新型空气间隔器的研发与试验研究
Research & development and experimental study on new type air-spacer

为满足矿山回采爆破需要，急需研发一款使用效果良好且价格低廉的新型炮孔装药空气间隔器.针对90、110、160mm三种直径的炮孔进行室内实验，得到空气间隔器随炮孔直径和装填高度变化的受力规律. 在此基础上，优化设计出一种科学合理的炮孔空气间隔器，并用于紫金山金铜矿地下采场的爆破工业试验. 试验中，空气间隔器使用方便，爆破效果良好，爆破成本大幅度降低. 研究表明： 通过实验设计得到的空气间隔器是合理的，对同类研究具有重要的理论和实践参考价值.
In order to meet the needs of mining blasting，it is necessary to develop a new type of high proficiency and lower cost air-spacer. for this purpose，some laboratory experiments were carried out for three specific kind of holes，with the diameter of 90mm，110mm and 160mm，respectively. As result，the force law of the air-spacer，with the diameter of the hole and the filling height was obtained. A highly responsible scientific blasting hole air-spacer was designed on this basis，and was used at the Zijin Shan Gold-copper Mine for the blasting industry experiment. In the experiment，the air-spacer was convenient to use，the blasting effect was good and the blasting cost was greatly reduced. The results show that the air-spacer obtained by experimental design is reasonable，and has both important theoretical and practical reference values to the similar research