CN207024949U - Industrial VOC waste gas rich catalytic thermal combustion treatment system - Google Patents
Industrial VOC waste gas rich catalytic thermal combustion treatment system Download PDFInfo
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- Treating Waste Gases (AREA)
Abstract
本实用新型公开工业VOC废气浓催化热燃烧处理系统,包括喷淋处理模块、干燥模块、浓缩模块和催化燃烧器,废气排出管与所述喷淋处理模块连接,所述喷淋处理模块与所述干燥模块的干燥通道连接,所述干燥模块与所述浓缩模块连接,所述浓缩模块与所述催化燃烧器连接,所述催化燃烧器的排放烟气管与排放总管连接所述排放总管设置有一分支管路与所述干燥模块的热源接口连接。具有的优点和有益技术效果如下:回收利用的烟气干燥后进入进行燃烧分解;通过浓缩处理后进行燃烧降解;充分的回收利用燃烧室排放热量,节能效果明显,且VOC完全被燃烧降解,对环境不再造成污染。
The utility model discloses an industrial VOC waste gas concentrated catalytic thermal combustion treatment system, including a spray treatment module, a drying module, a concentration module and a catalytic burner, the waste gas discharge pipe is connected to the spray treatment module, the spray treatment module is connected to the drying channel of the drying module, the drying module is connected to the concentration module, the concentration module is connected to the catalytic burner, the exhaust flue gas pipe of the catalytic burner is connected to the exhaust main pipe, and the exhaust main pipe is provided with a branch pipeline connected to the heat source interface of the drying module. The advantages and beneficial technical effects are as follows: the recycled flue gas is dried and then enters for combustion and decomposition; it is burned and degraded after being concentrated; the exhaust heat of the combustion chamber is fully recycled, the energy-saving effect is obvious, and the VOC is completely burned and degraded, and no pollution is caused to the environment.
Description
【技术领域】【Technical field】
本实用新型涉及一种废气处理装置,特别是一种工业VOC废气浓催化热燃烧处理系统。The utility model relates to a waste gas treatment device, in particular to an industrial VOC waste gas concentrated catalytic thermal combustion treatment system.
【背景技术】【Background technique】
烘干窑炉可以用于对工件表面的油漆及涂料进行加热干燥处理。工件在高温处理的过程中,工件中的挥发性有机化合物(VOC)气体随尾气直接排出到环境中,将会对环境造成严重污染,同时会对该区域内的工作人员及居民造成身体损伤。The drying kiln can be used to heat and dry the paint and coating on the surface of the workpiece. During the high-temperature treatment of the workpiece, the volatile organic compound (VOC) gas in the workpiece is directly discharged into the environment along with the exhaust gas, which will cause serious pollution to the environment and cause physical damage to the staff and residents in the area.
目前行业内主要采用冷凝法、吸附-真空脱附后吸收法、燃烧法、膜分离等治理手段,现有有机废气处理手段单一,构造复杂,要么处理效果很差,要么需要消耗大部分能源,提高处理成本。At present, the industry mainly adopts condensation method, adsorption-vacuum desorption post-absorption method, combustion method, membrane separation and other treatment methods. The existing organic waste gas treatment methods are single and complex in structure. Either the treatment effect is poor, or most of the energy is consumed. Increase processing costs.
【实用新型内容】【Content of utility model】
本实用新型的目的是针对上述现技术存在的不足,提供一种可以极大程度消除挥发性有机化合物(VOC)气体排放污染,结构简单、节能高效且更为环保的工业VOC废气浓催化热燃烧处理系统。The purpose of this utility model is to address the above-mentioned deficiencies in the prior art, to provide a kind of industrial VOC exhaust gas concentrated catalytic thermal combustion that can eliminate the pollution of volatile organic compound (VOC) gas emission to a great extent, has a simple structure, energy saving and high efficiency, and is more environmentally friendly. processing system.
为了实现上述目的,本实用新型是这样实现的:工业VOC废气浓催化热燃烧处理系统,包括喷淋处理模块、干燥模块、浓缩模块和催化燃烧器,废气排出管与所述喷淋处理模块连接,所述喷淋处理模块与所述干燥模块的干燥通道连接,所述干燥模块与所述浓缩模块连接,所述浓缩模块与所述催化燃烧器连接,所述催化燃烧器的排放烟气管与排放总管连接所述排放总管设置有一分支管路与所述干燥模块的热源接口连接。In order to achieve the above object, the utility model is achieved in the following way: the industrial VOC exhaust gas concentrated catalytic thermal combustion treatment system includes a spray treatment module, a drying module, a concentration module and a catalytic burner, and the exhaust gas discharge pipe is connected with the spray treatment module , the spray treatment module is connected to the drying channel of the drying module, the drying module is connected to the concentration module, the concentration module is connected to the catalytic burner, and the exhaust gas pipe of the catalytic burner Connecting with the discharge main pipe The discharge main pipe is provided with a branch pipeline connected with the heat source interface of the drying module.
