Mechanized continuous mining method for wall-type gentle-inclined thin ore body

Abstract

The invention discloses a mechanized continuous mining method for a wall-type gentle-inclined thin ore body. A stope parameter with large structure size is designed in the thin ore body to realize the mining mode of the mechanized operation. A drill jumbo is used for drilling rocks, a scooptram is used for ore removal, the mechanized level and the production efficiency of the stope are improved, and through-thickness continuous mining is realized; bottom presplitting and hole blasting is carried out in the stope; in order to prevent from forming blasted steps on drilled rock which carries outexploding and hole blasting on an ore body side and carries out induced exploding and hole blasting on a top plate, a rock drilling roadway sinks for 0.5m; the dilution and the loss of the ore can becontrolled by presplitting blasting; and induced exploding and hole blasting on a top plate is carried out for induced spallation caving treatment of the top plate to process a goaf. The pressing, stacking and blasting technology is adopted for production blasting to control the position of slungshots and ores generated in blasting, and the ores in the step are conveyed by the scooptram. In the production process, the stope ground pressure is managed by hydraulic props. After certain production layout is carried out, the hydraulic props of the previous mining section are recovered, and induced spallation treatment is implemented to process the goaf.

Description

technical field [0001] The invention relates to a mechanized mining method for underground mines, in particular to a wall-type gently inclined thin ore body mechanized continuous mining method suitable for underground metal mines with gently inclined thin ore bodies. Background technique [0002] Restricted by the occurrence conditions of the ore body, the mining of the gently inclined thin ore body cannot realize the self-slipping of the ore inside the stope by gravity, and it is difficult to realize large-scale mechanized operations in the limited underground mining space. A complex and difficult to mine ore body. In the traditional mining method, the problems faced by the wall caving method are complex mining process, low efficiency and high consumption of production materials, resulting in complex stope production management and high mining costs; the main problems faced by the room-and-pillar method and the comprehensive method The reason is that the loss of ore pillar...

AI Technical Summary

Problems solved by technology

In the traditional mining method, the problems faced by the wall caving method are complex mining process, low efficiency and high consumption of production materials, resulting in complex stope production management and high mining costs; the main problems faced by the room-and-pillar method and the comprehensive method The reason is that the loss of ore pillars is relatively large, the recovery rate of ore is low, and the degree of resource utilization is low. Sometimes support measures such as bolts are required, and the process is complicated. In addition, personnel generally work under goafs or caving rock formations. Production safety is poor

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