Comminution processes are one of the most common for processing energy materials, e.g. coal, biomass, and post-recycling elements. The hitherto unsolved problem is high consumption machines lack precise descriptions phenomenon comminution in terms relationship between design features mills properties comminuted materials. dynamic development simulation techniques based on advanced models method...

To respond to the increased demand for commodities, volumes of primary ores need be mined. This could lead major challenges with water and tailings management since ore grades are low many mining operations take place in high stress areas. The current mineral processing methods used highly intensive and, consequently, there is increasing interest finding alternative solutions produce raw materi...

the equations governing the motion of steel balls and their impact onto shell liners in industrial semi-autogenous grinding (sag) mills are derived in full details by the authors and are used in order to determine the effective design variables for optimizing the working conditions of the mill and to avoid severe impacts which lead to the breakage of sag mill shell liners. these design variable...

With the aim of revealing effects low temperature on vibration impact comminution performance wheat bran, dynamic bran at different temperatures was simulated by using LS-DYNA. According to collision relationship between grinding medium and a three-component numerical calculation model established. The essence analyzed, solution method based LS-DYNA proposed. On this basis, finite element obtai...

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 veloc...

Confined bed comminution in high-pressure grinding rollers (HPGRs) and vertical roller mills (VRMs) was previously used preferably for comparably homogeneous materials such as coal or clinker. Meanwhile, it started to complement even replace tumbling ore beneficiation with gangue particles of rather different breakage behaviors. The selectivity the a mixture strengths but similar particle size ...