CN201175681Y - A filter anode electrostatic precipitator - Google Patents
A filter anode electrostatic precipitator Download PDFInfo
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- CN201175681Y CN201175681Y CNU2008200562691U CN200820056269U CN201175681Y CN 201175681 Y CN201175681 Y CN 201175681Y CN U2008200562691 U CNU2008200562691 U CN U2008200562691U CN 200820056269 U CN200820056269 U CN 200820056269U CN 201175681 Y CN201175681 Y CN 201175681Y
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 27
- 239000003546 flue gas Substances 0.000 abstract description 27
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000012716 precipitator Substances 0.000 abstract description 3
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000012718 dry electrostatic precipitator Substances 0.000 description 2
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- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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Abstract
本实用新型公开了一种过滤阳极电除尘器，其特征在于阳极电除尘室外壁设有阴极绝缘室，阳极电除尘室内设有金属阳极过滤袋，金属阳极过滤袋之间设有与阴极绝缘室连接的阴极线，阳极电除尘室外壁还设有阴极振打，金属阳极过滤袋上方设有反吹喷嘴，阳极电除尘室上方设有与阳极除尘室相通的净气室，净气室与出气口连通，阳极电除尘室下方设有灰斗。本实用新型是通过将电除尘的低阻力和高温特性与布袋除尘的高效率有机结合，组成一种新的高效低阻网式阳极电除尘装置。它结合了两种干法除尘器的优点，具有除尘效率高，系统阻力低，维修简单，寿命长的优点，能满足今后环保烟气除尘的要求。
The utility model discloses a filter anode electric precipitator, which is characterized in that a cathode insulation room is arranged on the wall of the anode electric dust removal chamber, a metal anode filter bag is arranged in the anode electric dust removal chamber, and a cathode insulation room is arranged between the metal anode filter bags. The connected cathode line, the wall of the anode electrostatic precipitator chamber is also equipped with cathode rapping, the metal anode filter bag is provided with a blowback nozzle, and the anode electrostatic precipitator is provided with a clean air chamber connected with the anode dust chamber. The air port is connected, and there is an ash hopper under the anode electrostatic precipitator. The utility model combines the low resistance and high temperature characteristics of electric dust removal with the high efficiency of bag dust removal to form a new high-efficiency and low-resistance net-type anode electric dust removal device. It combines the advantages of the two dry dust collectors, and has the advantages of high dust removal efficiency, low system resistance, simple maintenance and long life, and can meet the requirements of environmental protection flue gas dust removal in the future.
Description
技术领域 technical field
本实用新型涉及除尘器领域，具体涉及一种烟气除尘使用的过滤阳极电除尘器。The utility model relates to the field of dust collectors, in particular to a filter anode electric dust collector used for flue gas dust removal.
背景技术 Background technique
当前，国家下达的节能减排任务十分坚决，各地的环保治理已经要求从量到质的转变，而目前各个钢厂、冶金、电站、建材、化工等行业的排污企业使用湿法除尘、电除尘、布袋除尘。At present, the energy-saving and emission-reduction tasks issued by the state are very firm, and the environmental protection management in various places has required a change from quantity to quality. , Bag dust removal.
湿法除尘运转阻力只有达到20000Pa的时候才能达到排烟除尘100mg/Nm3，具有典型代表的是从日本引进的OG湿法除尘装置；国内普通湿法除尘阻力只有1500Pa，排烟除尘能力仅为大于250mg/Nm3，具有典型代表的是旋流板麻石除尘器。由于该法的除尘效率太低，耗水多，二次污染问题突出，现时已经逐步被干法电除尘器取代。Only when the operation resistance of wet dust removal reaches 20000Pa can it reach 100mg/Nm 3 for exhaust and dust removal. The typical representative is the OG wet dust removal device imported from Japan; the resistance of ordinary wet dust removal in China is only 1500Pa, and the dust removal capacity More than 250mg/Nm 3 , the typical representative is the swirling plate granite dust collector. Because the dedusting efficiency of this method is too low, the water consumption is high, and the problem of secondary pollution is serious, it has been gradually replaced by dry electrostatic precipitator.
