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[1]胡晨钊,钱圢,孙立,等.滤料粉尘层动态演变机制及其对过滤性能的影响*[J].中国安全生产科学技术,2026,22(4):13-20.[doi:10.11731/j.issn.1673-193x.2026.04.002]
　HU Chenzhao,QIAN Ting,SUN Li,et al.Dynamic evolution mechanism of dust layer on filter media and its effect on filtration performance[J].Journal of Safety Science and Technology,2026,22(4):13-20.[doi:10.11731/j.issn.1673-193x.2026.04.002]
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滤料粉尘层动态演变机制及其对过滤性能的影响*

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
22
期数:
2026年4期
页码:
13-20
栏目:
安全工程技术
出版日期:
2026-04-30

文章信息/Info

Title:
Dynamic evolution mechanism of dust layer on filter media and its effect on filtration performance
文章编号:
1673-193X(2026)-04-0013-08
作者:
胡晨钊; 钱圢; 孙立; 柴志龙; 贾瑞文; 郭颖赫; 赫伟东
(1.东北大学 资源与土木工程学院，辽宁 沈阳 110819;
2.洁华控股股份有限公司，浙江 嘉兴 314419;
3.沈阳理工大学 环境与化学工程学院，辽宁 沈阳 110159)
Author(s):
HU Chenzhao;  QIAN Ting;  SUN Li;  CHAI Zhilong;  JIA Ruiwen;  GUO Yinghe;  HE Weidong
(1.School of Resources and Civil Engineering,Northeastern University,Shenyang Liaoning 110819,China;
2.Jiehua Holdings Co.,Ltd.,Jiaxing Zhejiang 314419,China;
3.School of Environmental and Chemical Engineering,Shenyang Ligong University,Shenyang Liaoning 110159,China)
关键词:
脉冲喷吹; 针刺毡滤料; 机织布覆膜滤料
Keywords:
pulse jet cleaning;  needled felt filter media;  membrane-coated woven fabric filter media
分类号:
X928.1；X701
DOI:
10.11731/j.issn.1673-193x.2026.04.002
文献标志码:
A
摘要:
为探究滤料粉尘层的动态演变规律及其影响，以热压针刺毡滤料、针刺毡滤料、针刺毡覆膜滤料、机织布覆膜滤料为研究对象，通过动态过滤测试装置获得不同状态的滤料样品，研究初始容尘阶段滤料内部粉尘的沉积规律，以及脉冲喷吹前后粉尘层演变对滤料过滤性能的影响。研究结果表明：具有表面精细结构的滤料，其首个过滤周期可分为阻力快速增长、增长过渡和线性增长3个阶段，分别对应表面孔隙快速堵塞、表面容尘趋于饱和与粉尘层结构稳定后均匀沉积的过程。滤料经历脉冲喷吹后，迎尘面部分粉尘清除，内部粉尘重新分布且少量增加，针刺毡滤料因气流通道不规律，基材浅层粉尘残留多；覆膜滤料受表面精细结构影响，脉冲气流在内部作用更加充分，粉尘重分布更加均匀，但易在次级界面累积。滤料结构差异导致的粉尘重分布特征不同，直接影响滤料的残余阻力与透气度特性；覆膜滤料残余阻力总体更高，喷吹后透气度可恢复约13％，针刺毡滤料变化较小。研究结果可为滤料的优化设计、清灰策略的合理制定以及除尘系统的节能稳定运行提供参考。
Abstract:
In order to investigate the dynamic evolution patterns of dust cake layers on filter media and their effects on filtration performance,hot-pressed needled felt filter media,needled felt filter media,membrane-coated needled felt filter media,and membrane-coated woven fabric filter media are selected as research objects.Filter media samples in different states are obtained through a dynamic filtration test apparatus to study the dust deposition patterns within filter media during the initial dust-loading stage,as well as the influence of dust cake evolution before and after pulse jet cleaning on filtration performance.The results show that for filter media with fine surface structures,the first filtration cycle can be divided into three stages:rapid resistance growth,transitional growth,and linear growth,corresponding respectively to the rapid blockage of surface pores,the approaching saturation of surface dust-holding capacity,and the uniform deposition after stabilization of the dust cake structure.Following pulse jet cleaning,part of the dust on the dust-facing surface is removed,while the internal dust redistributes with a slight increase in quantity.The needled felt filter media has a lot of dust residue in the superficial layer of the substrate because of the irregular airflow channels. Affected by the fine structure of the surface,the membrane-coated filter media has more full effect of pulsed air flow inside and more uniform dust redistribution,but the dust is easy to accumulate at the secondary interfaces.The differences in dust redistribution characteristics arising from structural variations in filter media directly affect residual resistance and air permeability.Membrane-coated filter media generally exhibit higher residual resistance,with air permeability recovering approximately 13% after pulse cleaning,while needled felt filter media shows comparatively small changes.These findings provide a reference for the optimized design of filter media,the rational formulation of cleaning strategies,and the energy-efficient and stable operation of dust removal systems.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期： 2025-12-25
* 基金项目： 国家自然科学基金项目(52304210)；辽宁省科学技术计划项目(2023-BSBA-105）；中央高校基本科研业务专项资金资助项目(N2301022，N25ZJL013)
作者简介： 胡晨钊，硕士研究生，主要研究方向为过滤材料结构与性能优化。
通信作者： 赫伟东，博士，助理教授，主要研究方向为颗粒物过滤技术、高新滤料、智能过滤装置、职业卫生工程。
更新日期/Last Update: 2026-04-29