Experimental Study on the Initiated Reliability of Nonel Tube by Industrial Detonator

摘要

Non-electrical initiation system has been widely applied in blasting projects. So how to keep the safety and reliability of industrial detonators initiating the nonel tubes becomes very important The article carried out the simulation experiment of the nonel tubes initiated by industrial detonators of series 8. The experiment investigated the initiating probability under the condition of the front and back shooting methods and under the condition of different enlacing forces. Also, the reliability distance of initiating the nonel tubes and the safety distance of not destroying the nonel tubes were put forward. The experimental results showed that: (1) the initiating probability revealed a small difference when applying the front or back shooting methods. But the front shooting method may exit the thing that the metal jet and detonator flyer cut off the nonel tubes; (2) the bigger enlacing force of the nonel tubes was, the bigger number of effective initiating nonel tubes was, that is to say, the initiating probability is higher; (3) the reliability distance of the detonators initiated the nonel tubes was less than lcm, and the safety distance of the detonators not destroying the nonel tubes was higher than 9cm. The experimental results and analyses in this article can be regarded as a reference for analyzing the safety and reliability of non-electrical initiation system.