金属纤维滤袋与PPS针刺滤袋性能及运行效益比较  

Comparison of the performance and operational benefits of metal fiber bag and pps needle-punched filter bag

作　　者：侯力强 张小庆 康彦 颜翠平[2] 秦文茜 HOU Liqiang;ZHANG Xiaoqing;KANG Yan;YAN Cuiping;QIN Wenqian(Xi'an Filter Metal Materials Co..Ltd.,Xi'an 710201,Shaanxi,China;School of Environment and Resource,Southwest Universily of Science and Technology,Mianyang 621010,Shaanxi,China)

机构地区：[1]西安菲尔特金属过滤材料股份有限公司,陕西西安710201 [2]西南科技大学环境与资源学院,陕西绵阳621010

出　　处：《上海纺织科技》2020年第11期60-64,共5页Shanghai Textile Science & Technology

摘　　要：为探究高温除尘用金属纤维滤袋与传统针刺滤袋在脉冲喷吹时压力分布、除尘性能及实际运行效益的差别,搭建了脉冲喷吹及除尘过滤实验平台,分别测试了两种滤袋在不同喷吹高度下侧壁压力峰值的大小和分布规律,不同过滤风速下排放浓度及运行阻力以及实际工况中运行经济效益指标。测试结果表明:沿着滤袋长度方向,金属纤维滤袋的侧壁峰值压力峰值逐步减小,到达底部后再次增大,清灰薄弱区位于滤袋中下部分;针刺滤袋的侧壁压力峰值在1.4 m位置附近达到最大值后再次减小,清灰薄弱区位于滤袋上部分。在实际运行中,金属纤维滤袋的耐高温、"低阻高效"的特点,使其可部分代替化纤滤袋,在余热回收、高温除尘、高风速除尘领域取得良好的经济效益。To investigate the difference of the injection pressure distribution,dust removal performance and operation benefit between the new type of high temperature dust removal filter bag and traditional PPS needle-punched filter bag,the pulse injection and dust removal test platform is established,the magnitude and distribution of the lateral pressure peaks under different injection height,the emission concentration and operating resistance under different filtering filtration velocity are tested for the two kinds of filter bag,and the operational benefits in actual condition are compared.The results show that along the length of the filter bag,the lateral peak pressure of the metal fiber filter bag gradually decreases and increases again when reaching the bottom,the weak area of dust removal is located in the lower part of the filter bag,while the peak pressure of the needle filter bag reaches a maximum value near the 1.4 m position and then decreases again,and the weak area of dust removal is located in the upper part of the filter bag.In actual operation,the metal fiber filter bag has the characteristic of high temperature resistance and"low resistance and high efficiency",which could partly replace the chemical fiber filter bag,achieving good economic benefits under the conditions of waste heat recovery,high temperature dust removal and high filtration velocity.

关 键 词：金属纤维滤袋 针刺滤袋 清灰性能 过滤 运行效益 

分 类 号：TS176.5[轻工技术与工程—纺织材料与纺织品设计]