基于风选过程的立磨壳体结构对磨内流场影响研究  

Study on the influence of vertical mill shell structure on the flow field in the mill based on the air separation process

作　　者：张虓 韩玉维 Zhang Xiao;Han Yuwei(Tangshan Jidong Equipment Engineering Co.,Ltd,Tangshan 063200;Hebei Cement Equipment Technology Innovation Center,Tangshan 063200;Beijing Building Materials Science Research Institute Co.,Ltd,Beijing 100024)

机构地区：[1]唐山冀东装备工程股份有限公司,河北唐山063200 [2]河北省水泥装备技术创新中心,河北唐山063200 [3]北京建筑材料科学研究总院有限公司,北京100024

出　　处：《新世纪水泥导报》2024年第5期33-35,39,I0001,共5页Cement guide for new epoch

摘　　要：为了研究立磨壳体结构对磨内流场的影响,分别设计立磨模型1以及选粉机下部壳体高度提高一倍和直径增大10%的立磨模型2,将立磨结构简化并抽壳,建立立磨流体区域模型。研究表明:改变立磨选粉机下部壳体高度和直径,实现选粉区域内横截面积增大,为初选粉提供了更大的空间,物料颗粒进入壳体区域后可实现充分选粉,同时选粉机壳体内涡流减小,能有效降低立磨能耗。In order to study the influence of the vertical mill shell structure on the internal flow field of the mill,the vertical mill model 1 and the vertical mill model 2 with the height of the lower shell of the separator doubled and the diameter increased by 10%were designed respectively.The vertical mill structure was simplified and the shell was extracted to establish the vertical mill fluid area model.The research shows that changing the height and diameter of the lower shell of the vertical mill separator can increase the cross-sectional area in the powder selection area and provide more space for the primary powder.After the material particles enter the shell area,the full powder selection can be realized.At the same time,the vortex in the separator shell is reduced,which can effectively reduce the energy consumption of the vertical mill.

关 键 词：立磨 壳体结构 选粉 流场 

分 类 号：TQ172.632.5[化学工程—水泥工业]