硬煤超大采高智能化综放开采关键技术装备研究

为实现8~12m硬质特厚煤层安全高效开采,针对硬煤冒放性差的特点,采用小采放比开采模式,增加割煤高度,利用围岩扰动改善顶煤冒放性能,实施超大采高综放开采,研究了硬煤超大采高综放开采成套装备,得出了工作面总体设备配套参数,优化了工作面大梯度过渡技术及端头区多设备联合支护方案。针对顶煤冒落块度大问题,研究了大运量煤流运输系统,配套采用后部刮板输送机交叉侧卸技术,配置了煤流四级破碎体系,工作面采用高可靠性智能控制采煤机,创新研发了强扰动高效放煤机构及"记忆+远程干预"放煤系统,创建了具有主动感知、自动分析、系统协同性能的安全高效的智能综放工作面,为实现年产1.5Mt特厚煤层综放开采奠定了基础。

Research and Practice on Key Technologies and Equipment for Intelligent Fully Mechanized Caving Mining of Hard Coal with Super Large Mining Height

Aiming at 8~12m hard and Extra-thick Coal seam, the fully mechanized top-coal caving mining with super-large mining height，with the cutting height increased, is adopted to enhance the caving performance of top-coal, the paper optimizes the matching parameters of working face equipment, develops a complete set of equipment for fully mechanized top-coal caving mining with super-large mining height of hard coal, researches a strong disturbance and high-efficiency caving mechanism, develops a large volume coal flow transportation system, allocates a Four-level crushing system and memory + remote intervention caving system, etc., have created a safe and efficient intelligent fully mechanized caving face with active perception, automatic analysis, system coordination, which could provide a basic to achieve an annual output of 1.5 Mt thick seam fully mechanized caving mining.