公开(公告)号：US4350392A

公开(公告)日：1982-09-21

申请号：US723814

申请日：1976-09-16

Applicant: Heinz W. Wild

Inventor： Heinz W. Wild

IPC: B65F3/22 ,  B65G33/08 ,  B65G33/32 ,  E21C20060101 ,  E21C35/14 ,  E21C35/20 ,  E21C37/12 ,  E21C41/18 ,  E21F13/00 ,  E21F13/06 ,  F42D3/04

CPC classification number: E21C41/18

Abstract: Coal is extracted in a longwall working with two subsidiary galleries disposed respectively at the ends of the longwall coal-face. The coal is obtained at the longwall face, is loaded and removed with the aid of a continuous conveyor acting as a longwall-heading conveyor which delivers into one of the subsidiary galleries. In order to extract the coal a plurality of long drill-holes, respectively spaced from the coal-face and from each other by a spacing which corresponds to the effective force of an explosive charge provided with a fuse-cord, are bored in the coal starting from one of the subsidiary galleries. Each of the drill-holes extends the full effective length of the coal face and is loaded with such an explosive charge, and then filled with water under pressure. The charges are exploded in succession, starting with the drill-hole adjacent the coal-face, whereupon the coal so acquired is loaded and removed by the continuous conveyor. The conveyor is operative at all points along the coal-face simultaneously, and is a worm conveyor with a worm associated with a channel open along its length to the coal-face.

Abstract translation: 在长壁煤层的两端分别设置两个附属画廊的长壁中提取煤。 在长壁面上获得煤，借助于连续输送机装载和移除，该连续输送机作为长途舷梯输送机输送到其​​中一个附属画廊。 为了提取煤，多个长的钻孔分别与煤面间隔开并且相当于设置有熔丝的炸药的有效力的间隔，在煤中钻孔 从一个附属画廊开始。 每个钻孔都延伸了煤面的全部有效长度，装有这样的炸药，然后在压力下充满水。 电荷从煤层附近的钻孔开始相继爆炸，由此获得的煤被连续输送机装载和移除。 输送机同时沿着煤面的所有点进行操作，并且是具有蜗杆的蜗杆传送器，其具有与沿其长度方向向煤面敞开的通道相关联的蜗杆。