静电除尘器是利用强电场电晕放电使气体电离、粉尘荷电，在电场力的作用下使粉尘趋向沉积金属阳极板上，从而净化烟气粉尘和细微有机物体。世界上金属阳极有板状的，管状的，多边型蜂窝状的，早已成型。静电除尘器其特点是：除尘器系统阻力小(一般小于300Pa)，在现有除尘装置中能量损失最小；高温电除尘器可以在400℃的高温烟气状况下正常工作，特别适合冶金、钢厂、化工的工艺烟气除尘和烟气脱硝等高温烟气净化要求；除尘介质的比电阻适合在1×104～1×1013Ω.cm，对于比较高的比电阻的石灰、二氧化化硅等烟气粉尘，除尘效果不佳；由于阴阳极振打装置引起的二次扬尘问题不好解决国内四电场的电除尘器除尘效果只能保持100mg/Nm3～150mg/Nm3，国外为了提高除尘效果达到外排烟气20mg/Nm3～50mg/Nm3的目的，已经使用干法6～12电场的电除尘器或布袋除尘器，国内为了达标排放的目的，也在改造电除尘器为布袋除尘器，比较典型的是：新建电厂、垃圾焚烧厂的除尘设备为布袋除尘器。The electrostatic precipitator uses a strong electric field corona discharge to ionize the gas and charge the dust. Under the action of the electric field force, the dust tends to deposit on the metal anode plate, thereby purifying the flue gas dust and fine organic objects. Metal anodes in the world are plate-shaped, tubular, and polygonal honeycomb-shaped, which have already been formed. The characteristics of the electrostatic precipitator are: the resistance of the precipitator system is small (generally less than 300Pa), and the energy loss is the smallest among the existing dust removal devices; High-temperature flue gas purification requirements such as flue gas dust removal and flue gas denitrification in factories and chemical industries; the specific resistance of the dust removal medium is suitable for 1×10 4 ~ 1×10 13 Ω.cm, for lime and carbon dioxide with relatively high specific resistance Flue gas dust such as silicon dioxide, the dust removal effect is not good; the secondary dust problem caused by the anode and cathode rapping device is not easy to solve the dust removal effect of the domestic four-electric field electrostatic precipitator can only maintain 100mg/Nm 3 ~ 150mg/Nm 3 , foreign countries In order to improve the dust removal effect and achieve the purpose of exhausting flue gas of 20mg/Nm 3 ~ 50mg/Nm 3 , dry electrostatic precipitators or bag dust collectors with 6 ~ 12 electric fields have been used. In order to meet the emission standards, electric dust collectors are also being transformed. The dust collector is a bag filter, and it is typical that the dust removal equipment of a new power plant and a waste incineration plant is a bag filter.
布袋除尘器也称过滤式除尘器，它是利用纤维编织物制作的袋状过滤元件来截留烟气中的固体颗粒物，它的特点：除尘效率高，出口排放稳定，可以达到30～50mg/Nm3；排尘浓度对介质特性不敏感，不受粉尘比电阻影响；布袋除尘器清灰周期、滤袋使用寿命受烟气粉尘浓度影响大，粉尘浓度越高，清灰时间和滤袋使用寿命短；运行阻力大，一般为1500Pa～2500Pa，运行耗能高；一般不适宜高温烟气下运行，换取高温布袋可以在小于200℃状态下运行，费用昂贵。The bag dust collector is also called filter dust collector. It uses a bag-shaped filter element made of fiber braid to intercept solid particles in the flue gas. Its characteristics: high dust removal efficiency, stable outlet discharge, can reach 30 ~ 50mg/Nm 3 ; The dust concentration is not sensitive to the characteristics of the medium and is not affected by the specific resistance of the dust; the dust cleaning cycle of the bag filter and the service life of the filter bag are greatly affected by the dust concentration of the flue gas. The higher the dust concentration, the longer the cleaning time and the service life of the filter bag Short; running resistance is large, generally 1500Pa ~ 2500Pa, high energy consumption; generally not suitable for high-temperature flue gas operation, in exchange for high-temperature bag can be operated at less than 200 ℃, the cost is expensive.
