Narrow Results

Aimed at reducing gangue pollution, an underground gangue separation method was put forward in this paper. The impact crushing experiment was performed on coal and gangue from three mines in China. There were five impact velocity levels in the experiment. The experimental results indicate that the 50 mm material ratio for coal is larger than that for gangue at the same impact velocity, which proves that the separation method is feasible. For different mines, the crushed granularities of coal and gangue are different at the same impact velocity. The sieving boundary depends on the mechanical and physical properties of gangue and coal. By using the separation equipment underground, the discharge amount of gangue in Liangzhuang Mine could be decreased by 163100 tonnes per year, with an annual benefit of 52464900 yuan.

Mix the related studies on underground mine rescue team equipment at home and abroad; analysis the various elements of transport equipment limitations and requirements of the man-machine-environment system after the mine accident. Against the problem for the mine rescue teams in the mine rescue process. Determine the mine rescue team equipment underground transport system conceptual design to produce a transport equipment to improve the efficiency of underground mine rescue.

Papers from the design orientation, functional design, human-computer interaction, technical principles, product placement and product modelling, six aspects of high-speed type exoskeleton carrying line man-machine system, are described in detail in the key design.