Mining enterprises are widely introducing digital technologies and automation is one of such tools. Granularity monitoring, namely, the size determination rock mass pieces a common operational component processes that extract minerals by open-pit mining. The article proposes an approach that, in addition to lump distribution, makes it possible estimate form distribution as well. To investigate ...

The impact-induced fragmentation of rock blocks is frequently encountered when the natural hazards (e.g., rockfalls, rockslides, and avalanches) occur in mountainous areas. To address progressive damage cracking characteristics upon impacting, this paper presents a three-dimensional finite-discrete method (3D-FDEM) study on complex process rock. influences impact velocity dynamic process, evolu...

Button cutters are commonly used in hard rock drilling because the inserted carbide buttons provide exceptional wear resistance, impact and high strength challenging geological formations. One of most pressing issues designing a button cutter is to study breaking mechanisms buttons. In this study, three-dimensional discrete element method (DEM) was employed investigate mechanism cutting perform...

When using the explicit dynamic relaxation approach (DRA) to model quasi-static rock breakage, fragmentation, and flow problems, especially top-coal caving question, introducing numerical damping into solution equation is inevitable for reducing vibration frequency impact speed of mesh nodes, which significantly affect fidelity computation results. Although DRA has been widely adopted simulate ...

The use of blasting cost (BC) prediction to achieve optimal fragmentation is necessary in order to control the adverse consequences of blasting such as fly rock, ground vibration, and air blast in open-pit mines. In this research work, BC is predicted through collecting 146 blasting data from six limestone mines in Iran using the artificial neural networks (ANNs), gene expression programming (G...

The worldwide mining industry consumes a vast amount of energy in reduction fragment size from to mineral processing with an extremely low-energy efficiency, particularly ore crushing and grinding. Regarding such situation, this article describes the effects rock fragmentation by blasting on consumption, productivity, minerals’ recovery, operational costs whole chain processing, sustainability ...