气固两相流在转运站系统除尘中的应用  

Application of gas-solid two-phase flow in dust removal field of transfer point system

作　　者：蒋权[1] 李小博[1] 付衡业 孟文俊[1] 

机构地区：[1]太原科技大学机械工程学院,太原030024

出　　处：《环境工程学报》2015年第2期830-834,共5页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(51075289);国家自然科学基金国际(地区)合作与交流资助项目(51110105011)

摘　　要：为改善转运站点的作业环境,以转运站部分结构为模拟对象,根据实体结构模型建立流场模型,采用realizable k-epsilon气相湍流模型及拉格朗日颗粒轨道模型对结构内的两相流运动情况进行了数值模拟,得到了流体相的压力分布和速度分布以及固相的粉尘颗粒轨迹,讨论了导料槽中挡帘对流场的影响。结果表明,挡帘对导料槽中流场特征影响明显,在配置了挡帘的导料槽中,流场压力分布更有序,空气流动更集中,可产生一定的回流气体来降低来流气体的速度,且会在内部形成局部高速区域。In order to improve the working environment at transfer point,taking part of transfer point structure as simulation object,flow model was established according to the entity model.Taking realizeable k-epsilon turbulence model as gas model,and Lagrange particle tracing method for solid model,flow field numerical simulation of the object was completed.The result shows that the baffle has an obvious impact on the features of flow field in the guide chute,and the flow field pressure distribution is more orderly,the air flow is more concentrated.The flow speed of the gas can be reduced by gas back streaming,and local area at a high speed can be generated in the guide chute.

关 键 词：转运站 导料槽 气固两相流 除尘 CFD仿真 

分 类 号：X701.2[环境科学与工程—环境工程]