摘要
选用三种不同成分的高温灰，按不同比例进行混合，测定其熔融特性温度，并利用Ｘ射线衍射分析法对混合灰样加热过程中矿物质行为进行了研究。结果表明，混煤煤灰熔融特性温度与混合比不成线性规律变化。高温作用下混合灰样的矿物质组成与ＣａＯＡｌ２Ｏ３ＳｉＯ２三元系统相图中对应组分点处的矿物质组成基本一致，混煤煤灰熔融特性温度偏低，矿物质间存在低温共熔作用。
In this paper, blended ash samples were prepared by mixing high temperature derived ashes from three coals in different ratios Fusion temperatures of the blended ashes and raw ashes were measured, and behavior of mineral matter in the blended ash during heating were observed by XRD The fusion temperature of the blended ash is not in linear relation with the ash mixing ratio, and the minerals in the blended ash are similar to those in the phase diagrams of the ternary systems CaOAl 2O 3SiO 2 The fusion temperature of the blended ash is lower than that of raw ash due to low temperature melting caused by the interaction of minerals
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
1997年第5期400-403,共4页
Journal of Fuel Chemistry and Technology
基金
国家自然科学基金
煤燃烧国家重点实验室开放基金
