CN105216088A - Preparation method and device for inorganic binder artificial board - Google Patents

Preparation method and device for inorganic binder artificial board Download PDF

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Publication number
CN105216088A
CN105216088A CN201510555803.8A CN201510555803A CN105216088A CN 105216088 A CN105216088 A CN 105216088A CN 201510555803 A CN201510555803 A CN 201510555803A CN 105216088 A CN105216088 A CN 105216088A
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microwave heating
inorganic binder
microwave
wood
based
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CN201510555803.8A
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Chinese (zh)
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樊自田
刘富初
杨力
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华中科技大学
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Abstract

The invention discloses a preparation method and device for an inorganic binder artificial board. The problems that the time is long and the efficiency is low when an existing artificial board thermoforming method and device are used for forming the inorganic binder artificial board are solved. The preparation method and device are used for efficient hot pressing, solidifying and forming of the inorganic binder artificial board. The preparation method comprises the steps of even material blending, thermoforming and microwave heating for rapid solidification. A microwave hot-pressing device used for the preparation method comprises a microwave heating cavity, a conveying component, a lifting and pressurizing component and a dehumidification component. The microwave hot-pressing device is used for conducting microwave heating, pressurizing and dehumidification on an artificial board blank at the same time. According to the preparation method and device for the inorganic binder artificial board, the heating efficiency is high; the solidification speed is high; regulation and control are easy; the industrial production can be achieved. The inorganic binder artificial board free of formaldehyde pollution can be efficiently prepared through the preparation method and device.

Description

一种无机粘结剂人造板的制备方法及装置 Method and apparatus for preparing an inorganic binder based panels

技术领域 FIELD

[0001] 本发明属于木材工业加热固化领域,更具体地,涉及一种无机粘结剂人造板的制备方法及装置。 [0001] The present invention belongs to the field of heat curing the wood industry, and more particularly, to a method and apparatus for preparing inorganic binder based panels.

背景技术 Background technique

[0002] 随着木材工业的不断发展,人造板应用范围也在持续扩大,越来越多的实木制品由人造板替代,其制品也为消费者广泛接受。 [0002] With the continuous development of the timber industry, wood-based panels application also continues to expand, more and more replaced by wood based panel products, their products are also widely accepted by consumers. 现在的人造板主要有胶合板、刨花板、纤维板等。 Now there are wood-based panels of plywood, particleboard, fiberboard and so on. 由于人造板优良的性能,产品主要用于家居行业、建筑行业、交通运输业等。 Due to the excellent performance of wood-based panels, mainly used for domestic industry, the construction industry, transportation and so on. 随着人们生活质量的提高,对环保和健康的需求增加,不含甲醛原料的无机粘结剂人造板成为了目前的研究热点。 With the improvement of people's quality of life, increasing demand for environmentally friendly and healthy, inorganic binder based panel formaldehyde-free raw materials has become a current research focus.

[0003] 无机粘结剂人造板可以从根本上解决甲醛释放的问题,近年来,研究者对人造板的无机粘结剂及制备工艺进行了一些研究。 [0003] The inorganic binder formaldehyde emission wood-based panels can solve the problem fundamentally, in recent years, researchers inorganic binder, wood-based panels and preparation of a number of studies. 但是无机粘结剂多为水溶液,现有的人造板热压成形是传导式加热,即由表及里地逐步加热,这样加热速度慢。 But mostly inorganic binder solution, a conventional wood-based panel is a hot press forming conduction heating, i.e., gradually heated outside to the inside, so that a slow heating rate. 因此,现有人造板热压成形方法及装置用于无机粘结剂人造板成形时,会出现加热固化时间长、水蒸汽难以快速逸出、生产效率低等问题,并且会增加无机粘结剂人造板内部孔隙、降低其强度。 Accordingly, the conventional hot - pressing molding method and apparatus for forming wood-based panels inorganic binder, low productivity problem occurs cured by heating for a long time, difficult to quickly escape of water vapor, and the inorganic binder increases wood-based panels internal voids, reduce its strength. 如专利文献CN200710157928公开了一种镁钙防火植物纤维板的制备方法,采取分层制备,再热压成型的方式,不仅制备效率低,层与层之间的粘结不均匀还容易造成断裂。 Patent Document CN200710157928 discloses a method for producing a calcium magnesium fireproof plant fiberboard take hierarchical prepared, then thermoforming manner, not only the production efficiency is low, non-uniform bonding between the layers is also likely to cause breakage. 因此,研究开发可快速加热固化无机粘结剂人造板的方法及装置具有重要的现实意义。 Therefore, research and development of a method and apparatus to quickly cure the inorganic binder based panel heating has important practical significance.

发明内容 SUMMARY

[0004] 针对现有技术的以上缺陷或改进需求,本发明提供了一种无机粘结剂人造板的制备方法及装置,解决现有无机粘结剂人造板加热固化步骤繁琐的问题。 [0004] To solve the above drawbacks of the prior art or the need for improvement, the present invention provides a method and apparatus for preparing inorganic binder based panels, wood-based panels to solve the conventional heat curing step of the inorganic binder cumbersome problem.

