Research on the Characteristics of Particulate Matter in Coal-fired Power Plants
This article studied the particle size range of 0.03μm to 10.0μm by collecting particles from the inlet and outlet of electrostatic precipitators in coal-fired boilers.The research content mainly includes the concentration,particle size distribution,diffusion characteristics,as well as the penetration rate of particles through electrostatic precipitators and the elemental composition of particles.The experimental results showed that the particle size of PM10 exhibited a bimodal distribution.PM2.5 and PM1 accounted for a relatively large proportion of particulate matter emitted into the atmosphere by coal-fired boilers.When adding limestone adsorbent for desulfurization,in addition to the particles generated by coal combustion,limestone also produced new particles.The penetration rate of particulate matter through electrostatic precipitators varied with particle size,ranged from 0.01μm to 1μm.The electrostatic precipitator had poor collection effect on particles with a particle size less than 0.1μm.The distribution of each element in PM10 is also different.
Coal fired power plantsParticle concentrationParticle size distributionPenetration rateElement distribution
万方数据
维普
