In the production process of the chemical industry, toxic and harmful hazardous wastes will inevitably appear, and there are potentially flammable and explosive substances as well as corrosive and infectious radioactive substances, which not only cause great harm to the human body, but also have a great impact on the natural environment. , therefore reducing the risk of these harmful substances and conducting pollution-free treatment is the most important problem that needs to be solved in chemical engineering.
The purpose of the flue gas purification process is to ensure that the flue gas emissions meet the standard. Generally, the flue gas purification process requires the use of 7 types of purification systems, including: flue gas reheating and emission, wet acid removal system, low-temperature SCR, bag dust collector, dry Type reaction tower, semi-dry quench tower, waste heat utilization system (built-in SCNR). This technology can ensure that the emission values of various pollution factors, including smoke, acid gases, heavy metals and dioxins, meet the standards, thereby achieving pollution control indicators that meet relevant national standards.
Waste heat utilization system: Built-in SCNR: Selective non-catalytic reduction denitrification technology, which reduces nitrogen oxides (NOx) into nitrogen and water by injecting reducing agents such as ammonia into the flue gas, and the denitrification effect can reach about 40%.
Waste heat boiler: Utilizes the high-temperature flue gas generated by incineration to heat water and generate steam, which can be used for power generation or heating, reducing operating costs and energy consumption.
Auxiliary equipment: including superheater, economizer, etc., used to increase the temperature and pressure of steam and improve energy utilization efficiency.