铁尾矿来源对其易磨性及活性的影响  

Effect of Iron Tailings Regions on the Grindability and Activity

作　　者：陈梦义 周绍豪 李北星[3] 王薇 

机构地区：[1]中交武汉港湾工程设计研究院有限公司,武汉430040 [2]海工结构新材料及维护加固技术湖北省重点实验室,武汉430040 [3]武汉理工大学硅酸盐建筑材料国家重点实验室,武汉430070

出　　处：《硅酸盐通报》2016年第4期1265-1269,共5页Bulletin of the Chinese Ceramic Society

基　　金：国家高技术研究发展计划(863计划)课题(2012AA062405)

摘　　要：通过粉磨时间、强度测定和活性指数指标研究了迁安和密云两种不同来源铁尾矿粉磨特性及其活性差异,并通过活性Si^(4+)和Al^(3+)溶出量及孔结构和SEM测试对其活性差异进行了分析。试验结果表明:不同来源铁尾矿因其化学成分及组成的矿物差异,使其易磨性、力学性能及活性均有差异。密云铁尾矿的易磨性显著高于迁安铁尾矿,且其活性Si^(4+)和Al^(3+)溶出量高于迁安铁尾矿,从而使其活性、力学性能及孔结构分布均优于迁安铁尾矿。The grinding time,strength test and activity index were used to study the differences of grinding characteristics and activity of iron tailings from two different regions（ Qian＇an and Miyun）,and the activity difference was analyzed by the elution amount of activity Si-（4＋）and Al（3＋） as well as pore structure and SEM test. The results show that the differences of chemical and mineral composition existing in iron tailings from different regions lead to great differences of their grinding energy,mechanical properties and activity. The grindability of Miyun iron tailings is significantly better than Qian ＇an iron tailings. Moreover,with a higher elution amount of activity Si（4＋） and Al（3＋）,the activity,mechanical properties and pore structure of Miyun iron tailings are also superior to Qian＇an iron tailings.

关 键 词：铁尾矿 活性指数 活性Si4+和Al3+溶出量 孔结构 

分 类 号：TQ175[化学工程—硅酸盐工业]