SBIR Phase II: Innovative Blasting to Eliminate Nitrogen Dioxide Formation While Maximizing Energy Efficiency in Surface Mining

这个小型企业创新研究（SBIR）第二阶段项目解决了改善爆炸化学反应控制的迫切需要。 这些爆炸是通过在覆盖层中钻孔并填充硝酸铵/燃料油（ANFO）混合物而产生的。 然后点燃这些炸药，将覆盖层推入先前挖掘的沟槽中。 第二阶段项目将完成原型引爆系统的设计、制造和测试，该原型引爆系统将部署在露天采矿钻孔中，以优先引发火药柱的引爆，从而确保高效的爆破，而不会释放有害的空气污染物。该项目将导致一种提高表面所用的抛掷爆破技术的效率和环境质量的方法的商业化。挖掘 这种爆炸系统的市场是任何涉及铸造爆破的采矿业，主要是露天煤矿业。 美国是世界上两个煤炭生产大国之一，2001年煤炭产量近10亿吨。

This Small Buisness Innovation Research (SBIR) Phase II project addresses the urgent need to improve control of the blast chemical reaction. These blasts are produced by drilling boreholes into the overburden and filling them with an ammonium nitrate/fuel oil (ANFO) mixture. These explosive charges are then ignited to push the overburden into a previously excavated trench. This Phase II project will complete the design, fabrication, and testing of a prototype detonation system to be deployed in surface mining boreholes to preferentially initiate detonation of the powder column, thus insuring a high efficiency blast without the unwanted release of toxic air pollutants.This project will lead to commercialization of a method of improving the efficiency and environmental quality of the cast blasting technique used by the surface mining. The market for this detonation system is any mining that involves cast blasting, primarily the surface coal mining industry. The United States is one of the two world leaders in coal production with nearly one billion tons of coal being produced in 2001.