CN108434961A - Industrial waste gas purification device of low energy consumption - Google Patents
Industrial waste gas purification device of low energy consumption Download PDFInfo
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- CN108434961A CN108434961A CN201810350382.9A CN201810350382A CN108434961A CN 108434961 A CN108434961 A CN 108434961A CN 201810350382 A CN201810350382 A CN 201810350382A CN 108434961 A CN108434961 A CN 108434961A
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- 239000007789 gas Substances 0.000 title claims abstract description 43
- 238000005265 energy consumption Methods 0.000 title claims abstract description 9
- 238000000746 purification Methods 0.000 title abstract description 7
- 239000002440 industrial waste Substances 0.000 title abstract description 6
- 239000002912 waste gas Substances 0.000 claims abstract description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000005406 washing Methods 0.000 claims abstract description 22
- 238000012856 packing Methods 0.000 claims abstract description 21
- 239000007921 spray Substances 0.000 claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 8
- 239000000344 soap Substances 0.000 claims abstract description 8
- 239000000919 ceramic Substances 0.000 claims description 14
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 2
- 238000005201 scrubbing Methods 0.000 claims 5
- 239000004744 fabric Substances 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 17
- 238000006477 desulfuration reaction Methods 0.000 abstract description 7
- 230000023556 desulfurization Effects 0.000 abstract description 7
- 238000003756 stirring Methods 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 description 22
- 238000007789 sealing Methods 0.000 description 19
- 239000000428 dust Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 5
- 239000008149 soap solution Substances 0.000 description 4
- 229910002651 NO3 Inorganic materials 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
Abstract
本发明涉及一种低能耗的工业废气净化装置，包括洗涤塔和布袋除尘器，所述洗涤塔底部设有排液口以及与废气源连通的入气口，洗涤塔内部中段由上至下设有数个填料层，填料层上方设有喷淋管，喷淋管与外界的碱液箱连接，且喷淋管上的喷淋孔朝向填料层设置，洗涤塔内顶部靠近排气口处设有活性炭干燥层，活性炭干燥层内部设有加热电阻丝，加热电阻丝外部包裹设有绝缘层，且加热电阻丝与外界的电源通过电源开关电连接；所述碱液箱内设有搅拌装置，碱液箱通过加料管与皂液箱连接。本发明结构简单，不仅可以对废气进行高效脱硫脱硝作业，而且可以除去废气中夹杂的水分，防止废气携带水分进入布袋除尘器并造成滤袋表面吸潮结块硬化。
The invention relates to a low energy consumption industrial waste gas purification device, which includes a washing tower and a bag filter. A packing layer, a spray pipe is arranged above the packing layer, and the spray pipe is connected with the lye tank outside, and the spray hole on the spray pipe is set toward the packing layer, and the top of the washing tower near the exhaust port is provided with activated carbon Drying layer, activated carbon drying layer is provided with a heating resistance wire inside, the heating resistance wire is wrapped with an insulating layer, and the heating resistance wire is electrically connected to the external power supply through a power switch; the lye tank is provided with a stirring device, and the lye The tank is connected to the soap tank by a feed tube. The invention has a simple structure, can not only carry out efficient desulfurization and denitrification operations on waste gas, but also can remove the water mixed in the waste gas, preventing the waste gas from carrying water into the bag filter and causing the surface of the filter bag to absorb moisture and agglomerate and harden.
Description
技术领域technical field
本发明属于环保设备领域，尤其涉及一种低能耗的工业废气净化装置。The invention belongs to the field of environmental protection equipment, in particular to an industrial waste gas purification device with low energy consumption.
背景技术Background technique
目前，随着工业化的快速发展，如何对工业生产中产生的废气进行净化处理，消除废气中携带的硫化物、硝化物以及其他颗粒性杂物，使得废气达标排放从而对大气环境不产生污染。At present, with the rapid development of industrialization, how to purify the waste gas generated in industrial production, eliminate the sulfide, nitrate and other particulate impurities carried in the waste gas, so that the waste gas can meet the emission standards and will not pollute the atmospheric environment.
