东北大学学报(自然科学版) ›› 2025, Vol. 46 ›› Issue (3): 123-129.DOI: 10.12068/j.issn.1005-3026.2025.20230248

• 资源与土木工程 • 上一篇    下一篇

袋式除尘器滤料的计重和计数效率

余振辉, 柳静献(), 李国栋, 吕超   

  1. 东北大学 资源与土木工程学院,辽宁 沈阳 110819
  • 收稿日期:2023-08-28 出版日期:2025-03-15 发布日期:2025-05-29
  • 通讯作者: 柳静献
  • 作者简介:余振辉(1991—),男,安徽淮南人,东北大学博士研究生
    柳静献(1966—),男,河北元氏人,东北大学教授,博士生导师. Email:LIU Jing-xian, E-mail:82003@126.com
  • 基金资助:
    国家十四五重点研发计划项目(2022YFC2503201);国家自然科学基金资助项目(52174215);辽宁省兴辽人才计划项目(XLYC2002091);辽宁省揭榜挂帅科技攻关专项(2021JH1/10400023)

Weighting and Counting Efficiencies of Filter Media of Bag Dust Collector

Zhen-hui YU, Jing-xian LIU(), Guo-dong LI, Chao LYU   

  1. School of Resources & Civil Engineering,Northeastern University Shenyang 110819 China
  • Received:2023-08-28 Online:2025-03-15 Published:2025-05-29
  • Contact: Jing-xian LIU

摘要:

袋式除尘器滤料计重和计数效率的关联研究较少,导致其过滤性能无法得到准确评估.通过搭建过滤性能测试平台,对影响滤料计重和计数效率的2个因素进行分析.结果表明,过滤效率随过滤风速的增大而降低,且低效滤料的过滤效率降幅比高效滤料的过滤效率降幅大;相对于氧化铝粉,滤料在大气尘源环境中的过滤效率更容易受过滤风速的影响;低效滤料在两种尘源环境中的计重和计数效率相差较大;滤料在氧化铝粉环境中的过滤效率明显高于其在大气尘源环境中的过滤效率;尘源对高效滤料过滤效率的影响很小.采用计重和计数效率共同表征滤料的过滤性能更加合理.

关键词: 滤料, 过滤性能, 评价指标, 计重效率, 计数效率

Abstract:

There are few studies on the correlation between the weighting and counting efficiencies of filter media of bag dust collector, which leads to the fact that its filtration performance cannot be accurately evaluated. Two factors that affect the weighting and counting efficiencies of the filter media were analyzed through building a filtration performance test platform. The results show that the filtration efficiency decreases with the increase of filtration velocity, and the filtration efficiency of low-efficiency filter media decreases more than that of high-efficiency filter media. Compared with alumina powder, the filtration efficiency of filter media under atmospheric dust source environment is more easily affected by the filtration velocity. The weighting and counting efficiencies of low-efficiency filter media under the two kinds of dust sources environment are quite different. The filtration efficiency of the filter media under alumina powder environment is significantly higher than its filtration efficiency under atmospheric dust source environment. The dust source has little effect on the filtration efficiency of high-efficiency filter media. It is more reasonable to use both the weighting and counting efficiencies to characterize the filtration performance of filter media.

Key words: filter media, filtration performance, evaluation index, weighting efficiency, counting efficiency

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