The non-unity of coal mining coal types requires coal mines not to mix raw coal in separate storage, and in actual operation, it often occurs that the centralized control personnel can not intuitively monitor the separate storage bin of a certain type of coal, resulting in the phenomenon of raw coal mixing. In order to solve this problem, No.2 Mine of Pingdingshan Group was taken as example, the original centralized control was adopted to increase the raw coal storage fault warehouse protection procedures. Practice showed that the improved centralized control system put an end to the mis-storage of raw coal when stored in separate bunkers, with good application results.