现有技术中多采用碱液喷淋以对废气脱硫脱硝，但处理后的废气中颗粒物无法被完全去除，仍需要布袋除尘器对其进行除尘处理，但是脱硫脱硝处理后的废气具有一定湿度，容易造成布袋除尘器的滤袋表面灰尘结块，同时现有技术中的布袋除尘器多采用脉冲器冲击滤袋以使得滤袋抖掉表面积攒的灰尘来防止堵塞，但是脉冲器也需要消耗能量，不利于节能目的的实现。In the prior art, lye spraying is often used to desulfurize and denitrify the waste gas, but the particulate matter in the treated waste gas cannot be completely removed, and a bag filter is still required for dust removal treatment, but the waste gas after desulfurization and denitrification has a certain humidity. It is easy to cause dust agglomeration on the surface of the filter bag of the bag filter. At the same time, the bag filter in the prior art mostly uses a pulser to impact the filter bag to shake off the dust accumulated on the surface of the filter bag to prevent clogging, but the pulser also consumes energy. , It is not conducive to the realization of the purpose of energy saving.
发明内容Contents of the invention
本发明的目的是提供一种低能耗的工业废气净化装置，本发明结构简单，不仅可以对废气进行高效脱硫脱硝作业，而且可以除去废气中夹杂的水分，防止废气携带水分进入布袋除尘器并造成滤袋表面吸潮结块硬化。The purpose of the present invention is to provide a low-energy industrial waste gas purification device. The structure of the present invention is simple. It can not only perform efficient desulfurization and denitrification operations on the waste gas, but also remove the water mixed in the waste gas, preventing the waste gas from carrying water into the bag filter and causing The surface of the filter bag absorbs moisture and agglomerates and hardens.
为解决上述技术问题，本发明采用的技术方案如下：In order to solve the problems of the technologies described above, the technical scheme adopted in the present invention is as follows:
一种低能耗的工业废气净化装置，包括洗涤塔和布袋除尘器，洗涤塔顶部设有排气口，布袋除尘器的进气口与洗涤塔的排气口通过管道连接，所述洗涤塔底部设有排液口以及与废气源连通的入气口，洗涤塔内部中段由上至下设有数个填料层，填料层上方设有喷淋管，喷淋管与外界的碱液箱连接，且喷淋管上的喷淋孔朝向填料层设置，洗涤塔内顶部靠近排气口处设有活性炭干燥层，活性炭干燥层内部设有加热电阻丝，加热电阻丝外部包裹设有绝缘层，且加热电阻丝与外界的电源通过电源开关电连接；所述碱液箱内设有搅拌装置，碱液箱通过加料管与皂液箱连接。A low energy consumption industrial waste gas purification device, comprising a washing tower and a bag filter, the top of the washing tower is provided with an exhaust port, the air inlet of the bag filter is connected to the exhaust port of the washing tower through a pipeline, and the bottom of the washing tower is There is a liquid discharge port and an air inlet connected to the exhaust gas source. There are several packing layers from top to bottom in the middle section of the washing tower, and a spray pipe is arranged above the packing layer. The spray pipe is connected to the lye tank outside and sprayed The spray hole on the shower pipe is set towards the packing layer, and the top of the washing tower is equipped with an activated carbon drying layer near the exhaust port. The activated carbon drying layer is equipped with a heating resistance wire, and the heating resistance wire is wrapped with an insulating layer, and the heating resistance The wire is electrically connected with the external power supply through a power switch; the lye tank is provided with a stirring device, and the lye tank is connected with the soap tank through a feeding pipe.
优选的，所述填料层内填充有陶瓷球体，陶瓷球体上开设有数个通孔。Preferably, the filler layer is filled with ceramic spheres, and several through holes are opened on the ceramic spheres.