[0005] 本发明提供了一种无机粘结剂人造板的制备方法,包括以下步骤: [0005] The present invention provides a method for preparing inorganic binder based panel, comprising the steps of:

[0006] (I)将无机粘结剂与木制组分混匀,得到混合材料,无机粘结剂与木制组分的质量比为0.5:1〜3:1 ;所述无机粘结剂含有质量分数为50%〜100%的水玻璃; [0006] (I) an inorganic binder mixed with wooden components, to give mixed material, the mass ratio of the inorganic binder wooden component is 0.5: 1 ~ 3: 1; said inorganic binder containing a mass fraction of 50% ~ 100% of the water glass;

[0007] (2)将混合材料在模具中压制成形,得到人造板坯料; [0007] (2) mixing the material in a mold press forming, the blank obtained based panels;

[0008] (3)在除湿的条件下,对人造板还料的上下表面施加IMPa〜1MPa的压力,同时微波加热使人造板坯料在100°C〜200°C的温度下固化,得到无机粘结剂人造板; [0008] (3) under the conditions of dehumidification, pressure is applied to the upper and lower surfaces of the wood-based panels IMPa~1MPa further material, while the microwave heating based panel blank cured at a temperature of 100 ° C~200 ° C, to obtain an inorganic adhesive caking agent based panels;

[0009] 其中,所述微波加热为连续式微波加热或脉冲式微波加热,连续式微波加热即持续加热,直至人造板坯料中的水蒸气排出,脉冲式微波加热即每加热Imin〜2min,暂停1s〜30s,使得人造板坯料中的水蒸气排出。 [0009] wherein said microwave heating is a continuous microwave heating or microwave heating pulse, i.e. continuous microwave heating, heating was continued until the water vapor discharged based panels in the blank, i.e. pulsed microwave heating of each heating Imin~2min, suspended 1s~30s, so that water vapor discharged based panel blank.

[0010] 优选地,所述水玻璃的模数为2.0〜3.0。 [0010] Preferably, the modulus of 2.0~3.0 waterglass.

[0011] 优选地,所述无机粘结剂还含有质量分数为0%〜30%的抗湿剂,所述抗湿剂为硅溶胶、有机酯、氟硅酸钠、聚乙烯醇或有机硅油。 [0011] Preferably, the inorganic binder further contains a mass fraction of 0% ~ 30% of the anti-wetting agent, the anti-wetting agent is silica, organic esters, sodium fluoride, polyvinyl alcohol or silicone oil .

[0012] 优选地,所述无机粘结剂还含有质量分数为0%〜40%的增强剂,所述增强剂为二氧化硅粉末或白刚玉粉末。 [0012] Preferably, the inorganic binder further contains a mass fraction of 0% ~ 40% of a reinforcing agent, the reinforcing agent is silica powder or corundum powder.

[0013] 优选地,步骤⑵在压制的同时对混合材料以120°C〜180°C加热。 [0013] Preferably, the step of ⑵ heated while pressing the mixed material is 120 ° C~180 ° C.

[0014] 优选地,在步骤(3)之后,再在无机粘结剂人造板表面涂刷疏水剂。 [0014] Preferably, after step (3), then brushing the surface of the inorganic binder based panels hydrophobic agent.

[0015] 作为进一步优选地,所述疏水剂为防水漆、硅溶胶或石蜡。 [0015] As further preferred that the hydrophobic agent is a waterproof paint, silica or paraffins.

[0016] 按照本发明的另一方面,还提供了一种用于上述制备方法的微波热压装置,包括微波加热组件、微波加热腔和升降加压组件, [0016] According to another aspect of the present invention, there is provided a microwave apparatus of the above hot pressing for preparation, comprising a microwave heating element, microwave heating chamber and lifting pressing components,

[0017] 微波加热腔内的中下部固定有下支撑板,用于放置人造板坯料,微波加热腔的侧面设置有传输通道,所述微波加热组件包括微波盒体以及多个微波发生器,微波盒体设置于微波加热腔内的底部和/或顶部,多个微波发生器固定于微波盒体内,用于对人造板坯料微波加热;所述升降加压组件包括上压板、升降压头和锁紧机构,所述升降压头贯穿微波加热腔的顶部,并与上压板连接,用于控制上压板从上至下对人造板坯料施压,锁紧机构设置于微波加热腔的顶部,并围绕升降压头对其进行固定,所述下支撑板以及上压板上设置有通气孔,用于作为微波加热过程中蒸汽的逸出通道,通气孔与人造板坯料结合处设置有通气塞,通气塞上设置有多个小孔与通气孔相连,防止加压过程中人造板坯料变形。 [0017] The lower portion of the microwave heating chamber is fixed to the lower support plate, for placing wood-based panel blank the side of the microwave heating chamber is provided with a transmission channel, said microwave heating cartridge assembly comprises a microwave and a plurality of microwave generators, the microwave cartridge disposed in the microwave heating chamber bottom and / or top, a plurality of microwave generators is fixed to the case body of microwave, microwave heating blanks for wood-based panel; said lifter assembly comprises an upper pressing platen, and the lift ram a locking mechanism, the lifting ram through the top of the microwave heating chamber and is connected to the upper platen, the platen top to bottom for the control of wood-based panels pressing the blank, a locking mechanism is provided on the top of the microwave heating chamber, ram down and around its fixed, the lower support plate, and a vent hole is provided on the upper platen, a channel for the escape of steam during microwave heating, the vent hole is provided with a wood-based panel blank junction vent plug , the vent plug is provided with a plurality of apertures connected to the vent hole to prevent deformation of the blank during pressurization based panels.

[0018] 优选地,上述装置还包括传送组件,所述传送组件通过传输通道与下支撑板对接,用于将人造板坯料传送入微波加热腔,以及将无机粘结剂人造板传送出微波加热腔。 [0018] Preferably, the apparatus further comprises a transfer assembly, the transfer assembly through a transmission channel and the lower support plate abutment for wood-based panel blank transfer into the microwave heating chamber, and an inorganic binder based panel of a microwave heating transfer cavity.

[0019] 作为进一步优选地,所述传送组件包括链条以及传送轴。 [0019] As further preferred that the transfer assembly comprises a shaft and a transmission chain.

[0020] 优选地,上述装置还包括排湿管道和抽湿栗,排湿管道连接微波加热腔的内外,抽湿栗通过排湿管道将蒸汽抽出微波加热腔。 [0020] Preferably, the apparatus further comprises conduit and humidity dehumidifiers Li, dehumidifying pipe connections inside and outside the microwave heating chamber, Li dehumidifier dehumidifying pipe by steam out the microwave heating chamber.