所述喷淋处理模块,包括一个处理塔,在所述处理塔内设置下至上依次设有至少一个加湿处理腔和二次除尘腔,所述加湿处理腔和二次除尘腔之间设有过滤填料层相隔;在所述二次除尘腔内设置第一喷淋装置,所述第一喷淋装置 安装于所述二次除尘腔的上方;所述处理塔设置有烟气进口和出气口,所述烟气进口连通所述加湿处理腔,所述出气口连通所述二次除尘腔,在所述加湿处理腔上设置有第二喷淋装置,所述处理塔底端设置处理液池,所述第二喷淋装置通过输送管经水泵与所述处理液池连接。The spray treatment module includes a treatment tower, and at least one humidification treatment chamber and a secondary dust removal chamber are arranged in sequence from bottom to top in the treatment tower, and a filter is provided between the humidification treatment chamber and the secondary dust removal chamber. The packing layers are separated; the first spray device is arranged in the secondary dust removal chamber, and the first spray device is installed above the secondary dust removal chamber; the treatment tower is provided with a flue gas inlet and a gas outlet, The flue gas inlet is connected to the humidification treatment chamber, the gas outlet is connected to the secondary dust removal chamber, a second spray device is arranged on the humidification treatment chamber, and a treatment liquid pool is arranged at the bottom of the treatment tower. The second spraying device is connected with the treatment liquid pool through a delivery pipe and a water pump.
所述第一喷淋装置或第二喷淋装置包括设置所述二次除尘腔或加湿处理腔内的螺旋盘管,在所述螺旋盘管上设置有若干喷淋头,可以使烟气与处理液喷雾进行有效接触,最大限度地除去烟气中的硫化物和氮氧化物。The first spraying device or the second spraying device includes a spiral coil pipe arranged in the secondary dust removal chamber or humidification treatment chamber, and several spray heads are arranged on the spiral coil pipe, which can make the flue gas and The treatment liquid is sprayed for effective contact to remove sulfide and nitrogen oxides in the flue gas to the greatest extent.
所述加湿处理腔为分级设置,所述加湿处理腔内通过辅助过滤填料层分割成最少两个子加湿处理腔;一级子加湿处理腔和二级子加湿处理腔内分别设置所述喷淋装置。The humidification treatment chamber is arranged in stages, and the humidification treatment chamber is divided into at least two sub-humidification treatment chambers through the auxiliary filter packing layer; .
所述浓缩模块包括一级浓缩部和二级浓缩部,所述一级浓缩部通过净化排放口与二级浓缩部连接。烟气通过一级浓缩部吸附浓缩后再经过二级浓缩部吸附浓度,可以将烟气处理达到大气排放标准后通过烟囱排放。The concentration module includes a primary concentration part and a secondary concentration part, and the primary concentration part is connected with the secondary concentration part through a purification discharge port. The flue gas is absorbed and concentrated by the first-level concentration unit, and then passed through the second-level concentration unit to absorb the concentration. The flue gas can be treated to meet the atmospheric emission standard and then discharged through the chimney.
所述一级浓缩部内设置第三吸附模块,所述第三吸附模块安装于转轴上,且所述一级浓缩部上设置有烟气进口、净化排放口、解吸进口和浓缩排出口,所述净化排放口与二级浓缩部的进气口连接,浓缩排放口通过管道与浓缩汇集箱连接,所述浓缩汇集箱与所述蓄热式换热器的进风口连接。A third adsorption module is installed in the first-stage concentration part, and the third adsorption module is installed on the rotating shaft, and the first-stage concentration part is provided with a flue gas inlet, a purification outlet, a desorption inlet, and a concentration outlet. The purification discharge port is connected to the air inlet of the secondary enrichment part, and the concentration discharge port is connected to the concentration collection box through a pipeline, and the concentration collection box is connected to the air inlet of the regenerative heat exchanger.
