煤-热共采模式下矿井地热水开采及智能调度技术研究  

Mining geothermal water extraction and intelligent scheduling technology under coal-heat co-mining mode

作　　者：李延河[1,2] 万志军 于振子[3] 张源 张波[3] 甄正 赵东 师鹏 LI Yanhe;WAN Zhijun;YU Zhenzi;ZHANG Yuan;ZHANG Bo;ZHEN Zheng;ZHAO Dong;SHI Peng(Pingdingshan Tianan Coal Mining Co.,Ltd.,Pingdingshan 467009,China;School of Mines,China University of Mining&Technology,Xuzhou 221116,China;State Key Laboratory of Coking Coal Exploitation and Comprehensive Utilization,Pingdingshan 467009,China;No.10 Mine of Pingdingshan Tianan Coal Mining Co.,Ltd.,Pingdingshan 467009,China)

机构地区：[1]平顶山天安煤业股份有限公司,河南平顶山467009 [2]中国矿业大学矿业工程学院,江苏徐州221116 [3]炼焦煤资源开发及综合利用国家重点实验室,河南平顶山467009 [4]平顶山天安煤业股份有限公司十矿,河南平顶山467009

出　　处：《中国矿业》2023年第9期110-118,共9页China Mining Magazine

基　　金：国家自然科学基金项目资助(编号:51674242,52074266)。

摘　　要：为响应我国“碳达峰、碳中和”战略目标,实现能源绿色清洁转型,开发深部矿井地热资源具有重要意义。以平煤十矿为背景,利用热储体积法,评价了矿区地热水开发潜力,结果显示矿区地热水蕴藏热能7.63×10^(17)J,折合标煤26.1 Mt,动态地热流体可采量折合标煤1.01 Mt/a,具有较高开发潜力。基于此,在煤-热共采理论及框架的基础上,提出了矿井地热水开采方法,并提出了一种基于地面热负荷的地热水开采智能调度技术。通过计算矿区热负荷,设计了矿井地热水开采方案,并进行了现场工业性实验。实验结果表明,开发利用矿井地热水可满足平煤十矿矿区17万m^(2)的冬季供暖及7000余名职工日常洗浴,同时可减少燃煤约10327 t/a,折合CO_(2)排放量2.69×10^(4)t/a,为企业带来693.8万元的经济效益。因此,深部矿井地热水开采具有良好的安全效益、经济效益、社会效益与环境效益,可为我国“双碳”目标的实现贡献力量。The development of deep mine geothermal resources is of great significance in response to China’s strategic goal of“carbon peaking and carbon neutrality”and achieving a green and clean energy transformation.Based on the context of Pingdingshan No.10 Mine,the geothermal water development potential in the mining area is evaluated by using the method of thermal reservoir volume,and the results show that the geothermal water in the mining area has a thermal energy of 7.63×10^(17)J,equivalent to 26.1 Mt of standard coal,the dynamic geothermal fluid extractable quantity is equivalent to 1.01 Mt of standard coal per year,indicating a high development potential.Based on this,a method for extracting geothermal water from mines is proposed based on the theory and framework of coal-heat co-mining,along with an intelligent scheduling technology for geothermal water extraction based on ground heat load.By calculating the thermal load of the mining area,a geothermal water extraction scheme for mines is designed,followed by on-site industrial experiments.The results indicate that the development and utilization of geothermal water from mines can meet the winter heating needs of an area of 170000 m^(2)in Pingdingshan No.10 Mine and provide daily bathing for over 7000 employees,while reducing coal consumption by approximately 10327 tons per year,equivalent to a CO_(2)emission reduction of 26900 tons per year,bringing about an economic benefit of 6.938 million RMB to the company.Therefore,deep mine geothermal water extraction has significant benefits in terms of safety,economy,society,and environment,making a valuable contribution to achieve China’s“carbon peaking and carbon neutrality”goals.

关 键 词：煤-热共采 地热水 热负荷 矿区供暖 井筒防冻 高温矿井 

分 类 号：TD82[矿业工程—煤矿开采]