Coal -fired power plant boiler system

The utility model discloses a coal -fired power plant boiler system, include: powder process system (1), boiler furnace (2), horizontal gas pass (3), afterbody flue (4) and SNCR deNOx systems (5), powder process system (1) with boiler furnace (2) are connected, and the buggy after will grinding is sent into boiler furnace (2), boiler furnace (2) with afterbody flue (4) are passed through horizontal gas pass (3) are connected, be provided with convection heating surface in horizontal gas pass (3), afterbody flue (4) are including first shaft flue (41) and the second shaft flue (42) that set up side by side, SNCR deNOx systems (5) with boiler furnace (2) are connected, be equipped with at least one SOFA layer in boiler furnace (2), every SOFA layer includes at least one SOFA nozzle. The utility model discloses can realize the effective control to nitrogen oxide's emission. 本实用新型公开了种燃煤电厂锅炉系统，包括：制粉系统(1)、锅炉炉膛(2)、水平烟道(3)、尾部烟道(4)和SNCR脱硝系统(5)；所述制粉系统(1)与所述锅炉炉膛(2)连接，将磨制后的煤粉送入所述锅炉炉膛(2)；所述锅炉炉膛(2)与所述尾部烟道(4)通过所述水平烟道(3)连接，所