Influence of Mechanical Properties on the Crushing and Liberation Behaviors of Middling Coking Coal: Insights from Experiments and Molecular Simulations
Experiments and simulations reveal how minerals' mechanical properties affect coal liberation behaviors, suggesting targeted grinding methods.
Key Points
This research aims to explore the relationship between the mechanical properties of minerals and their liberation behaviors during the grinding of middling coking coal.
Conducted experiments to analyze mechanical properties and fragmentation behaviors of minerals in coking coal.
Utilized molecular simulations to determine the elastic constants and their impact on mineral size distributions post-grinding.
Observed strong anisotropy and cleavage-dominated fragmentation in coking coal with elastic constants of 79.79 GPa.
Confirmed that quartz has the highest resistance to fragmentation, followed by kaolinite, calcite, and then coal.
Demonstrated significant correlation between mechanical properties and liberation behaviors, aiding in understanding selective mineral liberation.