What is the design of industrial electrostatic precipitator
The synergistic effect of wet desulfurization unit can be greatly improved because the average particle size of flue dust at the outlet of industrial electrostatic precipitator is larger than 3 micron. By optimizing the desulfurization tower and adjusting the layout of the demister and improving its performance, the concentration of droplets carried by the flue gas at the exit of the demister can reach or surpass the target of 20-40 mg/m gong.
By improving the design of spray layer, the uniformity of airflow distribution in the absorber tower is ensured, and the pressure at the inlet of each nozzle is uniform. Single tower or combined zone absorption technology was used to change the gas-liquid mass transfer equilibrium conditions and optimize slurry pH value, liquid-gas ratio, slurry atomization particle size, Oxygen-Sulfur ratio and other parameters to improve desulfurization efficiency. Optimizing the flue gas flow field in the tower can effectively reduce the liquid-gas ratio and energy consumption. Through the above measures, the SO2 removal efficiency of general wet desulfurization unit is not less than 98%, and the synergistic removal efficiency of flue gas and dust is more than 70%.
In order to meet the requirements of ultra-low emission, industrial electrostatic precipitator technology has been applied in many domestic power plants. The main function is to achieve efficient removal of smoke and dust, while achieving the cooperative removal of SO3. When the flue gas passes through the heat recoverer, the temperature of flue gas decreases below the acid dew point, SO3 condenses into sulfuric acid mist and adsorbs on the dust surface, which makes the dust property change greatly. It not only reduces the specific resistance of dust, but also increases the breakdown voltage and reduces the flue gas flow rate, thus improving the dust removal efficiency.www.icleairs.com