Coking coal refining classification method based on coal rock and matrix strength

The invention relates to a coking coal refining and classifying method based on coal rock and matrix strength. The method comprises the following steps: measuring the coal rock composition of coking coal; placing the prepared sample in a dry distillation reactor for dry distillation reaction; performing crushing; a sample with the weight of M0 is taken and then placed in the I-type rotary drum to be subjected to a rotation experiment, and then a scorched particle sample with the size larger than 0.2 mm is screened and taken and marked as M1; the matrix strength Icb is equal to (M1/M0) * 100%; and refining and classifying the coking coal according to the vitrinite content V and the matrix strength Icb in the coal rock composition. According to the method, coking coal types with similar conventional coal quality indexes can be distinguished in a short time, and the coking coal is refined and classified, so that a reliable basis can be provided for coking coal quality evaluation and coal blending ...