[0021] 优选地,所述通气塞的材料为耐高温娃胶,所述小孔的直径为0.1mm〜0.5mm。 [0021] Preferably, the vent plug material is a high temperature resistant plastic baby, said aperture having a diameter of 0.1mm~0.5mm.

[0022] 总体而言,通过本发明所构思的以上技术方案与现有技术相比,通过使用微波热压方法取代现有技术中的热压固化方法,能够得到下列有益效果: [0022] In general, compared with the prior art contemplated by the above aspect of the present invention, substituted by hot curing the prior art method of hot press method using a microwave, the following advantageous effects can be obtained:

[0023] 1、利用微波加热取代传导式加热,无需预制多层板坯即可热压定型,简化了制备方法,克服了无机粘结剂人造板制备时间长的问题; [0023] 1, a substituted conduction heating using microwave heating, the multilayer mat can be prefabricated without hot-pressing, simplifies the manufacturing process to overcome the long inorganic binder prepared based panels of time;

[0024] 2、利用脉冲式微波加热,防止了加热温度过高对人造板的结构进行破坏,同时有利于人造板加热固化时水蒸气逸出,适于加热较厚的人造板; [0024] 2, the use of pulsed microwave heating, the heating temperature is too high to prevent the structural destruction of the wood-based panels, while facilitating the escape of water vapor during heat-curing wood-based panel, suitable for heating thick wood-based panel;

[0025] 3、利用水玻璃作为无机粘结剂的主要组分,使得无机粘结剂人造板在满足工程需求的同时减少了有害物质的排放,绿色环保; [0025] 3, using water glass as a main component of the inorganic binder, the inorganic binder based panels such that while meeting the engineering requirements to reduce emissions of harmful substances, green;

[0026] 4、该无机粘结剂人造板制备工艺简单,成本低廉,适用于大规模工艺生产。 [0026] 4, the inorganic binder based panel manufacturing process is simple, low cost, suitable for mass production process.

附图说明 BRIEF DESCRIPTION

[0027] 图1为本发明无机粘结剂人造板的制备方法流程图; [0027] FIG inorganic binder based panel production method of the present invention, a flow chart;

[0028] 图2为本发明微波热压装置结构示意图; [0028] FIG. 2 is a schematic structure of the present invention, a microwave heat pressing apparatus;

[0029] 其中,11人造板坯料;12加热中的人造板坯料;13无机粘结剂人造板;20传送组件;21传送轴;22链条;31通气孔;32通气塞;40微波加热组件;41微波盒体;42微波发生器;51微波加热腔;52传输通道;53下支撑板;61升降压头;62锁紧机构;63上压板;71抽湿栗;72排湿管道。 [0029] Among them, the wood-based panel blank; wood-based panels of the blank 12 is heated; inorganic binder based panels 13; transmission assembly 20; transmitting shaft 21; a chain 22; 31 vent; vent plug 32; microwave heating assembly 40; microwave cartridge body 41; microwave generator 42; the microwave heating chamber 51; transmission channel 52; 53 the lower support plate; lift ram 61; a locking mechanism 62; 63 on the platen; Li dehumidifier 71; 72 Moisture pipe.

具体实施方式 Detailed ways

[0030] 为了使本发明的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本发明进行进一步详细说明。 [0030] To make the objectives, technical solutions and advantages of the present invention will become more apparent hereinafter in conjunction with the accompanying drawings and embodiments of the present invention will be further described in detail. 应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。 It should be understood that the specific embodiments described herein are only intended to illustrate the present invention and are not intended to limit the present invention. 此外,下面所描述的本发明各个实施方式中所涉及到的技术特征只要彼此之间未构成冲突就可以相互组合。 Moreover, various embodiments of the invention described below involved the technical features as long as no conflict with one another can be configured in combination with each other.

[0031] 本发明提供了一种无机粘结剂人造板的制备方法,包括以下步骤: [0031] The present invention provides a method for preparing inorganic binder based panel, comprising the steps of:

[0032] (I)材料的混合 Mixing [0032] (I) Materials

[0033] 选择木片、木纤、锯木、木肩以及木丝中的一种或多种作为木制组分,同时准备无机粘结剂。 [0033] Select chips A wood fiber, sawn wood, and wood shoulder excelsior or more components as wood, while preparing the inorganic binder. 无机粘结剂可以为水玻璃,或者水玻璃与增强剂和/或抗湿剂的混合物,其中增强剂在无机粘合剂中的质量分数小于等于40%,抗湿剂在无机粘合剂中的质量分数小于等于30%,水玻璃的质量分数大于等于50%。 The inorganic binder may be water glass or water glass or a mixture of enhancing agent and / anti-wetting agent, wherein the enhancing agent in the inorganic binder content is 40% or less, the anti-wetting agent in the inorganic binder the mass fraction is less than or equal to 30% mass fraction greater than or equal to 50% sodium silicate.

[0034] 水玻璃的分子式为Na20.nSi02S K 20.nSi02,式中的系数η称为水玻璃模数,水玻璃的模数优选为2.0〜3.0,模数较高的水玻璃,粘结力较大,制成的人造板强度也较大,但操作时较难混合均匀,模数过低则粘结力较小,影响无机粘结剂人造板的强度。 [0034] waterglass formula Na20.nSi02S K 20.nSi02, called η coefficients in modulus of sodium silicate, the modulus is preferably 2.0~3.0 water glass, sodium silicate relatively high modulus, adhesion greater strength based panels made larger, but the operation is difficult to uniformly mix, the modulus is too low, adhesive force is small, the impact strength of the inorganic binder based panels.

