Major scientific and technological innovation achievements and practices of CHN Shendong Coal Group

CHN Shendong Coal Group Co.,Ltd (hereinafter referred to as “Shendong Company”) is the backbone coal production enterprise of the China Energy Group. It has made remarkable achievements in safe and efficient coal mining, domestic high-end equipment manufacturing, intelligent mine construction, safety management mode innovation and green ecological low-carbon, leading the scientific and technological innovation of the China coal enterprises, it has created many world firsts in the aspects of fully mechanized mining height, per capita work efficiency of the mine, long-term safety management of the mine and the construction of a hundred million ton mining area management and control center. This paper systematically introduces the progress of Shendong Company in science and technology management, innovation platform, collaborative innovation, talent team, intellectual property rights, standard system and scientific and technological achievements, and summarizes the innovation driving system of Shendong Company and the scientific and technological innovation channel of spiral acceleration. In terms of mining technology innovation and practice, this paper combs the technical breakthrough of Shendong Company in gradually increasing the mining height of full height fully mechanized mining from 6.3 m to 8.8 m, the mining technology of fully mechanized mining in the upper layer of shallow hard and extra thick coal seams and upper layer fully mechanized mining lower layer fully mechanized caving was introduced, the technical problems, key equipment and technologies faced by equal-height mining were sorted out, and the technical adaptability of short wall mechanized full caving method and the technical practice of non pillar mining method were analyzed; this paper introduces the complete set of fast intelligent tunneling system and the key technology of tunneling anchor integration, which improves the tunneling efficiency and solves the contradiction of “Imbalance in mining and excavation”. In terms of research, development and application of domestic high-end equipment, this paper introduces the breakthrough achievements made by Shendong Company in the equipment matching of the world's first 8.8 m super large fully-mechanized mining face, and analyzes the technical difficulties and innovation approaches faced by the first set of water hydraulic support in China, this paper analyzes the breakthroughs of 6 000 m retractable single point drive belt conveyor in the research of resistance reduction technology for the whole machine, tension control and intelligent frequency conversion drive technology, summarized the experience of developing the world's first double hundred ton heavy haul carrier to break through technical barriers, and enumerates the technical innovation achieved by applying new energy mining electric vehicles to the underground. In the aspect of intelligent mine construction, in view of the problems faced by intelligent coal cutting and machine following rack in the face of intelligent coal mining face, the technical innovation realized by Shendong Company in the process of intelligent coal mining face is summarized; sorted out the pioneering journey of intelligent coal preparation plant from scratch; for the first domestic coal mine operating system in China: Mine Harmory operating system, the key technology core and the value of popularization and application are analyzed; this paper analyzes the integrated technology used in the construction of the first 100 million ton mining area digital centralized management and control platform in China, and introduces the innovation and practice of 13 kinds of underground intelligent robots. In terms of safety management technology and practice, this paper has established the “135” work method safety risk management and control management system, which has realized the ultra long safety production cycle of ten million tons of coal mines; the mine pressure control system of Shendong Company and the intelligent cloud platform for dynamic and efficient early warning of mine pressure have been established, forming the unique mine pressure control technology system of Shendong Mining Area; and introduces the technical system of water, fire and gas disaster prevention, which ensures the construction of safety management system of Shendong Company.In the aspect of green ecological construction, this paper introduces the achievements of Shendong Company in the green development and technological innovation of coal, expounds the technical practice in the development of ecological mines, green mines and clean coal, and introduces the Shendong Pioneer Demonstration Area in the implementation of the major national strategy of ecological protection and high-quality development in the Yellow River Basin. By summarizing the scientific and technological innovation system and innovation achievements of Shendong Company, this paper probes into the thinking of the future scientific and technological development of coal mines, and clarifies the development direction of its scientific and technological innovation system and major scientific and technological breakthrough.