所述二级浓缩部包括第一吸附模块和第二吸附模块,所述第一吸附模块和第二吸附模块上分别设置进气口、净化排放口、解吸进口和浓缩排出口,所述净化排放口可以直接与烟囱连接,将净化后符合排放标准的气体通过烟囱排放;所述一级浓缩部的净化排放口分别与所述第一吸附模块和第二吸附模块进气口的连接,且在进气的管道上分别设置有阀门;所述净化排放口与烟囱之间的管道上分别设置有阀门;所述第一吸附模块和第二吸附模块的浓缩排出口可以与汇集箱连接,且在所述第一吸附模块和第二吸附模块的浓缩排出口与汇集箱连接的管路上分别设置有阀门;所述第一吸附模块和第二吸附模块的解吸进口连接解吸进气管,在所述解吸进气管上安装阀门。The secondary enrichment part includes a first adsorption module and a second adsorption module, the first adsorption module and the second adsorption module are respectively provided with an air inlet, a purification discharge port, a desorption inlet and a concentration discharge port, and the purification discharge The outlet can be directly connected to the chimney, and the purified gas that meets the emission standard is discharged through the chimney; the purification discharge port of the first-stage enrichment part is respectively connected to the air inlet of the first adsorption module and the second adsorption module, and in Valves are respectively provided on the pipelines of the air intake; valves are respectively provided on the pipelines between the purification discharge port and the chimney; the concentration discharge ports of the first adsorption module and the second adsorption module can be connected with the collection box, and Valves are respectively arranged on the pipelines connecting the concentration outlets of the first adsorption module and the second adsorption module to the converging tank; the desorption inlets of the first adsorption module and the second adsorption module are connected to the desorption inlet pipe, A valve is installed on the intake pipe.
所述一级浓缩部的解吸进口通过混合装置与烟囱连接,所述混合装置设有用于引入空气的空气输入管。所述二级浓缩部内的所述第一吸附模块和第 二吸附模块的解吸进口通过混合装置与烟囱连接。通过引用部分已处理彻底的烟气与空气混合来解吸附,可以减少废气排放,及余热回收利用,节约能源。在混合装置中,空气与烟气的体积比为3∶1-3,优选的,所述空气与烟气的体积比为3∶1。The desorption inlet of the primary concentration part is connected to the chimney through a mixing device, and the mixing device is provided with an air input pipe for introducing air. The desorption inlets of the first adsorption module and the second adsorption module in the secondary concentration part are connected with the chimney through a mixing device. By mixing part of the treated flue gas with air for desorption, exhaust emissions can be reduced, waste heat can be recycled, and energy can be saved. In the mixing device, the volume ratio of air to flue gas is 3:1-3, preferably, the volume ratio of air to flue gas is 3:1.
与现有技术相比,本实用新型具有的优点和有益技术效果如下:将含有VOC气体的高温烟气全部通过喷淋处理模块进行脱硫及除去大的颗粒物,减少烟气粉尘排放;先将喷淋处理后的废气用回收利用的烟气干燥后进入进行燃烧分解,可以减轻处理负担,提高燃烧效果;将含有VOC气体的高温烟气全部通过浓缩处理后进行燃烧降解,可以达到几乎零排放标准;催化燃烧器节能效果明显,且VOC完全被燃烧降解,对环境不再造成污染。Compared with the prior art, the utility model has the advantages and beneficial technical effects as follows: all the high-temperature flue gas containing VOC gas is desulfurized and removes large particles through the spray treatment module, reducing the emission of flue gas dust; The waste gas after leaching treatment is dried with the recycled flue gas and then burned and decomposed, which can reduce the processing burden and improve the combustion effect; all the high-temperature flue gas containing VOC gas is burned and degraded after concentration treatment, which can reach almost zero emission standards ; The energy-saving effect of the catalytic burner is obvious, and the VOC is completely degraded by combustion, and no longer pollutes the environment.
【附图说明】【Description of drawings】
图1为本实用新型工业VOC废气浓催化热燃烧处理系统的系统流程图;Fig. 1 is the system flow diagram of the industrial VOC waste gas rich catalytic thermal combustion treatment system of the utility model;
图2为本实用新型工业VOC废气浓催化热燃烧处理系统中喷淋处理模块的结构示意图Fig. 2 is a structural schematic diagram of the spray treatment module in the industrial VOC waste gas concentrated catalytic thermal combustion treatment system of the utility model
图3为本实用新型工业VOC废气浓催化热燃烧处理系统中浓缩模块的结构示意图。Fig. 3 is a structural schematic diagram of the enrichment module in the industrial VOC waste gas enriched catalytic thermal combustion treatment system of the present invention.
【具体实施方式】【detailed description】
以下结合附图和具体实施例对本实用新型进行详细的描述说明。The utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments.
