工程科学学报2016，Vol.38Issue(12)：1688-1694,7.DOI:10.13374/j.issn2095-9389.2016.12.005
烧结用生石灰所含杂质对其消化性能的影响
Effects of impurities in lime used for iron ore sintering on its hydration characteristics
摘要
Abstract
The effects of SiO2,Al2O3 and MgO on the hydration of lime were investigated by isothermal calorimetry,and the results were validated by 5 types of lime used in the sintering plant.It is found that the total hydrating heat of lime has positive relationship with CaO content,and decreases with increasing SiO2,Al2O3 and MgO contents.The contents of SiO2,Al2O3 and MgO also have important effect on the hydrating speed of lime.When the mass fraction of SiO2 increases to 1％,the hydrating speed of lime dramatically decreases,and then slowly drops with increasing SiO2 content.A small amount of Al2O3 has no significant effect on the hydrating speed of lime,but when the mass fraction of Al2O3 is more than 2％,the hydrating speed of lime sharply decreases.With the increase of MgO content,the hydrating speed of lime significantly decreases.关键词
铁矿石烧结/生石灰/水合作用/杂质Key words
iron ore sintering/lime/hydration/impurities分类
矿业与冶金引用本文复制引用
张丽,吴胜利,张永忠,苏博,寇明银..烧结用生石灰所含杂质对其消化性能的影响[J].工程科学学报,2016,38(12):1688-1694,7.基金项目
国家自然科学基金资助项目(U1260202) （U1260202）
中央高校基本科研业务费资助项目(FRF-TP-15-065A1) （FRF-TP-15-065A1）
