1. Shaanxi Institute of Technology, Xi’an 710300, China; 2. Xi’an University of Science and Technology, Xi’an 710054, China; 3. Shenhua Ningxia Coal Industry Group, Ningxia 750011, China
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.
刘 硕1，周安宁2，杨伏生2，王 昊3. 煤灰黏度的预测研究[J]. 煤炭与化工, 2017, 40(12): 15-18,23.
Liu Shuo1, Zhou Anning2, Yang Fusheng2, Wang Hao3. Study on the prediction of coal ash viscosity. CCI, 2017, 40(12): 15-18,23.
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