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GU Chengjin,YANG Baogui,LU Shaojie,et al. The new green mine construction in Longwanggou Coal Mine under the background of carbon peaking and carbon neutrality[J]. Coal Science and Technology,2023,51(S1):440−448. DOI: 10.13199/j.cnki.cst.2022-1612
Citation: GU Chengjin,YANG Baogui,LU Shaojie,et al. The new green mine construction in Longwanggou Coal Mine under the background of carbon peaking and carbon neutrality[J]. Coal Science and Technology,2023,51(S1):440−448. DOI: 10.13199/j.cnki.cst.2022-1612

The new green mine construction in Longwanggou Coal Mine under the background of carbon peaking and carbon neutrality

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  • Received Date: October 02, 2022
  • Available Online: May 10, 2023
  • Under the background of vigorously promoting “carbon peaking and carbon neutrality” in China, it is particularly urgent to accelerate the construction of safe, efficient and sustainable green mines. Therefore, this paper takes Longwanggou Coal Mine as an example and constructs a new green mine model in line with Longwanggou Coal Mine. Through the research and analysis of the regional resources of Longwanggou Coal Mine and the current situation of the mine, the feasibility and operability of comprehensive coal gangue treatment, coal mining subsidence area restoration and wind and solar energy microgrid construction of Longwanggou Coal Mine were studied by taking into account the difficulties of coal gangue storage, large coal mining subsidence area and rich wind and solar energy resources of the mine, and the outlook of the future development of green mines in combination with the construction of a new type of green mine in Longwanggou Coal Mine was put forward gradually towards intelligence. The following results have been achieved: for the first time, a new type of green mine resource development of Longwanggou mine is proposed: mineral resource production - coal-based solid waste backfill - wind and solar power grid construction - ecological environment restoration - wind and solar energy generation - mineral resource production. The new green mine construction technology integrated with “coal mining - coal sorting - filling - rock control - surface restoration - grid construction”; constructed a comprehensive utilization model of coal gangue extracting kaolin from coal gangue and waste gangue used to fill coal mining sinkhole (achieved economic gain and processed about 6 252 000 t of coal gangue); built a clean, low-carbon and safe wind and solar energy microgrid (preliminary estimate of average annual grid power about 139 246 000 kW·h); reduced CO2 emissions by 133 676 000 kg; managed and utilized 1060 square meters of land area in coal mining subsidence area. The construction of the new green mine in Longwanggou has significantly improved the land utilization rate of the mine, relieved the pressure of electricity consumption in the mine, reduced CO2 emissions, solved the problem that restricted the development of Longwanggou Coal Mine from the root, and provided a new idea for the construction of green mine.

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