Rotary kiln combustion control process for reducing generation of nitrogen oxides

The invention discloses a rotary kiln combustion control process for reducing the generation of nitrogen oxides, which comprises a main box body suitable for the process, an air exhaust assembly for reducing the generation of nitrogen oxides is arranged in the main box body, and a kiln body is arranged on the right side of the main box body; through rotation of the exhaust fan, flue gas in the left end of the kiln cavity passes through the annular air suction box, nitrogen oxide is reduced into harmless nitrogen and water through a reducing agent in the filter screen, the harmless nitrogen and water are discharged to the outside, and therefore air circulation in the kiln cavity is accelerated, and the retention time of the flue gas in a high-temperature area at the left end of the kiln cavity is shortened; the rotating speed of the exhaust fan can be automatically adjusted according to the temperature in the kiln cavity, the phenomenon that the calcining effect is affected due to temperature reduction caused