利用三次风细粉再燃降低NO_x排放的几个关键问题分析  

ANALYSIS OF SEVERAL KEY ISSUES ON REDUCING NO_x EMISSION BY REBURNING TERTIARY AIR WITH FINELY-PULVERIZED COAL

作　　者：徐璋[1] 李戈[1] 潘维[1] 欧大武[1] 池作和[1] 周昊[1] 蒋啸[1] 岑可法[1] 

机构地区：[1]浙江大学,浙江杭州310027

出　　处：《热力发电》2003年第9期42-46,共5页Thermal Power Generation

摘　　要：分析了细粉再燃的影响因素及三次风再燃的特点 ,并在此基础上提出了三次风再燃的技术方案、细粉浓缩器的选择以及细粉再燃过量空气系数的分配。通过对几种细粉分离器的比较以及时某电厂拟采用方案的分析 ,较好地解决了三次风用于再燃所面临的几个问题 ,得到的结果有助于三次风再燃的设计。The influencing factors upon reburning finelypulverized coal and the features of reburning tertiary air have been analysed, and a technical scheme for reburning the tertiary air being put forward on the basis of said analysis. The concentrator of finely-pulverized coal has been selected, and the distribution of excess air coefficient for reburning the finely-pulverized coal being determined, solving comparatively well some faced problems to use tertiary air for reburning. The results obtained have practical guiding effect for reburning tertiary air design.

关 键 词：锅炉 细粉分离器 超细煤粉 三次风 低NOX排放 电厂 飞灰可燃物 

分 类 号：X773[环境科学与工程—环境工程]