Treatment of dust in flue gas

Thread Content

The most commonly used methods at present are electrostatic dust collection and bag dust collection. Electrostatic dust collectors have high efficiency, are easy to operate, and have a wide range of applications. However, they require high investment costs, consume a lot of energy, and have limited operating conditions (the dust collector has strict requirements regarding the specific resistance of the dust; the best dust collection performance is achieved when the specific resistance is between 105 and 1011 Ω·cm). With the continuous improvement of bag dust collection technology, its efficiency has increased significantly nowadays (with proper selection of filter fabric and structural design, the dust collection efficiency for particles larger than 5μm can reach over 99%). It is also gradually capable of handling corrosive and high-temperature gases. Coupled with its low initial investment cost and the ease of replacing filter bags, it is steadily gaining a larger share of the market. Please share your own opinions, as well as whether there are any newer and better devices or processes available.