优选的，所述布袋除尘器顶部设有出气口、底部设有灰斗、内部设有顶部敞口的滤袋，滤袋顶部敞口与出气口连通，布袋除尘器的进气口包括开设于外壁两侧的上进气口和下进气口，上进气口高于下进气口设置，连接所述进气口与洗涤塔排气口的管道上设有风机，布袋除尘器内设有用于封堵进气口的封门，封门顶部与布袋除尘器内壁铰接；所述滤袋的外壁上、下一体套设有上推环和下推环，倾斜设置的上、下连杆一端分别铰接上推环和下推环，另一端皆铰接布袋除尘器内壁，上、下连杆的中段分别通过推杆与上、下进气口处的封门铰接。Preferably, the top of the bag filter is provided with an air outlet, the bottom is provided with an ash hopper, and the inside is provided with a filter bag with an open top. The top opening of the filter bag is connected to the air outlet. The upper air inlet and the lower air inlet on both sides of the outer wall, the upper air inlet is set higher than the lower air inlet, the pipe connecting the air inlet and the exhaust port of the washing tower is equipped with a fan, and the bag filter is equipped with a fan. There is a sealing door for blocking the air inlet, and the top of the sealing door is hinged with the inner wall of the bag filter; the upper and lower outer walls of the filter bag are provided with an upper push ring and a lower push ring, and one end of the upper and lower connecting rods arranged obliquely is respectively The upper push ring and the lower push ring are hinged, and the other end is hinged to the inner wall of the bag filter. The middle sections of the upper and lower connecting rods are respectively hinged with the sealing doors at the upper and lower air inlets through push rods.
优选的，所述封门、推环、连杆和推杆采用PVC塑料制成。Preferably, the door seal, push ring, connecting rod and push rod are made of PVC plastic.
本发明工作过程如下：The working process of the present invention is as follows:
首先利用加料管将皂液箱内的肥皂溶液加入碱液箱内，并通过搅拌装置搅拌均匀，然后将废气从洗涤塔底部的入气口排入洗涤塔，然后利用喷淋管将碱液箱中的碱性液体从喷淋孔喷出，碱液首先滴在填料层内，由于填料层内填充有陶瓷球体，且陶瓷球体上开设有通孔，所以填料层能够很好地吸附废气并使其充分与碱性液体接触，以除去废气中的硫化物和硝化物，而且由于碱性液体中混合有肥皂液，很容易在陶瓷球体之间以及陶瓷球体的通孔处形成泡状液膜，再度提高了废气与碱性液体的接触面积。当然碱性液体也会从填料层上下滴，废气在上升过程中也会直接接触碱性液体进行脱硫脱硝作业，最终废气上升至洗涤塔顶部时接触活性炭干燥层，废气中的水分被活性炭吸附，同时加热电阻丝也可以通电以对废气进行加热除湿，防止废气携带较多的水分并通过管道进入布袋除尘器内。所述加热电阻丝外部包裹有绝缘层，防止水分接触加热电阻丝造成导电现象。洗涤塔内的碱性液体最终从排液口排出并被收集，可以进行循环使用。First, use the feeding pipe to add the soap solution in the soap tank into the lye tank, and stir it evenly through the stirring device, then discharge the waste gas from the air inlet at the bottom of the washing tower into the washing tower, and then use the spray pipe to pour the soap solution into the lye tank The alkaline liquid is sprayed from the spray hole, and the alkaline liquid is first dropped into the packing layer. Since the packing layer is filled with ceramic spheres, and there are through holes on the ceramic spheres, the packing layer can well absorb the exhaust gas and make it Fully contact with the alkaline liquid to remove sulfide and nitrate in the exhaust gas, and because the alkaline liquid is mixed with soap liquid, it is easy to form a bubble-like liquid film between the ceramic spheres and at the through holes of the ceramic spheres. The contact area between exhaust gas and alkaline liquid is increased. Of course, the alkaline liquid will also drip from the packing layer, and the exhaust gas will directly contact the alkaline liquid for desulfurization and denitrification during the rising process. Finally, when the exhaust gas rises to the top of the washing tower, it will contact the dry layer of activated carbon, and the moisture in the exhaust gas will be absorbed by the activated carbon. At the same time, the heating resistance wire can also be energized to heat and dehumidify the exhaust gas, preventing the exhaust gas from carrying more water and entering the bag filter through the pipe. The heating resistance wire is wrapped with an insulating layer to prevent conduction caused by moisture contacting the heating resistance wire. The alkaline liquid in the washing tower is finally discharged from the discharge port and collected, which can be recycled.
