倾斜中厚矿体中深孔分段上下盘矿分采嗣后充填采准结构
By setting up adjustable-thickness isolation ore layers and mining preparation structures in the middle of the ore body, the independent mining of high-grade ore bodies can be achieved, solving the problem of efficient and selective mining under conditions of large differences in ore body grade, and improving the economic benefits and safety of mining.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NORIN MINING LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient to effectively address the problem of efficient and selective mining in situations with significant differences in ore grade. This leads to the mixing of low-grade ore, increased beneficiation costs, reduced economic benefits, unreasonable stope structure, difficulty in controlling ground pressure, and mismatch between backfilling processes and mining sequence, all of which affect safety.
An adjustable-thickness isolation layer is set in the middle of the ore body. The high-grade ore body is independently mined by deep-hole segmented mining of the hanging wall and footwall. Ventilation and ore transportation are carried out by using cross-vein connecting roads and segmented transport roadways. Combined with safety pillars and backfilling methods, a complete mining preparation structure is formed.
It significantly reduces ore dilution rate, improves mining economic efficiency, reduces exposed goaf area, reduces ground pressure risk, improves resource recovery rate and safety, and simplifies mining preparation work.
Smart Images
Figure CN224515183U_ABST