Coal Quality Evaluation Model Based on Interval AHP

The blended coal,prepared by mixing coal of different qualities to match the designed coal quality requirement for the boiler,is widely applied in power plants.In the process of coal blending,it is necessary to take the coal calorific value into account,as well as other qualities of coal.With a view to the systematic and practical coal management,all the coal factors except the calorific value are integrated into comprehensive index,and interval AHP is adopted to construct the model for evaluating the comprehensive coal qualities.Thereby the comprehensive quality index of each type of coal can be calculated in order to integrate with the calorific value index,which provides a new method for the coal digital management in power plants.