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机构地区:[1]平煤集团八矿,河南平顶山467012 [2]煤科总院重庆分院,重庆400037
出 处:《矿业安全与环保》2000年第z1期73-74,共2页Mining Safety & Environmental Protection
摘 要:简述了QFZ -22轻便防突钻机代替电煤钻机在突出综采工作面实施排放瓦斯钻孔的效果,结果表明 :使用新钻机后 ,实施措施时间减少了2/3 ,日产量增加了67 % ,工作面瓦斯超限次数大幅度降低 ,未发生一次突出。The paper makes an outline of the effectiveness of drilling gas drainage holes in a fully mechanized outburst face with QFZ-22 portable outburst-prevention drill machine instead of electric coal drill. The results show that after the use of the new drill machine, the time for taking outburst-prevention measures reduced by two-thirds, the daily output increased by 67%, the times of gas concentration in a face exceeding preset limit decreased by a big margin and no outburst occurred.
分 类 号:TD712.6[矿业工程—矿井通风与安全]
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