| 摘要 |
In a method for reducing NOx emissions in a rotary kiln of a clinker production plant, fuel delivered by a burner of the rotary kiln is burnt along with primary air delivered by the burner, the primary air having a lower oxygen content and a higher temperature than the ambient air and being obtained by mixing ambient air with waste gas from the rotary kiln or from a heat exchanger that is connected to the rotary kiln and is used for preheating raw meal. The primary air is furthermore obtained by admixing hot air, in particular waste air from a clinker cooler. |
