旋转喷雾干燥法脱硫优化数值模拟  

Numerical Simulation of Desulfurization Optimization by Spray Dryer Absorber

作　　者：赵毅[1] 贾里杨 刘侃[1] Zhao Yi;Jia Liyang;Liu Kan(Department of Environmental Science and Engineering,North China Electric Power University,Baoding 071003,China)

机构地区：[1]华北电力大学环境科学与工程系

出　　处：《山东化工》2019年第24期214-217,共4页Shandong Chemical Industry

基　　金：国家重点研发计划(2017YFC0210603)

摘　　要：本文以唐钢青龙炉料公司220万t/a链篦机-回转窑的旋转喷雾塔为模拟对象,利用计算流体力学(CFD)方法,对烟气流量,Ca(OH)2浓度等因素对脱硫效率的影响进行了数值模拟与分析。研究结果表明,随着烟气流量的增加,脱硫效率先下降,之后保持稳定;增加Ca(OH)2浓度能够提高脱硫效率,且对SO3的脱除效果很明显;旋转雾化器分开布置能够有效提高脱硫效率。This paper takes the rotating spray tower of 2.2 million t/a chain twisting machine-rotary kiln of Tangshan Qinglong Furnace Company as the simulation object,adopts Euler-Lagrangian method,the flow rate of smoke,Ca(OH)2 concentration,etc.The factors affect the desulfurization efficiency.The results show that with the increase of flue gas flow,the desulfurization efficiency decreases first and then remains stable.Increasing the concentration of Ca(OH)2 can improve the desulfurization efficiency,and the effect of removing SO3 is obvious.The rotary atomizer arrangement can effectively improve the desulfurization.effectiveness.

关 键 词：计算流体力学(CFD) 旋转喷雾干燥法(SDA) 球团烟气 半干法脱硫 

分 类 号：X511[环境科学与工程—环境工程]