Liberation characteristics of coal middlings comminuted by jaw crusher ...
WEBSep 1, 2013 · On the other hand, energy efficiency of jaw crusher is much higher than that of ball mill, which the energy efficiency is only 5–10% [26], [27]. So jaw crushers are the potential device for comminution process of coal middlings, while the retreatment potential of progeny should be further indied by the timedrelease analysis. 4 ...