In order to study the safety performance of aluminum-containing mixed explosive slurry during the granulation process

the friction sensitivity tests of aluminum-containing mixed explosive slurry were designed

considering the aluminum-containing mixed explosive slurry during the granulation process was under the compression-shear load. The ignition probability distribution characteristics were analyzed. As the ignition threshold

the shear power density of the aluminum-containing mixed explosive slurry under the compression shear condition was determined to be 74607W/m2. The granulation process was decomposed into two critical stages

mixing and extrusion. By ANSYS POLYFLOW simulation software

the distribution of the flow velocity

shear stress and shear power density was discussed. Also

the effect of the viscosity change on the material response was analyzed. The results showed that the safety of the stirring process is lower than that of the extrusion process. It is because that the shear power density is determined by both the external load and the flow velocity

rather than a single factor. The safe threshold of the stirring rate in the granulation process is 52r/min.