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Implementation of paste backfill mining technology in Chinese coal mines.
Qingliang Chang1, Jianhang Chen2, Huaqiang Zhou3
1School of Mines, Key Laboratory of Deep Coal Resource Mining, Ministry of Education of China, China University of Mining and Technology, Xuzhou 221116, China.
Thescientificworldjournal
|September 27, 2014
Summary
Paste backfill mining is an effective clean coal mining technology. This method improves safety and excavation rates while utilizing waste materials and preventing surface subsidence.
Area of Science:
- Mining Engineering
- Environmental Science
- Materials Science
Background:
- Coal mining faces environmental challenges, necessitating clean technologies.
- Surface subsidence is a significant issue in underground coal mining.
- Sustainable resource management requires utilizing mining byproducts.
Purpose of the Study:
- To introduce paste backfill mining technology for coal mines.
- To analyze its principles, processes, and materials.
- To evaluate its effectiveness in environmental protection and resource utilization.
Main Methods:
- Review of existing clean coal mining technologies.
- Detailed explanation of paste backfill mining principles and processes.
- Case study analysis of paste backfill mining implementation in Daizhuang Coal Mine.
Main Results:
- Paste backfill mining enhances coal mining safety and excavation rates.
- The technology effectively mitigates surface subsidence.
- Solid wastes like coal gangue can be repurposed as backfill materials.
Conclusions:
- Paste backfill mining is a viable clean coal mining technology.
- It offers environmental benefits by reducing subsidence and utilizing waste.
- The technology demonstrates widespread applicability in the coal industry.
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