The open-pit gold-silver mine project by the South African mining company is located in the Atacama Desert amongst the highest peaks of the Andes mountain range. It is 1,300km from the Chilean capital Santiago and has elevations between 4,200m and 4,900m.
ABB will deliver a common platform for process and power control using ABB Ability System 800xA, Power and Process Control Library, and Camera Connect (the ABB video system embedded in the control platform for optimized process monitoring). ABB Ability Knowledge Manager will be used to manage information production through Plant Information Management System (PIMS), alongside ABB Ability Asset Vista Condition Monitoring (integrated with SAP), an Extended Operator Workplace (EOW) as an integrated control room at the site, a collaboration table and 800xA Smart Client stations to enable read-only access to displays via a web browser.
As a common platform for the monitoring of productive, operation and support areas, ABB’s system will reduce technical risks and the number of interfaces to enable Gold Fields to unify processes at the highest level. The electrical system is fully integrated via the International Electrotechnical Commission (IEC) standard 61850, which ensures total control and visibility for the plant operations. ABB is also providing engineering and project management.
“The digital aspect is critical to this project due to its remote location – the nearest town being Diego de Almagro, 180km away, the altitude of the project and adverse weather conditions which make site access and fieldwork difficult especially during the winter,” said Max Combes, project director, Gold Fields.
“Gold Fields has developed digital infrastructure through initiatives at operations around the world. ABB’s complete solution, integrated engineering and remote operations technology will enable us to build on this digital capability and overcome the particular challenges at Salares Norte.”
The scope also includes a dynamic process simulator to allow checks on all control logics and for operator training purposes.
“The simulator will allow for shorter and more efficient start-ups on site,” said Iván Villegas, solutions manager, ABB in Chile. “It will also support the training requirements, meaning Gold Fields will have several accredited operators with the right skills for high-quality operations.”
Salares Norte is expected to produce 3.7 million ounces of gold over an initial mine life of 11 years and is estimated to be a $834m expenditure project. The operation involves drilling, blasting, loading, and hauling methods for ore extraction. It has a production capacity of two million tons per annum and the life-of-mine average recovery of gold and silver will be 92.7% and 67.5% respectively.