[0035] 其中,增强剂为二氧化硅或者白刚玉粉末等用于增强无机粘合剂人造板的物质,抗湿剂为可与水玻璃混溶但不能与水混溶的有机溶剂,如硅溶胶、有机酯、氟硅酸钠、聚乙稀醇或有机娃油等。 [0035] wherein the reinforcing agent is silica or corundum powder inorganic binder based panels for enhancing substances, anti-wetting agent is sodium silicate, but can be miscible with water and immiscible organic solvent, such as silicon sol, organic esters, sodium fluoride, an organic alcohol or baby oil polyethylene.

[0036] 将无机粘结剂与木制组分以0.5:1〜3:1的质量比混合并搅拌混匀,得到混合材料;粘结剂加入量过低时,混合材料难以搅拌均匀且制得的人造板强度偏低;粘结剂加入量过高时,在加热时容易出现气泡,使得人造板材中间出现不均匀的空隙。 [0036] The inorganic binder with the wood component is 0.5: 1 ~ 3: 1 mass ratio of the mixed and stirred to obtain a mixed material; when the amount of the binder added is too low, it is difficult to stir and mix the material prepared too low intensity of the wood-based panel; when the amount of the binder added is too high, bubbles easily occur when heated, so that the intermediate plate uneven voids in man.

[0037] (2)压制成形 [0037] (2) press-molding

[0038] 根据制品的厚度在模具中铺制混合材料,并初步压制成形,同时可辅以120°C〜180°C加热5s〜30s,得到人造板还料;这一步的目的在于把半固态的混合材料压制成固态的坯料,以便进行微波热压固化。 [0038] The thickness of the article in the mold shop system mixed material, and a preliminary press molding, while heating 5s~30s supplemented with 120 ° C~180 ° C, to give further material based panels; purpose of this step is that the semi-solid the mixed material pressed into a solid billet, hot-press curing for microwave.

[0039] (3)微波加热快速固化 [0039] (3) the microwave heating fast curing

[0040] 在除湿的条件下,对人造板还料的上下表面施加IMPa〜1MPa的压力,同时微波加热使人造板坯料在100°C〜200°C的温度下固化,得到无机粘结剂人造板;加压时压力过高会导致无机粘结剂从人造板溢出,压力太低会导致人造板不够紧实,都会导致人造板强度降低。 [0040] Under conditions dehumidified, pressure is applied to the upper and lower surfaces of the wood-based panels IMPa~1MPa further material, while the microwave heating based panel blank cured at a temperature of 100 ° C~200 ° C, to give inorganic binder artificial plate; pressing pressure is too high when the inorganic binder cause overflow from plywood, wood-based panels is not enough pressure is too low will lead to compaction, will result in reduced strength of the wood-based panels.

[0041] 由于加热时人造板坯料的温度高于200°C容易破坏无机粘合剂人造板的性能,低于100°C则影响加热效率;因此微波加热为连续式微波加热或脉冲式微波加热,对于厚度小于50_的人造板更适用于连续式微波加热,即一直加热直至人造板坯料中的水蒸气排出,对于厚度大于等于50mm的人造板则更适用于脉冲式微波加热,即每加热Imin〜2min,暂停1s〜30s,使得人造板坯料中的水蒸气排出,同时防止持续加热温度过高对人造板造成破坏。 [0041] Since the wood-based panels billet heating temperature above 200 ° C is easy to damage the performance of the wood-based panel the inorganic binder, less than 100 ° C affect the heating efficiency; thus the microwave heating is continuous microwave heating or microwave heating pulse for wood-based panel thickness less than 50 a is more suitable for continuous microwave heating, i.e. heating up the steam has been discharged based panel blank, for a thickness of 50mm or greater is more suitable for wood-based pulsed microwave heating, heating per Imin~2min, pause 1s~30s, so that water vapor discharged based panel blank, high temperature heating is continued while preventing damage to the wood-based panels.

[0042] 其中,可以在步骤(3)之后,再在无机粘结剂人造板表面涂刷防水漆、硅溶胶、石蜡等疏水剂,用于增强无机粘结剂人造板的抗潮湿性能。 [0042] wherein, in the step after (3), and then brushing waterproof paint, silica, paraffin water repellent wood-based panels in the surface of the inorganic binder, for enhancing the moisture resistance of the inorganic binder based panels.

[0043] 按照本发明的另一方面,还提供了一种用于上述制备方法的微波热压装置,包括微波加热组件、微波加热腔和升降加压组件: [0043] According to another aspect of the present invention, there is provided a microwave apparatus of the above hot pressing for preparation, comprising a microwave heating element, microwave heating chamber and lifting the press unit:

[0044] 微波加热腔内的中下部固定有下支撑板,用于放置人造板坯料,微波加热腔的侧面设置有传输通道,所述微波加热组件包括微波盒体以及多个微波发生器,微波盒体设置于微波加热腔内的底部和/或顶部,多个微波发生器固定于微波盒体内,用于对人造板坯料均匀微波加热;所述升降加压组件包括上压板、升降压头和锁紧机构,所述升降压头贯穿微波加热腔的顶部,并与上压板连接,用于控制上压板从上至下对人造板坯料施压,锁紧机构设置于微波加热腔的顶部,并围绕升降压头对其进行固定,所述下支撑板以及上压板上设置有通气孔,用于作为微波加热过程中蒸汽的逸出通道,通气孔与人造板坯料结合处设置有通气塞,通气塞上设置有多个小孔与通气孔相连,防止加压过程中人造板坯料变形,通气塞的材料可为耐高温娃胶等非金属耐高温材 [0044] In the lower portion of the microwave heating chamber is fixed to the lower support plate, for placing wood-based panel blank the side of the microwave heating chamber is provided with a transmission channel, said microwave heating cartridge assembly comprises a microwave and a plurality of microwave generators, the microwave cartridge disposed in the microwave heating chamber bottom and / or top, a plurality of microwave generators is fixed to the case body microwave, wood-based panel blank for uniform microwave heating; the lifting assembly comprises an upper pressing platen lift ram and a locking mechanism, the lifting ram through the top of the microwave heating chamber and is connected to the upper platen, the platen top to bottom for the control of wood-based panels pressing the blank, a locking mechanism is provided on top of the microwave heating chamber , head-down and around its fixed, the lower support plate, and a vent hole is provided on the upper platen, a channel for the escape of steam during microwave heating, the vent hole is provided with a wood-based panel blank junction ventilation plug, the vent plug is provided with a plurality of apertures connected to the vent hole to prevent deformation of the billet based panels during pressurization, a vent plug material may be a high temperature resistant non-metallic refractory material, such as plastic baby ,通气塞的小孔直径优选为0.1mm〜0.5mmο , Vent plug pore diameter is preferably 0.1mm~0.5mmο

