细颗粒物荷电凝并技术研究进展
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摘要
我国很多城市存在颗粒粉尘浓度超标的现象,可吸入性粉尘无论对环境和人体都有较大的危害,治理烟尘污染刻不容缓,但粉尘粒径小而难以被除尘器直接捕集,而荷电凝并可通过电场的作用使粉尘粒子荷电而发生凝并,增大有效直径从而便于捕集.综述了国内外电凝并技术的研究进展,主要包括交变电场中同极性荷电颗粒凝并、直流电场中异极性荷电颗粒凝并、交变电场中异极性荷电颗粒凝并;介绍了几种荷电凝并方法,提出提高荷电凝并几率方法的主要发展趋势,为电凝并技术的实际应用和装备开发提供参考.
The phenomenon of excessive concentration of particulate dust exists in many cities in China. Inhalable dust has great harm to the environment and human body,so it is imperative to control the dust pollution. However, it is difficult to be directly caught by precipitator because of the small particle size. Agglomeration is a simple and easy way to accumulate the dust particles by the action of electric field and to coagulate and increase the effective diameter to facilitate trapping. The agglomeration of homopolar and heteropole charged particles in alternating electric field,the coulomb agglomeration of heteropole charged particles and the agglomeration of heteropole charged particles in direct-current electric field are introduced. Several new electric agglomeration structures are introduced,and the main development tendency is proposed, which provides theoretical and technical support for the industrial application of electric agglomeration technology.
The phenomenon of excessive concentration of particulate dust exists in many cities in China. Inhalable dust has great harm to the environment and human body,so it is imperative to control the dust pollution. However, it is difficult to be directly caught by precipitator because of the small particle size. Agglomeration is a simple and easy way to accumulate the dust particles by the action of electric field and to coagulate and increase the effective diameter to facilitate trapping. The agglomeration of homopolar and heteropole charged particles in alternating electric field,the coulomb agglomeration of heteropole charged particles and the agglomeration of heteropole charged particles in direct-current electric field are introduced. Several new electric agglomeration structures are introduced,and the main development tendency is proposed, which provides theoretical and technical support for the industrial application of electric agglomeration technology.
引文
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[16] 王成福.提高工业微细粉尘捕集效率研究[J].环境工程,2013,31(2):62-65.WANG C F. Study on improved collection efficiency of industry fine dust paticles[J]. Environmental Enginee-ring,2013,31(2):62-65. (in Chinese)
[17] 向晓东,陈宝智,张国权. 荷电粉尘在交变电场中的凝并与收集[J]. 东北大学学报,1999,20(6):615-618.XIANG X D, CHEN B Z, ZHANG G Q. Coagulation of bipolar charged particles in AC electric field[J]. Journal of Northeastern University, 1999, 20(6):615-618. (in Chinese)
[18] YI C W,DOU P,WU C D,et al.Experimental study on a labotratory scall transverse plate electrostatic precipitator[J].Fresenius Environmental Bulletin,2010,19 (11):2472-2479.
[19] 窦鹏. 高风速横向极板电除尘技术理论分析与实验研究[D].镇江:江苏大学,2010.
[20] 顾亚川. 新型双涡旋极板电除尘器数值模拟及实验研究[D].镇江:江苏大学,2016.
[ 2 ] 竹涛, 陈锐, 王晓佳, 等. 电凝并技术脱除PM2.5的研究现状及发展方向[J]. 洁净煤技术, 2015(2):6-9. ZHU T, CHEN R,WANG X J,et al. Research status and development direction of electric agglomeration technology for PM2.5 removal[J]. Clean Coal Technology,2015(2):6-9. (in Chinese)
[ 3 ] WATANABE T, TOCHIKUBO F, KOIZUMI Y, et al. Submicron particle agglomeration by an electrostatic agglomerator[J].Journal of Electrostatics, 1995, 34(4):367-383.
