煤灰黏度的预测研究  

Study on the prediction of coal ash viscosity

作　　者：刘硕[1] 周安宁[2] 杨伏生[2] 王昊[3] Liu Shuo;Zhou Anning;Yang Fusheng;Wang Hao(Shaanxi Institute of Technology,Xi’an 710300,China;Xi’an University of Science and Technology,Xi’an 710054,China;Shenhua Ningxia Coal Industry Group,Ningxia 750011,China)

机构地区：[1]陕西国防工业职业技术学院,陕西西安710300 [2]西安科技大学,陕西西安710054 [3]神华宁煤集团煤化工公司,宁夏银川750011

出　　处：《煤炭与化工》2017年第12期15-18,23,共5页Coal and Chemical Industry

基　　金：国家自然科学基金资助项目(51174279);神华宁煤集团有限责任公司科技创新项目(2014095)

摘　　要：采用高温旋转黏度计测定了麦垛山块煤(MK)的灰黏度,计算出精度最高的灰黏度预测模型为Urbain修正模型(离子熔体)。建立了灰组成、温度与灰黏度之间的关系式,并由此式得出了无量纲的煤灰黏温指数η=[|0.69·w(SiO_2)2.80·w(Al_2O_3)+12.78·w(Ti O_2)|]/[|0.65·w(CaO)+0.30·w(Fe_2O_3)+3.10·w(MgO)+2.04·w(K_2O)+0.72·w(SO_3)|]·K·T/100,用该指数判断煤样的黏温特性是否符合气化炉要求具有准确、便捷的特点。The ash viscosity of Maiduoshan lump coal(MK)was measured by high temperature rotary viscometer,and the most accurate prediction model of ash viscosity was calculated by FactSage thermodynamic software,which was Urbain modified model(ion melt).In addition,the relationship between ash composition,temperature and ash viscosity was established,and the dimensionless coal ash viscosity-temperature index was established,η=[|0.69·w(SiO2)2.80·w(Al2O3)+12.78·w(TiO2)|]/[|0.65·w(CaO)+0.30·w(Fe2O3)+3.10·w(MgO)+2.04·w(K2O)+0.72·w(SO3)|]·K·T/100.It is accurate and convenient to use the index to judge coal ash viscosity-temperature characteristics to meet the requirements of the gasifier.

关 键 词：煤灰黏度 预测模型 煤灰黏温指数 

分 类 号：TQ533[化学工程—煤化学工程]