实用新型内容Utility model content
本实用新型的目的在于提供一种除尘效率高，系统阻力低，维修简单，寿命长，能满足今后环保烟气除尘的要求的过滤阳极电除尘器。The purpose of the utility model is to provide a filter anode electrostatic precipitator with high dust removal efficiency, low system resistance, simple maintenance and long service life, which can meet the requirements of environmental protection flue gas dust removal in the future.
为了实现这一目的，本实用新型的技术方案如下：一种过滤阳极电除尘器，包括进气口，出气口，进气口与阳极电除尘室连通，其特征在于阳极电除尘室外壁设有阴极绝缘室，阳极电除尘室内设有金属阳极过滤袋，金属阳极过滤袋之间设有与阴极绝缘室连接的阴极线，阳极电除尘室外壁还设有阴极振打，金属阳极过滤袋上方设有反吹喷嘴，阳极电除尘室上方设有与阳极除尘室相通的净气室，净气室与出气口连通，阳极电除尘室下方设有灰斗。In order to achieve this purpose, the technical solution of the present utility model is as follows: a filter anode electrostatic precipitator, comprising an air inlet, an air outlet, the air inlet communicates with the anode electrostatic precipitator, and is characterized in that the anode electric precipitator wall is provided with The cathode insulation room and the anode electrostatic precipitator are equipped with metal anode filter bags, and the cathode wires connected with the cathode insulation room are arranged between the metal anode filter bags. There is a blowback nozzle, and a clean air chamber connected to the anode dust removal chamber is arranged above the anode electric dust removal chamber.
本发明是通过将电除尘的低阻力和高温特性与布袋除尘的高效率有机结合，组成一种新的高效低阻网式阳极电除尘装置。它结合了两种干法除尘器的优点，具有除尘效率高，系统阻力低，维修简单，寿命长的优点，能满足今后环保烟气除尘的要求，克服了当前钢厂、冶金、电站、建材、化工等行业已有除尘设备进一步节能减排的障碍。适合应用于钢厂、冶金、电站、建材、化工等行业的烟气精密除尘，特别适合于小于600℃的高温烟气精密除尘作业。The invention combines the low resistance and high temperature characteristics of electric dust removal with the high efficiency of bag dust removal to form a new high-efficiency and low-resistance net-type anode electric dust removal device. It combines the advantages of two kinds of dry dust collectors. It has the advantages of high dust removal efficiency, low system resistance, simple maintenance and long life. In industries such as chemical industry and chemical industry, there are obstacles for further energy saving and emission reduction of dust removal equipment. It is suitable for precision dust removal of flue gas in steel mills, metallurgy, power stations, building materials, chemical industry and other industries, especially for high temperature flue gas precision dust removal operations less than 600 °C.
