Research on Spray Granulation of Delay Explosive

Abstract In view of the problems existing in the delay explosive granulation, a spray granulation technique was proposed. By spray granulation with Wolfram type delay explosive, the influence of safety related factors such as temperature and moisture on granulation was studied. SEM was used to analyze the morphology of the samples. Results demonstrate that the particles of the delay composition were spheres with diameter of 100-400 µm. A hollow ball is formed due to the rapid evaporation of water. The sample has good dispersibility and the moisture content is 4.42%.