technology roadmap

1. For smoke and dust, technologies such as pulse bag filter, wet electrostatic precipitator, and high-frequency power supply are used to achieve dust removal efficiency and emission concentration not exceeding 10mg/m3;

2. Regarding sulfur dioxide, technologies such as increasing the uniform flow efficiency plate, improving the liquid gas ratio, enhancing the desulfurization efficiency loop, and implementing zone control are adopted to improve the wet desulfurization device, achieving desulfurization efficiency improvement with an emission concentration not exceeding 35 mg/m3;

3. For nitrogen oxides, technologies such as boiler low nitrogen combustion transformation and adding new catalysts to SCR denitrification devices are adopted to achieve denitrification efficiency, with emission concentrations not exceeding 50 mg/m3;

4. For mercury and its compounds, SCR modified catalyst technology can achieve a mercury oxidation rate of over 50%. After removal by an absorption tower, the emission concentration does not exceed 3 μ g/m3;

Desulfurization system:

Introduction to wet electrostatic precipitator:

Wet electric layout:

Boiler ultra-low emission case

Wet Electrostatic Precipitator

First level high-efficiency dust collector

Desulfurization tower+wet electrostatic precipitator