附图说明 Description of drawings
图1为本实用新型的结构示意图Fig. 1 is the structural representation of the utility model
图2为A处的放大图Figure 2 is an enlarged view of A
具体实施方式 Detailed ways
图中：1卸灰阀、2灰斗、3进气口、4阴极振打、5阳极电除尘室、6金属阳极过滤袋、7阴极线、8反吹喷嘴、9脉冲装置、10高压电源、11净气室，12阴极绝缘室、13振动器、14设备支架、15布袋花板、16出气口In the figure: 1 ash unloading valve, 2 ash hopper, 3 air inlet, 4 cathode rapping, 5 anode electrostatic precipitator, 6 metal anode filter bag, 7 cathode line, 8 blowback nozzle, 9 pulse device, 10 high voltage power supply , 11 Clean air chamber, 12 Cathode insulation chamber, 13 Vibrator, 14 Equipment support, 15 Bag flower plate, 16 Air outlet
图中所示的过滤阳极电除尘器，包括进气口3，出气口16，其特征在于进气口3与阳极电除尘室5连通，阳极电除尘室5外壁设有阴极绝缘室12，阳极电除尘室5内设有多个金属阳极过滤袋6，金属阳极过滤袋6之间设有与阴极绝缘室12连接的阴极线7，阳极电除尘室5外壁还设有阴极振打4，金属阳极过滤袋6上方设有反吹喷嘴8，阳极电除尘室5上方设有与阳极电除尘室相通的净气室11，净气室11与出气口16连通，阳极电除尘室5下方设有灰斗2。The filter anode electrostatic precipitator shown in the figure comprises an air inlet 3 and an
过滤阳极电除尘器是把电除尘器的阴极线设计在原来布袋除尘器的布袋之间，阴极线7采用芒刺线、星型线等传统极线，高压电通过阴极线7对粉尘进行荷电，在电场力的作用下荷电粉尘克服布朗运动趋向阳极。The filter anode electrostatic precipitator is to design the cathode line of the electrostatic precipitator between the bags of the original bag filter. The cathode line 7 adopts traditional pole lines such as prickly wires and star lines, and the high-voltage electricity passes through the cathode line 7. Charging, under the action of the electric field force, the charged dust overcomes the Brownian motion and tends to the anode.
过滤阳极电除尘器的阳极以金属阳极过滤袋6代替，金属阳极过滤袋6采用金属丝编制而成，密度根据除尘对象而定为20目～800目。由于采用了电除尘器的工作原理，荷电粉尘在电场力的作用下趋向金属阳极过滤袋6，这样可以利用粉尘的电场力的吸力和搭桥效应，金属阳极过滤袋6可以采用密度不高的滤网，为减少该过滤阳极电除尘器的运行阻力创造了条件。同时，又由于采用了金属过滤袋的原因，处理高温烟气变成顺理成章的事情。Filter anode The anode of the electrostatic precipitator is replaced by a metal anode filter bag 6, which is made of metal wire, and the density is 20 mesh to 800 mesh according to the dust removal object. Due to the working principle of the electrostatic precipitator, the charged dust tends to the metal anode filter bag 6 under the action of the electric field force, so that the suction and bridging effect of the electric field force of the dust can be used, and the metal anode filter bag 6 can be made of low density The filter screen creates conditions for reducing the running resistance of the filter anode electrostatic precipitator. At the same time, due to the use of metal filter bags, it is a matter of course to deal with high-temperature flue gas.
所述的阳极电除尘室5同原布袋除尘器的进烟气室相同，仅增加阴极绝缘室12及阴极吊挂架(未示出)、阴极振打4。The anode electrostatic precipitator chamber 5 is the same as the flue gas inlet chamber of the original bag filter, only the cathode insulation chamber 12, the cathode hanger (not shown), and the
高压电源10、阴极吊挂架、阴极振打4可以使用原有电除尘器的高压电源、阴极吊挂架、阴极振打改造成该过滤阳极电除尘器的高压电源、阴极吊挂架、阴极振打。High-
布袋花板15、反吹喷嘴8、脉冲装置9、净气室11，振动器13、灰斗2、卸灰阀1、设备支架14属于布袋除尘器原有装备。还有电除尘器和布袋除尘器通常配备的辅助部件象导流板、保温、操作台，各种阀门仪表等等。
