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一、前言 碱对生产过程的不利影响主要在于阻碍水泥熟料矿物的形成,增加熟料中游离石灰的含量,破坏窰衬,生成硫碱圈增加操作困难。特别是碱还会破坏旋风预热器的顺利工作。 碱对水泥的性能也有显著的影响。W.Lerch发现当水泥中碱含量较多时将加速凝结,必须多加石膏才能缓凝。发现水泥的需水量随着含碱矿物KC_(23)S_(12)的含量增加而增加。K.M.Alexander和C.E.S.Davis较详细地研究了碱对硅酸盐水泥强度的影响。发现随着碱含量的增
I. INTRODUCTION The adverse effects of alkali on the production process mainly lie in hindering the formation of cement clinker minerals, increasing the content of free lime in the clinker, destroying the lining of the kiln, and generating sulfur-alkali rings to increase the operational difficulties. In particular, the alkali will also destroy the smooth work of the cyclone preheater. Alkali also has a significant effect on the performance of the cement. W.Lerch found that when the alkali content in the cement is high, it will accelerate the condensation, and more gypsum must be added to retard the setting. It is found that the water demand of cement increases with the content of KC_(23)S_(12) containing alkali minerals. K.M. Alexander and C.E.S. Davis studied in more detail the effect of alkali on the strength of Portland cement. Found with increasing alkali content