化工学报2024，Vol.75Issue(2)：584-592,9.DOI:10.11949/0438-1157.20231175
喷雾耦合降温强化旋风分离器脱除细颗粒物的研究
Research on spray coupled cooling to enhance the removal of fine particles by cyclone separator
摘要
Abstract
By coupling the spray in front of the condensing heat exchanger,atomization agglomeration and heterogeneous vapor condensation were combined to improve the removal effect of fine particles in the cyclone separator,which is used for the deep treatment of nearlysaturated wet flue gas after the wet dust collector.The particle removal characteristics were investigated through laboratory tests and flue gas bypass tests in a metal smelter.The laboratory results show that spray coupled cooling can significantly enhance the removal of particles by cyclone separators under typical conditions,and had better enhancement effect than spray or cooling alone.By increasing the spray volume and heat exchanger temperature drop,the removal efficiency of fine particles first increased and then tended to be stable,and the optimal removal effect was achieved when the temperature drops by 6℃and the atomization volume was 0.046 L/m3.The higher the flue gas temperature was,the closer the humidity was to saturation,and the higher the fine particle removal efficiency was.The industrial flue gas bypass tests prove that the system was suitable for nearlysaturated wet flue gas after wet dust removal,and had strong adaptability to fluctuating conditions.When the particle concentration at the inlet flue gas did not exceed 2000 mg/m3,the particle concentration at the outlet can be kept below 20 mg/m3,and the average removal efficiency was above 99.2%.关键词
喷雾/冷凝换热器/水汽相变/团聚/旋风分离器/细颗粒物Key words
spray/condensing heat exchanger/heterogeneous vapor condensation/agglomeration/cyclone separator/fine particles分类
资源环境引用本文复制引用
陶明清,慕明昊,程滕,王博..喷雾耦合降温强化旋风分离器脱除细颗粒物的研究[J].化工学报,2024,75(2):584-592,9.基金项目
甘肃省重点研发计划项目(22YF7FA018) （22YF7FA018）
甘肃省青年科技人才托举工程项目(GXH20210611-15) （GXH20210611-15）
