球磨和立磨矿渣粉粒度分布特性的比较  

Analysis on Character of Granulated Blast Furnace Slag Powder Ground by Vertical Mill and Ball Mill

作　　者：刘辉[1] 侯新凯[1] 徐品晶[1] 刘文欢[1] 段然 

机构地区：[1]西安建筑科技大学材料科学与工程学院,陕西西安710055

出　　处：《建筑材料学报》2008年第3期318-322,共5页Journal of Building Materials

摘　　要：就闭路球磨和立磨2种粉磨系统制备的矿渣粉基本特性进行了比较研究.结果表明:无论是立磨还是球磨矿渣粉,其粒度分布均符合Rosin-Rammler表达式,但是,球磨矿渣粉的粒度分布范围比立磨矿渣粉宽,均匀性较差.在粒度表征参数中,比表面积和中位径都可以很好表征2种矿渣粉的总体粗细程度.立磨矿渣粉的内摩擦角小于球磨矿渣粉,因此其流动性比较好.A comparison study has been made between the properties of blast-furnace slag powders（BFSP） ground by ball mill（BFSP-B） and vertical mill（BFSP-V）, respectively.The Blaine specific surface area of the powders ranges from 458 to 606 m^2/kg.The results indicate that the particle size distribution of BFSP is in accordance with Rosin-Rammler,the particle size distribution of BFSP-B is wider than that of BFSP-V.The general coarse-fine grade of the two kinds of ground slag powder can be accurately characterized with both specific surface area and median diameter（d50）.The internal friction angle of BFSP-V is less than that of BFSP-B,so it＇s fluidity is better.

关 键 词：矿渣粉 球磨 立磨 粒度分布 颗粒群表征 流动性 

分 类 号：TQ172.637[化学工程—水泥工业]