[0045] 传送组件可由链条以及传送轴组成,其通过传输通道与下支撑板对接,用于将人造板坯料传送入微波加热腔,以及将无机粘结剂人造板传送出微波加热腔。 [0045] The transport component may be composed of a chain and a transmission shaft, which through a transmission channel and the lower support plate abutment for wood-based panel blank transfer into the microwave heating chamber, and an inorganic binder based panel transfer the microwave heating chamber.

[0046] 该装置还可以包括排湿管道和抽湿栗,排湿管道连接微波加热腔的内外,抽湿栗通过排湿管道将蒸汽抽出微波加热腔。 [0046] The apparatus may further comprise conduit and humidity dehumidifiers Li, dehumidifying pipe connections inside and outside the microwave heating chamber, Li dehumidifier dehumidifying pipe by steam out the microwave heating chamber.

[0047] 本发明实施例中,微波加热快速固化所用的微波热压装置如图2所示,该装置包括传送组件20、微波加热腔51、传送组件20、升降加压组件、微波加热组件40以及除湿组件。 [0047] The embodiments of the present invention, rapid curing microwave microwave heating apparatus used in hot pressing shown in Figure 2, the apparatus comprises a transfer assembly 20, the microwave heating chamber 51, the transfer assembly 20, the lift assembly pressure, microwave heating assembly 40 and dehumidification components.

[0048] 装置两侧的传送组件20包括链条22以及传送轴21,用于将人造板坯料11传送入微波加热腔51,以及将固化完成的无机粘结剂人造板13传送出微波加热腔51。 Transfer component [0048] The apparatus 20 includes a chain 22 on both sides and a transmission shaft 21 for transmitting a transmission based panel material 11 into the microwave heating chamber 51, and an inorganic binder cured wood-based panel 13 to complete the microwave heating chamber 51 .

[0049] 微波加热腔51内的中下部固定有下支撑板53,用于放置人造板坯料12,微波加热腔51的两侧分别设置有传输通道52,下支撑板53通过传输通道52分别与两侧的传送组件20对接。 [0049] in the lower part of the microwave heating chamber 51 is fixed to the lower support plate 53, the blank 12 for placement of wood-based panels, on both sides of the microwave heating chamber 51 are respectively provided with a transmission channel 52, the lower support plate 53 and 52 respectively, through the transmission channel both sides of the transmission assembly 20 docked.

[0050] 升降加压组件包括上压板63、升降压头61和锁紧机构62,升降压头61贯穿微波加热腔51的顶部中央,并与上压板63连接,用于对人造板坯料12从上至下施压,锁紧机构62设置于微波加热腔51的顶部,并围绕升降压头61对其进行固定。 [0050] The lifting assembly includes an upper pressing platen 63, lift ram 61 and the locking mechanism 62, the ram 61 down through the top center of the microwave heating cavity 51, and is connected to the upper platen 63, the blank for wood-based panels 12 pressure from top to bottom, a locking mechanism 62 disposed at the top of the microwave heating cavity 51, and down around the ram 61 be fixed.

[0051] 下支撑板53以及上压板53上设置有多个直径为Icm通气孔31,作为加热过程中蒸汽的逸出通道;通气孔31与人造板坯料接触的一侧12,设置有耐高温硅胶制成的通气塞32,通气塞32上设置有多个直径为0.1mm的小孔与通气孔31相连,通气塞与人造板坯料12的结合处与下支撑板53的上表面或者上压板53的下表面平齐,以防止加压过程中人造板坯料12进入通气孔而表面不平整。 [0051] The lower support plate 53 and top plate 53 disposed on a plurality of vent holes 31 having a diameter of Icm as steam to escape during heating channel; side of the vent 31 is in contact with the wood-based panels of the blank 12 is provided with a high temperature vent plug 32 made of silicone, a vent plug provided with a plurality of holes having a diameter of 0.1mm is connected to the vent 31, the vent plug and wood-based panel the upper surface of the blank to the junction of the lower support plate 12 on the platen 53 or 32 flush with the lower surface 53 to prevent pressurization process based panel blank 12 into the vent hole surface irregularities.

[0052] 微波加热组件40包括微波盒体41以及多个微波发生器42,微波盒体41设置于微波加热腔51内的底部和/或顶部,多个微波发生器42固定于微波盒体41内。 [0052] Microwave heating cartridge assembly 40 includes a body 41 and a plurality of microwave microwave generator 42, a microwave cartridge body 41 is provided in the bottom of the microwave heating chamber 51 and / or top, a plurality of microwave generator 42 is fixed to the cartridge body 41 microwave Inside.

[0053] 除湿组件包括排湿管道72和抽湿栗71,排湿管道72连接微波加热腔51的内外,抽湿栗71用于将蒸汽通过排湿管道72排出微波加热腔51。 [0053] The assembly comprises a desiccant dehumidifier dehumidifying pipes 72 and 71 Li, humidity inside and outside the pipe 72 is connected, Li dehumidifier 71 of the microwave heating chamber 51 for discharging steam through a microwave heating chamber 51 Moisture conduit 72.

