深地煤炭流态化开发的爆轰发电技术创新路径

Innovative pathways for detonation power generation technology in deep coal fluidization development

  • 摘要: 在全球能源结构加速转型、需求持续攀升的背景下,深地煤炭资源因其丰富储量与巨大能源潜力,日益成为矿业工程领域关注的重点方向。为应对开采难度与环保压力,兼顾经济可行性与可持续发展,深地煤炭资源的开发应在确保高效利用的前提下,推动自身实现减排降碳与绿色转型。基于“深部煤炭资源流态化开采”“煤炭化学开采”与“煤基电”等技术思路,系统梳理并介绍爆轰−发电式深地煤炭资源开采模式与技术结构。该模式以煤粉爆轰燃烧技术为核心,结合爆轰燃烧−机械/磁流体前沿发电技术,构建爆轰−涡轮/磁流体(Magnetohydrodynamics,MHD)联合发电系统,为实现煤炭资源的高效转化与清洁利用提供方案支撑。通过对爆轰发电模式及技术架构分析,提出煤粉爆轰能量高效释放机制、爆轰−发电式耦合方案、全生命周期爆轰−发电式动态管理机制以及爆轰−发电式深地采煤新理论与新方法4项基本理论,并围绕煤/瓦斯气固两相稳定爆轰技术、爆轰模型构建与动态过程优化技术、爆轰−发电式发电效率及效益评估、爆轰−发电式采煤方法综合设计4项关键技术展开论述,阐明其在深部煤炭开采实践中的转型升级价值。在此基础上,提出系统化的工程应用策略,阐明开采工艺与爆轰发电模式的协同机制,明确各关键环节的安全管理与过程优化重点,完善爆轰−发电式深地煤炭资源开发的总体路径,为“煤基电”能源体系建设及我国深地煤炭资源的清洁高效利用提供参考。

     

    Abstract: Deep coal resources with abundant reserves and considerable thermal potential are receiving increased attention in mining engineering, given the accelerating transformation of the global energy structure and the growing demand for clean energy. To address extraction challenges and environmental pressures while ensuring economic feasibility and sustainable development, efforts are made to enable carbon reduction and green transformation under high-efficiency utilization of deep coal resources. A systematic review of “deep coal resource fluidized mining”, “coal chemical mining”, and “coal-based power” informs the introduction of a detonation-generation mining approach and its technical framework. The approach places coal-powder detonation combustion technology at its core and integrates advanced detonation combustion-mechanical/magnetohydrodynamic power generation, forming a detonation-turbine/MHD hybrid power system that supports efficient conversion and clean utilization of coal resources. Four fundamental theories are presented, including the Coal-powder Detonation Energy Release mechanism, the Coupled Coal-powder Detonation-generation Power Scheme, a Full Life Cycle Detonation-power Generation Dynamic Management Mechanism, and the Blasting-electric Power Deep coal mining theory and method. Discussion centers on four key technologies: Stable coal/gas two-phase detonation, detonation model construction and dynamic process optimization, detonation-based power generation efficiency assessment, and comprehensive design for detonation-based coal mining, demonstrating their role in upgrading deep coal mining practices. On this foundation, a systematic engineering strategy is proposed to clarify the synergy between mining processes and the detonation-based power generation mode, highlight safety management and process optimization priorities at each critical stage, and refine the overall detonation-generation pathway for deep coal resource development. This pathway offers valuable insights for establishing a coal-based power system and promoting the clean and efficient utilization of deep coal resources in China.

     

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