徐州矿务局韩桥煤矿过去在半煤岩巷掘进工作面一直沿用以干打眼为主的作业方式,粉尘危害严重。为改善作业环境,该矿自1980年7月开始在夏桥井掘进二区 5个掘进头同时试验推行电煤钻湿式钻眼。经过一个阶段的试验后,初步掌握了湿式钻眼规律。现已在该矿县桥、韩桥两井半煤岩巷掘进工区全面推广、并取得了较好的防尘效果。 过去该矿也曾一度试验过电煤钻湿式钻眼,但由于水套密封性能差,漏水严重;密封圈损坏频繁且不易更换;水套进水接头与水源胶管之间的连接采用铁丝紧固,造成拆卸不便,所以工人不愿使用而未获推广。为 Hanzhou Coal Mine Xuzhou Bureau of Mining in the past in semi-coal rock face heading has been used to dry eye-based mode of operation, dust serious harm. In order to improve the working environment, the mine started excavating five excavating heads in two districts in Xiaqiao Weir at the same time since July 1980 and simultaneously carrying out pilot drilling of wet drills. After a period of testing, initially mastered the law of wet drilling. Has now been in the mine County Bridge, Han Qiao two semi-coal rock roadway work area to promote a comprehensive, and achieved good dust effect. In the past, the mine had once also experimented with the electric drill drilled wet eye, but because of the poor sealing performance of the water jacket, serious water leakage; the sealing ring was damaged frequently and was not easy to replace; the connection between the water jacket inlet connector and the water hose was fastened by wire , Causing disassembly inconvenience, so workers do not want to use without promotion. for