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沁水煤田的无烟煤主要用于化工业的造气 ,对块煤的需求量较大 ,而末煤的销路越来越小 ,价格也越来越低。近几年 ,晋城无烟煤矿业集团公司在提高块煤产率方面采取了许多措施 ,并且取得了明显的效果 ,从目前的生产状况看 ,要想再提高块煤产率就必须在综采工作面放震动炮预裂煤体。而爆破参数的选取又直接影响爆破的效果。凤凰山矿为了选取放震动炮的参数 ,在 2 32 2上层综采工作面进行了多次试验 ,找到了适合该矿在上层综采工作面放震动炮的参数。
Anthracite coal Qinshui coal is mainly used for chemical industry gas, the demand for lump coal larger, and the end of the coal sales smaller and smaller, the price is getting lower and lower. In recent years, Jincheng Anthracite Mining Group Co., Ltd. has taken many measures to improve lump coal production rate and has achieved remarkable results. From the current production conditions, in order to increase lump coal production rate, Put shocked artillery pre-cracking coal. The selection of blasting parameters directly affect the blasting effect. Fenghuangshan Mine has conducted several tests on 2 32 2 upper fully mechanized coal mining face in order to select the parameter of the vibration-activated gun, and found the parameters suitable for putting the vibration artillery on the upper fully mechanized coal mining face.