Ore-blast backfill synergetic mining method for partitioned rock drilling stage of inclined medium-thick ore body

Abstract

The invention belongs to the mining field and particularly relates to an ore-blast backfill synergetic mining method for a partitioned rock drilling stage of an inclined medium-thick ore body. According to the mining method, the partitioned rock drilling of fan-shaped blast holes of a trench ore section, annular blast holes of a non-triangular jamb and beam-shaped blast holes of triangular jamb in a rock drilling cave is realized based on different ore bodies and rock drilling conditions, the problem of blasting of a hanging side triangular jamb is solved, and the blasting effect of the annular blast holes in the rock drilling cave is improved; by comprehensively utilizing the dead load and the blasting-power handling of the ore body, the concentrated ore gathering of ores in ore gathering tunnels of trenches of different partitioned mining sections and the concentrated ore removal of ore removal lands and ore removal approach roads in the stage are realized, and the centralized working scale and efficiency of mining are improved; and by virtue of interval recovery, subsequent cementing and non-cementing synergetic backfilling on ore chambers and jambs, the continuity of the mining process among different mining sections is realized, and an efficient, safe and low-cost continuous mining method is provided for the inclined medium-thick ore bodies with medium stability and higher stability.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to View More

AI Technical Summary

Benefits of technology

This patented method involves dividing rocks into smaller blocks called “strands” before they enter the underground mines or openings at specific locations within them. By combining these segments together, there can be multiple stages of crushing each block separately by optimizing energy consumption and productivity. Additionally, it uses three types of grinding techniques - cone milling, rod shaping, and puncher excavations to improve the overall performance and quality of the stone faces. It also includes coordination of coal feed and exploitation processes through various methods such as slit boring, multiphase blasts, and advanced materials placer systems. Overall, this new method allows for more effective resource exploration and development throughout large areas of strata than previously available options.

Problems solved by technology

The technical problem addressed by this patented technology relating to improving the efficiency and effectiveness of exploring deep mines during excavation operations while minimizing environmental impacts or damage to equipment involved.

Images