On May 12th, the project of “Underground Gasifier Structure and Construction Technology†in the theme project of “Key Technology of Underground Coal Gasification Industrialization†undertaken by Xinao Gasification Coal Mining Co., Ltd. was completed and accepted. The successful holding of the acceptance meeting marks the breakthrough of the research progress of the Xinao Group on the key technologies of underground coal gasification industrialization and has been recognized by the state. The successful acceptance of this project marks that the underground coal gasification has formed a complete scientific and technological system centered on its core technology “underground gasifier structure and constructionâ€, laying a solid foundation for the realization of gasification coal mining industrialization. At the project acceptance meeting, Dr. Liu Hongtao, the main R&D member of the research group and the director of the process research and development department of Xinao Gasification Coal Mining Co., Ltd., first reported the objectives and research contents of the project, the technology and implementation report of the project completion, and the research on the project. Achievements, economic and social benefits arising from the project, and prospects for future development trends. The main research objective of this project is to solve the key technical bottleneck of the directional penetration of the gasification channel of the underground coal gasification process without wells, obtain the parameters of the well-less underground gasification furnace structure and the gasification channel penetration method, and construct the well-free coal underground gas. Chemical furnace, furnace construction technology system and on-site experimental platform. Focusing on the research objectives of the project, the following results have been obtained: 1. The controllable gas injection point “strip mining-face mining†gasification furnace structure; 2. The formation range and control technology of coal seam high permeability crack under the action of composite force field; , well structure and well-forming technology of furnace hole under thermal action; 4. Directional horizontal drilling and reverse gasification channel formation technology. At the same time, on the day of acceptance of the project, five patented technologies and one technical paper were published. According to Dr. Zhang Ming, the project leader, the 863 project “Key Technologies for Underground Coal Gasification Industrialization†contains six topics. They are: “Underground gasifier structure and construction technologyâ€, “Gasification working surface comprehensive detection technologyâ€, “Gasification zone roof falling and groundwater prevention and control technologyâ€, “Coal underground gasification process stability control processâ€, “ “Contamination and migration of pollutants, control and prevention technologyâ€, “Simulation and evaluation system for underground coal gasification processâ€. Among them, "underground gasifier structure and construction technology" is the most important topic in the project. At the end of the project acceptance, after the on-site expert group carefully listened to the report content and discussed and questioned the key technologies involved in the project, the project has good research prospects and should continue to conduct in-depth research and produce more core patents. Improve technology. Finally agreed to pass the acceptance. In addition, prior to the acceptance of this project, Xinao Gasification Coal Mining Co., Ltd., the project leader, has organized an on-site inspection of the technical demonstration system of the project on August 9, 2014, on March 26, 2015. All the research results of the subject were evaluated by experts. It is reported that the project was completed at the end of 2011, and the Ministry of Science and Technology issued the “Notice on the Key Technology Project of Coal Underground Gasification Industrialization in the Advanced Energy Technology Field of the 863 Programâ€, Xinao Gasification Coal Mining Co., Ltd. and China University of Mining and Technology ( Beijing), Huazhong University of Science and Technology, and East China University of Science and Technology jointly undertake the research on “Key Technologies for Industrialization of Coal Underground Gasification Technologyâ€. The project acceptance group consists of the Institute of Process Engineering of the Chinese Academy of Sciences, the Institute of Geology and Geophysics, the Coal Science Research Institute, Tsinghua University, Shenhua Science and Technology Research Institute, the State Administration of Work Safety, Datang International Chemical Technology Research Institute, and Shaanxi. It is composed of experts and representatives from Coal Chemical Industry Group and Xinwen Mining Group. Xinao underground gasification technology is in line with the national energy development strategy and conforms to the “two alternatives†energy policy proposed by the State Council. It is of great significance for promoting local economy, technological development and industrial upgrading, promoting environmental protection and ensuring national energy strategy security. The development of underground gasification technology plays an important role in giving full play to China's rich coal resources and producing clean energy and ensuring energy supply. It fills the gap in China's technical field and makes China's underground gasification technology at the world's leading level. Founded in 1989, Xinao Group started from the gas business and has built a variety of related industries such as energy distribution, smart energy, solar energy, energy and chemical industry through continuous industrial expansion and strategic upgrading. With a mission to innovate clean energy, Xinao is determined to become a respected global clean energy company. 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Xinao Coal Underground Gasification Technology 863 theme project passed the acceptance