徐州工程学院学报（自然科学版）2024，Vol.39Issue(4)：68-74,7.
7500t/d水泥窑尾SCR脱硝反应器数值模拟及导流优化设计
Numerical Simulation and Inflow Optimal Design of 7 500 t/d Cement Kiln Tail SCR Denitrification Reactor
摘要
Abstract
In order to address the issues of significant catalyst deterioration,inadequate denitrification effectiveness and ammonia leakage exceeding 3 mg/kg in the SCR denitrification reactor of the kiln end flue gas of a 7 500 t/d cement clinker production line in a cement plant in Shanxi,this paper employed the Gambit software to construct a 1∶1 scale model of the denitrification reactor.The Fluent software was used to simulate the characteristics of the flow field distribution in the flue of the full-size SCR reactor,and an optimal scheme was proposed,which involved adding and adjusting two plates-a homogeneous plate to guide uniform flow and a deflector plate to guide diffusion flow-to the original design.This optimized scheme was then verified through engineering tests and was found to meet the industrial performance indexes.The relative standard deviation of the velocity distribution upstream of the first layer catalyst was optimized from 51.43%to 14.92%,while the average flue gas incidence angle upstream optimized from 20.17° to 9.85°,which had a lesser effect on the pressure loss of the system,thereby reducing the cost of denitrification of the flue gas from the tail end of the cement kiln and enhancing the efficiency of the flue gas denitrification.关键词
水泥窑/CFD数值模拟/导流板优化/脱硝反应器/催化技术Key words
cement kiln/CFD numerical simulation/deflector optimisation/denitrification reactor/catalytic technology分类
资源环境引用本文复制引用
蔺海艳,雷本喜..7500t/d水泥窑尾SCR脱硝反应器数值模拟及导流优化设计[J].徐州工程学院学报（自然科学版）,2024,39(4):68-74,7.基金项目
安徽省高等学校省级质量工程项目(hc2021jyxm003 （）
2022zygzts083) （）
安徽省高等学校科研项目(2023AH053237) （2023AH053237）
