摘要
针对联合粉磨系统出磨P O42.5水泥标准稠度用水量较大的问题进行探讨,结果是:(1)熟料的易磨性变化会引起水泥颗粒级配变化,从而影响水泥标准稠度用水量;(2)上调入磨混合材水分,增加易磨性较好的混合材(石灰石或粉煤灰)掺加量以产生较多的1μm～10μm微粉,减少空隙填充水,可降低水泥浆体的用水量;(3)降低出磨水泥比表面积,拓宽45μm、80μm筛余含量,可优化水泥颗粒分布减少颗粒间隙填充水和表面吸附水;(4)严格控制进厂二水石膏结晶水及SO3含量,避免或减少混入半水石膏、硬石膏,当熟料用水量持续增大或外界气温上升时适当上调出磨水泥SO3控制指标;(5)选用助磨兼减水性能的助磨剂,既可改善物料粘聚又能适当降低水泥用水量。
The standard consistency of P.O42.5 cementproduced from combined grinding system has a problem ofgreat water consumption. The author offers systematicallythe ways to reduce water consumption for the standardconsistency by means of analyzing the particledistribution of clinker, admixture and cement products,adjusting the targets for processing quality control, as wellas considering the influencing factors of clinker sintering,admixtures, gypsum, sorts of grinding-aid, and processingparameters of quality control.
出处
《新世纪水泥导报》
CAS
2012年第5期18-23,1,共6页
Cement guide for new epoch
关键词
联合粉磨系统
用水量
降低
途径
Combined grinding system, Waterconsumption, Reduce, Ways
