Abstract: Abstract: Based on the study of coal quality in Dingfu Geng Group, the proportion of coal blending was determined by using the complementary characteristics of Dingfu Geng coal and repeated experiments. Production for the selected raw coal high-ash fine gangue more features, through the optimization of crude coal recovery process and other measures to innovate the difficult selection of coal washing technology. To solve the problem of insufficient raw coal into the feed, so that enterprises into the benign development of efficient production track.