大峰露天煤矿下组煤应用露天采矿机开采的可行性

Feasibility of mining lower series coal by mining machine in Dafeng open-pit coal mine

大峰露天煤矿大峰采区下组煤是典型的薄煤层多层煤,其露天开采存在较大难度,采用传统的液压挖掘机选采回采率低、矸石混入率高、煤质差,露天采矿机不仅可以解决上述问题,同时适宜该矿火区无爆破作业的特点,是一项可行的工艺选择。

The lower series coal in Dafeng open-pit coal mine Dafeng mining is the typical thin seam and multilayer coal, which has difficulty in open-pit mining. Traditional hydraulic excavator mining has low recovery ratio, high gangue mixed rate and poor coal quality. Open-pit mining machine can not only solve the above problems, but also suit for the characteristics of problems not blasting operations in fire area, which is a feasible technology choice.