Papers by Sebastián J Villalobos
Journal of Physics G: Nuclear and Particle Physics, 2008
XII PROCEMIN Conference, 2016
Upgrade of equipment represents a significant challenge in order to save on operational expenditu... more Upgrade of equipment represents a significant challenge in order to save on operational expenditure (OPEX) and avoid large capital expenditure (CAPEX) by adopting new technologies. This is in addition to other challenges that mining operations are already facing, including decreasing grades and increasing metallurgical complexity, highest safety standards, adverse climatic situations and hard-to-access areas. In 2014 Metso introduced a retrofit for the Symons 7' crusher to improve the control of its bowl adjustment making it equivalent to Metso's current MP and HP crusher models, eliminating the need for a bowl locking arrangement. The package is composed of new structural and hydraulic components that are fitted to existing crusher components with some modifications. It also includes a new PLC driven hydraulic power unit with Ethernet communication capabilities to allow remote operation and connectivity to the most advanced automation systems. By implementing the upgrade, Symons 7' crusher has gained full rotational control throughout the entire bowl removal and installation process. This paper presents a case study in which close coordination between the project team and the crusher plant maintenance team was crucial. The project scope included mechanical modifications and process optimisation to enable better utilisation and operation of the crusher, particularly in terms of final product size and throughput. Cooperative teamwork during the project, followed up by close monitoring of the key variables required to maintain successful equipment operation, have resulted in significant operational benefits to this operation in terms of equipment availability, a better utilization of available assets according to power consumption, and ease of operation and maintenance with a focus on safety.
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Papers by Sebastián J Villalobos