经过脱硫脱硝处理后的废气（废气经过除湿后和加热，能够有效脱除水分，防止水分进入布袋除尘器）在风机的作用下，通过管道同时从布袋除尘器的上、下进气口排入布袋除尘器内：由于布袋除尘器内壁上铰接有封门，而封门在自重作用下封闭上、下进气口，所以废气在进入布袋除尘器内部时需要顶开封门，而风机的鼓风（可以将外界空气鼓入管道，也可以将管道内的废气抽出并经过风机叶轮加速后鼓入管道）可以给予废气一定动能以顶开封门。当封门被推动时，废气进入布袋除尘器内，同时封门绕顶部铰接处转动，这就造成封门带动推杆上移，而推杆与连杆铰接，连杆两端分别铰接布袋除尘器内壁和相应推环，这就造成相应推环作远离相应进气口的动作，即：上进气口处的封门通过相应推杆带动上连杆底端移动，进而使得上连杆推动上推环和滤袋上部远离上进气口；下进气口处的封门通过相应推杆带动下连杆底端移动，进而使得下连杆推动下推环和滤袋下部远离下进气口。如此，滤袋上部和下部反向移动，实现滤袋整体的抖动，以除去滤袋外表吸附的灰尘，防止灰尘堵塞滤袋滤孔。同样的，封门复位或者封门受到的废气顶推力不均匀时（风机可采用变频风机，可以调整转速或者进行间歇式启动和关闭，进而使得封门受到的废气顶推力不同），也会造成滤袋的抖动，进而抖掉灰尘。最终废气穿过滤袋，颗粒物被滤袋过滤，使得洁净的气体从布袋过滤器顶部出气口排至外界。The waste gas after desulfurization and denitrification treatment (the waste gas can effectively remove moisture and prevent moisture from entering the bag filter after dehumidification and heating) is discharged into the bag filter from the upper and lower inlets of the bag filter through the pipe simultaneously under the action of the fan. Inside the bag filter: Since the inner wall of the bag filter is hinged with a sealing door, and the sealing door closes the upper and lower air inlets under the action of its own weight, the exhaust gas needs to be opened when it enters the bag filter, and the blower of the fan (can The external air is blown into the pipe, and the waste gas in the pipe can also be pumped out and accelerated by the fan impeller to blow into the pipe) to give the waste gas a certain kinetic energy to push the door open. When the sealing door is pushed, exhaust gas enters the bag filter, and at the same time, the sealing door rotates around the top hinge, which causes the sealing door to drive the push rod to move upward, and the push rod is hinged to the connecting rod, and the two ends of the connecting rod are respectively hinged to the inner wall of the bag filter and The corresponding push ring, which causes the corresponding push ring to move away from the corresponding air inlet, that is, the sealing door at the upper air inlet drives the bottom end of the upper link to move through the corresponding push rod, so that the upper link pushes the upper push ring and The upper part of the filter bag is away from the upper air inlet; the sealing door at the lower air inlet drives the bottom end of the lower connecting rod to move through the corresponding push rod, so that the lower connecting rod pushes the lower push ring and the lower part of the filter bag away from the lower air inlet. In this way, the upper and lower parts of the filter bag move in reverse to realize the shaking of the filter bag as a whole, so as to remove the dust adsorbed on the surface of the filter bag and prevent dust from clogging the filter holes of the filter bag. Similarly, when the door seal is reset or the exhaust gas push force received by the door seal is uneven (the fan can use a frequency conversion fan, which can adjust the speed or start and close intermittently, so that the exhaust gas push force received by the door seal is different), it will also cause filter bags. Shake to shake off the dust. Finally, the exhaust gas passes through the filter bag, and the particulate matter is filtered by the filter bag, so that the clean gas is discharged from the top outlet of the bag filter to the outside.
