Polyester dust bag

Polyester dust bag is one of the important accessories of bag filter, and the cost of replacing the filter bag is the main maintenance cost of bag filter. Therefore, how to choose polyester dust bag is related to the operation status and cost of the dust collector.

Polyester dust bag is the main filter material in bag dust collectors. It uses non-woven needle punching technology to comb and lay polyester short fibers on a fine fiber cloth with staggered fibers and evenly distributed gaps, and then needle punched into felt. This filter material has high strength, strong elastic recovery, stable fabric size, high porosity, good air permeability, long service life, good dust removal effect, and mechanical properties and properties at room temperature (below 130 ℃). Due to its low cost, polyester needle punched felt dust bag is a cost-effective filtering medium at low temperatures.

Polyester dust removal bags not only have the advantages of high porosity, good breathability, dust collection, and long service life unique to ordinary felt materials, but also have excellent acid and alkali resistance due to their moderate temperature resistance, reaching up to 150 ℃ in an instant. Therefore, they are a widely used type of felt filter material.

Polyester dust bag can be repeatedly removed and cleaned, so it is more economical. Each thread is made by twisting together many fine threads of the same diameter, which are then woven and formed into a mesh according to the warp and weft density. For particles with a diameter greater than the mesh size during filtration, the filter cloth can trap them on the surface, while particles with a diameter smaller than the mesh size pass through the mesh and enter downstream. Therefore, the mesh filter bag achieves surface filtration, and the smooth surface is also easy to clean.

The production process of polyester dust removal bags is as follows: fiber loosening - combing - mesh laying - pre piercing - main piercing - felting - singeing - calendering - impregnation - PTEE (agent) drying - shaping - rolling - coiling.