Abstract Gieseler fluidity characterization is an important method to evaluate the fluidity of coal which highly influences the cohesive properties of coke formation. A concept of fluidity-temperature area SlgF instead of maximum fluidity lgMF was put forward to be used as the index of Gieseler fluidity characterization. Thirty-five coal samples were tested by Gieseler characterization and the sensitivity for identifying coal cohesiveness by SlgF and lgMF were compared. It was found that SlgF has a more sensitive resolution of coal fluidity than lgMF and it could give a correct result for judging coal cohesiveness in accordance with the comprehensive cohesiveness in most cases, especially for coals having almost same lgMF values.

中文翻译：

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Gieseler流动性表征评价炼焦煤粘结性的流动温度区指标

摘要 Gieseler 流动性表征是评价煤流动性的重要方法，对焦炭形成的内聚性影响很大。提出以流动性-温度区SlgF代替最大流动性lgMF的概念作为Gieseler流动性表征的指标。通过 Gieseler 表征测试了 35 个煤样，并比较了 SlgF 和 lgMF 确定煤粘结性的灵敏度。结果表明，SlgF对煤流动性的分辨比lgMF更灵敏，在大多数情况下，根据综合粘聚性判断煤的粘聚性，尤其是lgMF值几乎相同的煤，能给出正确的结果。