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首页> 外文会议>Annual Conference on Explosives and Blasting Technique >Utilising a Dual Belly Auger MPU to Manufacture Bulked Inhibited Explosives
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Utilising a Dual Belly Auger MPU to Manufacture Bulked Inhibited Explosives

机译：利用双腹部螺旋钻MPU制造膨胀抑制爆炸物

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Reactive ground is ground that undergoes a spontaneous exothermic reaction after it comes into contact with nitrates. This is commonly caused by inert rock hosting sulphide minerals, such as pyrites that act as the reagent. The presence and subsequent rate of reaction with nitrate based bulk explosives can be difficult to predict.Once identified, only explosives that are tested and proven to be compatible with the reactive ground may only be used. These typically take the form of inhibited ammonium nitrate emulsion blended with a limited volume of ANFO or porous prilled ammonium nitrate (PPAN) to ensure that all AN prills in the blend are wholly encapsulated and thus protected from the reactive ground.The requirement for high emulsion content bulk products limits the suite of products available for use to high energy, and high expense products. Further, if chemically sensitised products are used, charged holes must be left unstemmed to allow for gassing to occur, adding delay and exposing the blast crew to an unconfined charge in reactive ground.A range of inhibited products has been developed that are solid sensitised and can be bulked to as low as 0.9 g/cc (56.2 lb/ft3). The use of a solid sensitiser enables stemming to occur immediately after each hole is charged, confining any unplanned detonation more safely within the rock mass.The effective and precise manufacture of bulked inhibited products required a new and innovative Mobile Processing Unit (MPU) design. This MPU required the ability to blend two solid raw materials (AN prill & sensitiser) along with two liquid ingredients (AN emulsion and process fuel). This MPU has been designed, manufactured and has used successfully to manufacture low density inhibited explosives.This paper presents an innovative shift in inhibited bulk products with specific reference to their manufacture and application.
机译：在与硝酸盐接触后，反应性接地是在接触后经历的自发放热反应。这通常由惰性岩石托管硫化物矿物质，例如充当试剂的硫醇。与硝酸盐的批量炸药的存在和随后的反应率可能难以预测。一旦识别，只能使用测试和经证据与反应接地兼容的炸药。这些通常采用抑制硝酸铵乳液的形式与有限体积的ANFO或多孔猪氨氨铵（PPAN）共混，以确保共混物中的所有颗粒完全包封并因此保护免受反应性的影响。对高乳液含量散装产品的要求限制了可用于高能量和高费用产品的产品套件。此外，如果使用化学敏化产品，则必须将带电孔系统进行系统，以允许发生气压，增加延迟并将爆破机组暴露于反应接地中的非整合电荷。已经开发了一系列抑制产物，其是敏化的，可以膨胀至低至0.9g / cc（56.2磅/富型）。使用固体敏感剂使得能够在每个孔充电后立即发生止动，更安全地在岩体内更安全地限制任何计划生道的爆炸。膨胀的抑制产品的有效和精确制造需要一种新的和创新的移动加工单元（MPU）设计。该MPU需要能够将两种固体原料（Prill＆Sysiser）与两种液体成分（乳液和工艺燃料）混合。该MPU已经设计，制造，并成功地制造了低密度抑制爆炸物。本文介绍了抑制批量产品的创新转变，具体参考其制造和应用。

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