| 摘要 |
Primary reduction of the formation of nitric oxide and simultaneous reduction/removal of nitrous oxide and ammonia in the exhaust fumes of a furnace during the fuel combustion comprises combusting the fuel in a furnace containing at least a primary oxygen gas flow hot bed (1), in a hot chamber (3) and an exhaust fume fire zone (6); further supplying a secondary gas containing oxygen into the exhaust fume fire zone, where the hot bed comprises multi-hot beds (P 1, P 2, P 3, P 4); and axially mixing the exhaust components from the multi-hot bed. Primary reduction of the formation of nitric oxide and simultaneous reduction/removal of nitrous oxide and ammonia in the exhaust fumes of a furnace during the fuel combustion (where the combustion takes place by at least two stage) comprises combusting the fuel in a furnace containing at least a primary oxygen gas flow hot bed (1), in a hot chamber (3) and an exhaust fume fire zone (6) for incompletely burnt exhaust fume components; further supplying a secondary gas containing oxygen into the exhaust fume fire zone, where the hot bed comprises multi-hot beds (P 1, P 2, P 3, P 4), through which the fuel passes individually to the primary gas, and heat value of the exhaust fume is decreased between the surface of the hot bed and exhaust fume fire zone; axially mixing the exhaust components from the individual multi-hot beds, by adding a water-gas mixture through one or more spouts above the surface of the hot bed and exhaust fume zone. An independent claim is included for a device for the above process. |
