Acid-resistant coated glass fiber filter bag

Our company's medium silica (modified) film-coated filter bags use high-quality medium silica fibers as raw materials and are woven into high-quality filter cloths. After pre-treatment and heat-setting processing, they have excellent physical and chemical indicators. The surface of the filter bag has been treated with PTEF impregnation and PTEF coating, which organically combines the characteristics of acid resistance and silica with PETF's temperature resistance, corrosion resistance, good flexibility, and easy cleaning. The service life and other properties of the filter bag are greatly improved. It is a very cost-effective filter material!

Glass fiber coated filter bags have been widely used in high-temperature bag filters with excellent results, especially in large-scale high-temperature bag filters. The glass fiber-coated filter material produced with this technology has high dust removal efficiency, low operating resistance, long service life, and no film shedding. It can work under the working conditions of 260oC for a long time (the instantaneous temperature can reach 300oC). All performances of the bag remain unchanged, the dust collection rate for dust below 5um can reach 100%, and the dust collection efficiency for fine dust below 1um can reach 99.5%. The service life of filter bags can reach more than 2 years.

Features of acid-resistant coated glass fiber filter bags:

(1) High filtering accuracy

The micropores on the surface of the medium silica (modified) coated filter bag are small and uniform (0.10-2.0um), which can separate all dust larger than the diameter of the micropores.

(2) Light and soft, easy to clean

The thickness of the filter material is about 0.8mm, and the dust is easy to peel off; the dust cleaning pressure is small, the cleaning frequency is less, the maintenance amount is reduced, and the operating cost is saved.

(3) High strength, low elongation, dimensional stability

The warp and weft strength of the medium silica (modified) coated filter bag is above 2300N/mm, and it will not shrink under high temperature.

(4) Outstanding temperature resistance

Medium silica (modified) film-coated filter bags can operate continuously from above the acid dew point to 260°C, and the instantaneous temperature resistance can reach 280°C.

(5) Oxidation resistance and corrosion resistance

The medium silica (modified) coated filter bag will not be oxidized by oxygen or nitride, and has outstanding corrosion resistance.

(6)Excellent folding resistance

The base material is woven with ultra-fine medium silica fiber to ensure the service life of the filter material.

(7) Water- and oil-repellent, suitable for working conditions with high moisture content

The hydrolysis resistance is very good, and the waterproof level is not less than 4.5.

Advantages of coated glass fiber filter bags:

The surface filtration is realized, and the dust emission is almost zero, which can meet the strict emission standards of various countries.

Excellent dust cake shedding performance, improve the ventilation of dust collection equipment, and reduce the pressure drop of dust collection equipment.

The service life of the filter bag is extended, the cleaning cycle and power consumption are reduced, and the maintenance cost of the dust collection equipment is saved.

Improve the filtration wind speed of dust collection equipment, reduce and reduce the use volume and investment cost of dust collection equipment.

Due to the low pressure drop of operation, the power consumption of dust collection equipment is reduced.

Reduce the total investment cost and operation cost of dust collection equipment, increase production volume and expand product profits.

Applying film-coated or glue-coated filter bags to industrial and mining applications can achieve ultra-low emissions of 5 mg.