Primary reference to the "Hazardous Waste Incineration Pollution Control Standard" issued by the Ministry of Ecology and Environment.GB 18484-2020Complies with national standards and local provincial/municipal standards, meeting local emission regulations.
Regenerated flue gas primarily contains pollutants such as dust and acidic components.SO2、NO2、HCl、HF）、CODioxins and similar substances. The flue gas purification system completes the cooling, de-acidification, and dust removal of combustion flue gas, and requires control of harmful substances such as dioxins.
Exhaust treatment system, mainly including incinerator, secondary combustion chamber,SNCRDenitrification system, waste heat boiler, rapid cooling tower, activated carbon injection tower, dry desulfurization tower, bag dust collector, fan, wet desulfurization tower, activated carbon adsorption tower, flue gas heater, chimney, etc., the flue gas purification process is as follows: Firstly, the regenerative flue gas after combustion in the secondary combustion chamber1100At a temperature of ℃SNCR Post denitrification, heat is recovered through a waste heat boiler to reduce flue gas temperature.550°C, then proceed to the rapid cooling tower, utilizing recycled water for atomization and rapid cooling to ensure that the temperature is550℃~200Temperature range of ℃1 Instantly cooling within seconds, it effectively prevents the regeneration of dioxins, and then the烟气 enters the dry desulfurization tower, where it is sprayed with lime and powdered activated carbon as absorbents. The absorbents deposit on the bags of the bag dust collector, forming a filter cake, allowing the deposited absorbents to continue absorbing gaseous pollutants and dioxins from the flue gas, achieving the objectives of desulfurization and removing dioxins. The absorbents deposit on the bags of the bag dust collector, forming a filter cake, to continue absorbing gaseous pollutants from the flue gas. After being dusted by the bag dust collector, the flue gas is drawn into the wet desulfurization tower by a blower, where it undergoes further desulfurization treatment by spraying with alkaline solution. After the desulfurization process is complete, the flue gas enters a mist eliminator for water-gas separation, then it passes through an activated carbon adsorption box to further adsorb and remove any remaining trace harmful components. Finally, the exhaust gas is heated to120After de-dusting, the smoke enters the exhaust stack and is released into the atmosphere, with the entire smoke flow under negative pressure. The smoke collection method is rigidly connected, and the collection efficiency is100％。
The second chamber, desulfurization and denitrification, rapid cooling, and dust removal are all carried out in accordance with national or local industry standards to ensure quality completion.
