PRESSED COAL FILLING MINING SYSTEM AND PROCESS FOR END SLOPE OF OPEN PIT

摘要

A pressed coal filling mining system and process for an end slope of an open pit. The mining system comprises a tunneling machine (1), a mechanical arm (12), a filling pump (7), a filling pipeline (5), and a solenoid valve (16). The mining process comprises: tunneling and automatic coal cutting, automatic pipe arrangement, tunnel entrance sealing, automatic pipe filling, and automatic monitoring of tunnel filling. When the tunneling machine (1) performs tunneling and coal cutting, the tunneling machine (1) causes the mechanical arm (12) to extend so as to drive the filling pipeline (5) to move forwards. The filling pipeline (5) is automatically arranged at a bottom end of a side of a tunnel (3). After mining, the tunneling machine (1) moves backwards, and the mechanical arm (12) is separated from the filling pipeline (5), such that the filling pipeline (5) is left in place, and automatic pipe arrangement is achieved. A monitoring pipeline (8) is provided on a flat plate corresponding to the tunnel (3) to be filled. When the tunnel (3) is fully filled with cementing material, the monitoring pipeline (8) sends a signal, and the filling pump (7) stops pumping slurry to the filling pipeline (5) thereby completing tunnel filling, and achieving automatic monitoring of tunnel filling. The process combines a coal mining process employing a cementing filling with a coal mining process employing end slope tunneling, employs an unmanned filling working face to achieve mining of pressed coal at the end slope of the open pit, and achieves automatic pipe arrangement and automatic monitoring of tunnel filling.