工业VOC废气浓催化热燃烧处理系统,如图1所示,包括喷淋处理模块2、干燥模块7、浓缩模块8和催化燃烧器6,家具等喷涂车间的废气排出管1与所述喷淋处理模块2连接,用于处理可能存在的硫化物和去除大颗粒物;所述喷淋处理模块2与所述干燥模块7的干燥通道连接,用于对喷淋处理后的废气进行干燥处理,减轻处理负担,提高燃烧效果;所述干燥模块7与所述浓缩模块8连接,所述浓缩模块8与所述催化燃烧器6连接,所述催化燃烧器6的排放烟气管与排放总管连接,排放总管通过烟囱排放出去;所述排放总管设置有一分支管路与所述干燥模块7的热源接口连接。The industrial VOC waste gas concentrated catalytic thermal combustion treatment system, as shown in Figure 1, includes a spray treatment module 2, a drying module 7, a concentration module 8 and a catalytic burner 6, and the waste gas discharge pipe 1 of the furniture spraying workshop and the spray The processing module 2 is connected to handle possible sulfides and remove large particles; the spray processing module 2 is connected to the drying channel of the drying module 7 and is used to dry the waste gas after the spray treatment to reduce the processing burden, improve the combustion effect; the drying module 7 is connected to the enrichment module 8, the enrichment module 8 is connected to the catalytic burner 6, and the exhaust gas pipe of the catalytic burner 6 is connected to the exhaust main pipe, The discharge main pipe is discharged through the chimney; the discharge main pipe is provided with a branch pipeline connected with the heat source interface of the drying module 7 .
所述干燥模块7与所述催化燃烧器6连接管道之间设置调节阀门14。所述排放总管上设置烟气分配箱9,所述分支管路与所述烟气分配箱9连接。A regulating valve 14 is provided between the drying module 7 and the connecting pipe of the catalytic burner 6 . A smoke distribution box 9 is arranged on the discharge main pipe, and the branch pipeline is connected with the smoke distribution box 9 .
所述催化燃烧器6可以是光催化燃烧器,可以直接购买市场上销售的成熟产品,其主要是利用光催化剂二氧化钛(TiO2)吸收外界辐射的光能,使其直接转变为化学能。对臭氧难以氧化的某些有机物如三氯甲烷、四氯化炭、六氯苯、都能有效地加以分解,所以对难以降解的有机物具有特别意义,光催化的有效氧化剂是羟基自由基(HO),羟基自由基(HO)的氧化性高于常见的臭氧、双氧水、高锰酸钾、次氯酸等。Described catalytic burner 6 can be photocatalytic burner, can directly buy the mature product sold on the market, and it mainly utilizes photocatalyst titanium dioxide (TiO2) to absorb the light energy of external radiation, make it directly convert into chemical energy. Some organic substances that are difficult to be oxidized by ozone, such as chloroform, carbon tetrachloride, and hexachlorobenzene, can be effectively decomposed, so it has special significance for organic substances that are difficult to degrade. The effective oxidant for photocatalysis is hydroxyl radicals (HO ), the oxidation of hydroxyl radicals (HO) is higher than that of common ozone, hydrogen peroxide, potassium permanganate, hypochlorous acid, etc.
所述干燥模块7为换热器,其包括干燥通道和换热通道,所述干燥通道与所述喷淋处理模块2的出口连接,所述换热通道与所述分支管路连接,用于回收排放余热来对废气进行干燥,节能,且效果明显。The drying module 7 is a heat exchanger, which includes a drying channel and a heat exchange channel, the drying channel is connected to the outlet of the spray treatment module 2, and the heat exchange channel is connected to the branch pipeline for Recycling exhaust waste heat to dry exhaust gas, energy saving, and the effect is obvious.
所述喷淋处理模块,如图2所示,其包括一个处理塔,在所述处理塔内从下至上依次设有至少一个加湿处理腔11和二次除尘腔12,所述加湿处理腔11和二次除尘腔12之间设有过滤填料层13相隔;在所述二次除尘腔12内设置第一喷淋装置53,所述第一喷淋装置53安装于所述二次除尘腔12的上方;第一喷淋装置53包括设置所述二次除尘腔的螺旋盘管,在所述螺旋盘管上设置有若干喷淋头,所述第一喷淋装置53通过输送管和第一水泵52与储水池51连接;所述处理塔靠近底部侧壁设置烟气进口与废气排出管1连接,底部设置排水口16,上部顶端设置出气口,所述烟气进口连通所述加湿处理腔11,所述出气口连通所述二次除尘腔。所述处理塔底端设置有处理液池41,用于收集从所述排水口16流下的处理液。所述排水口16可以置于所述处理液池41内液面以下,这样可以避免烟气溢流。所述加湿处理腔11上部设置有第二喷淋装置43,所述第二喷淋装置43通过输送管经第二水泵42与所述处理液池41连接,循环利用处理液池41内的处理液对从烟气进口进入的烟气进行喷淋水浴处理,有效的去除烟气中的硫化物以及活泼的氮氧化物。所述喷淋装置43包括设置加湿处理腔11内螺旋盘管,在所述螺旋盘管上设置若干喷淋头,可以使烟气与处理液喷雾进行有效接触,最大限度地除去烟气中的硫化物和氮氧化物。