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.
出处
《非金属矿》
CAS
CSCD
北大核心
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)
关键词
粉煤灰水泥
助磨剂
改性三乙醇胺
粒径分布
fly ash cement
grinding aids
modified triethanolamine
particle size distribution
