钢铁企业脱硝系统中的新型节能技术  

New Energy Saving Technologies in Denitrification System of Steel Enterprises

作　　者：张鹏程 胡海洋 田颖 张凯 Zhang Peng-cheng;Hu Hai-yang;Tian Ying;Zhang Kai(Baotou Steel Group Energy Saving and Environmental Protection Technology Industry Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China;Beijing Yongbo Clean Technology Co.,Ltd.,Beijing 102200,China)

机构地区：[1]包钢集团节能环保科技产业有限公司,内蒙古包头014010 [2]北京永博洁净科技有限公司,北京102200

出　　处：《包钢科技》2024年第3期90-93,共4页Science & Technology of Baotou Steel

摘　　要：在脱硝过程中,由于脱硝反应温度要求较高,需要对烟气进行加热,此过程消耗较多的高炉煤气,产生大量的CO_(2)。为实现节能降碳,使用节能型内置式直燃炉代替传统加热炉,节能型内置式直燃炉通过引燃烟气中的CO释放热量加热烟气,减少高炉煤气消耗,降低碳排放,同时满足脱硝温度需求。经过使用对比,节能型内置式直燃炉可减少17.9%的高炉煤气用量,实现年减排CO_(2)35000 t以上,年节约费用达400万元以上,在满足脱硝反应的前提下,亦可满足钢铁企业节能降碳的需求。In the denitrification process,flue gas needs to be heated due to the temperature requirements of denitration reaction are high,more blast furnace gas is consumed so that a large amount of CO_(2)is generated.In order to achieve the energy conservation and carbon reduction,energy saving type built-in direct fired furnace is used instead of traditional heating furnace.The flue gas is heated with the heat released by igniting the CO in flue gas with energy saving type built-in direct fired furnace so that the consumption of blast furnace gas and carbon emission are reduced as well as temperature requirements of denitrification could be met.The consumption of blast furnace gas is reduced by 17.9%with energy saving type built-in direct fired furnace,annual CO_(2)emission reduction of over 35000 t is achieved and annual cost saving could reach over RMB 4 million yuan through applications and comparisons,which could meet the requirements of energy conservation and carbon reduction for steel enterprises on the premise of meeting requirements of denitrification reactions.

关 键 词：钢铁企业 碳减排 高炉煤气 直燃炉 节能 

分 类 号：X757[环境科学与工程—环境工程]