Optimization of the Classifying Efficiency of Spiral Jet Mills by Investigating the Flow Conditions and the Grinding Performance

Abstract The achievable grinding fineness of spiral jet mills does not only depend on the comminution efficiency in region nozzle jets but is also significantly affected by separation product outlet. Therefore, aim this study to investigate influences outlet diameter and different particle trap rings flow conditions performance, optimizing classifying mills. velocity fields analyzed image velocimetry experimental results show that classification process can be optimized both reducing installing a ring.