The spray treatment module, as shown in Figure 2, includes a treatment tower, in which at least one humidification treatment chamber 11 and a secondary dedusting chamber 12 are sequentially arranged from bottom to top in the treatment tower, and the humidification treatment chamber 11 There is a filter packing layer 13 between the secondary dust removal chamber 12; a first spray device 53 is arranged in the secondary dust removal chamber 12, and the first spray device 53 is installed in the secondary dust removal chamber 12 above; the first spraying device 53 includes a spiral coil tube with the secondary dust removal chamber, and several shower heads are arranged on the spiral coil tube, and the first spraying device 53 passes through the conveying pipe and the first The water pump 52 is connected to the water storage tank 51; the side wall of the treatment tower is provided with a flue gas inlet near the bottom to connect with the exhaust gas discharge pipe 1, the bottom is provided with a drain port 16, and the top of the upper part is provided with an air outlet, and the flue gas inlet is connected to the humidification treatment chamber 11. The air outlet communicates with the secondary dust removal chamber. A treatment liquid pool 41 is provided at the bottom of the treatment tower for collecting the treatment liquid flowing down from the water outlet 16 . The drain port 16 can be placed below the liquid level in the treatment liquid pool 41, so as to avoid the overflow of flue gas. The upper part of the humidification treatment chamber 11 is provided with a second spray device 43, and the second spray device 43 is connected to the treatment liquid pool 41 through a delivery pipe through a second water pump 42 to recycle the treatment in the treatment liquid pool 41. The liquid sprays the flue gas entering from the flue gas inlet with a water bath to effectively remove sulfide and active nitrogen oxides in the flue gas. The spraying device 43 includes a spiral coil in the humidification treatment chamber 11, and a number of spray heads are arranged on the spiral coil, so that the smoke can be effectively contacted with the spray of the treatment liquid, and the dust in the smoke can be removed to the greatest extent. Sulfides and nitrogen oxides.
其中,所述处理液池41内盛装可循环利用的处理液,所述处理液可以是碱溶液,优选石灰水。在所述处理液池41内设置有水位监测传感器,当 所述处理液池41内的处理液水位下降到一定程度时,发出报警或者添加处理液。Wherein, the treatment liquid pool 41 is filled with a recyclable treatment liquid, and the treatment liquid may be an alkali solution, preferably lime water. A water level monitoring sensor is arranged in the treatment liquid pool 41, and when the water level of the treatment liquid in the treatment liquid pool 41 drops to a certain level, an alarm is sent or a treatment liquid is added.
所述过滤填料层13的厚度为25-40cm,其固定在所述处理塔的侧壁上。所述过滤填料层13内填充的是拉西环。所述拉西环尺寸为36mm~40mm。优选陶瓷拉西环,其陶瓷壁厚为4mm~8mm,价格低,且过滤效果明显。最优选的,所述过滤填料层13的厚度为33-36cm。The thickness of the filter packing layer 13 is 25-40 cm, which is fixed on the side wall of the treatment tower. The filter packing layer 13 is filled with Raschig rings. The size of the Raschig ring is 36mm-40mm. The ceramic Raschig ring is preferred, the ceramic wall thickness is 4mm-8mm, the price is low, and the filtering effect is obvious. Most preferably, the thickness of the filter packing layer 13 is 33-36 cm.
所述喷淋处理模块,在上述的基础上,所述加湿处理腔11为分级设置,所述加湿处理腔11内通过辅助过滤填料层15分割成最少两个子加湿处理腔(一级子加湿处理腔和二级子加湿处理腔)。所述一级子加湿处理腔和二级子加湿处理腔内分别设置所述喷淋装置43。烟气先通过一级子加湿处理腔喷淋处理后通过辅助过滤填料层15过滤后进入二级子加湿处理腔喷淋处理,然后通过过滤填料层13进行加湿后进入二次除尘腔12进行除尘处理。For the spray treatment module, on the basis of the above, the humidification treatment chamber 11 is arranged in stages, and the inside of the humidification treatment chamber 11 is divided into at least two sub-humidification treatment chambers (one sub-humidification treatment chamber) by auxiliary filter packing layer 15 chamber and secondary sub-humidification treatment chamber). The spraying devices 43 are respectively arranged in the first-level sub-humidification treatment chamber and the second-level sub-humidification treatment chamber. The flue gas is first sprayed through the primary humidification treatment chamber, then filtered through the auxiliary filter packing layer 15, and then enters the secondary humidification treatment chamber for spray treatment, then humidified through the filter packing layer 13, and then enters the secondary dust removal chamber 12 for dust removal deal with.
