CN206853691U - A kind of off-gas cleaning equipment using the fluffy base optic catalytic cellular activated carbon of Chinese chestnut fruit - Google Patents
A kind of off-gas cleaning equipment using the fluffy base optic catalytic cellular activated carbon of Chinese chestnut fruit Download PDFInfo
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- 238000004140 cleaning Methods 0.000 title claims description 6
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- 239000007789 gas Substances 0.000 claims abstract description 37
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- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 10
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- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 abstract description 6
- 238000000465 moulding Methods 0.000 abstract description 5
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- 241000219991 Lythraceae Species 0.000 abstract description 3
- 235000014360 Punica granatum Nutrition 0.000 abstract description 3
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- -1 ultraviolet lamp Chemical compound 0.000 abstract description 2
- 238000003763 carbonization Methods 0.000 abstract 1
- 238000007654 immersion Methods 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 description 14
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000003756 stirring Methods 0.000 description 6
- 239000001569 carbon dioxide Substances 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 3
- 239000010815 organic waste Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000003039 volatile agent Substances 0.000 description 3
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
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- 239000004927 clay Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000011280 coal tar Substances 0.000 description 2
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- PGOOBECODWQEAB-UHFFFAOYSA-N (E)-clothianidin Chemical compound [O-][N+](=O)\N=C(/NC)NCC1=CN=C(Cl)S1 PGOOBECODWQEAB-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
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Abstract
一种采用板栗果蓬基光催化蜂窝活性炭的废气净化设备，它为横截面正方形的长方体，它由废气进口、安装支座、设备壳体、活性炭放置网支撑脚、蜂窝活性炭、紫外灯管、活性炭放置网、清洁气体排出口、维修门密封材料和维修门所构成。废气进口在底部，清洁气体排出口在顶部；在设备壳体内部自下往上均匀设置多层活性炭放置网，在每层活性炭放置网下方设置多支紫外灯管，在每层活性炭放置网上堆放蜂窝活性炭，在顶层活性炭放置网上方设置多支紫外灯管。蜂窝活性炭系板栗果蓬经粉碎后与磷酸混合被塑化，在塑化料添加适量木焦油并经研磨捏合、成型、干燥硬化、炭化、活化、浸洗、干燥工序制得蜂窝活性炭，再经纳米二氧化钛悬浮液浸渍并干燥等步骤而制得。
A kind of waste gas purification equipment using chestnut fruit pomegranate-based photocatalytic honeycomb activated carbon, which is a cuboid with a square cross section, which consists of waste gas inlet, installation support, equipment shell, activated carbon placement net support feet, honeycomb activated carbon, ultraviolet lamp, Activated carbon storage net, clean gas outlet, maintenance door seal material and maintenance door. The exhaust gas inlet is at the bottom, and the clean gas outlet is at the top; multi-layer activated carbon placement nets are evenly arranged inside the equipment shell from bottom to top, and multiple ultraviolet lamp tubes are arranged under each layer of activated carbon placement nets, and stacked on each layer of activated carbon placement nets Honeycomb activated carbon, a plurality of ultraviolet lamp tubes are set above the top layer of activated carbon placement net. The honeycomb activated carbon-based chestnut fruit canopy is crushed and mixed with phosphoric acid to be plasticized, and an appropriate amount of wood tar is added to the plasticized material, and the honeycomb activated carbon is obtained through grinding and kneading, molding, drying and hardening, carbonization, activation, immersion, and drying processes, and then processed It is prepared by impregnating and drying the nano titanium dioxide suspension.
Description
一、技术领域1. Technical field
本实用新型涉及环保领域的气体净化设备，尤其是一种采用板栗果蓬基光催化蜂窝活性炭的废气净化设备。The utility model relates to gas purification equipment in the field of environmental protection, in particular to a waste gas purification equipment using chestnut poncho-based photocatalytic honeycomb activated carbon.
