China Energy Creates New Record with Safe Stopping of 10 Million Tons of Coal

On February 4, 2019, Shendong Coal Group, a subsidiary of China Energy Group, announced that its 8.8-meter ultra-large high-intelligent fully mechanized coal mining face, the world’s first of its kind which China Energy owns independent intellectual property rights, created a new record by producing 10 million tons of coal after 323 days of safe stopping.

Since the day it was launched, the project has created many world records: The world’s largest installed capacity (15,842 KW), the world’s highest mining height (8.8 meters), the world’s heaviest mining equipment (16,679 tons), the world’s greatest mining efficiency (1,050 tons/working shift), and particularly the world’s highest daily coal production of 58,400 tons and the world’s highest monthly coal production of 1.46 million tons. Its single well and single mining face has the capacity of producing 16 million tons of coal each year. Compared to a 7-meter large mining face at the same coal seam, the 8.8-meter ultra-large high-intelligent fully mechanized coal mining face in Shangwan Coal Mine can recycle an additional volume of 4.05 million tons of coal, increasing the recycling rate by 20.2 percent, and improve the mining efficiency by 128 tons/working shift, an increase of 14.3 percent. It thus greatly increases the recycling rate and mining efficiency.

The project lasted 14 months and developed a full set of intelligent mechanized mining equipment that CEG holds independent intellectual property rights and is completely homemade, which was successfully put into trial operation at the No.12401 fully mechanized mining face in Shangwan Coal Mine on March 20, 2018.

The development and application of the 8.8-meter ultra-large mining face technology and the full set of mechanized mining equipment filled in the technical blank in the field of extra-thick coal seam mining both at home and abroad, upgraded the group’s capacity of researching, developing and manufacturing fully mechanized mining equipment, and marked a historic revolution of fully mechanized mining equipment and technology. It has not only stimulated the development of the world’s extra-high mining face fully mechanized mining equipment, but also provided technological benchmarks and references for safe and efficient stopping of underground extra-thick coal seams. It is crucial to promoting the innovation and progress of green mining technology, charting the new course for the coal mining industry, and enhancing the construction of world-class demonstrative coal mines.