[0054] 装置的工作过程是:将未固化的人造板坯料11经传送组件20通过微波加热腔51上的传输通道52传送至微波加热腔51中并放置于下支撑板53上,调节升降压头61和锁紧机构62,令上压板63下降并覆盖于人造板坯料12上,对之施加一定的压力并进行微波加热,同时开启抽湿栗71,令微波加热产生的蒸汽通过排湿管道72排出微波加热腔51 ;每加热Imin〜2min,暂停1s〜30s,使人造板还料中的水蒸气排出,可同时抬起上压板63,加速的水蒸气排出;加热完成后,调节升降压头61和锁紧机构62,令上压板63升起并松开无机粘结剂人造板13,无机粘结剂人造板13通过微波加热腔51上的传输通道52传送出微波加热腔51。 [0054] The working process of the device are: the uncured composite wood blank 11 through the transmission assembly 20 transmits through the transmission path 51 on the microwave heating chamber 52 through the microwave heating chamber 51 and placed on the lower support plate 53, the lift adjustment the ram 61 and the locking mechanism 62, so that the platen cover 63 lowered and the blank 12 on the wood-based panels, exert a certain pressure and the microwave heating, while Li dehumidifier 71 open, so that the steam generated by the microwave heating humidity the discharge pipe 72 the microwave heating chamber 51; each heating Imin~2min, suspended 1s~30s, so that water vapor discharged based panel further compound, the platen 63 can be lifted simultaneously, to accelerate water vapor is discharged; heating is completed, adjustment liters buck head 61 and locking mechanism 62, so that the upper platen 63 is raised and release the inorganic binder based panels 13, 13 transmit through the transmission channel based panels inorganic binder in the microwave heating chamber of a microwave heating chamber 51 52 51 .

[0055] 实施例1 [0055] Example 1

[0056] (I)将木肩作为木制组分与无机粘结剂以1:3的质量比在搅拌机中混合均匀,得到混合材料;无机粘结剂的成分为模数为2.0的钠水玻璃; [0056] (I) as the timber shoulder and the inorganic binder component of wood 1: 3 mass ratio uniformly mixed in a mixer, to obtain a mixed material; component of the inorganic binder is a sodium water-modulo 2.0 glass;

[0057] (2)将混合材料在铺装在压板模具中150°C热压1s成形,脱模得到人造板坯料; [0057] (2) mixing the material in 150 ° C hot pavement 1s formed in the platen mold release obtained based panel blank;

[0058] (3)将人造板还料送入微波热压装置在IMPa的压力下微波加热2min,使人造板还料的温度达到150°C,使人造板坯料中的水蒸气排出,同时开启除湿组件使之固化,得到无机粘结剂人造板。 [0058] (3) the wood-based panels further pressing material into a microwave apparatus under a pressure of IMPa microwave heating 2min, but also man-made board material so that the temperature reaches 150 ° C, so that water vapor discharged based panels in the blank, while the opening dehumidifying assembly and cured, to give inorganic binder based panels.

[0059] 按照上述步骤多次制备无机粘合剂人造板,按照GB/T 17657— 2013规定的三点弯曲法测得静曲强度为17MPa〜19MPa。 [0059] Preparation of an inorganic binder based panel according to the above steps a plurality of times, in accordance with a predetermined three-point bending GB / T 17657- 2013 MOR is measured 17MPa~19MPa.

[0060] 实施例2 [0060] Example 2

[0061] (I)将木片作为木制组分与无机粘结剂以2:1的质量比在搅拌机中混合均匀,得到混合材料;无机粘结剂的成分为模数为3.0的钠水玻璃; [0061] (I) the wood chips as a component with an inorganic binder to 2: 1 mass ratio mixed in a mixer, to obtain a mixed material; component of the inorganic binder is sodium silicate modulus 3.0 ;

[0062] (2)将混合材料在压板模具中压制成形,得到人造板坯料; [0062] (2) The mixed material is molded in a platen press mold, to obtain artificial board blank;

[0063] (3)将人造板坯料送入微波热压装置1MPa的压力下进行微波加热4min,使人造板坯料的温度达到200°C,每加热lmin,暂停30s,使人造板坯料中的水蒸气排出,同时开启除湿组件使之固化,得到无机粘结剂人造板。 Carried out in the [0063] (3) hot-pressing the wood-based panel blank into a microwave heating apparatus of a microwave pressure 1MPa 4min, wood-based panels of the blank so that the temperature reaches 200 ° C, each heated lmin, pause 30s, the water in the wood-based panel blank vapor discharge opening while the dehumidifying assembly and cured, to give inorganic binder based panels.

[0064] 按照上述步骤多次制备无机粘合剂人造板,按照GB/T 17657— 2013规定的三点弯曲法测得静曲强度为15MPa〜17MPa。 [0064] Preparation of an inorganic binder based panel according to the above steps a plurality of times, in accordance with a predetermined three-point bending GB / T 17657- 2013 MOR is measured 15MPa~17MPa.

[0065] 实施例3 [0065] Example 3

[0066] 以所述的相同步骤重复实施例1,区别在于,无机粘结剂的成分为模数为2.0的钾水玻璃,步骤(3)中微波加热固化时间为3min,温度为180°C,微波加热时施加的压力为5MPa,在步骤(3)之后,在无机粘结剂人造板表面涂刷防水漆进行防水处理。 [0066] The same procedure as described in Example 1 was repeated, except that, the inorganic binder component of the modulus of potassium silicate of 2.0, the step (3) was heated in a microwave curing time 3min, a temperature of 180 ° C the pressure applied to the microwave heating 5 MPa, after the step (3), water-repellent treatment on the adhesive surface of the inorganic based panels waterproof paint brush.

[0067] 按照上述步骤多次制备无机粘合剂人造板,按照GB/T 17657— 2013规定的三点弯曲法测得静曲强度为18MPa〜20MPa。 [0067] Preparation of an inorganic binder based panel according to the above steps a plurality of times, in accordance with a predetermined three-point bending GB / T 17657- 2013 MOR is measured 18MPa~20MPa.

