化工进展2017，Vol.36Issue(4)：1202-1208,7.DOI:10.16085/j.issn.1000-6613.2017.04.007
操作参数对水力喷射空气旋流器脱除细颗粒物的影响
Effect of operation parameters on removal efficiency of fine particles in a water-sparged aerocyclone
摘要
Abstract
With the rapid development of industry in China,mass of fine particulate matter is emitted to the air,which is a big threat to the environment and public health. In order to overcome the shortage of low efficiency of traditional wet dust collection devices,a new device of water-sparged aerocyclone (WSA)was used for removal of model PM2.5 sample of talcum powder with average particle size of 1.56μm. The effects of operation parameters of initial concentration of dust,liquid jet velocity,gas inlet velocity on the total removal efficiency(η)of dust were investigated. Besides, experimental data was then summarized and analyzed to obtain the relationship between operating parameters and the removal efficiency. Results showed that the highest removal efficiency of fine particulate matter with 74.15% of the PM2.5was over 93%. When the WSA was used to treat the dusty gas,it is particularly effective to the particulate matter whose diameter is bigger than 1.8μm,the removal efficiency can even reach to 100%. The removal efficiency increased with the increase of initial concentration of dust,liquid jet velocity and gas inlet velocity,which follows the formula of η=133.61×Reg0.026×Rel0.027×(cs/ρs)0.065. The formula was proved to be useful in forecasting the removal performance of dust of the WSA. This investigation could develop a new process in removing industrial fine particulate matter.关键词
捕集/多相流/气体旋流器/湿法除尘/模型Key words
capture/multiphase flow/gas cyclone/wet collection/model分类
化学化工引用本文复制引用
程治良,全学军,李硕,李瑞恒,徐飞..操作参数对水力喷射空气旋流器脱除细颗粒物的影响[J].化工进展,2017,36(4):1202-1208,7.基金项目
国家自然科学基金(21176273)、重庆市基础与前沿研究计划(cstc2015jcyjA20005)及重庆市教委科学技术研究项目(KJ1600927, KJ14000912). （21176273）
