多介质碳污协同减控及资源化应用的采动损害控制方法
By mixing power plant flue gas with coal-based solid waste to form a backfill slurry, the problems of goaf fires and rock strata migration have been solved, achieving the control of mining-related disasters and resource utilization, and improving the stability of rock strata and the corrosion resistance of the backfill.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA UNIV OF MINING & TECH
- Filing Date
- 2025-03-17
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies lack effective multi-media synergistic utilization methods when dealing with problems such as goaf fires, rock strata migration, and mine water corrosion, resulting in insufficient control of mining-induced disasters and resource utilization.
By mixing carbon dioxide from power plant flue gas with coal-based solid waste backfill material to form a backfill slurry, and then spraying and grouting it in all directions, combined with alkaline silicon-based activators and salt-resistant erosion agents, the oxygen concentration and rock strata stability in the goaf are controlled, groundwater quality is monitored, and rock strata stability and resource utilization are ensured.
It effectively reduces oxygen concentration in goaf areas, prevents fires, enhances rock strata stability, reduces backfilling costs, and enables large-scale utilization of coal-based solid waste and resistance to mine water corrosion.
Smart Images
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