布袋除尘器内的灰尘落入灰斗，工作人员定时开启灰斗进行清灰作业。The dust in the bag filter falls into the ash hopper, and the staff regularly opens the ash hopper for cleaning.
本发明与现有技术相比，具有如下优点：本发明结构简单，设计巧妙，利用废气进入布袋除尘器内的动力间接推动滤袋晃动，使得滤袋发生抖动来抖掉灰尘，同时。Compared with the prior art, the present invention has the following advantages: the present invention has a simple structure and ingenious design, and uses the power of exhaust gas entering the bag filter to indirectly push the filter bag to shake, so that the filter bag shakes to shake off the dust, and at the same time.
附图说明Description of drawings
图1为具体实施方式中低能耗的工业废气净化装置的结构示意图。Fig. 1 is a schematic structural view of an industrial waste gas purification device with low energy consumption in a specific embodiment.
具体实施方式Detailed ways
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。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。In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
如图1所示，一种低能耗的工业废气净化装置，包括洗涤塔1和布袋除尘器2，洗涤塔1顶部设有排气口，布袋除尘器2的进气口与洗涤塔1的排气口通过管道3连接，所述洗涤塔1底部设有排液口17以及与废气源连通的入气口16，洗涤塔1内部中段由上至下设有数个填料层11，填料层11内填充有陶瓷球体，陶瓷球体上开设有数个通孔。填料层11上方设有喷淋管12，喷淋管12与外界的碱液箱18连接，且喷淋管12上的喷淋孔13朝向填料层11设置，洗涤塔1内顶部靠近排气口处设有活性炭干燥层14，活性炭干燥层14内部设有加热电阻丝15，加热电阻丝15外部包裹设有绝缘层，且加热电阻丝15与外界的电源通过电源开关电连接；所述碱液箱18内设有搅拌装置，碱液箱18通过加料管与皂液箱19连接。As shown in Figure 1, a low-energy industrial exhaust gas purification device includes a washing tower 1 and a bag filter 2. The gas port is connected through a pipeline 3, and the bottom of the washing tower 1 is provided with a liquid outlet 17 and an air inlet 16 connected with the waste gas source. The middle section of the washing tower 1 is provided with several packing layers 11 from top to bottom, and the packing layer 11 is filled with A ceramic sphere is provided, and several through holes are opened on the ceramic sphere. A spray pipe 12 is arranged above the packing layer 11, and the spray pipe 12 is connected with an external lye tank 18, and the spray hole 13 on the spray pipe 12 is arranged toward the packing layer 11, and the top of the washing tower 1 is close to the exhaust port. An activated carbon drying layer 14 is provided at the place, and the activated carbon drying layer 14 is provided with a heating resistance wire 15, and the heating resistance wire 15 is wrapped with an insulating layer, and the heating resistance wire 15 is electrically connected with the external power supply through a power switch; the lye A stirring device is provided in the case 18, and the lye case 18 is connected with the soap case 19 by a feeding pipe.
