| 摘要 |
An integrated low NOx tangential firing system (12) that is particularly suited for use with pulverized solid fuel-fired furnaces (10), and a method of operating a pulverized solid fuel-fired furnace (10) equipped with an integrated low NOx tangential firing system (12). The integrated low NOx tangential firing system (12) when so employed with a pulverized solid fuel-fired furnace (10) is capable of limiting NOx emissions therefrom to less than 0.15 lb./10 6 BTU, while yet maintaining carbon-in-flyash to less than 5% and CO emissions to less than 50 ppm. The integrated low NOx tangential firing system (12) includes pulverized solid fuel supply means (62), flame attachment pulverized solid fuel nozzle tips (60), concentric firing nozzles, close-coupled overfire air (98,100), and multi-staged separate overfire air (104,106). |
