Open pit coal mine slope coal filling mining system and method in seasonal frozen area
By introducing the Bianbang coal mining system and the ground solid waste cementing and filling system in the open-pit coal mines in the freezing area, the problems of waste of coal resources and slope stability and safety of open-pit coal mines have been solved, and efficient and safe coal resource mining has been achieved. and environmental protection.
CN119435111APending Publication Date: 2025-02-14CHINA UNIV OF MINING & TECH +1
Patent Information
- Application Number
- CN202411675583.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-02-14
Smart Images
Figure CN119435111A_ABST
Abstract
The invention discloses a cut-and-fill mining system and method for slope coal of an open pit coal mine in a seasonal freezing area, and belongs to the technical field of cut-and-fill mining of slope coal of open pit coal mines. Comprising a slope coal mining system and a ground solid waste cemented filling system. The solid waste cemented filling material is prepared on the basis of the geological conditions of the open pit coal mine in the seasonal frozen area, and an open pit coal slope coal filling mining scheme is designed: slope coal is mined through a slope coal mining system, a mining cave is formed, and the solid waste cemented filling material is conveyed to the mining cave for filling through a ground solid waste cemented filling system. According to the method, coal-pillar-free filling coal mining between the slope coal mining chambers can be realized, slope coal pressing resources of the open pit coal mine can be mined as much as possible, and the safety of slope coal mining of the open pit coal mine in the seasonal freezing area and the mining rate of the coal resources are improved.
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Citation Information
Patent Citations
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