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

这一小型商业创新研究(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向其填充硝酸铵/燃料油(ANFO)混合物来产生的。然后，这些炸药被点燃，将覆盖层推入先前挖掘的壕沟中。该二期工程将完成露天矿钻孔中优先起爆药柱的起爆系统样机的设计、制造和试验，从而确保高效爆破而不释放有毒空气污染物。该项目将使一种提高露天矿抛掷爆破技术效率和环境质量的方法商业化。这种起爆系统的市场是任何涉及抛掷爆破的采矿，主要是露天煤矿行业。美国是世界煤炭生产的两大领头羊之一，2001年的煤炭产量接近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.