Abstract
In order to solve the problem of dust accumulation at the joints of traditional filter materials and the reduction of filtration efficiency, weft knitting was selected to make the fabric cylindrical unwinding machine. The cylindrical filter material was formed by cylindrical needling machine in the later period. This type of novel seamless filter material was compared with the traditional one on the filtration performance and numerical simulation of filtration performance. The results show that when the warp and weft lining yarns in the seamless filter material were PTFE monofilaments containing tourmaline particles, the filtration efficiency was the optimal due to the presence of the surface static voltage. The filtration efficiency could greatly be improved by 7.24%. The relationship between the surface static voltage and distance was exponential. The filter material with electrostatic field on the surface increased the active filtration of electrostatic adsorption in addition to the passive filtration. This type of seamless filter material provided research and development ideas and theoretical guidance for the development and application of filter materials.
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