二、背景技术2. Background technology
在许多生产和生活环境中都存在着有机挥发物污染空气的情况，如涂料生产车间、家具油漆车间、新装修的办公或住宅房间空气中都含有甲醛、苯系有机物或其他有机溶剂挥发物，如果人长期处于含有这些有机挥发物的环境中，对身体有较大危害，甚至有致癌的隐患，对这些有机废气进行净化处理是非常必要的。活性炭已广泛应用于治理空气和水质污染，常用的为颗粒活性炭，近年来开发了蜂窝活性炭，使用较方便，在市场上很受欢迎，但目前这类窝活性炭是在煤粉或木炭粉中加入煤焦油等粘结剂经搅拌混合、压制成型，再用水蒸汽活化而制成的，其孔隙结构以微孔为主，中孔很少，吸附去除较大分子有机气体如苯系物的容量较小，同时，这类蜂窝活性炭吸附饱和后再生较麻烦，使用一定时间后就必须更换，使用成本较高，即使通过再生也难以恢复到原吸附量。近年来，已有可再生的蜂窝活性炭的专利报导，如申请号为201410728499.8的发明专利“一种光降解甲醛蜂窝活性炭的制备方法”，其特征是以成品粉状活性炭与复合粘结剂混合搅拌均匀后用模具压制成型，经高温处理后浸入纳米TiO2悬浮液，再经加热烘干而制得，它的吸附量由粉状活性炭的性能所决定，而且因粘合剂的加入而降低了原粉状活性炭的吸附性能；申请号为201410830775.1的发明专利“光催化蜂窝活性炭网”，其特征是以煤粉为原料，用粘土、羧甲基纤维素和煤焦油为组分的复合粘结剂，经搅拌混合均匀后压制成型，再在高温炉中炭化和水蒸汽或二氧化碳活化而制得，其孔隙结构以微孔为主，且产品中含有粘土等杂质，其灰分含量较高，产品的吸附性能较差，对较大分子有机气体的吸附量较小；又如申请号为201110400491.5的发明专利“一种蜂窝活性炭及其制备方法和采用该蜂窝活性炭的空气净化机”，其特征是将粉状活性炭与硅酸盐、负离子粉、纳米TiO2混合均匀，并经球磨、榨泥、练泥、成型、煅烧工序而制成，它存在灰分含量高，吸附性能差，同时，由于少量的纳米TiO2混合在大量的活性炭中，在蜂窝活性炭表面产生光催化的效果就非常差。我国板栗果蓬资源丰富，目前，它除了被用作燃料外尚未得到较有价值的开发利用，如板栗果蓬得到高值化利用，将对促进板栗产业和农村经济的发展具有重要作用。基于上述背景，本实用新型发明了一种以板栗果蓬制备的光催化蜂窝活性炭为吸材料的废气净化设备，它具有吸附剂使用寿命长和净化效率高的优点。Air pollution by organic volatiles exists in many production and living environments, such as paint production workshops, furniture paint workshops, newly renovated offices or residential rooms, all of which contain formaldehyde, benzene series organic compounds or other organic solvent volatiles in the air. If people have been in the environment containing these organic volatiles for a long time, it will cause great harm to the body, and even have the hidden danger of carcinogenesis. It is very necessary to purify these organic waste gases. Activated carbon has been widely used to control air and water pollution. Granular activated carbon is commonly used. In recent years, honeycomb activated carbon has been developed, which is more convenient to use and is very popular in the market. However, this type of honeycomb activated carbon is currently added to coal powder or charcoal powder Coal tar and other binders are made by stirring and mixing, pressing and molding, and then activated by water vapor. The pore structure is mainly micropores, with few mesopores. At the same time, it is troublesome to regenerate this kind of honeycomb activated carbon after its adsorption is saturated, and it must be replaced after a certain period of use. The cost of use is high, and it is difficult to restore the original adsorption capacity even through regeneration. In recent years, there have been patent reports on renewable honeycomb activated carbon, such as the invention patent of application number 201410728499.8 "a preparation method of photodegradable formaldehyde honeycomb activated carbon", which is characterized by mixing and stirring the finished powdery activated carbon and composite binder After uniformity, it is molded with a mold, immersed in nano-TiO 2 suspension after high temperature treatment, and then heated and dried. Its adsorption capacity is determined by the performance of powdered activated carbon, and it is reduced by the addition of binders. The adsorption performance of the original powdery activated carbon; the invention patent "photocatalytic honeycomb activated carbon network" with application number 201410830775.1 is characterized in that it uses coal powder as raw material and uses clay, carboxymethyl cellulose and coal tar as components for composite bonding The agent is made by stirring and mixing uniformly, then pressing and molding, and then carbonizing and activating with water vapor or carbon dioxide in a high-temperature furnace. Its pore structure is mainly micropores, and the product contains impurities such as clay, and its ash content is high. The adsorption performance is poor, and the adsorption capacity for larger molecular organic gases is small; another example is the invention patent "A Honeycomb Activated Carbon and Its Preparation Method and Air Purifier Using the Honeycomb Activated Carbon" with the application number 201110400491.5, which is characterized by Mix powdered activated carbon with silicate, negative ion powder, and nano- TiO2 evenly, and make it through ball milling, mud squeezing, mud refining, molding, and calcination. It has high ash content and poor adsorption performance. At the same time, due to a small amount of Nano-TiO 2 is mixed in a large amount of activated carbon, and the effect of photocatalysis on the surface of honeycomb activated carbon is very poor. Our country is rich in chestnut canopy resources. At present, it has not been developed and utilized with more value except for being used as fuel. For example, the high-value utilization of chestnut canopy will play an important role in promoting the development of chestnut industry and rural economy. Based on the above background, the utility model has invented a waste gas purification equipment using photocatalytic honeycomb activated carbon prepared from chestnut fruit canopy as the absorbent material, which has the advantages of long service life and high purification efficiency of the adsorbent.
