Abstract: Abstract: TBS, as one of the main equipment Slime Separation in High Slush coal sorting, there is its own insurmountable problems, combined with Liangbei coal cleaning plant coarse slime separation process, a detailed analysis of the cause TBS sorting the main reason for the poor results, and made a large diameter cyclone classifier used in conjunction with TBS, which can effectively improve the material conditions TBS, thereby reducing the ash concentrate TBS, TBS's efficient sorting.