Study on fully mechanized coal mining technology in passed 40 years in Datong mining area

Briefly introduced the main achievements of the roof control technology, mining technique and the gas prevention and control as well as the seam spontaneous combustion comprehensive prevention and control technology for the fully mechanized coal mining under the hard roof and hard seam deposit conditions in Datong mining area in the passed 40 years. According to the present status of the coal resources getting less and less, looked ahead on the development orientation of the near several coming years in Datong mining area. Pointed out that the breakthrough should be achieved at the mining technology for the seam thickness below 1.2 m and above 20 m, and the fully mechanized coal mining technology suitable for the coal mine with residual coal resources and the new integrated coal mine in order to ensure the sustainable development of the enterprise.