Denitrification equipment removes nitrogen oxides (NOx) from flue gas using chemical or physical methods to reduce air pollution and meet environmental emission standards. Nitrogen oxides are one of the main pollutants generated during industrial production, posing serious threats to the environment and human health. Denitrification equipment is widely used in industries such as power, steel, chemicals, and cement, converting NOx into harmless nitrogen and water vapor through technologies such as selective catalytic reduction (SCR) or selective non-catalytic reduction (SNCR).