Can water-repellent and oil-resistant needle felt filter bag be used for liquid filtration?

There are many kinds of filter materials. Can water-repellent and oil-resistant needle felt filter bags be used for liquid filtration? The answer is no. Liquid filtration, as the name implies, is to filter out impurities in the liquid. If it is water and oil repellent, how to filter it? So the water and oil repellent filter bag can only be used for air filtration. Now let's talk about the performance of water and oil repellent filter bag.

During the operation of the bag filter, if the gas contains more water and oil and moisture absorption, it is easy to damp the dust, and water film is formed to increase the holdability, which will make the dust difficult. Especially for high temperature and high humidity gas, due to the cooling effect of the external gas, the condensation phenomenon will occur, and the dust collected will scale and block on the surface of the filter material, which will increase the operation resistance of the dust removal equipment and directly affect the normal operation of the dust removal equipment. The water-repellent and oil-resistant needled felt adopts a special surface post-treatment process, which greatly improves the anti-adhesion of the filter material and the easy peeling of dust, and can effectively prevent the adhesion and penetration of water and various oil dirt.

The needle felt filter bag is a non-woven filter bag. The surface is specially singed. The needle felt filter bag can resist acid and alkali, has high filtration efficiency and can withstand 80-120 ℃ temperature. It is suitable for the use of most liquid filtration and can effectively prevent the fiber from falling off and polluting the filtrate. The fluffy and uniform three-dimensional filter layer has extremely high capture capacity for solid and colloidal particles. The high-strength long fiber makes the filter bag's filtration efficiency stable and its service life longer.

The polyester needled felt water-repellent, oil-resistant and dust-removing bag can effectively prevent the adhesion and penetration of water and various oil pollutants. Compared with ordinary filter materials, it not only has water-repellent and oil-resistant characteristics, but also has anti-scaling and easy peeling properties for dust. For the dust entering the bag-type dust collector, which contains more moisture and oil as well as hygroscopic and deliquescent dust, water film may be formed on the dust surface to increase the adhesion.

Product name: water-repellent and oil-resistant needle felt

Material: polyester fiber polyester base cloth

Thickness: 1.8-2.0mm

Weight: 500-600gm2

Air permeability: 12-15m3m2. min

Meridional tension: 1100 (N5 × 20cm)

Latitudinal tension: 1300 (N5 × 20cm）

Radial elongation: 35%

Weft elongation: 50%

Working temperature: 130 ℃, instant 150 ℃

Post-treatment: singeing, calendering, water and oil repellent (Teflon coating)

For air dust containing more moisture and oil as well as hygroscopic and deliquescent dust, water film may be formed on the dust surface to increase the adhesion, which will help to capture dust, but will make it difficult to clean the dust, especially when the high-temperature gas is in a high humidity state, due to the cooling effect of the external gas, condensation will occur, which will not only make the captured dust scale on the surface of the filter material and block it, Moreover, it can increase the operation resistance of the dust removal equipment, which directly affects the normal operation of the dust removal equipment.