大型带式焙烧球团高硫、高氮烟气超净装置的设计与应用

Design and Application of Ultra-clean Device for High Sulfur and High-nitrogen Flue Gas of Large-scale Pelletizing of Belt Roaster

山东青岛邦拓400万吨/年带式焙烧球团烟气净化采用CFB脱硫+SCR脱硝干式超净工艺技术,在入口SO_(2)浓度超过4000 mg/Nm^(3),NO_(x)浓度超过600 mg/Nm^(3)的高硫、高氮工况下,实现了出口SO_(2)排放浓度小于20 mg/Nm^(3)、NO_(x)排放浓度小于35 mg/Nm^(3)、粉尘排放浓度小于5 mg/Nm^(3)的超低排放指标。此项目的成功应用可为大型带式焙烧球团烟气超低排放治理工艺选择提供更多借鉴和参考。

The flue gas purification of Shandong Qingdao Bangtuo 4 million tons/year pelletizing of belt roaster adopts CFB desulfurization+SCR denitration dry ultra-clean technology.Under the conditions of the entrance SO_(2) concentration is more than 4000 mg/Nm^(3),and NO_(x) concen-tration is more than 600 mg/Nm^(3),the export SO_(2) emission concentration is less than 20 mg/Nm^(3),NO_(x) emission concentration is less than 35 mg/Nm^(3),dust emission concentration is less than 5 mg/Nm^(3).The successful application of this project can provide more reference for the selection of large-scale pelletizing of belt roaster flue gas ultra-low emission process.