改性三乙醇胺助磨剂对粉煤灰水泥的助磨性能  

Effect of Modified Triethanolamine Grinding Aids on Grinding Performance of Fly Ash Cement

作　　者：赵计辉[1] 王栋民[1] 王学光[1] 廖述聪 林辉[1] 

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083

出　　处：《非金属矿》2015年第1期25-28,共4页Non-Metallic Mines

基　　金：高等学校博士学科点专项科研基金(20120023110011);中央高校基本科研业务费专项资金项目(2009KH09);中国矿业大学(北京)博士研究生拔尖创新人才培育基金(800015Z666)

摘　　要：有机助磨剂是提高水泥粉磨效率，促进水泥工业节能降耗的一个重要措施，为改善传统三乙醇胺助磨剂的助磨瓶颈和成本问题，采用冰醋酸对三乙醇胺进行酯化改性，研究了改性三乙醇胺（TEA-E）助磨剂对不同配比粉煤灰水泥的助磨效果，并分析了助磨机理。结果表明：TEA-E助磨剂对粉煤灰水泥的助磨效果优于三乙醇胺，可降低粉煤灰水泥休止角3°以上，使水泥3-32μm范围的颗粒含量提高率达10%以上，起到提高粉体流动性及颗粒均匀性，优化颗粒级配等显著作用。Organic grinding aids are important measure to improve grinding efifciency and promote energy-saving in cement industry. To improve the bottleneckes and cost problem, triethanolamine is modiifed by esteriifcation method with glacial acetic acid, and grinding effect of the modiifed triethanolamine （TEA-E） on different lfy ash cement is studied and its grinding mechanism is analyzed. The results show that the grinding effect of TEA-E on lfy ash cement is better than that of triethanolamine, the angle of repose of lfy ash cement is reduced by more than 3°, and the content of 3-32μm particles is improved by more than 10%. TEA-E plays a signiifcant effect of improving the powder angle of repose and particles uniformity and optimizing the particle size distribution.

关 键 词：粉煤灰水泥 助磨剂 改性三乙醇胺 粒径分布 

分 类 号：TQ172.463[化学工程—水泥工业] TQ172.715[化学工程—硅酸盐工业]