在有关极薄煤层机械化开采基础上,利用螺旋钻机采煤,实践证明是目前解决陕北三叠纪煤田3号极薄煤层机械化开采一条可行的技术途径。此方法采煤工作面设备投入小,劳动定员少,操作相对简单,安全性高,原煤含矸率低。但设备运行可靠性有待进一步提高。因此建议企业与国内先进的机械生产厂家合作,为陕北极薄煤层的开采找到一条经济性好、安全可靠、适宜推广的技术路径。 Based on the mechanized mining of ultra-thin coal seam, the use of auger rig mining has proved to be a feasible technical solution to the mechanized mining of the ultra-thin seam No.3 in Triassic coalfield in northern Shaanxi. This method of mining face equipment into a small, less work capacity, the operation is relatively simple, high safety, coal gangue low rate. However, equipment reliability needs to be further improved. Therefore, it is suggested that enterprises cooperate with domestic advanced machinery manufacturers to find a technical route that is economical, safe, reliable and suitable for the exploitation of the extremely thin coal seam in northern Shaanxi.