目前,煤炭市场上块煤销售价格较高,块煤产量的提高能给企业带来很大的经济效益,所以提高块煤率是煤矿生产中的一个工作重点。在煤炭运输环节中,影响块煤破碎的主要因素是煤仓落差高。为了解决此问题,我矿采用煤仓螺旋溜槽进行卸载,使煤块沿螺旋溜槽下滑至仓底,减小了煤块下滑速 At present, the selling price of lump coal in the coal market is higher, and the increase of lump coal output can bring great economic benefits to the enterprise. Therefore, raising lump coal rate is a key task in coal mine production. In the coal transportation link, the main factor that affects the crushing of lump coal is the high drop of coal bunker. In order to solve this problem, I use the coal warehouse screw chute unloading, so that coal along the spiral chute slipped to the bottom, reducing the coal slip down