CAJ | 학술논문

覆膜滤料是降低微细颗粒物排放，降低大气环境中PM2．5浓度源头的净化技术之一。对氟美斯（FMS ）针刺毡为基布覆膜滤料，进行了表面微观结构电镜扫描，同时，进行了这种滤料的阻力实验测试和分级效率测试。表面电镜扫描结果显示，覆膜呈微孔且直径为0．5μm左右的多层铰链结构。实验结果表明，覆膜滤料周期性清灰后阻力为1200 Pa ，万次老化实验后覆膜滤料阻力是1163．3 Pa；在过滤风速为1．4 m／min时，滤料对PM2．5的过滤效率高于99％。实验结果对使用覆膜滤料的布袋除尘器设计具有一定指导意义。
복막려료시강저미세과립물배방，강저대기배경중PM2．5농도원두적정화기술지일。대불미사（FMS ）침자전위기포복막려료，진행료표면미관결구전경소묘，동시，진행료저충려료적조력실험측시화분급효솔측시。표면전경소묘결과현시，복막정미공차직경위0．5μm좌우적다층교련결구。실험결과표명，복막려료주기성청회후조력위1200 Pa ，만차노화실험후복막려료조력시1163．3 Pa；재과려풍속위1．4 m／min시，려료대PM2．5적과려효솔고우99％。실험결과대사용복막려료적포대제진기설계구유일정지도의의。
Membrane filter is one of the sources purification technology for reducing the emissions of fine particle matter and lowering the concentration of the PM2 .5 in the atmosphere .In this paper ,the prepared FMS needle felts are characterized by SEM of surface microstructure and meanwhile the resistance test and classification efficiency test are conducted respectively . The surface SEM shows that membrane filer presents a multi-hinge structure with micro-porous ,which has the diameter of about 0 .5 μm .It is obvious that the resistance of the membrane filter is 1 200 Pa at periodic cleaning and it remains 1 163 .3 Pa after ten thousand times of aging experiments;the filtration efficiency for PM2 .5 is higher than 99% at the face velocity of 1 .4 m/min .The results have a certain practical significance for the design of the bag house with membrane filter .