape wheat straw fibers, 50 kilograms, potter's clay, 400 kilograms of amylans.In multi-functional mixer, through high speed, discongest stirring, fully mix and be uniformly dispersed, this material is injected to energy saving and environment friendly making sheet (or device) forming machine entrance, the even place mat of device of carrying through metering is in mould, through 1～3 minute, microwave treatment, material is raised to more than 100 ℃ by normal temperature, the demoulding that moves on of extrusion die conveyer belt.Mold pressing goes out the single sided board of the geometry shape of design configuration, and this single sided board is through glue spreader gluing and 500 grams/meter
2kraft paperboard compoundly through hot-rolling, roll, the high-strength board capable of replacing wood board of hollow cements, that is: energy saving and environment friendly high-strength board capable of replacing wood board section product machines.And then cutting into commodity according to market demand specification, water content is 10～15%, through putting in storage after the assay was approved.
Claims (2)
1. with stalk, produce the method for high-strength board capable of replacing wood board material, it is characterized in that: stalk is through kneading or grinding leaser or kibbling mill, velvet shape fiber is worn in stranding, its mass dryness fraction is 80～90%, to adding solid content in this velvet shape fiber, be 40～50% environment-friendly type starch glue, velvet shape fiber is 0.8～1 to 0.8～1 with the mass ratio of environment-friendly type starch glue, to improve quality by oven-dry weight, add appropriate reinforcing agent simultaneously, function additive, filler, put in multi-functional mixer, through discongesting at a high speed, mix and blend is dispersed into evenly loose material body, its solid content is 70% ± 5%, this material body is injected in special-purpose making sheet forming machine, through microwave treatment, temperature of charge is raised to more than 100 ℃ by normal temperature, environment-friendly type starch glue and fiber bonding are firmly, material is progressively pressurization in mould, mold pressing goes out to have the single sided board of geometric geometry shape, mass dryness fraction is 80～90%, after this single sided board gluing of warp-wise with millboard or other ornament materials, be combined into the high-strength board capable of replacing wood board material of hollow, described environment-friendly type starch glue, that starch is carried out to oxidative degradation through 10% ± 2% oxidant, under the condition stirring, through the gelatinization of heating hydro-oxidation sodium, gelatinization point is 56～72 ℃, paste agent consumption 1～10%, then add complexing agent, crosslinking agent, graft copolymerization reagent, terminator, waterproofing agent, reinforcing agent.
2. production method according to claim 1, is characterized in that: described mould is to adopt polytetrafluoroethylglass glass fiber band, polyethylene, polypropylene, rubber, the material that nonpolar molecule forms, microwave can see through these materials heats up material, the cementation of performance adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110038135.3A CN102179850B (en) | 2011-02-15 | 2011-02-15 | Manufacturing method for producing high-strength wood plate substitutes with straws |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110038135.3A CN102179850B (en) | 2011-02-15 | 2011-02-15 | Manufacturing method for producing high-strength wood plate substitutes with straws |
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| CN102179850A CN102179850A (en) | 2011-09-14 |
| CN102179850B true CN102179850B (en) | 2014-04-09 |
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| CN201110038135.3A Expired - Fee Related CN102179850B (en) | 2011-02-15 | 2011-02-15 | Manufacturing method for producing high-strength wood plate substitutes with straws |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505576A (en) * | 2011-11-21 | 2012-06-20 | 何学信 | Economic and environmental friendly technology for manufacturing cardboard paper and straw boards by using straws |
| CN103590284A (en) * | 2013-11-06 | 2014-02-19 | 枣庄超越玉米淀粉有限公司 | Production process of starch emulsion for papermaking |
| CN104210008A (en) * | 2014-08-04 | 2014-12-17 | 中山升科科技开发有限公司 | Composite material capable of substituting solid wood and preparation method of composite material |
Citations (8)
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| CH572696A5 (en) * | 1973-09-05 | 1976-02-13 | Siemens Ag Oesterreich | |
| CN1032637A (en) * | 1987-10-19 | 1989-05-03 | 四川建筑材料工业学院 | Fabrication method for high-strength pressed strawboard |
| WO1996005035A1 (en) * | 1994-08-12 | 1996-02-22 | Schilcher Industrieanlagen- Und Gerätebau Gesellschaft M B H | Heating device with a microwave generator |
| CN1307958A (en) * | 2001-03-23 | 2001-08-15 | 阎平 | Timer microwave drying and heat setting method and equipoment |
| CN1548287A (en) * | 2003-05-19 | 2004-11-24 | 电子科技大学 | Microwave hot forming apparatus |
| CN200984768Y (en) * | 2006-12-04 | 2007-12-05 | 刘联合 | Microwave drying wood pressure machine |
| CN201026640Y (en) * | 2007-03-24 | 2008-02-27 | 穆国君 | Heating press for high-density bamboo wood assembling material |
| CN102009425A (en) * | 2009-10-26 | 2011-04-13 | 范维金 | Method for manufacturing green environmental-friendly type wood product by grass in dry method and method for recycling secondary product |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5219378A (en) * | 1975-08-05 | 1977-02-14 | Tendou Mokko:Kk | Pressing machine for heat-f orming wooden thin plate |
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2011
- 2011-02-15 CN CN201110038135.3A patent/CN102179850B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH572696A5 (en) * | 1973-09-05 | 1976-02-13 | Siemens Ag Oesterreich | |
| CN1032637A (en) * | 1987-10-19 | 1989-05-03 | 四川建筑材料工业学院 | Fabrication method for high-strength pressed strawboard |
| WO1996005035A1 (en) * | 1994-08-12 | 1996-02-22 | Schilcher Industrieanlagen- Und Gerätebau Gesellschaft M B H | Heating device with a microwave generator |
| CN1307958A (en) * | 2001-03-23 | 2001-08-15 | 阎平 | Timer microwave drying and heat setting method and equipoment |
| CN1548287A (en) * | 2003-05-19 | 2004-11-24 | 电子科技大学 | Microwave hot forming apparatus |
| CN200984768Y (en) * | 2006-12-04 | 2007-12-05 | 刘联合 | Microwave drying wood pressure machine |
| CN201026640Y (en) * | 2007-03-24 | 2008-02-27 | 穆国君 | Heating press for high-density bamboo wood assembling material |
| CN102009425A (en) * | 2009-10-26 | 2011-04-13 | 范维金 | Method for manufacturing green environmental-friendly type wood product by grass in dry method and method for recycling secondary product |
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