液雾荷电高效团聚颗粒物实验研究  

Experimental study on the efficient agglomeration of particles by charged spray

作　　者：齐永锋 单小伟 王妹婷 徐爱杰 吴江 何洪娟 杨霄 韩笑天 刘心雪 张迪 葛攀乐 QI Yongfeng;SHAN Xiaowei;WANG Meiting;XU Aijie;WU Jiang;HE Hongjuan;YANG Xiao;HAN Xiaotian;LIU Xinxue;ZHANG Di;GE Panle(School of Hydraulic,Energy and Power Engineering,Yangzhou University,Yangzhou Jiangsu 225127;College of Energy and Mechanical Engineering,Shanghai University of Electric Power,Shanghai 200090)

机构地区：[1]扬州大学水利与能源动力工程学院,江苏扬州225127 [2]上海电力学院能源与机械工程学院,上海200090

出　　处：《环境污染与防治》2018年第12期1327-1332,共6页Environmental Pollution & Control

基　　金：国家自然科学基金资助项目(No.51106133);国家星火计划项目(No.2015GA690279);江苏省科技支撑计划(社会发展)项目(No.BE2014682);扬州科技计划项目(No.YZ2016261;No.YZ2015043);扬州大学科技创新培育基金项目(No.2016CXJ037;No.2017CXJ048)

摘　　要：针对颗粒物危害环境及人类健康但难以高效脱除的问题,以粉煤灰和碳黑颗粒为研究对象,提出了结合化学团聚和水雾荷电两种方法的液雾荷电团聚技术,并对颗粒物进行了团聚捕集实验。研究发现,液雾荷电能够有效促进颗粒物的团聚。以粉煤灰为例,其团聚效率分别比水雾增湿、水雾荷电和化学团聚提高了34.1百分点、13.8百分点、11.9百分点。在团聚剂中羧甲基纤维素钠的质量分数为0.3%、喷雾量为800mL/h、荷电电压为6.0kV的工况下,粉煤灰的团聚效率最佳值可达58.5%。In order to deal with the issue of removing the particles harmful to the environment and human health effectively,the charged spray agglomeration was proposed with fly ash and carbon black as subjects in this paper.Based on the technology combining the advantages of chemical agglomeration and charged spray,the agglomeration experiments of particles were carried out.It was found that the charged spray agglomeration could agglomerate the particles significantly.Taking fly ash for example,when compared with spray,charged spray and chemical agglomeration,efficiency of this method was increased by34.1percentage points,13.8percentage points and11.9percentage points,respectively.Moreover,the agglomeration efficiency could be up to58.5%when the mass fraction of sodium carboxymethyl cellulose was0.3%,the flow rate of spray was800mL/h and the voltage was6.0kV.

关 键 词：颗粒物 液雾荷电 优化耦合 高效捕集 

分 类 号：X513[环境科学与工程—环境工程]