不锈钢265m^2烧结烟气氮氧化物减排生产实践  

PRODUCTION PRACTICE OF EMISSION REDUCTION OF NITROGEN OXIDES FROM 265 m2 SINTERING MACHINE IN STAINLESS OF TANGSTEEL COMPANY

作　　者：张海宾[1] Zhang Haibin(Tangshan Stainless Steel Co.,Ltd)

机构地区：[1]唐山不锈钢有限责任公司烧结车间,河北唐山063000

出　　处：《河南冶金》2020年第4期12-15,共4页Henan Metallurgy

摘　　要：为了适应新的氮氧化物浓度的排放标准,保证烧结机的正常生产,分析了氮氧化物在烧结过程中的形成机理,确定了烧结燃料是烟气中氮氧化物的主要来源。该厂从选择低氮的固体燃料和烧结机工艺控制两方面入手,减少氮元素的带入量,使脱硫入口烟气中氮氧化物浓度降低到了250 mg/m^3左右,出口烟气中氮氧化物浓度达到了超低排放要求。In order to adapt to the new emission standard of nitrogen oxide concentration and ensure the normal production of sintering machine,the formation mechanism of nitrogen oxide in the sintering process is analyzed,and it is determined that sintering fuel is the main source of nitrogen oxide in flue gas.Starting from two aspects of selecting low nitrogen solid fuel and sintering machine process control,the plant reduces the amount of nitrogen brought in,which reduces the concentration of nitrogen oxide in the flue gas at the desulfurization inlet to about 250 mg/m3,and the concentration of nitrogen oxide in the flue gas at the outlet to meet the ultra-low emission requirements.

关 键 词：氮氧化物 浓度 超低排放 

分 类 号：TF046.4[冶金工程—冶金物理化学]