Flue gas denitrating device

The utility model discloses a flue gas denitrating device, its trompil of spouting on the ammonia pipe divides first trompil and second trompil, and the aperture of first trompil is greater than the second trompil, realizes the evenly distributed of ammonia in the flue gas, makes ammonia and flue gas misce bene, in addition, the elbow department that imports the flue sets up the guide plate for the air flow distribution of flue gas is even, and the comprehensive function has improved the denitration efficiency of flue gas in denitrification facility, and, scientifically increased the number ofholes who spouts the ammonia pipe, improved the flow area of dilutent tuber pipe for the loss of pressure who spouts the ammonia pipeline is little, has ensured whole deNOx systems's safe operation. 本实用新型公开了种烟气脱硝装置，其喷氨管上的开孔分第开孔和第二开孔，第开孔的孔径大于第二开孔，实现氨气在烟气中的均匀分布，使氨气与烟气混合均匀；另外，进口烟道的弯头处设置导流板，使得烟气的气流分布均匀，综合作用提高了烟气在脱硝装置内的脱硝效率；而且，科学地增加了喷氨管的开孔数量，提高了稀释风管的流通面积，使得喷氨管道的压力损失小，确保了整个脱硝系统的安全运行。