新型大采高钻采法采煤机工业试验及工作面安全监测研究

国内外尚没有一种很好地适应厚煤层中小型矿井短壁开采的采煤工艺和综采设备,晋城煤业集团研制的新型高效一次采全高钻采法采煤机及其配套设备可解决这一难题。将新型采煤机在大采高综采工作面进行了工业试验,结果表明,首创"采内放外"采煤工艺的新型钻采法采煤机,具有先进性、低耗能性,经济高效。工作面矿压实测结果表明:工作面老顶为II级老顶,来压显现明显;回采期间,巷道支护效果良好;液压支架工作阻力具有良好的安全储备,能够有效地控制顶板,保证工作面安全,为新型采煤机的安全开采提供设备支持;新型采煤机安全高效开采表明其具有广阔应用前景。

Field experiment about new high cutting height with drilling-spalling continuous mining method and safety study on mechanized workface system

Nowadays there is not a good kind of mining technology or mining equipment which can well adapt to short-wall mining of medium and small coal mines with a thick coal seam,while it is the new and effective drilling-spalling continuous mining shearer with its corollary equipment produced from Jincheng Coal Mining Group that can perfectly solve this difficult problem.In order to achieve the widespread use of this kind of equipment,field experiment about the new and effective shearer is done in high cutting height mechanized workface.The results indicate that the new drilling-spalling continuous mining shearer with the first ＂cutting the inner and caving the outer＂ coal mining,has the advantages of advanced lower energy consumption and cost effectively.The observations on the pressure behaviour indicate that the main roof of the mechanized workface is the roof of category II,and the pressure appearance is significant.During the mining,the mine tunnel pressure observations show its good supporting effect.The working resistance of hydraulic support has good security reserve and can control the roof effectively,ensuring the safety of workface and providing the new equipment for the safety mining of the new shearer.This cost-effectively new equipment shows penitential widespread application in future.