需要净化的高温(低温)烟气通过进气口3进入该过滤阳极电除尘器室5，在阳极电除尘室5的外壁上安装多个阴极绝缘室12，用以架起金属阳极过滤袋6之间的阴极线7，在阳极电除尘室5的外壁上还有阴极振打4按时对阴极线7进行机械振打清除粘附在上面的灰尘；阴极线7得到高压电源10的高压电源对进到高效低阻过滤阳极电除尘器室5内的烟气进行强电场力的荷电，烟气中的荷电粉尘在电场力和烟气引力的双作用下趋向金属阳极过滤袋6的外壁上，形成互为排斥的松散颗粒层，当颗粒层达到规定厚度的时候，脉冲装置9定时开启，高压反冲气体通过反吹喷嘴8吹进金属阳极过滤袋6进行脉冲反吹清灰处理，以便保证烟气低阻力状况下通过金属阳极过滤袋6，金属阳极过滤袋6安装在布袋花板15上，布袋花板15隔开阳极电除尘室5和净气室11；经过净化的烟气通过布袋花板15进入净气室11，再通过出气口16外排到后续烟道中去；高效低阻过滤阳极电除尘器室5的下面设有灰斗2，灰斗2用来容纳清除下来的灰尘，灰尘积累到一定程度，通过卸灰阀1定时排放到输灰系统，为了防止灰斗2中的灰尘结块，在灰斗2上设有振动器13执行松动灰尘的工作。整台设备带有支撑重量的设备支架14。The high-temperature (low-temperature) flue gas that needs to be purified enters the filter anode electrostatic precipitator chamber 5 through the air inlet 3, and a plurality of cathode insulation chambers 12 are installed on the outer wall of the anode electrostatic precipitator chamber 5 to set up the metal anode filter bag 6 Between the cathode line 7, on the outer wall of the anode electrostatic precipitator chamber 5, there is also cathode rapping 4 to mechanically rap the cathode line 7 to remove the dust adhering to it; The flue gas entering the chamber 5 of the high-efficiency and low-resistance filter anode electrostatic precipitator is charged by a strong electric field force, and the charged dust in the flue gas tends to the outer wall of the metal anode filter bag 6 under the double action of the electric field force and the gravitational force of the flue gas When the particle layer reaches the specified thickness, the pulse device 9 is turned on regularly, and the high-pressure recoil gas is blown into the metal anode filter bag 6 through the reverse blow nozzle 8 for pulse reverse blow soot cleaning. In order to ensure that the flue gas passes through the metal anode filter bag 6 under the condition of low resistance, the metal anode filter bag 6 is installed on the cloth
本发明的功效是：Effect of the present invention is:
(1)比较现有四电场的电除尘器，由于克服了二次扬灰的问题，除尘效果大大提高；比较原有电除尘，由于后级布袋把关，没有了烟气粉尘比电阻大于1×1013的烟气除尘效果不佳的困扰。一般情况下，烟气出口粉尘浓度可以达到30mg/Nm3。可以满足现有和将来环保要求的排放指标。(1) Compared with the existing electric dust collector with four electric fields, the dust removal effect is greatly improved due to overcoming the problem of secondary ash raising; compared with the original electric dust collector, due to the check of the rear stage cloth bag, there is no flue gas dust specific resistance greater than 1× 10 out of 13 are troubled by poor dust removal effect of the flue gas. Generally, the dust concentration at the flue gas outlet can reach 30mg/Nm 3 . Emission indicators that can meet current and future environmental protection requirements.
(2)比较现有布袋除尘器，由于增设了阴极线，对烟气进行高压荷电，除尘效果在过滤和静电的加和作用下，布袋的系统阻力大大减少，一般的操作压力在500Pa～1000Pa之间，节能效果显著。(2) Compared with the existing bag filter, due to the addition of the cathode line, the high-voltage charging of the flue gas, the dust removal effect is under the combined action of filtration and static electricity, and the system resistance of the bag is greatly reduced. The general operating pressure is 500Pa~ Between 1000Pa, the energy saving effect is remarkable.
(3)使用金属阳极过滤袋，可以提高布袋除尘器的使用温度，在小于600℃的情况下满足冶金、化工等高温烟气的处理。(3) The use of metal anode filter bags can increase the operating temperature of the bag filter, and meet the treatment of high-temperature flue gas in metallurgy and chemical industries when the temperature is less than 600 °C.
