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我队在五八年以前,湿式凿岩都是利用小水桶分散供水,小水桶直径为0.4米,长1米,其容积为125公升,一班灌水5～6次,大大增长了輔助时間。由于小水桶容量小,供水量有限,对坑内通风防尘不能起到应有的作用,为了改善坑内作业条件,我队根据不同的情况,分别采用了不同的集中供水方法,因而在提高坑探效率方面,降低坑內矽尘方面均获得显著效果。
My team in the five or eight years ago, wet rock drilling are the use of small buckets decentralized water supply, small bucket diameter of 0.4 meters, 1 meter long, the volume of 125 liters, a group of irrigation 5 to 6 times, greatly increased the auxiliary time . Due to the small capacity of small buckets and limited water supply, ventilation and dust prevention in the pit can not play its due role. In order to improve the operating conditions in the pit, the team adopted different centralized water supply methods according to different situations. Therefore, In terms of efficiency, significant reductions in silica dust in the pit have been achieved.