不同氧化物对宁东煤灰熔融特性影响的实验研究  

Experimental Study of the Influence Rule of Different Oxides on the Ningdong Coal Ash Melting Characteristics

作　　者：杨磊[1] 井云环[1] 罗春桃[1] 夏支文 马乐波 杨英[1] 

机构地区：[1]神华宁煤集团煤炭化学工业分公司,宁夏银川750411

出　　处：《煤化工》2016年第4期60-63,共4页Coal Chemical Industry

摘　　要：通过实验,研究探讨了不同氧化物对宁东煤灰熔融特性的影响规律。研究结果表明,煤灰熔融性温度随着CaO添加量的增加先降低、后升高;Fe_2O_3、Na_2O降低煤灰熔融特性温度的作用非常明显;添加Al_2O_3,可使煤灰熔融性温度持续升高。掌握了不同氧化物对煤灰熔融特性的影响规律,有助于扩大气化炉煤种适应范围。Experimental tests are performed to study the influence rule of the coal ash melting characteristics by adding different oxides. The results show that the coal ash melting temperature first decreases then increases with the increasing addition of CaO. Fe2O3 and Na2O have obvious effects on reducing the coal ash melting temperature and the coal ash melting temperature can increase continuously by adding Al2O3 . Knowing the influence rule of different oxides on the coal ash melting characteristics can extend the applicable coal types in the gasifier.

关 键 词：煤灰 灰熔融性温度 氧化物 影响 

分 类 号：TQ536.4[化学工程—煤化学工程]