PPS+PTFE混纺针刺滤袋在燃煤电厂的应用分析
Application analysis of PPS+PTFE blended needled filter bags in coal-fired power plants
陈好 1陈建文 1郑智宏 1林蓝婷1
作者信息
- 1. 厦门中创环保科技股份有限公司,福建厦门 361101;福建省袋滤材料与技术重点实验室,福建厦门 361101;厦门市袋滤材料与技术重点实验室,福建厦门 361101
- 折叠
摘要
针对某燃煤电厂使用聚苯硫醚(PPS)滤袋不足一年时间即发生大面积破损的问题,制备面层不同PPS和聚四氟乙烯(PTFE)纤维质量比的PPS+PTFE混纺针刺滤袋,对其进行挂袋试验,并从面密度、透气性、拉伸性能、粉尘渗透情况、材质变化及微观形貌等方面分析使用前后PPS+PTFE混纺针刺滤袋的性能.根据试验数据进行PPS+PTFE混纺针刺滤袋使用寿命的预估分析,推算其剩余使用寿命.研究结果显示,制备的PPS+PTFE混纺针刺滤袋满足粉尘排放质量浓度长期低于10 mg/m3的要求;面层PPS和PTFE纤维质量比为50∶50时,制备的PPS+PTFE混纺针刺滤袋的整体使用寿命可达74个月.研究为燃煤电厂滤袋除尘器的超低排放及滤袋选型提供参考.
Abstract
In order to solve the problem that polyphenylene sulfide (PPS) filter bag was damaged in a large-scale within less than one year after it was used in a coal-fired power plant, PPS and polytetrafluoroethylene (PPS+PTFE) blended needled filter bags with different mass ratios of PPS to PTFE fiber were prepared, and the filter bags hanging test was carried out. The properties of PPS+PTFE blended needled filter bags before and after use were analyzed from the aspects of surface density, air permeability, tensile properties, dust penetration, changes in functional groups and micro-morphology. Based on the test data, the service life of PPS+PTFE blended needled filter bags was estimated and the remaining service life was calculated. The results showed that the prepared PPS+ PTFE blended needled filter bags could meet the requirement of dust emission mass concentration below 10 mg/m3 for a long period of time. It was estimated that the overall service life of PPS+PTFE blended needled filter bags with a 50∶50 mass ratio of PPS to PTFE fibers in the top layer could reach 74 months.The research provides reference for the ultra-low emission of filter bag dust collector and filter bag selection in coal-fired power plants.
关键词
聚苯硫醚(PPS)/聚四氟乙烯(PTFE)/混纺针刺滤袋/性能/寿命预估Key words
polyphenylene sulfide (PPS)/polytetrafluoroethylene (PTFE)/blended needled filter bag/property/life prediction引用本文复制引用
出版年
2024
NETL
NSTL
万方数据