所述辅助过滤填料层15厚度为16-25cm,其固定在所述处理塔的侧壁上。所述过辅助过滤填料层15内填充的是鲍尔环。使用所述鲍尔环可以有效的节约20%-40%填料容积。最优选的,所述过滤填料层13的厚度为17-23cm。The auxiliary filter packing layer 15 has a thickness of 16-25 cm, and is fixed on the side wall of the treatment tower. Pall rings are filled in the auxiliary filter packing layer 15 . Using the Pall ring can effectively save 20%-40% of packing volume. Most preferably, the thickness of the filter packing layer 13 is 17-23 cm.
所述浓缩模块,如图3所示,其包括一级浓缩部和二级浓缩部,所述一级浓缩部通过净化排放口与二级浓缩部连接。烟气通过一级浓缩部吸附浓缩后再经过二级浓缩部吸附浓度,可以将烟气处理达到大气排放标准后通过烟囱排放。The concentration module, as shown in FIG. 3 , includes a primary concentration part and a secondary concentration part, and the primary concentration part is connected to the secondary concentration part through a purification discharge port. The flue gas is absorbed and concentrated by the first-level concentration unit, and then passed through the second-level concentration unit to absorb the concentration. The flue gas can be treated to meet the atmospheric emission standard and then discharged through the chimney.
所述一级浓缩部内设置第三吸附模块,所述第三吸附模块安装于转轴上,且所述一级浓缩部上设置有烟气进口、净化排放口、解吸进口和浓缩排出口,所述净化排放口与二级浓缩部的进气口连接,浓缩排放口通过管道与浓缩汇集箱连接,所述浓缩汇集箱与所述蓄热式换热器4的进口连接。含有VOC的烟气从烟气进口进入,通过所述第三吸附模块的吸附面,然后用净化排放口排出,可以将烟气60-70%的VOC吸入去除掉;当需要解吸时,解吸气体从解吸进口进入,第三吸附模块绕转轴转动,使第三吸附模块的解吸面对着解吸进口,解吸气体将吸附在第三吸附模块的高浓度VOC洗脱后从浓缩 排放口进入浓缩汇集箱。所述一级浓缩部为转轮式的,结构简单,使用方便,且可以连续不断的工作。A third adsorption module is installed in the first-stage concentration part, and the third adsorption module is installed on the rotating shaft, and the first-stage concentration part is provided with a flue gas inlet, a purification outlet, a desorption inlet, and a concentration outlet. The purification discharge port is connected to the air inlet of the secondary enrichment part, and the concentration discharge port is connected to the concentration collection box through a pipeline, and the concentration collection box is connected to the inlet of the regenerative heat exchanger 4 . The flue gas containing VOC enters from the flue gas inlet, passes through the adsorption surface of the third adsorption module, and then is discharged through the purification discharge port, which can absorb and remove 60-70% of the VOC in the flue gas; when desorption is required, the desorption gas Entering from the desorption inlet, the third adsorption module rotates around the rotating shaft, so that the desorption surface of the third adsorption module faces the desorption inlet, and the desorption gas will elute the high-concentration VOC adsorbed in the third adsorption module, and then enter the concentration collection box from the concentration discharge port . The primary enrichment part is of rotary wheel type, simple in structure, easy to use, and can work continuously.
所述二级浓缩部包括第一吸附模块和第二吸附模块,所述第一吸附模块和第二吸附模块上分别设置进气口、净化排放口、解吸进口和浓缩排出口,所述净化排放口可以直接与烟囱连接,将净化后符合排放标准的气体通过烟囱排放。所述一级浓缩部的净化排放口分别与所述第一吸附模块和第二吸附模块进气口的连接,且在进气的管道上分别设置有阀门。所述净化排放口与烟囱之间的管道上分别设置有阀门。所述第一吸附模块和第二吸附模块的浓缩排出口可以与汇集箱连接,且在所述第一吸附模块和第二吸附模块的浓缩排出口与汇集箱连接的管路上分别设置有阀门。所述第一吸附模块和第二吸附模块的解吸进口连接解吸进气管,在所述解吸进气管上安装阀门。The secondary enrichment part includes a first adsorption module and a second adsorption module, the first adsorption module and the second adsorption module are respectively provided with an air inlet, a purification discharge port, a desorption inlet and a concentration discharge port, and the purification discharge The outlet can be directly connected to the chimney, and the purified gas that meets the emission standard is discharged through the chimney. The purification outlets of the primary enrichment part are respectively connected to the air inlets of the first adsorption module and the second adsorption module, and valves are respectively arranged on the air inlet pipes. Valves are respectively arranged on the pipes between the purification outlet and the chimney. The concentration outlets of the first adsorption module and the second adsorption module may be connected to a collection box, and valves are respectively arranged on the pipelines connecting the concentration outlets of the first adsorption module and the second adsorption module to the collection box. The desorption inlets of the first adsorption module and the second adsorption module are connected to a desorption intake pipe, and a valve is installed on the desorption intake pipe.