[0068] 实施例4 [0068] Example 4

[0069] 以所述的相同步骤重复实施例1,区别在于,步骤(3)在微波加热的同时对人造板坯料施加5MPa的压力。 [0069] The same procedure as described in Example 1 was repeated, except that, in step (3) applying a pressure of 5MPa blank wood-based panels while microwave heating.

[0070] 按照上述步骤多次制备无机粘合剂人造板,按照GB/T 17657— 2013规定的三点弯曲法测得静曲强度为18MPa〜23MPa。 [0070] Preparation of an inorganic binder based panel according to the above steps a plurality of times, in accordance with a predetermined three-point bending GB / T 17657- 2013 MOR is measured 18MPa~23MPa.

[0071] 实施例5 [0071] Example 5

[0072] 以所述的相同步骤重复实施例1,区别在于,无机粘结剂包括质量分数为80%的钠水玻璃以及质量分数为20%的二氧化硅粉末。 [0072] The same procedure as described in Example 1 was repeated, except that, the inorganic binder comprising a mass fraction of 80% sodium waterglass and a mass fraction of 20% of silica powder.

[0073] 按照上述步骤多次制备无机粘合剂人造板,按照GB/T 17657— 2013规定的三点弯曲法测得静曲强度为18MPa〜21MPa。 [0073] Preparation of an inorganic binder based panel according to the above steps a plurality of times, in accordance with a predetermined three-point bending GB / T 17657- 2013 MOR is measured 18MPa~21MPa.

[0074] 实施例6 [0074] Example 6

[0075] 以所述的相同步骤重复实施例1,区别在于,无机粘结剂包括质量分数为85%的钾水玻璃以及质量分数为15%的硅溶胶。 [0075] The same procedure as described in Example 1 was repeated, except that, the inorganic binder comprising a mass fraction of 85% potassium silicate and a mass fraction of 15% silica sol.

[0076] 按照上述步骤多次制备无机粘合剂人造板,按照GB/T 17657— 2013规定的三点弯曲法测得静曲强度为18MPa〜20MPa。 [0076] Preparation of an inorganic binder based panel according to the above steps a plurality of times, in accordance with a predetermined three-point bending GB / T 17657- 2013 MOR is measured 18MPa~20MPa.

[0077] 实施例7 [0077] Example 7

[0078] 以所述的相同步骤重复实施例1,区别在于,其混合材料的总量为实施例1的三倍,步骤(3)中每加热Imin〜2min,暂停1s〜30s (第一次加热2min,暂停30s,之后加热时长逐渐缩短,以控制人造板坯料的温度不超过200°C ),使人造板坯料中的水蒸气排出,同时开启除湿组件使之固化。 [0078] The same procedure as described in Example 1 was repeated, except that the total amount of mixed material which is three times of Example 1, Step (3) in each heated Imin~2min, suspended 1s~30s (first heated 2min, pause 30s, long after the heating time is gradually shortened, to control wood-based panels billet temperature does not exceed 200 ° C), so that water vapor discharged based panels in the blank are turned on simultaneously to cure the dehumidifying assembly. 总共加热7min得到无机粘结剂人造板。 7min inorganic binder to give a total heating wood-based panels.

[0079] 实施例8 [0079] Example 8

[0080] 以所述的相同步骤重复实施例1,区别在于,无机粘结剂由50wt%的钾水玻璃、30界七%的氟硅酸钠以及20wt%的白刚玉粉末组成,步骤(2)中120°C热压30s成形。 [0080] The same procedure as described in Example 1 was repeated, except that the inorganic binder is made of 50wt% of potassium silicate, seven percent of the sector 30 and 20wt% of sodium fluoride powder composition corundum, Step (2 ) in 120 ° C hot press forming 30s.

[0081] 实施例9 [0081] Example 9

[0082] 以所述的相同步骤重复实施例1,区别在于,无机粘结剂由59wt%的钾水玻璃、lwt%的氯化镁、20wt%的二氧化硅粉末以及20wt%的白刚玉粉末组成,步骤(2)中180°C热压1s成形。 [0082] The same procedure as described in Example 1 was repeated, except that, the inorganic binder of 59wt% of potassium silicate, lwt% of magnesium, 20wt% and 20wt% of silica powder consisting of corundum powder, step (2) is 180 ° C 1s hot press forming.

[0083] 实施例10 [0083] Example 10

[0084] 以所述的相同步骤重复实施例1,区别在于,步骤(3)中微波加热固化的温度为10tCo [0084] The same procedure as described in Example 1 was repeated, except that, in step (3) the curing temperature of the microwave heating 10tCo

[0085] 本领域的技术人员容易理解,以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。 [0085] Those skilled in the art will readily appreciate, the above-described preferred embodiment of the present invention only but are not intended to limit the present invention, any modifications within the spirit and principle of the present invention, equivalent substitutions, and improvements, etc., should be included within the scope of the present invention.

Claims (10)