三、发明内容3. Contents of the invention
本专利发明了一种采用板栗果蓬基光催化蜂窝活性炭的废气净化设备，所用的光催化蜂窝活性炭系以板栗果蓬为原料，经粉碎后与磷酸溶液混合均匀，在一定温度下原料中的木质素、纤维素和半纤维素被磷酸催化降解、热解而塑化产生糖类和焦油等粘结性物质，并在塑化料中添加适量的木焦油以增强物料的粘结性，对塑化料进行研磨捏合以缩小颗粒间隙，使颗粒结合更紧密，同时让焦油充分渗透到颗粒中去，更有利于粒子之间的粘结，从而提高压制成型的强度。将经研磨捏合的塑化料置于成型模具中压制成蜂窝状，然后经干燥硬化、炭化、活化、浸洗、干燥、附载纳米二氧化钛等步骤制成光催化蜂窝活性炭产品，其制备操作是这样的：将板栗果蓬干燥到含水率小于20％，用粉碎机粉碎成20～60目，将粉状料与浓度为60～85％的磷酸溶液按酸料重量比为1.8～2.5∶1的比例在混合设备中搅拌混合均匀，再将混合料置于塑化设备中在100～110℃下塑化4～6小时，将塑化料与木焦油按重量比5∶1加入木焦油搅拌均匀，并置于研磨设备中进行研磨捏合0.5～1小时，然后将其置于模具中压制成蜂窝状，用烘干设备在150～200℃下进行干燥硬化，最后置于炭活化设备中在500～600℃下炭化和活化2～3小时，再将蜂窝活化炭冷却至200℃以下，置于热水中进行浸洗以回收磷酸，直至浸洗到PH值≥5，用烘干设备在150～200℃下进行烘干，将蜂窝活性炭置于浓度为2～3％的纳米二氧化钛悬浮液中浸渍1～2小时，最后在150～200℃下烘干2～3小时即制得了板栗果蓬基光催化蜂窝活性炭产品。2～3％的纳米二氧化钛悬浮液是这样配制的：称取P25纳米二氧化钛40～60克，分散在1000ml水中用高速分散机制成悬浮液，再加入1000ml浓度为2％的中粘度聚乙烯醇溶液并搅拌均匀。本实用新型所述板栗果蓬基光催化蜂窝活性炭产品的外表面附载了纳米二氧化钛光催化剂，在吸附的同时可使有机物被光催化氧化成二氧化碳与水，从而提高其吸附能力，也可通过光照射再生以恢复其吸附力，具有使用寿命长的优点。This patent has invented a waste gas purification equipment using chestnut fruit canopy-based photocatalytic honeycomb activated carbon. The photocatalytic honeycomb activated carbon used is made of chestnut fruit canopy as raw material. Lignin, cellulose and hemicellulose are catalytically degraded by phosphoric acid, pyrolyzed and plasticized to produce sugar and tar and other cohesive substances, and an appropriate amount of wood tar is added to the plastic material to enhance the cohesiveness of the material. The plasticizing material is ground and kneaded to narrow the gap between the particles, so that the particles can be combined more tightly, and at the same time, the tar can fully penetrate into the particles, which is more conducive to the bonding between the particles, thereby improving the strength of the compression molding. The ground and kneaded plasticized material is placed in a molding mold and pressed into a honeycomb shape, and then dried and hardened, carbonized, activated, soaked, dried, and loaded with nano-titanium dioxide to make a photocatalytic honeycomb activated carbon product. The preparation operation is as follows Method: dry the chestnut canopy until the water content is less than 20%, crush it into 20-60 meshes with a pulverizer, and mix the powdered material and the phosphoric acid solution with a concentration of 60-85% at a weight ratio of 1.8-2.5:1 Stir and mix evenly in the mixing equipment, then put the mixture in the plasticizing equipment and plasticize at 100-110°C for 4-6 hours, add the plasticizing material and wood tar in a weight ratio of 5:1, add wood tar and stir evenly , and put it in the grinding equipment for grinding and kneading for 0.5-1 hour, then put it in the mold and press it into a honeycomb shape, dry and harden it at 150-200°C with the drying equipment, and finally put it in the carbon activation equipment at 500 Carbonize and activate at ~600°C for 2 to 3 hours, then cool the honeycomb activated carbon to below 200°C, soak in hot water to recover phosphoric acid until the pH value is ≥ 5, and dry it at 150 Drying at ~200°C, immersing honeycomb activated carbon in nano-titanium dioxide suspension with a concentration of 2-3% for 1-2 hours, and finally drying at 150-200°C for 2-3 hours to obtain chestnut fruit canopy Based photocatalytic honeycomb activated carbon products. The 2-3% nano-titanium dioxide suspension is prepared as follows: Weigh 40-60 grams of P25 nano-titanium dioxide, disperse it in 1000ml of water and use a high-speed disperser to make a suspension, and then add 1000ml of 2% medium-viscosity polyvinyl alcohol solution and stir well. The outer surface of the chestnut pomegranate-based photocatalytic honeycomb activated carbon product described in the utility model is equipped with a nano-titanium dioxide photocatalyst, which can make organic matter be photocatalytically oxidized into carbon dioxide and water while adsorbing, thereby improving its adsorption capacity, and can also be absorbed by light. Irradiation regeneration to restore its adsorption force has the advantage of long service life.
