摘要
为实现料浆均质化制备,借助三维建模软件建立涡轮式搅拌机模型,运用流体软件开展了不同桨叶结构对充填料浆制备的影响研究,揭示了料浆在不同桨叶结构扰动下的运动状态及分布情况,分析了不同桨叶结构下料浆的搅拌效果。结果表明:不同角度单桨叶搅拌桶内都会产生单个涡流,对形成均质化料浆有一定的扰动作用;与45°和90°桨叶相比,60°桨叶兼顾径向搅拌能力和轴向输送能力,不仅能有效促进团聚体的分离,还能促进料浆整体循环流动;上下正反斜60°复合搅拌叶片在搅拌过程中形成了独有的上下双涡流,有极强的剪切和轴向输送能力,相比于60°单桨叶,其搅拌效果显著增强,加快了料浆的均质化;虽然60°复合桨叶正常工作所需的功率是60°单桨叶的两倍,但其整体的搅拌效果明显更优。
In order to realize the homogeneous preparation of slurry,a turbine mixer model was established with the help of three-dimensional modeling software.The influence of different blade structures on the preparation of filling slurry was studied by using fluid software.The motion state and distribution of slurry under the disturbance of different blade structures were revealed,and the stirring effect of slurry under different blade structures was analyzed.The results show that a single vortex will be generated in the mixing barrel of single blade at different angles,which has a certain disturbance effect on the formation of homogeneous slurry.Compared with 45°and 90°blades,the 60°blade has both radial stirring capacity and axial conveying capacity,which can not only effectively promote the separation of aggregates,but also promote the overall circulation flow of slurry.In the process of mixing,the up and down positive and negative oblique 60°composite blade formed a unique up and down double vortex,which had strong shear and axial conveying capacity.Compared with the 60°single blade,the stirring effect of 60°composite blade is significantly enhanced,and the homogenization of the slurry is accelerated.Although the power required for the normal operation of the 60°composite blade is twice that of the 60°single blade,its overall stirring effect is significantly better.
作者
石勇
郑伯坤
段弘宇
黄腾龙
彭亮
赖伟
廖舟
SHI Yong;ZHENG Bokun;DUAN Hongyu;HUANG Tenglong;PENG Liang;LAI Wei;LIAO Zhou(Changsha Institute of Mining Research Co.,Ltd.,Changsha,Hunan 410012,China;Hunan Provincial Engineering Research Center for Comprehensive Utilization of Mine Solid Waste,Changsha,Hunan 410012,China;Hunan Nonferrous Metals Holding Group Co.,Ltd.,Changsha,Hunan 410015,China)
出处
《矿业研究与开发》
CAS
北大核心
2024年第6期149-155,共7页
Mining Research and Development
基金
国家重点研发计划项目(2022YFC2904003,2023YFC2907203)
湖南省高新技术产业科技创新引领计划项目(2022GK4057)。
关键词
桨叶复合结构
高效活化搅拌
搅拌特性
料浆均质化
数值模拟
Blade composite structure
Efficient activation stirring
Stirring characteristics
Homogeneous of slurry
Numerical simulation
作者简介
石勇(1996-),男,江西南昌人,硕士,助理工程师,主要从事矿山技术研究工作,E-mail:stoney3511_csu@126.com。
