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What Gas Can Cause Corrosion Of Dust Bag
- Oct 17, 2016 -

Dust bag the corrosion is often caused by three gas, we summarize these three gases can cause corrosion of the dust bag.

1, strong oxidants: such as PPS dust bag when working at 160 c, encountered when the oxygen content (>12%), a large number of PPS can attack of oxygen molecules in the s key and combines with it. Reaction results: PPS fiber into a dark and brittle, strength. Sometimes you will find that PPS fiber color bag surface exposed to the Sun will turn brown. If the long run not be processed, resulting in decreased strength, resulting in dust bag breakage due to choices. 21% of 79% nitrogen and oxygen in the air (volume). When the temperature is not high, nitrogen is very stable, but high temperatures will make the nitrogen molecule chain break and reacts with oxygen to form NO and NO2,NO without much thought, but the NO2 is a strong oxidizer and oxidation are mostly used to filter fibers. Oxidants are nitrogen oxides, hydrogen sulfide, ammonia, chlorine, etc. In process and equipment control reduces oxidation and corrosion.

2, acid gases: now more use during high temperature filter material, dominated by sulfide. If the high temperature flue gas containing more acidic gases, acid better dust bag are recommended. If using the dust bag, containing acidic gas corrosion inside the dust bag of fiber structure, final choices lead dust bag breakage. Signs of damage from the outside in. Lower temperatures can reduce corrosion of acid gas on the dust bag. Acid gas sulphur dioxide and sulphur trioxide, hydrogen sulfide, hydrogen chloride, hydrogen fluoride, and so on.

3, alkaline gases: now more conditions containing ammonia, ammonia. Class is damaged and acid corrosion, lower temperature reduces the alkaline corrosion of gas on the dust bag.