本发明所述的废气净化设备是这样的：它的主体结构为横截面为正方形的长方体，它由废气进口1、安装支座2、废气净化设备壳体3、活性炭放置网支撑脚4、蜂窝活性炭5、紫外灯管6、活性炭放置网7、清洁气体排出口8、维修门密封材料9和维修门10所构成。废气进口1在底部，清洁气体排出口8在顶部；在废气净化设备壳体内部自下往上均匀设置间距相等的多层活性炭放置网7，活性炭放置网安放在支撑脚4上，在每层活性炭放置网下面设置多支紫外灯管，在每层活性炭放置网上堆放蜂窝活性炭5，在最顶层活性炭放置网的上面也设置多支紫外灯管，蜂窝活性炭层的表面与紫外灯管间留有适当距离，以便紫外光照射到蜂窝活性炭的方孔中。有机废气从进气口1通入净化设备中，依次通过多层蜂窝活性炭层，废气中的有机气体被活性炭吸附，同时在紫外光照射下被催化氧化成二氧化碳和水，既发生活性炭的吸附作用，又产生有机气体的光催化氧化作用，从而提高废气的净化效率。废气通过多层蜂窝活性炭层的吸附与光催化氧化后，从顶部的清洁气体排出口8排出。在废气净化设备停止净化作业期间，可开启紫外灯照射蜂窝活性炭，对吸附的有机气体进行催化氧化，恢复其吸附性能，实现活性炭的自助再生，延长蜂窝活性炭的使用寿命；当活性炭需要更换时可通过维修门10进行更换，操作较方便。The exhaust gas purification equipment described in the present invention is as follows: its main body structure is a rectangular parallelepiped with a square cross section, which consists of exhaust gas inlet 1, mounting support 2, exhaust gas purification equipment shell 3, activated carbon placement net support feet 4, honeycomb Activated carbon 5, ultraviolet lamp tube 6, activated carbon placement net 7, clean gas outlet 8, maintenance door sealing material 9 and maintenance door 10 are formed. The exhaust gas inlet 1 is at the bottom, and the clean gas outlet 8 is at the top; multi-layer activated carbon placement nets 7 with equal spacing are evenly arranged from bottom to top inside the exhaust gas purification equipment shell, and the activated carbon placement nets are placed on the supporting feet 4. A plurality of ultraviolet lamp tubes are set under the activated carbon placement net, honeycomb activated carbon 5 is stacked on each layer of activated carbon placement net, and a plurality of ultraviolet lamp tubes are also arranged on the topmost activated carbon placement net, and a gap is left between the surface of the honeycomb activated carbon layer and the ultraviolet lamp tube. Appropriate distance so that the ultraviolet light can shine into the square holes of the honeycomb activated carbon. The organic waste gas enters the purification equipment from the air inlet 1, and passes through the multi-layer honeycomb activated carbon layer in turn. The organic gas in the waste gas is adsorbed by the activated carbon, and at the same time, it is catalyzed and oxidized into carbon dioxide and water under the irradiation of ultraviolet light, and the adsorption of activated carbon occurs. , and produce photocatalytic oxidation of organic gases, thereby improving the purification efficiency of exhaust gas. The waste gas is discharged from the clean gas outlet 8 on the top after being adsorbed by the multi-layer honeycomb activated carbon layer and photocatalytically oxidized. When the exhaust gas purification equipment stops the purification operation, the ultraviolet lamp can be turned on to irradiate the honeycomb activated carbon to catalyze the oxidation of the adsorbed organic gas, restore its adsorption performance, realize the self-regeneration of the activated carbon, and prolong the service life of the honeycomb activated carbon; when the activated carbon needs to be replaced, it can Replacement is carried out through the maintenance door 10, and the operation is more convenient.
