Drawpoint loading optimisation strategies in block caving- A case study of Palabora Mining Company
DOI:
https://doi.org/10.17159/Abstract
Palabora Mining Company is one of the largest low-grade copper mines globally. The mine uses block caving mining method for the extraction of its copper minerals from the Palabora Orebody. This paper enumerates the drawpoint loading strategies for the overall head grade improvements, particularly for a block that nears depletion. A comprehensive literature review of various considerations relating to improving productivity in block caving is studied to contextualize the draw control in caving. From this study, an optimised draw control strategy is presented, which focuses on three parameters that include grade distribution, loading compliance and tonnage splits per sector. An empirical method based on the relational study between various parameters is used to outline the key criteria to be used in the optimisation of drawpoint loading in block caving.
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