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在煤巷和半煤岩巷掘进实行湿式钻孔,目前尚无较先进的钻眼工具。《煤矿安全》1981年第7期介绍了北京矿务局城子煤矿“煤电钻湿式钻孔”一文非常适时,颇受欢迎。全国各地煤矿都在推广应用。我局两渡煤矿曾学习城子矿煤电钻侧式供水装置的经验进行了试用推广。经过一个阶段的使用,在实践中发现尚有不足之处,结合其具体情况,进行了改进,特介绍如下,供参考。
In the coal lane and semi-coal rock roadway wet drilling, there is no more advanced drilling tools. “Coal Mine Safety” 1981 the seventh period introduced the Beijing Mining Bureau Chengzi coal mine “coal drill wet drilling” article is very timely, popular. All over the country are promoting the use of coal mines. I Bureau Shuangdu coal mine had learned Chengzi mine coal electric drill side of the experience of water supply device was trial promotion. After a period of use, found in practice there are still inadequacies, combined with their specific circumstances, made improvements, especially introduced as follows, for reference.