四、附图说明4. Description of drawings
附图1为本发明所述一种采用板栗果蓬基蜂窝活性炭的废气净化设备正立面剖视结构示意图，1为废气进口，2为安装支座，3为废气净化设备壳体，4为活性炭放置网支撑脚，5 为蜂窝活性炭，6为紫外灯管，7为活性炭放置网，8为清洁气体排出口；图2为本发明所述废气净化设备的侧立面剖视结构示意图，9为维修门密封材料，10为维修门，其余部件说明同上。Accompanying drawing 1 is a kind of waste gas purification equipment front elevation cross-sectional structure schematic diagram that adopts Chinese chestnut pomegranate-based honeycomb activated carbon according to the present invention, 1 is the waste gas inlet, 2 is the installation support, 3 is the waste gas purification equipment shell, 4 is Activated carbon is placed net supporting foot, and 5 is honeycomb activated carbon, and 6 is ultraviolet lamp tube, and 7 is activated carbon placed net, and 8 is cleaning gas outlet; 10 is the maintenance door sealing material, and 10 is the maintenance door, and all the other parts are described the same as above.
五、具体实施方式5. Specific implementation
结合附图1来说明本发明所述的废气净化设备的实施方式：该设备主体结构为横截面是正方形的长方体，将待净化的有机废气从进气口1通入净化设备中，依次通过多层蜂窝活性炭层，废气中的有机气体一方面被活性炭吸附，同时开启紫外灯，被蜂窝活性炭吸附的有机气体被催化氧化成二氧化碳和水，产生吸附和催化氧化双重作用，从而提高废气的净化效率。废气通过多层蜂窝活性炭层的吸附与光催化氧化后的清洁气体从顶部的清洁气体排出口8排出，实现废气的净化。在废气净化设备在停止净化作业期间，可开启紫外灯管6照射蜂窝活性炭5，对被吸附的有机气体进行催化氧化，恢复其吸附性能，实现活性炭的自助再生，延长蜂窝活性炭的使用寿命；当需要更换活性炭时，可通过打开维修门10进行更换，操作较方便。The embodiment of the waste gas purification equipment according to the present invention is described in conjunction with accompanying drawing 1: the main body structure of the equipment is a cuboid with a square cross section, and the organic waste gas to be purified is passed into the purification equipment from the air inlet 1, and passes through multiple One layer of honeycomb activated carbon layer, the organic gas in the exhaust gas is adsorbed by the activated carbon on the one hand, and the ultraviolet lamp is turned on at the same time, the organic gas adsorbed by the honeycomb activated carbon is catalyzed and oxidized into carbon dioxide and water, resulting in dual functions of adsorption and catalytic oxidation, thereby improving the purification efficiency of exhaust gas . The waste gas is discharged from the clean gas outlet 8 on the top through the adsorption of the multi-layer honeycomb activated carbon layer and the clean gas after photocatalytic oxidation, so as to realize the purification of the waste gas. When the exhaust gas purification equipment stops the purification operation, the ultraviolet lamp 6 can be turned on to irradiate the honeycomb activated carbon 5 to catalyze and oxidize the adsorbed organic gas, restore its adsorption performance, realize the self-regeneration of the activated carbon, and prolong the service life of the honeycomb activated carbon; When the activated carbon needs to be changed, it can be replaced by opening the maintenance door 10, which is more convenient to operate.
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