Fluidized mining and in-situ transformation of deep underground coal resources: a novel approach to ensuring safe, environmentally friendly, low-carbon, and clean utilisation

International Journal of Coal Science & Technology

Feng Gao¹  Heping Xie²  Yong Zhang³  Yan Zhu⁴  Chang Lu⁴  Xiaodong Nie⁴  Yang Ju⁵ 

[1] Frontier Scientific Research Centre for Fluidized Mining of Deep Underground Resources, China University of Mining & Technology;Institute of Deep Earth Science and Green Energy, Shenzhen University;School of Energy and Mining Engineering, China University of Mining & Technology, Beijing;School of Mechanics and Civil Engineering, China University of Mining & Technology, Beijing, D11 Xueyuan RD;State Key Laboratory of Coal Resources and Safe Mining, China University of Mining & Technology, Beijing;

关键词: In-situ fluidized mining;    Unmanned automatic mining machine;    Mine layout;    Coal resources;    Low-carbon;    Environmental protection;   

DOI  :  10.1007/s40789-019-0258-1

来源: DOAJ

【 摘 要 】

Abstract Traditional coal mining and utilisation patterns are severely detrimental to natural resources and environments and significantly impede safe, low-carbon, clean, and sustainable utilisation of coal resources. Based on the idea of in situ fluidized coal mining that aims to transform solid coal into liquid or gas and transports the fluidized resources to the ground to ensure safe mining and low-carbon and clean utilisation, in this study, we report on a novel in situ unmanned automatic mining method. This includes a flexible, earthworm-like unmanned automatic mining machine (UAMM) and a coal mine layout for in situ fluidized coal mining suitable for the UAMM. The technological and economic advantages and the carbon emission reduction of the UAMM-based in situ fluidized mining in contrast to traditional mining technologies are evaluated as well. The development trends and possible challenges to this design are also discussed. It is estimated that the proposed method costs approximately 49% of traditional coal mining costs. The UAMM-based in situ fluidized mining and transformation method will reduce CO2 emissions by at least 94.9% compared to traditional coal mining and utilisation methods. The proposed approach is expected to achieve safe and environmentally friendly coal mining as well as low-carbon and clean utilisation of coal.

【 授权许可】

Unknown