气相ClO_(2)氧化法脱硝在邯钢1#435m^(2)烧结机的应用实践  

Application Practice of Gaseous ClO_(2) Oxidation Denitration of the 1# 435m^(2) Sintering Machine in Hansteel Company

作　　者：谢春帅 王涛 代兵 李好泽 焦康 XIE Chun-shuai;WANG Tao;DAI Bing;LI Hao-ze;JIAO Kang(HBIS Group Hansteel Company,Handan Hebei 056015;Hansteel Design Institute of HBIS Group,Handan Hebei 056015;Zhongjing Environmental Technology Co.,Ltd.,Beijing 100176,China)

机构地区：[1]河钢集团邯钢公司,河北邯郸056015 [2]河钢集团邯钢设计院,河北邯郸056015 [3]中晶环境科技股份有限公司,北京100176

出　　处：《中国环保产业》2022年第7期30-34,共5页China Environmental Protection Industry

摘　　要：邯钢1#435m^(2)烧结机在原旋转喷雾干燥(SDA)烟气脱硫除尘工艺系统的基础上,通过增加离子发生器等装置,在保留原有烟气脱硫除尘功能基础上,增加了脱硝功能。通过近1年的生产实践,确定了利于脱硝的关键性参数与控制标准。运行实践证明,通过对关键性参数的控制,气相二氧化氯(ClO_(2))氧化法+SDA半干法脱硫脱硝工艺能够很好地融合并协同完成脱硫、脱硝和除尘的烟气净化任务,达到稳定超低排放的目标。Based on the original SDA(spray dryer absorber)flue gas desulfurization and dust removal process system,the 1#435m^(2)sintering machine in Hansteel Company added the denitration function by adding ion generator and other devices,while retaining the original flue gas desulfurization and dust removal function.After nearly a year of production practice,the key parameters and control standards for denitration are determined:The ratio of n(ClO_(2))/n(NO)is 0.8,the concentration of SO_(2)in flue gas is 900-1,300mg/m^(3),the content of CaO in quick lime is more than 90%,the slurry density is 1,060-1,100kg/m^(3),the outlet temperature of absorber is 88°C-93°C,and the injection cycle of bag filter is 0.3h.The operation practice has proved that by controlling the key parameters,the gaseous ClO_(2)oxidation+SDA desulphurization and denitration process can be well integrated,so as to complete the flue gas purification tasks such as desulfurization,denitration and dust removal in a coordinated manner,and achieve the goal of stabilizing ultra-low emissions.

关 键 词：气相ClO_(2) 脱硝 二氧化硫 浆液密度 温度 布袋除尘器 

分 类 号：X757[环境科学与工程—环境工程]