JZUS - Journal of Zhejiang University SCIENCE

Journal of Zhejiang University SCIENCE A 2018 Vol.19 No.1 P.21-33

Recent advances in dust collection technology and ISO standardization in bag filtration

Author(s): Cheng-hang Zheng, Chikao Kanaoka
Affiliation(s): State Key Laboratory of Clean Energy Utilization, State Environmental Protection Center for Coal-fired Air Pollution Control, Zhejiang University, Hangzhou 310027, China; more
Corresponding email(s): kanaoka-4215@mail.bbexcite.jp
Key Words: Dust collection, Electrostatic precipitator (ESP), Bag filters, ISO standards

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Abstract: dust collection technology is used not only as a countermeasure for air pollution, but also as removing technology for nano-particles, simultaneous removal of gas and dust, and facilitating the use of equipment in extreme conditions such as high and low pressures and temperatures. Particle concentration in the atmosphere, especially PM_2.5, has not decreased despite a reduction in the concentration of dust discharged from stationary sources. This is thought to be because of the formation of secondary particles following the discharge of condensable and/or reactive gaseous materials. Therefore, there needs to be an improvement in dust collection technology. In this paper, recent developments in dust collection technology, especially bag filtration and electrostatic precipitators, are described, and the ISO standards related to bag filtration are summarized. The future prospects for these technologies are outlined. This paper contributes to our understanding of the capture of particulate matter, which will support the improvement of particle removal technologies and the development of future applications.

除尘技术研究进展和袋式除尘ISO标准

目的:分析当前最新的针对烟气中颗粒物的高效脱除技术,包括静电除尘和袋式除尘的提效方法、原理以及所能达到的效果等;对研究现状进行评述和对未来发展做出展望,并介绍袋式除尘的相关ISO标准.
创新点:1. 总结了各参数对静电除尘器(包括低低温静电除尘、高温静电除尘和湿式静电除尘等)除尘效率的影响;2. 分析比较了不同结构形式的滤袋并总结了适应更高过滤要求的新型过滤材料.
方法:1. 通过数据分析,比较不同粒径、比电阻和温度对静电除尘器除尘效率的影响,并提出相关改进措施;2. 比较不同形式滤袋的收尘特点,结合ISO标准和当前工业需求,对袋式除尘进行展望.
结论:1. 为保证除尘效率,对于不同特性的粉尘,可采取不同形式的静电除尘器增效技术;2. 为满足更高的过滤要求,在袋式除尘器方面,急需开发新型过滤材料和优化清灰技术,以适应更高的温度和满足更高的清灰要求.

关键词：除尘;静电除尘器;滤袋;ISO标准

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