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重钢綦江铁矿从六六年开始对水封爆破进行试验,抑尘效果可以达到60-70%。水封爆破的具体做法是:先在打好的炮眼中装好炸药,然后再装填1-2个充满水的塑料袋。爆破时,水封被炸而形成细雾,使粉尘湿润,起到加速降尘作用,且有毒气体也随之有所减少。70年7月,平峒车间采矿201队和掘进203队,继续进行水封爆破试验,收到一定效果,其中采矿201队试验达到的
Chongqing Iron and Steel Iron River iron ore from 66 years on the water seal burst test, the dust suppression effect can reach 60-70%. The specific practice of water seal blasting is: first lay the explosives in the blasthole, and then filled with 1-2 filled plastic bags of water. Blasting, the water seal was blown to form a fine mist, the dust wet, play a role in accelerating dust, and toxic gases also will be reduced. In July of 1970, the 201 teams of mining and mining of 203 units in Pingtung workshop continued to carry out the water seal burst test and received some results, of which the 201 sets of tests by the mining team reached