For the sake of realization of on-site mixing powdery low detonation velocity ammonium nitrate fuel oil (ANFO)explosive used for explosion welding,a new type of powdery ANFO site-mixing truck was developed.It adopted rotating bin design,changed the original static discharge to dynamic discharge,and has solved the arching problem of tradi-tional ANFO mixing-loading truck material.The detonation velocity of the powder ANFO explosive is 1800-2500 m/s and the production speed is 200-300 kg/min,which meet the use requirement of explosion welding.The truck is able to pro-duce not only powdered but also porous granular ANFO explosives.%为实现爆炸焊接用低爆速粉状铵油炸药的现场混装，研制出一种新型粉状铵油炸药车。该车采用旋转料仓设计，将原有的静态出料改为动态出料，解决了传统铵油车存在的料仓起拱问题。所生产的粉状铵油炸药爆速1800～2500 m/s，生产速度200～300kg/min，满足了爆炸焊接用药的使用要求。该车不仅能够生产粉状铵油炸药，而且可以生产多孔粒状铵油炸药。
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