Folded dust removal bag, as the name suggests, is a folded form of dust removal bag. By using this folding method, the traditional cylindrical dust removal bag can increase the area of the filter cloth, thereby increasing the filtering area of the bag filter, making the overall parameters of the dust collector larger, increasing the processing air volume of the dust collector, and processing more dust.
The pleated dust bag is generally made in the form of 8 pleats, and the corresponding skeleton installed with the pleated bag also needs to be specially customized to ensure that the skeleton can be smoothly installed in the bag and achieve the effect of supporting the pleated bag. Compared with traditional dust removal bags, the filtration area of pleated dust removal bags is doubled. One pleated dust removal bag can achieve the filtration area of two traditional dust removal bags. This pleated bag is used in dust collectors and occupies a smaller area under the same specifications.
The pleated dust bag is used in bag filters, and its principle of action is that the dust particles are intercepted by the inertia force when passing around the filter cloth fibers and colliding with the fibers. During the operation of the bag filter, dust adheres to the outer surface of the dust bag. When the dust containing gas passes through the dust collector, the dust is trapped on the outer surface of the dust bag, while the clean gas enters the inside of the bag through the filter material. The skeleton inside the dust removal bag is used to support the filter bag, prevent it from collapsing, and at the same time, it helps to remove and redistribute the dust cake.
The pleated dust removal bag is made of materials such as polyester and polypropylene. The polyester needle punched felt has good breathability, high porosity, high dust collection efficiency, and long service life. The temperature is generally between 80-120 ℃, and the instantaneous temperature can reach 150 ℃. It is moderately resistant to acid and alkali. The polypropylene needle punched felt dust removal bag has high acid and alkali resistance, can withstand strong acids and alkalis, has good recovery of highly corrosive dust, and has a long service life.
Folded dust removal bags are widely used in environments such as cement, chemical, coal, and pharmaceuticals to ensure dust recovery. Polyester and polypropylene are widely used materials in dust removal bags, which can be treated with film coating, singeing, calendering, or coating.