一、前言 西德煤炭工业使用滚筒采煤机和刨煤机的开采量大约各占总产量的一半。与刨削式开采相比,截割式开采的优点是,开采中硬和硬煤层的采煤效率较高,可选择一定的开采厚度;可开采起伏和构造变化的煤层;可由工作面掘进回采平巷;截深与机械化支架的步距一致;生产组织简单;设备利用率较高;可开采上层煤粘顶的厚煤层;支护滞后情况较少;便于煤的运输。与截割式开采相比,刨削式开采的优点是,采落煤的块煤率较高;采煤时粉尘较少;原煤中含矸率较 I. INTRODUCTION The exploitation of the drum shearer and plow in the West Germany coal industry each accounts for about half of the total output. Compared with the planing mining, cutting mining has the advantage of mining the hard and hard coal mining in the coal mining efficiency is higher, the choice of a mining thickness; mining undulating and structural changes in the coal seam; Pingxiang; Depth of cut and the same pace of mechanized scaffold; production and organization is simple; equipment utilization is high; the upper coal seam can be mined thick seam; support less lag; easy to transport coal. Compared with cutting mining, the advantages of planing mining is that lump coal lump coal mining is higher; coal dust less;