基于海岛纤维的新型滤料实验研究

研发基于超细纤维的滤料是控制PM2.5的主要技术方向之一.采用国家标准建议的实验装置,对新型超细海岛纤维滤料的过滤性能进行综合研究,得出了滤料的过滤效率、残余阻力、清灰周期等参数,并与常规针刺毡滤料和覆膜滤料对比.结果表明:海岛纤维滤料对PM2.5的计数效率为94.9%,远高于常规针刺毡滤料,与覆膜滤料相当;动态过滤过程的残余阻力低于覆膜滤料,残余阻力上升缓慢,清灰周期更长,有利于延长滤料的寿命,节约成本.

Experimental Study on the New Filter Made from Sea-Island Fibers

Developing superfine fiber filter is one of the main technical methods to control PM2.5. An experimental setup was used according to the national standards, and the filtration performance of sea-island-fiber filters was studied comprehensively.Such parameters as the filter efficiency of filter material, the residual resistance and the ash cleaning cycle were obtained, and a comparison was made with the traditional needle felt filters and membrane filters. The results showed that the counting efficiency of sea-island-fiber filters for PM2.5 is 94.9%, which is far higher than that of the traditional filters and similar to that of the membrane filters; meanwhile, the residual resistance of the dynamic filtration process is lower than that of the membrane filters, the residual resistance increases slowly, and the ash cleaning cycle becomes longer, which is conducive to prolonging the filterlife and saving cost.