[ 4 ] 白敏菂,李超群,朱玉鹏,等.微细粉尘在交变电场中的荷电凝并研究[C]//中国物理学会第十八届全国静电学术会议会议论文集,2013:5.
[ 5 ] 王少雷.电除尘器烟道微细粉尘的荷电凝并研究[D].镇江:江苏大学,2010.
[ 6 ] 杜小朋.柴油机排气颗粒物在线—筒式电晕放电装置下荷电凝并的试验研究[D].镇江:江苏大学,2016.
[ 7 ] 马若白, 王凯全. 可吸入性粉尘电凝并效应的实验研究[J]. 工业安全与环保, 2016, 42(1):25-27.MA R B, WANG K Q. Experimental study on respirable dust electric coagulation effect[J]. Industrial Safety and Environmental Protection,2016,42(1):25-27.(in Chinese)
[ 8 ] ZUKERAN A, IKEDA Y, EHARA Y, et al. Agglome-ration of particles by AC corona discharge[J].Electrical Engineering in Japan, 2000, 130(1):30-7.
[ 9 ] TAN B, WANG L Z, ZHANG X R. The effect of an external DC electric field on bipolar charged aerosol agglomeration[J]. Journal of Electrostatics, 2007, 65(2):82-86.
[10] LU Q, YANG Z, ZHENG C. Numerical simulation on the fine particle charging and transport behaviors in a wire-plate electrostatic preci-pitator[J]. Advanced Powder Technology,2016, 27(5):1905-1911.
[11] WANG X, CHANG J, XU C,et al. Collection and charging characteristics of particles in an electrostatic preci-pitator with a wet membrane collecting electrode[J]. Journal of Electrostatics,2016, 83: 28-34.
[12] JI H, HWANG J, BAE G N,et al. Particle charging and agglomeration in DC and AC electric fields[J]. Journal of Electrostatics, 2004,61(1):57-68.
[13] LAITINEN A, HAUTANEN J, KESKINEN J, et al. Bipolar charged aerosol agglomeration with alternating electric field in laminar gas flow[J].Journal of Electrostatics, 1996, 38(4): 303-315.
[14] 刘道清, 何剑, 徐国胜. 一体式双极荷电凝并器试验研究及应用构想[J]. 宝钢技术, 2014(1):14-17.LIU D Q, HE J, XU G S. Experimental research on bipolar charging integrated agglomerator and its application presumption[J]. Bao-Steel Technology,2014(1):14-17.(in Chinese)
[15] 胡志光, 赵丽, 温鹏飞. 双极荷电和静电凝并装置的总体设计研究[J]. 广东化工, 2011, 38(12):116-117.HU Z G, ZHAO L, WEN P F. Design research on the equipment of bipolar charging and electrostatic agglome-rating[J]. Guangdong Chemical Industry, 2011, 38(12):116-117.(in Chinese)
[16] 王成福.提高工业微细粉尘捕集效率研究[J].环境工程,2013,31(2):62-65.WANG C F. Study on improved collection efficiency of industry fine dust paticles[J]. Environmental Enginee-ring,2013,31(2):62-65. (in Chinese)
[17] 向晓东,陈宝智,张国权. 荷电粉尘在交变电场中的凝并与收集[J]. 东北大学学报,1999,20(6):615-618.XIANG X D, CHEN B Z, ZHANG G Q. Coagulation of bipolar charged particles in AC electric field[J]. Journal of Northeastern University, 1999, 20(6):615-618. (in Chinese)
[18] YI C W,DOU P,WU C D,et al.Experimental study on a labotratory scall transverse plate electrostatic precipitator[J].Fresenius Environmental Bulletin,2010,19 (11):2472-2479.
[19] 窦鹏. 高风速横向极板电除尘技术理论分析与实验研究[D].镇江:江苏大学,2010.
[20] 顾亚川. 新型双涡旋极板电除尘器数值模拟及实验研究[D].镇江:江苏大学,2016.
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