论文部分内容阅读
采掘过程中,雷管拒爆所引起的误炮对安全的威协很大,同时也降低工班效率。因此如何改善矿山爆破工作条件以防止其瞎炮的问题,我们曾在某矿作过一些工作,结论叙述在资料2中。这里,我们只就电流对成组爆炸电雷管准爆的影响问题,提出一些意见:为了讨论方便,首先简述一下电雷管的发火理论。1.电桥电阻为r,通过电流为l,根据楞次焦尔定律,电流发热量等于:
During the excavation process, the false guns caused by detonators and detonators on the detonators are very powerful to the safety and reduce the work efficiency. Therefore, how to improve the working condition of mine blasting so as to prevent it from being blind, we have done some work in a mine and the conclusion is described in Document 2. Here, we only put forward some opinions on the impact of current on the quasi-explosion of a group of explosive electric detonators. For the sake of discussion, we first briefly describe the theory of ignition of electric detonators. 1. Bridge resistance r, through the current l, according to Lenz Joule’s law, the current heat is equal to: