What filter bags is suitable for asphalt mixing stations for dust/fume collection?

For keeping the road building works continuous, the asphalt temperature always kept at a higher side, so how to choose the filter bag for the asphalt concrete mixer is very crucial.

As usual, when the temperature of dust air from the asphalt concrete mixer is more than 120 degrees C, we will suggest our clients to choose the aramid filter bags (made of Nomex needle felt) so as to guarantee the dust collector with a perfect performance and can work continuously for a long time.

However, the building materials inserted into the mixer in combination with asphalt are various, which makes the content of the dust air is quite complex, as usual, the dust air content will include asphalt, coke tar, river sand, stone power and so on which is quite sticky and also include much higher the moisture content, so when the temperature lower some or the station stop to work, the filter bags may be blocked due to the dew problem.

To solve this problem, Zonel Filtech developed the aramid (Nomex) filter cloth for filter bags with WOR finish treatment so as to make the aramid filter bags from Zonel Filtech with a wonderful performance and long service life in asphalt mixing station for dust collection. The WOR will make the filter cloth with a micro membrane on the surface of the material, and make the surface of the filter bags is repellent from the liquid so can solve the problem perfectly.

Relevant specifications for the Nomex needle felt for the filter bags production:
Material: aramid (Nomex) fiber, supported with aramid (Nomex) scrim/fabric.
Weight: 350~650g/sq.m
Operation Temperature: Continues: ≤204℃; Peaks: 220℃

Any questions or help needed on dust filter bags for the asphalt mixing station/Asphalt plant, welcome to contact ZONEL FILTECH!