一种耐腐蚀耐冲刷高精度复合滤料的性能探究及应用  

Research and application of a high-precision composite filter material with corrosion and erosion resistance

作　　者：徐彪 Xu Biao(Jiangsu Aokai Environmental Technology Co.,Ltd.,Jingjiang 214500,Jiangsu,China)

机构地区：[1]江苏奥凯环境技术有限公司,江苏靖江214500

出　　处：《产业用纺织品》2024年第10期46-51,53,共7页Technical Textiles

摘　　要：针对钢铁焦化超低排放改造过程中常规玻纤复合毡或聚四氟乙烯(PTFE)针刺毡覆膜产品大多存在使用寿命短、不耐粉尘冲刷、粉尘排放不达标等问题,结合现场工况特点,开发出一种耐腐蚀耐冲刷高精度复合滤料。测试并分析该高精度复合滤料的物理性能、耐温性能、耐磨性能、耐化学腐蚀性和动态过滤性能。研究结果显示,高精度复合滤料能够长期耐受230℃及以上高温,其瞬间耐温值达260℃,耐温、耐化学腐蚀性能与常规PTFE针刺毡覆膜滤料接近;高精度复合滤料的耐磨性及高风速条件下的VDI过滤性能均优于常规PTFE针刺毡覆膜滤料,在工况应用下,能够实现超低排放和稳定运行。In response to the short service life,poor resistance to dust erosion,and non-compliance with dust emission standards of conventional glass fiber composite felt or polytetrafluorovinyl(PTFE)needle-punched felt coated products during the ultra-low emission transformation of iron and steel coking,a high-precision composite filter material with corrosion and erosion resistance was developed based on the characteristics of the on-site working conditions.The physical properties,temperature resistance,wear resistance,chemical corrosion resistance,and dynamic filtration performance of the high-precision composite filter material were tested and analyzed.The research results show that the high-precision composite filter material can withstand the high temperature of 230℃or above for a long time,with a short-term service temperature of 260℃.Its temperature resistance and chemical corrosion resistance are close to those of conventional PTFE needle-punched felt coated filter material.The wear resistance and VDI filtration performance of high-precision composite filter material under high wind speed conditions are better than those of conventional PTFE needle-punched felt coated filter material.Under working conditions,it can achieve ultra-low emission and stable operation.

关 键 词：高精度复合滤料 耐腐蚀 耐冲刷 聚四氟乙烯(PTFE)针刺毡 动态过滤性能 钢铁焦化 

分 类 号：TS176[轻工技术与工程—纺织材料与纺织品设计]