所述第一吸附模块和第二吸附模块在工作时,通过阀门控制,所述第一吸附模块进行吸附过滤,而第二吸附模块进行解吸,然后进行切换,在第一吸附模块中进行解吸,在第二吸附模块中进行吸附过滤。待处理的烟气经吸附过滤后,可以达到排放标准,直接通过净化排放口排放到烟囱中。第一吸附模块和第二吸附模块的解吸洗脱气体含有更高浓度的挥发性有机化合物(VOC)。这样可以减少气体处理量,减少燃料消耗量,节约成本,且更加节能环保。When the first adsorption module and the second adsorption module are working, they are controlled by valves. The first adsorption module performs adsorption and filtration, while the second adsorption module performs desorption, and then switches to perform desorption in the first adsorption module. Adsorption filtration is carried out in the second adsorption module. After being adsorbed and filtered, the flue gas to be treated can reach the emission standard, and is directly discharged into the chimney through the purification outlet. The desorbed eluate gases from the first and second adsorption modules contain higher concentrations of volatile organic compounds (VOCs). In this way, the gas treatment amount can be reduced, the fuel consumption can be reduced, the cost can be saved, and it is more energy-saving and environmentally friendly.
所述一级浓缩部的解吸进口通过混合装置与烟囱连接,所述混合装置设有用于引入空气的空气输入管。所述二级浓缩部内的所述第一吸附模块和第二吸附模块的解吸进口通过混合装置与烟囱连接。通过引用部分烟气与空气混合来解吸附,可以减少废气排放,及余热回收利用,节约能源。在混合装置中,空气与烟气的体积比为3∶1-3,优选的,所述空气与烟气的体积比为3∶1。The desorption inlet of the primary concentration part is connected to the chimney through a mixing device, and the mixing device is provided with an air input pipe for introducing air. The desorption inlets of the first adsorption module and the second adsorption module in the secondary concentration part are connected with a chimney through a mixing device. By using part of the flue gas to mix with air for desorption, exhaust gas emissions can be reduced, waste heat can be recovered and utilized, and energy can be saved. In the mixing device, the volume ratio of air to flue gas is 3:1-3, preferably, the volume ratio of air to flue gas is 3:1.
所述一级浓缩部可以是沸石转轮,所述沸石转轮可以是通过调整脱附温度、脱附气流量等参数,进一步提高浓缩倍率、提高VOC去除效率和降低处理成本,为缩小浓缩后处理设备、减少能源损耗。所述一级浓缩部内设置第三吸附模块,所述第三吸附模块内填充沸石。通过一级浓缩部可以将废气 中的VOCs气体浓度提高,这样可以减少燃烧分解炉的燃料消耗量,所述燃烧分解炉内燃烧温度约为730℃~900℃,利用高温将VOC燃烧,燃烧反应生成无害的CO2及H2O。可使VOC进气浓度达到蓄热式焚烧系统自维持浓度,不须添加辅助燃料,大幅减少能源消耗;易于实现全自动控制,安全性高;允许待处理废气浓度大幅度波动。The first-stage enrichment part can be a zeolite runner, and the zeolite runner can further increase the concentration ratio, improve the VOC removal efficiency and reduce the processing cost by adjusting parameters such as desorption temperature and desorption gas flow rate, so as to reduce the concentration after concentration. Dispose of equipment, reduce energy consumption. A third adsorption module is arranged in the primary concentration part, and the third adsorption module is filled with zeolite. The concentration of VOCs in the exhaust gas can be increased through the first-stage enrichment part, which can reduce the fuel consumption of the combustion and decomposition furnace. Generate harmless CO 2 and H 2 O. It can make the VOC inlet concentration reach the self-sustaining concentration of the regenerative incineration system, without adding auxiliary fuel, and greatly reduce energy consumption; it is easy to realize fully automatic control and has high safety; the concentration of waste gas to be treated can fluctuate greatly.
