GUO Erbao1，YU Zhongkai1，LIU Xingcheng2
(1 Advanced Technology Institute of Green Building Research of Anhui Province; Key Laboratory of Indoor Thermal and Humid Environment, Anhui Jianzhu University, Hefei 230601, China; 2.CISDI Shanghai Engineering Co., Ltd., Shanghai 200940, China)
Abstract: Aiming at the problem of primary flue gas purification of converter, nine kinds of bag filter materials were selected to explore and analyze the performance differences among filter materials by testing their physical and chemical properties.The results show that the longitudinal breaking strength of 1 751.3 N of glass fiber coated filter material is the best, and the zonal breaking strength of 1 642.6 N of flumex uncoated filter material is the best.PTFE filter material has good acid and alkali resistance with warp and weft fracture strength retention rate ≥97%.The temperature resistance of flumeisi filter material and P84 filter material is good that the retention rate of breaking strength is ≥100%, and the thermal dimensional stability is ≤1.5%.The pore diameter ≤2.76 μm accounted for 81.52% of the aramid membrane filter material, the filtration efficiency of fine particles capture from 0.25 μm to 3.00 μm is more than 80%, and the filtration resistance increase significantly after membrane treatment.PTFE emulsion impregnated filter material has the highest water-repellent grade of 5.After membrane treatment, the filter material has a certain degree of improvement of acid and alkali resistance, filtration efficiency and water repellent grade.
Keywords: ultra-low emission；bag filter material；pore size distribution；filtration performance；waterproof performance
中图分类号：X701 文献标志码：A
文章编号：1008-5548(2022)03-0086-10
DOI:10.13732/j.issn.1008-5548.2022.03.011
收稿日期： 2021-12-13， 修回日期：2022-03-14在线出版时间：2022-05-05。
基金项目：安徽建筑大学引进人才及博士启动基金项目，编号2018QD44；安徽省高校省级自然科学研究重点项目，编号KJ2020A0465；安徽省绿色建筑先进技术研究院开放课题，编号AHLJY-2020-02；上海市青年科技英才扬帆计划，编号21YF1460000。
第一作者简介：郭二宝(1980—)，男，副教授，博士，硕士生导师，研究方向为大气污染控制技术。E-mail: 263760999@qq.com。
通信作者简介：刘兴成(1989—)，男，工程师，博士，研究方向为工业通风与除尘。E-mail: clementlxc@163.com。
