Abstract:

This paper studies quality indices of coking coal,such as Audibert-Arnu dilatation,caking property,value Y of the maximum thickness of gelatinous layer and volatile,etc.It also analyzes the correlation of the Audibert-Arnu dilatation of diversified coal kinds and the above-mentioned indices.The result shows that the Audibert-Arnu dilatation varies with the degree of metamorphism of coking coal,which will give directive guidance for coal blending.