特厚煤层智能化综放开采理论与关键技术架构

综放开采方法是我国特厚煤层矿区实现高产高效的主要技术途径，智能化综放开采是未来综放开采技术发展的重要方向。在分析千万吨级特厚煤层智能化综放开采技术和问题的基础上，围绕安全、高效、智能这一主题，综合考虑特厚煤层顶煤体和上覆岩层的相互作用，以掌握特厚顶煤冒放理论，实现综放工作面放煤智能化，降低含矸率、提高顶煤采出率为主导，提出要解决的关键科学问题和技术构想。针对综放开采存在的煤矸智能识别、智能放煤控制、“采-支-放-运”系统智能协调等主要难题，凝练出特厚煤层智能综放开采大尺度顶煤体破碎与冒放机理，特厚煤层智能化采放协调控制机理与方法，特厚煤层智能综放开采群组放煤过程控制原理三大科学问题。攻克特厚煤层群组协同智能放煤工艺决策技术，特厚煤层顶煤厚度与放煤量实时监测技术，冲击振动和高光谱融合的煤矸识别技术，多模式融合的智能化放煤装备及控制技术，综放工作面“采-支-放-运”系统智能协调控制技术五项关键技术。突破特厚煤层智能化综放开采技术与装备瓶颈，研发煤矸识别装置、开发智能放煤控制系统及软件，解决采放协调、煤矸识别、群组放煤等难题，创建年产1 500万t智能化综放开采示范工程。最终实现特厚煤层智能化综放开采，为我国特厚煤层的安全、高效开发提供可靠的技术支撑。

Theory and its key technology framework of intelligentized fully mechanized caving mining in extremely thick coal seam

Fully mechanized caving mining is the main technical way to achieve a high yield and high efficiency in coal production at extremely thick coal seam area in China.Intelligent fully mechanized caving mining is one important development direction for fully mechanized caving mining technology in the future.By analyzing the technology and problem of intelligent fully mechanized caving mining in extremely thick coal seam with a ten million ton production level,this study focuses on the theme of safety,efficiency and intelligence,and the interaction between top coal body of extremely thick coal seam and overlying strata.Also,the study aims to understand the caving theory of extremely thick coal seam,realize intelligent caving mining in fully mechanized caving face,reduce involving stone rate,and increase recovery rate.Therefore,the key scientific problems and technical ideas for solving the problems are proposed.To overcome the problems of the intelligent identification of coal gangue,the intelligent control of caving mining,and the intelligent coordination system of “mining supporting caving transiting” in fully mechanized caving mining,the study has condensed three scientific problems,i.e.,the crushing and caving mechanism of large scale top coal body,the method about the coordination control of intelligent mining and caving and the principle of caving control.The study has solved five key technological problems as follows:1) the technology and decision technology of intelligent caving mining process of group collaborative in extremely thick coal seam;2) the real time monitoring technology of top coal thickness and caving coal quantity;3) coal gangue detection technology which combined shock vibration with high spectra;4) intelligent caving coal equipment and control technology of multimodal fusion and 5) intelligent coordination control technology of “mining supporting caving transiting” system in a fully mechanized caving mining face.This study  overcomes the bottleneck of technology and equipment on intelligent fully mechanized caving mining in extremely thick coal seam.As a result,the study has developed a coal gangue detection device,the control system and software of intelligent caving coal control,and solved the problems of mining and caving coordination,coal gangue detection and caving mining group.A demonstration project of intelligent fully mechanized caving mining with annual output of 15 million tons has been implemented.Finally,the intelligent fully mechanized caving mining in extremely thick coal seam is realized,which provides a case and a reliable technical support for the future safe and efficient development of extremely thick coal seam.