Comparison of electrostatic precipitators and bag filters

1, electrostatic precipitator Electrostatic precipitator dust gas is through a strong electric field, so that the dust particles are charged through the dust in its electrodes, positively / negatively charged particles were negative / positive electrode plate adsorption, thereby removing the dust in the gas. High efficiency electrostatic precipitator dust, but the dust collection efficiency than by the impact resistance of large, easily lead to instability in collection efficiency. After the 1990s, electrostatic precipitators, are widely used in thermal power generation, cement kilns and other high-temperature, gas opium, conditions more complex dust pollution governance. 2, dust bag Bag filter using fiber filter traps dust and gas in the solid particles form a dust cake filtration and further filtration of fine dust particles by filtering dust cake to achieve efficient dust removal purposes. Baghouse technology can stably achieve high collection efficiency, dust emissions can be achieved within 5mg / m3, and the ratio of the dust collection efficiency from dust impact resistance, and other characteristics. In general, a particle size of less than 10μm of dust (particulate matter can be inhaled) effects on human health larger baghouse for particulate matter with high separation efficiency. Baghouse at room temperature flue gas treatment (<120 ℃) in the range of application of pollution gradually expanded, with the further development of high temperature and pulse filter cleaning and other technologies, baghouse dust with excellent performance in high temperature processing, to get more and more widely used high concentrations of smoke control areas.