Fine-particle collection using an electrostatic precipitator equipped with an electrostatic flocking filter as the collecting electrode
Fine-particle collection using an electrostatic precipitator equipped with an electrostatic flocking filter as the collecting electrode
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DOI：
10.1002/ppap.200600035
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发表时间：
2006-11-17
影响因子：
3.5
通讯作者：
Mizuno, Akira
中科院分区：
文献类型：
--
作者：
Sung, Bong-Jo;Aly, Ahmed;Mizuno, Akira
近年来，特别关注的环境问题是控制细颗粒物（0.1至1.0 μ m）的排放。这些细颗粒可能会导致严重的健康危害，因为重金属和有毒化合物吸附在颗粒上。为了提高微细粒子的捕集效率，本研究采用了静电植绒技术。该技术基于增加收集电极的表面积和在纤维尖端产生梯度力以抑制再夹带。在静电植绒电极电除尘器中，对微细纤维对微细颗粒捕集效率的影响进行了实验研究。在直流电压为9 kV时，电除尘器的除尘效率约为95%，比平板电极的除尘效率高，且停留时间短（0.06 s）。我们证实了细颗粒聚集在植绒纤维的尖端。这些结果表明，在这项研究中检查的新型电除尘器是有效的，以提高微细颗粒的去除性能。
In recent years, special environmental concern is directed towards controlling the emission of fine particles (from 0.1 to 1.0 mu m). These fine particles possibly cause serious health hazards because of heavy metals and toxic compounds adsorbed on the particles. To improve the collection efficiency of fine particles, the electrostatic flocking technique has been employed in this study. This technique is based on increasing the surface area of the collecting electrode and on producing a gradient force at the tip of fibers to suppress the re-entrainment. In this article, an experimental study was performed to evaluate the effect of fine fibers on the collection efficiency of fine particles using the ESP with electrostatic flocking electrodes as collecting plates. The ESP achieved a collection efficiency of about 95% at a d.c. voltage of 9 kV, which was higher than that of flat-plate electrode for fine particles (0.3-0.5 mu min diameter) with a short residence time (0.06 s). We confirmed that the fine particles agglomerated at the tip of the flocking fibers. These results indicate that the new type of ESP examined in this study is effective to improve the removal performance of fine particles.