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在电力爆破中,发生拒爆,不但降低爆破效率,增加爆破材料的消耗,而且会使矿体破裂面不整齐,打乱掌子面的工作。在中爆破中,由于拒爆或残炮,会残留很大的底根,同时处理拒爆药包困难,而且有很大的危险。因此,消除电炮拒爆,对保证矿山安全生产,是有强大现实意义的。我厂矿山开采是采用中爆破,过去常因电雷管的拒爆而使生产受到很大的影响。通过不断摸索,现在我们基本消除了拒爆和残炮,主要由于采取了以下措施。1.在使用电力爆破时,事先对电雷管进行严格的检查。电雷管质量不良是产生拒爆原因之一。从我厂爆破事故中分析,因电雷管质量不良造成的瞎炮就占90%以上。因此,爆破前必须对电雷管进行严格的检
In the electric blasting, the occurrence of refusal explosion not only reduces the blasting efficiency, increases the consumption of blasting materials, but also causes the fracture surface of the ore body to become irregular and disrupts the work of the face. In blasting, due to refusal of blasting or remnants of guns, there will be a large amount of residual roots. At the same time, it is difficult to deal with explosives, and there is a great danger. Therefore, it is of great practical significance to eliminate the explosion of electric guns and ensure the safe production of mines. Mine blasting in our factory uses medium blasting. In the past, production was greatly affected by the detonation of electric detonators. Through continuous exploration, we have basically eliminated refusal and damage, mainly due to the following measures. 1. When using electric blasting, conduct a rigorous inspection of the electric detonator in advance. The poor quality of electric detonators is one of the reasons for the explosion. From the analysis of blasting accidents in our factory, due to the bad quality of electric detonators, mortars accounted for more than 90%. Therefore, strict inspection of electric detonators must be performed before blasting