en.Wedoany.com Reported - China's Huangling Mining Group Co., Ltd., in collaboration with relevant units, has successfully developed a complete set of efficient intelligent mining equipment for thin and ultra-thin coal seams. Specifically designed for extreme working conditions with a minimum mining height of 0.78 meters, this equipment enables automated cutting and support operations. It is equipped with intelligent systems such as remote centralized control, equipment coordination, and posture sensing, establishing a production model of "unmanned operations inside the face, human intervention outside the face." The project was completed by a team including Wang Pengfei and Li Tuanjie, and the achievements have been recognized with coal industry science and technology awards. The equipment is produced by Shaanxi Coal Industry Co., Ltd.
Huangling Mining Group is a core subsidiary of China's Shaanxi Coal and Chemical Industry Group Co., Ltd. Founded in 1989 and headquartered in Huangling County, Yan'an City, Shaanxi Province, the company is primarily engaged in coal mining, washing, coking, power generation, and building materials. Its mining area is located in the Huanglong Coalfield, where coal seam thickness varies significantly, with a high proportion of thin and ultra-thin seam resources. Thin coal seams (0.8 to 1.3 meters thick) and ultra-thin coal seams (less than 0.8 meters thick) have long faced challenges such as low resource recovery rates, high mining costs, and significant safety risks due to narrow mining spaces and difficulty in deploying mechanized equipment. The complete set of equipment developed this time specifically addresses these industry pain points, innovatively creating a dedicated shearer, low-profile hydraulic supports, and an intelligent scraper conveyor, enabling automated operations at a mining height of 0.78 meters.
The key technologies of this complete equipment set include: a dedicated shearer with a compact design and high power density, suitable for cutting in extremely low mining heights; low-profile hydraulic supports providing stable support within limited space through optimized structures; and an intelligent scraper conveyor with self-sensing and speed regulation functions. The remote centralized control system allows real-time monitoring and operation of the working face from underground or surface control centers. The equipment coordination system ensures precise synchronized operation of the shearer, supports, and conveyor, while the posture sensing system monitors equipment status in real time and automatically adjusts parameters. The application of this equipment has significantly improved the resource recovery rate and mining efficiency of thin coal seams, while reducing the frequency of personnel entering hazardous areas.
According to statistics from the China Coal Industry Association, China's recoverable reserves of thin coal seams exceed 30 billion tons, accounting for approximately 20% of total coal reserves. For a long time, the mechanization level of thin coal seam mining has been low, leaving a large amount of resources idle or discarded. After the successful application of this complete set of equipment developed by Huangling Mining, it has created a replicable and scalable intelligent technology model for the development of similar coal seam resources in China, helping to unlock the production capacity of thin coal seams and improve the overall utilization level of China's coal resources. As the producer, Shaanxi Coal Industry Co., Ltd. will continue to promote the application of this equipment in mining areas both within and outside the group.
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