1.一种无机粘结剂人造板的制备方法,其特征在于,包括以下步骤: (1)将无机粘结剂与木制组分混匀,得到混合材料,无机粘结剂与木制组分的质量比为0.5:1〜3:1 ;所述无机粘结剂含有质量分数为50%〜100%的水玻璃; (2)将混合材料在模具中压制成形,得到人造板坯料; (3)在除湿的条件下,对人造板还料的上下表面施加IMPa〜1MPa的压力,同时微波加热使人造板坯料在100°C〜200°C的温度下固化,得到无机粘结剂人造板; 其中,所述微波加热为连续式微波加热或脉冲式微波加热,连续式微波加热即持续加热,直至人造板还料中的水蒸气排出,脉冲式微波加热即每加热Imin〜2min,暂停1s〜30 s,使得人造板坯料中的水蒸气排出。 1. A method for preparing inorganic binder based panels, characterized by comprising the steps of: (1) mixing the inorganic binder with wood components, to give mixed material, an inorganic binder and wooden group mass ratio of 0.5 min: 1~3: 1; the inorganic binder contains a mass fraction of 50% ~ 100% of the water glass; (2) the mixed material in a mold press forming, the blank obtained based panels; ( 3) under the conditions of dehumidification, pressure is applied to the upper and lower surfaces of the wood-based panels IMPa~1MPa further material, while the microwave heating based panel blank cured at a temperature of 100 ° C~200 ° C, to give inorganic binder based panels ; wherein said microwave heating is a continuous microwave heating or microwave heating pulse, i.e. continuous microwave heating, heating was continued until the wood-based panels further feedstock vapor discharge, i.e. pulsed microwave heating of each heating Imin~2min, suspended 1s ~30 s, so that water vapor discharged based panel blank.
2.如权利要求1所述的制备方法,其特征在于,所述水玻璃的模数为2.0〜3.00 2. The method as recited in claim 1, wherein said water glass modulus 2.0~3.00
3.如权利要求1所述的制备方法,其特征在于,所述无机粘结剂还含有质量分数为O %〜30 %的抗湿剂,所述抗湿剂为硅溶胶、有机酯、氟硅酸钠、聚乙烯醇或有机硅油。 3. The method as recited in claim 1, wherein said inorganic binder further contains a mass fraction of O% ~30% of anti-wetting agent, the anti-wetting agent is silica, organic esters, fluoro sodium silicate, polyvinyl alcohol or silicone oil.
4.如权利要求1所述的制备方法,其特征在于,所述无机粘结剂还含有质量分数为O %〜40 %的增强剂,所述增强剂为二氧化硅粉末或白刚玉粉末。 4. The method as recited in claim 1, wherein said inorganic binder further contains a mass fraction of O% ~40% of a reinforcing agent, the reinforcing agent is silica powder or corundum powder.
5.如权利要求1所述的制备方法,其特征在于,步骤(2)在压制的同时对混合材料以120°C 〜180°C 加热。 5. The method as recited in claim 1, wherein the step (2) was heated to 120 ° C ~180 ° C while the mixed material is pressed.
6.一种微波热压装置,用于如权利要求1-5中任意一项所述的制备方法,包括微波加热组件、微波加热腔和升降加压组件,其特征在于: 微波加热腔内的中下部固定有下支撑板,用于放置人造板坯料,微波加热腔的侧面设置有传输通道,所述微波加热组件包括微波盒体以及多个微波发生器,微波盒体设置于微波加热腔内的底部和/或顶部,多个微波发生器固定于微波盒体内,用于对人造板坯料微波加热;所述升降加压组件包括上压板、升降压头和锁紧机构,所述升降压头贯穿微波加热腔的顶部,并与上压板连接,用于控制上压板从上至下对人造板坯料施压,锁紧机构设置于微波加热腔的顶部,并围绕升降压头对其进行固定,所述下支撑板以及上压板上设置有多个通气孔,用于作为微波加热过程中蒸汽的逸出通道,通气孔与人造板坯料结合处设置有通气 A microwave pressing apparatus, as claimed for the preparation process of any one of claims 1-5, comprising a microwave heating element, microwave heating chamber and lifting pressing assembly, wherein: the microwave heating chamber in the lower portion of the lower support plate is fixed, for placing wood-based panel blank the side of the microwave heating chamber is provided with a transmission channel, said microwave heating cartridge assembly comprises a microwave and a plurality of microwave generators, the microwave heating cartridge disposed in the microwave cavity bottom and / or top, a plurality of microwave generators is fixed to the case body of microwave, microwave for heating the billet wood-based panels; said lifter assembly comprises an upper pressing platen lift ram and locking mechanism, the lifting ram through the top of the microwave heating chamber, and connected to the upper platen, the platen top to bottom for the control of wood-based panels pressing the blank, a locking mechanism is provided on the top of the microwave heating chamber, and around its head down is fixed, the lower support plate is provided on the top plate and a plurality of vent holes, as a channel for the escape of steam during microwave heating, the vent hole is provided with a wood-based panel blank junction ventilation ,通气塞上设置有多个小孔与通气孔相连,防止加压过程中人造板坯料变形。 , The vent plug is provided with a plurality of apertures connected to the vent hole to prevent deformation of the blank during pressurization based panels.
7.如权利要求6所述装置,其特征在于,还包括传送组件,通过所述传输通道与下支撑板对接,用于将人造板坯料传送入微波加热腔,以及将无机粘结剂人造板传送出微波加热腔。 7. The apparatus as claimed in claim 6, characterized in that, further comprising a transfer assembly, through the transmission channel and the lower support plate abutment for wood-based panel blank transfer into the microwave heating chamber, and an inorganic binder based panels transmitting the microwave heating chamber.
8.如权利要求7所述装置,其特征在于,所述传送组件包括链条以及传送轴。 The apparatus as claimed in claim 7, wherein said transport assembly comprises a shaft and a transmission chain.
9.如权利要求6所述装置,其特征在于,还包括排湿管道和抽湿栗,排湿管道连接微波加热腔的内外,抽湿栗通过排湿管道将蒸汽抽出微波加热腔。 9. The apparatus as claimed in claim 6, wherein further comprising a humidity and a dehumidifying duct Li, dehumidifying pipe connections inside and outside the microwave heating chamber, Li dehumidifier dehumidifying pipe by steam out the microwave heating chamber.
10.如权利要求6所述装置,其特征在于,所述通气塞的材料为耐高温硅胶,所述小孔的直径为0.1謹〜0.5謹。 10. The apparatus as claimed in claim 6, wherein the vent plug material is a high temperature silicone, said aperture having a diameter of 0.1 ~ 0.5 should like to honor.
CN201510555803.8A 2015-09-01 2015-09-01 Preparation method and device for inorganic binder artificial board CN105216088A (en)

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