(4)由于采用了金属阳极过滤袋，可以避免原布袋堵塞和破袋的几率，提高现有布袋除尘器的使用寿命，减少现有布袋除尘器的检修、维护工作量。(4) Due to the use of metal anode filter bags, the probability of blockage and bag breakage of the original bag can be avoided, the service life of the existing bag filter can be improved, and the inspection and maintenance workload of the existing bag filter can be reduced.
(5)由于具有以上的优势，可以大张旗鼓地改造现有电除尘器，特别适合改造现有三电场的电除尘器，以便满足节能减排的硬性指标的完成。(5) Due to the above advantages, the existing electrostatic precipitator can be transformed with great fanfare, especially suitable for the transformation of the existing three-electric field electrostatic precipitator, so as to meet the completion of the hard indicators of energy saving and emission reduction.
(6)比较满足30mg/Nm3外排粉尘指标的电除尘器，高效低阻网式阳极电除尘器的一次性投资可以节省50％的投资；比较满足30mg/Nm3外排粉尘指标的高温布袋除尘器，高温电布袋除尘器的一次性投资可以节省30％的投资。(6) Compared with the electrostatic precipitator that meets the 30mg/Nm 3 effluent dust index, the one-time investment of the high-efficiency and low-resistance net anode electrostatic precipitator can save 50% of the investment; compared with the high temperature that meets the 30mg/Nm 3 effluent dust index The one-time investment of bag filter and high temperature electric bag filter can save 30% of the investment.
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| CNU2008200562691U CN201175681Y (en) | 2008-03-14 | 2008-03-14 | A filter anode electrostatic precipitator |
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| CN102218373A (en) * | 2010-01-29 | 2011-10-19 | 三星电子株式会社 | Electric dust removing device and home appliance having the electric dust removing device |
| CN102481582A (en) * | 2009-09-04 | 2012-05-30 | 优诺思气体技术公司 | Device in connection with a circular precipitator for a two- stage electrostatic filter |
| CN107159466A (en) * | 2017-06-22 | 2017-09-15 | 浙江菲达环保科技股份有限公司 | A kind of composite metal net positive plate electric cleaner |
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- 2008-03-14 CN CNU2008200562691U patent/CN201175681Y/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102481582A (en) * | 2009-09-04 | 2012-05-30 | 优诺思气体技术公司 | Device in connection with a circular precipitator for a two- stage electrostatic filter |
| CN102481582B (en) * | 2009-09-04 | 2015-08-12 | 优诺思气体技术公司 | The device be connected with the circular deduster for two-stage electrostatic filter |
| CN102218373A (en) * | 2010-01-29 | 2011-10-19 | 三星电子株式会社 | Electric dust removing device and home appliance having the electric dust removing device |
| CN102218373B (en) * | 2010-01-29 | 2015-11-25 | 三星电子株式会社 | Electric dust collector and there is the home appliance of this electric dust collector |
| CN107029888B (en) * | 2017-04-28 | 2018-05-01 | 深圳市力德诺华科技有限公司 | A kind of image force dust-collecting air purifier |
| CN107159466A (en) * | 2017-06-22 | 2017-09-15 | 浙江菲达环保科技股份有限公司 | A kind of composite metal net positive plate electric cleaner |
| CN107185714A (en) * | 2017-06-22 | 2017-09-22 | 浙江菲达环保科技股份有限公司 | Metal screen positive plate electric cleaner |
| CN108096946A (en) * | 2017-12-23 | 2018-06-01 | 江苏康洁环境工程有限公司 | A kind of back-blowing bag-type dust collector with apparatus for monitoring power supply |
| CN108654837A (en) * | 2018-06-08 | 2018-10-16 | 深圳市睿维盛环保科技有限公司 | A kind of efficient composite dust pelletizing system |
| CN117399177A (en) * | 2023-10-24 | 2024-01-16 | 西安热工研究院有限公司 | Electrostatic precipitator with metal filter bag anode |
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