所述二级浓缩部采用双气路连续工作,两个吸附床(第一吸附模块和第二吸附模块)交替使用。先将有机废气用其中一个吸附床吸附,当快达到饱和时停止吸附然后用解吸气体将有机物从活性炭上脱附下来使活性炭再生;脱附下来的有机物已被浓缩(浓度较原来提高几十倍)并送往燃烧分解炉直燃烧成二氧化碳及水蒸气排出。当有机废气的浓度达到500PPm以上时,有机废气在燃烧室可维持自燃,不用外加热。燃烧后的尾气经过换热器加热空气,热空气被送往吸附床,用于活性炭再生。这样可满足燃烧和吸附所需的热能,达到节能的目的。再生后的可进入下次吸附;在脱附时,净化操作可用另一个吸附床进行,既适合于连续操作,也适合于间断操作。The secondary concentration part adopts dual gas paths to work continuously, and two adsorption beds (the first adsorption module and the second adsorption module) are used alternately. First, use one of the adsorption beds to absorb the organic waste gas, stop the adsorption when it is almost saturated, and then use the desorption gas to desorb the organic matter from the activated carbon to regenerate the activated carbon; the desorbed organic matter has been concentrated (the concentration is dozens of times higher than the original one) ) and sent to the combustion decomposition furnace for direct combustion into carbon dioxide and water vapor. When the concentration of organic waste gas reaches more than 500PPm, the organic waste gas can maintain spontaneous combustion in the combustion chamber without external heating. The exhaust gas after combustion passes through the heat exchanger to heat the air, and the hot air is sent to the adsorption bed for the regeneration of activated carbon. In this way, the heat energy required for combustion and adsorption can be satisfied, and the purpose of energy saving can be achieved. After regeneration, it can enter the next adsorption; during desorption, the purification operation can be carried out with another adsorption bed, which is suitable for both continuous operation and discontinuous operation.
其中,所述第一吸附模块和第二吸附模块可以为活性炭过滤器,或者蜂窝活性炭。Wherein, the first adsorption module and the second adsorption module may be activated carbon filters, or honeycomb activated carbon.
以上详细描述了本实用新型的较佳具体实施例,应当理解,本领域的普通技术无需创造性劳动就可以根据本实用新型的构思做出诸多修改和变化。因此,凡本技术领域中技术人员依本实用新型构思在现有技术基础上通过逻辑分析、推理或者根据有限的实验可以得到的技术方案,均应该在由本权利要求书所确定的保护范围之中。The preferred specific embodiments of the present utility model have been described in detail above, and it should be understood that those skilled in the art can make many modifications and changes according to the concept of the present utility model without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection defined by the claims .
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CN108619847A (en) * | 2018-07-11 | 2018-10-09 | 安徽万山红环保科技有限公司 | A kind of dipping lacquer exhaust gas spray cleaning adds zeolite runner Adsorption Concentration to be catalyzed combustion purification device |
CN108619887A (en) * | 2018-05-17 | 2018-10-09 | 绍兴市鼎泰节能环保科技有限公司 | A kind of exhaust treatment system |
CN109499258A (en) * | 2019-01-15 | 2019-03-22 | 李迎九 | A kind of vertical vehicle catalyst decomposition VOCs wind cabinet system |
CN109939534A (en) * | 2018-11-23 | 2019-06-28 | 江苏金门能源装备有限公司 | A device for coupling adsorption, concentration and catalytic combustion to treat VOCs waste gas |
CN111594852A (en) * | 2020-06-24 | 2020-08-28 | 南宁市绿城环保设备有限责任公司 | Rubbish low temperature pyrolysis oven tail gas clean system |
CN112594712A (en) * | 2020-12-09 | 2021-04-02 | 广东工业大学 | Special VOC exhaust-gas treatment of furniture factory and waste heat utilization economizer system |
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2017
- 2017-04-13 CN CN201720389763.9U patent/CN207024949U/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108619887A (en) * | 2018-05-17 | 2018-10-09 | 绍兴市鼎泰节能环保科技有限公司 | A kind of exhaust treatment system |
CN108619847A (en) * | 2018-07-11 | 2018-10-09 | 安徽万山红环保科技有限公司 | A kind of dipping lacquer exhaust gas spray cleaning adds zeolite runner Adsorption Concentration to be catalyzed combustion purification device |
CN109939534A (en) * | 2018-11-23 | 2019-06-28 | 江苏金门能源装备有限公司 | A device for coupling adsorption, concentration and catalytic combustion to treat VOCs waste gas |
CN109499258A (en) * | 2019-01-15 | 2019-03-22 | 李迎九 | A kind of vertical vehicle catalyst decomposition VOCs wind cabinet system |
CN111594852A (en) * | 2020-06-24 | 2020-08-28 | 南宁市绿城环保设备有限责任公司 | Rubbish low temperature pyrolysis oven tail gas clean system |
CN112594712A (en) * | 2020-12-09 | 2021-04-02 | 广东工业大学 | Special VOC exhaust-gas treatment of furniture factory and waste heat utilization economizer system |
CN112594712B (en) * | 2020-12-09 | 2025-05-27 | 广东工业大学 | VOC waste gas treatment and waste heat utilization energy-saving system for furniture factories |
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