University students research and development bag filter efficiency of 99.5%

It is understood that bag filter is recognized as the most efficient dust collector at home and abroad, is to reduce the most effective PM2.5 equipment. However, the bag filter can only filter non-stick PM2.5 fine particles, there is no way for sticky particles. The Ningbo University PM2.5 this capture device, not only can efficiently filter non-stick fine particles, but also can filter sticky particles.

Li Peng, a team of five people told reporters, PM2.5 capture device is actually to improve the bag filter, the principle is not complicated, is to filter the exhaust before the bag surface covered with a layer of unique powder, due to The effect of powder physical filtration and powder adsorption can effectively isolate the sticky particles in the tail gas and change the situation that the original bag filter clogs the scrapped particles when they are sticky particles.

According to the experiment, when the bag is not pre-paved, the service life of the bag is only 420 minutes, while the trapping device with a layer of man-made powder filter aid is still intact after 30 cycles and the estimated service life is 2-3 years , The use of cost greatly reduced. At the same time from many experiments, with the addition of powder, the average sub-micron particle filtration can be as high as 99.5%.