硅率和铝率对阿利特形成反应率的影响

Effects of SM and IM on the Reaction Rate of Alite Formation

通过测定熟料的烧失量和游离氧化钙质量分数，利用金斯特林格方程计算熟料的形成反应率。结合熟料烧成过程中液相量的计算，分析不同温度下熟料硅率和铝率对阿利特形成的影响。结果表明：硅率在2．1～2．5、铝率在1．2—2．1范围内，熟料率值对阿利特形成有很大影响。硅率一定，随铝率升高，液相量变化不大，液相黏度变大，熟料易烧性较差，反应率降低；同样，铝率一定，随硅率升高，熟料的液相量变小，熟料易烧性变差，反应率降低。煅烧温度1400、1450、1500℃，随温度升高，液相量增多，易烧性变好，反应率增大。

The effects of silica modulus（SM） and alumina modulus（IM） on the alite formation at different burning temperatures were investigated by measuring the content of free lime（f-CaO） and the loss on ignition of clinker,and calculating the reaction rate with Gentling equation and liquid phase content of clinker.The results show that SM and IM of clinker have great influence on the formation of alite when SM lies in the range of 2.1 to 2.5 and IM is from 1.2 to 2.1.When the SM keeps constant,the content of liquid phase in the clinker at high temperatures changes little,while the viscosity of the liquid phase increases with the increase of IM so that the burnability of clinker become poor and the reaction rate of alite formation decreases.Similar results are obtained for constant IM.When burned at 1 400 ℃,1 450 ℃ and 1 500 ℃,with temperature increase,the liquid phase content of clinker and the reaction rate of alite increase,consequently,the burnability of clinker is improved.