Analysis Of Dust Movement In The Ray-Tube Discharge System

With the development of human society, it is the higher requirement of the living environment. However, a large amount of dust and smoke be produced in modern industrial production processes because of coal as the main energy. Right now, the ESP is the main technology and equipment for dust pollution control, its basic theory and practical application of technology has quite perfect, but ESP for the collection of PM2.5 has not yet ideal, therefore, this problem has become a key and difficult issue. The paper discusses the working principle of ESP, as well as the influencing factors of collection efficiency. Using the ray-tube discharge system in the laboratory simulation of the actual work of ESP, then collect the dust of different collection interval; furthermore, the collection dust be measured by Laser Particle Size Analyzer and the measuring results to be analyzed. Main results as follows:1. Analysis the movement of the total particle size dust in the discharge system, and discuss the particle size distribution of dust about the different voltage and different interval, the different voltage and same interval. It turn out that the different voltage, different collection interval have the selectivity for the dust of different particle size. And the small particle size dust collected first when the voltage is low, the high voltage against.2. Emphasis analyze the movement and particle size distribution in the collecting pole of PM2.5, the results indicate that the movement of fine dust is disorderly and unsystematic. In addition, the charging and movement can be easily influenced by ion wind and other factors. Simultaneously, by analyzing, the high voltage is good for the agglomeration of fine dust, thereby enhancing the effectiveness of the collection.