Comprehensive judgment method for coal slagging characteristic based on judgment index

The invention discloses a comprehensive judgment method for coal slagging characteristic based on a judgment index, relates to the technical field of coal slagging analysis, and aims to solve the problems of low coal slagging prediction accuracy, poor resolution and difficulty in providing theoretical guidance for a coal-fired boiler in existing slagging index judgment. The method comprises the following steps: 1, measuring the deformation temperature in the melting characteristic of a to-be-measured coal sample ash; 2, calculating an alkali-acid ratio; 3, calculating the ash relative weight of the to-be-measured coal sample ash according to a formula; 4, testing the adhesion force of the ash slag, and defining the adhesion force as a purging grade index; and 5, constructing a slagging characteristic judgment index, and carrying out comprehensive slagging characteristic evaluation. The method is used for comprehensively judging the coal slagging characteristic. 一种基于判定指数的煤质结渣特性综合性判定方法。本发明涉及煤炭结渣分析技术领域，尤其涉及一种基于判