所述布袋除尘器2顶部设有出气口、底部设有灰斗22、内部设有顶部敞口的滤袋21，滤袋21顶部敞口与出气口连通，布袋除尘器2的进气口包括开设于外壁两侧的上进气口27和下进气口28，上进气口27高于下进气口28设置，连接所述进气口与洗涤塔排气口的管道3上设有风机31，布袋除尘器2内设有用于封堵进气口的封门4，封门4顶部与布袋除尘器2内壁铰接；所述滤袋21的外壁上、下一体套设有上推环23和下推环24，倾斜设置的上连杆25、下连杆26一端分别铰接上推环23和下推环24，另一端皆铰接布袋除尘器2内壁，上、下连杆的中段分别通过推杆41与上、下进气口处的封门4铰接。The top of the bag filter 2 is provided with an air outlet, the bottom is provided with an ash hopper 22, and the inside is provided with a filter bag 21 with an open top. The top opening of the filter bag 21 is connected to the air outlet. Open the upper air inlet 27 and the lower air inlet 28 on both sides of the outer wall, the upper air inlet 27 is higher than the lower air inlet 28, and the pipeline 3 connecting the air inlet and the scrubber outlet is provided with The fan 31, the bag filter 2 is provided with a door 4 for blocking the air inlet, the top of the door 4 is hinged with the inner wall of the bag filter 2; the upper and lower outer walls of the filter bag 21 are provided with an upper push ring 23 and Push down the ring 24, one end of the upper connecting rod 25 and the lower connecting rod 26 arranged obliquely are respectively hinged to the upper push ring 23 and the lower push ring 24, and the other ends are hinged to the inner wall of the bag filter 2, and the middle sections of the upper and lower connecting rods are respectively pushed Bar 41 is hinged with the sealing door 4 at upper and lower air inlet places.
所述封门、推环、连杆和推杆采用PVC塑料制成。Described sealing door, push ring, connecting rod and push rod adopt PVC plastics to make.
本发明工作过程如下：The working process of the present invention is as follows:
首先利用加料管将皂液箱内的肥皂溶液加入碱液箱内，并通过搅拌装置搅拌均匀，然后将废气从洗涤塔底部的入气口排入洗涤塔，然后利用喷淋管将碱液箱中的碱性液体从喷淋孔喷出，碱液首先滴在填料层内，由于填料层内填充有陶瓷球体，且陶瓷球体上开设有通孔，所以填料层能够很好地吸附废气并使其充分与碱性液体接触，以除去废气中的硫化物和硝化物，而且由于碱性液体中混合有肥皂液，很容易在陶瓷球体之间以及陶瓷球体的通孔处形成泡状液膜，再度提高了废气与碱性液体的接触面积。当然碱性液体也会从填料层上下滴，废气在上升过程中也会直接接触碱性液体进行脱硫脱硝作业，最终废气上升至洗涤塔顶部时接触活性炭干燥层，废气中的水分被活性炭吸附，同时加热电阻丝也可以通电以对废气进行加热除湿，防止废气携带较多的水分并通过管道进入布袋除尘器内。所述加热电阻丝外部包裹有绝缘层，防止水分接触加热电阻丝造成导电现象。洗涤塔内的碱性液体最终从排液口排出并被收集，可以进行循环使用。First, use the feeding pipe to add the soap solution in the soap tank into the lye tank, and stir it evenly through the stirring device, then discharge the waste gas from the air inlet at the bottom of the washing tower into the washing tower, and then use the spray pipe to pour the soap solution into the lye tank The alkaline liquid is sprayed from the spray hole, and the alkaline liquid is first dropped into the packing layer. Since the packing layer is filled with ceramic spheres, and there are through holes on the ceramic spheres, the packing layer can well absorb the exhaust gas and make it Fully contact with the alkaline liquid to remove sulfide and nitrate in the exhaust gas, and because the alkaline liquid is mixed with soap liquid, it is easy to form a bubble-like liquid film between the ceramic spheres and at the through holes of the ceramic spheres. The contact area between exhaust gas and alkaline liquid is increased. Of course, the alkaline liquid will also drip from the packing layer, and the exhaust gas will directly contact the alkaline liquid for desulfurization and denitrification during the rising process. Finally, when the exhaust gas rises to the top of the washing tower, it will contact the dry layer of activated carbon, and the moisture in the exhaust gas will be absorbed by the activated carbon. At the same time, the heating resistance wire can also be energized to heat and dehumidify the exhaust gas, preventing the exhaust gas from carrying more water and entering the bag filter through the pipe. The heating resistance wire is wrapped with an insulating layer to prevent conduction caused by moisture contacting the heating resistance wire. The alkaline liquid in the washing tower is finally discharged from the discharge port and collected, which can be recycled.
