Abstract:

The coal blending test was conducted by the orthogonal design method, the correlation between the blending ratio of different kinds of coals and coke strength was studied. By means of orthogonal design method, the number of test could be greatly reduced, M40, M10 obtained from test, the coke size of bigger than 40mm and 25mm were analyzed by statistics, the optimal coal blending ratio was selected as: weakly caking coal 0, lean coal 25%, fat coal 18%, coke fine 3%, coking coal 54%.