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    2.SHIPINYINLIAOGUOLVDAIDEXIJUNHANLIANG，BULIAOYIJILVDAICHENGPINZAISHENGCHANCHULAIDESHIHOUDOUHUIJINXINGZIWAIXIANDENGGEZHONGSHAJUN，LVDAIFUHEWEISHENGJI、YIYAOJIBIAOZHUN。

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    传统的滤料结构是采用面层、基布层和底层的三层夹心式结构。过滤方式多为深层过滤，实际工作中，粉尘颗粒能够进入滤料内部，堵塞纤维之间的孔隙，使除尘器的阻力上升，粉尘残留率高，需要频繁清灰。改进后我们队滤料进行梯度设计，我们设计的是在滤料的面层加入一定比例的 PPS 超细纤维， 由于单位面积内纤维的比表面积增大，滤袋厂家特别是纤维和纤维间的结合更加致密， 使得滤料的过滤精度大大提高，完全可以达到 20 毫克/立方米标准。

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