经过脱硫脱硝处理后的废气（废气经过除湿后和加热，能够有效脱除水分，防止水分进入布袋除尘器）在风机的作用下，通过管道同时从布袋除尘器的上、下进气口排入布袋除尘器内：由于布袋除尘器内壁上铰接有封门，而封门在自重作用下封闭上、下进气口，所以废气在进入布袋除尘器内部时需要顶开封门，而风机的鼓风（可以将外界空气鼓入管道，也可以将管道内的废气抽出并经过风机叶轮加速后鼓入管道）可以给予废气一定动能以顶开封门。当封门被推动时，废气进入布袋除尘器内，同时封门绕顶部铰接处转动，这就造成封门带动推杆上移，而推杆与连杆铰接，连杆两端分别铰接布袋除尘器内壁和相应推环，这就造成相应推环作远离相应进气口的动作，即：上进气口处的封门通过相应推杆带动上连杆底端移动，进而使得上连杆推动上推环和滤袋上部远离上进气口；下进气口处的封门通过相应推杆带动下连杆底端移动，进而使得下连杆推动下推环和滤袋下部远离下进气口。如此，滤袋上部和下部反向移动，实现滤袋整体的抖动，以除去滤袋外表吸附的灰尘，防止灰尘堵塞滤袋滤孔。同样的，封门复位或者封门受到的废气顶推力不均匀时（风机可采用变频风机，可以调整转速或者进行间歇式启动和关闭，进而使得封门受到的废气顶推力不同），也会造成滤袋的抖动，进而抖掉灰尘。最终废气穿过滤袋，颗粒物被滤袋过滤，使得洁净的气体从布袋过滤器顶部出气口排至外界。The waste gas after desulfurization and denitrification treatment (the waste gas can effectively remove moisture and prevent moisture from entering the bag filter after dehumidification and heating) is discharged into the bag filter from the upper and lower inlets of the bag filter through the pipe simultaneously under the action of the fan. Inside the bag filter: Since the inner wall of the bag filter is hinged with a sealing door, and the sealing door closes the upper and lower air inlets under the action of its own weight, the exhaust gas needs to be opened when it enters the bag filter, and the blower of the fan (can The external air is blown into the pipe, and the waste gas in the pipe can also be pumped out and accelerated by the fan impeller to blow into the pipe) to give the waste gas a certain kinetic energy to push the door open. When the sealing door is pushed, exhaust gas enters the bag filter, and at the same time, the sealing door rotates around the top hinge, which causes the sealing door to drive the push rod to move upward, and the push rod is hinged to the connecting rod, and the two ends of the connecting rod are respectively hinged to the inner wall of the bag filter and The corresponding push ring, which causes the corresponding push ring to move away from the corresponding air inlet, that is, the sealing door at the upper air inlet drives the bottom end of the upper link to move through the corresponding push rod, so that the upper link pushes the upper push ring and The upper part of the filter bag is away from the upper air inlet; the sealing door at the lower air inlet drives the bottom end of the lower connecting rod to move through the corresponding push rod, so that the lower connecting rod pushes the lower push ring and the lower part of the filter bag away from the lower air inlet. In this way, the upper and lower parts of the filter bag move in reverse to realize the shaking of the filter bag as a whole, so as to remove the dust adsorbed on the surface of the filter bag and prevent dust from clogging the filter holes of the filter bag. Similarly, when the door seal is reset or the exhaust gas push force received by the door seal is uneven (the fan can use a frequency conversion fan, which can adjust the speed or start and close intermittently, so that the exhaust gas push force received by the door seal is different), it will also cause filter bags. Shake to shake off the dust. Finally, the exhaust gas passes through the filter bag, and the particulate matter is filtered by the filter bag, so that the clean gas is discharged from the top outlet of the bag filter to the outside.
布袋除尘器内的灰尘落入灰斗，工作人员定时开启灰斗进行清灰作业。The dust in the bag filter falls into the ash hopper, and the staff regularly opens the ash hopper for cleaning.
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