Scope
In 2020, KNS initiated a transformation project to push the production and reliability of the facility closer toward nameplate capacity. QGE was initially engaged at this time to assist with an instrument re-commissioning project on Line 2. Evidence pointed to a lot of issues with the original commissioning of the facility, poorly executed or incomplete. Three engineers and one instrument technician were part of the original team involved in the Line 2 recommissioning project.
During this work, additional project scopes were identified, and this resulted in QGE being engaged for two additional projects:
- By the utilities team in a project to upgrade the coal plant control system
- The control system stability project that formed a pillar of the KNS transformation initiative
Background
The KNS Koniambo Nickel mine consists of a mine on the mountaintops near to the town of Kone, and a processing plant 15 km away, on the coastline. The processing plant comprises a power station, coal plant, and two crushing, drying and smelting lines. The site was initially commissioned and commenced production in 2013, however since this time it has never reached nameplate production, and usually operates below half of the stated capacity of 60,000 tpa. QGE were engaged to assist with bringing the site production up to nameplate rating.
All this work was undertaken within the context of the COVID-19 pandemic and restrictions on international travel, thus all staff involved in the project were required to commit to 3-month+ stints away from home, including quarantine.
Outcomes
Using a recognised, standardised commissioning approach, QGE were able to work with KNS employees and local contractors to achieve the goal of recommissioning approximately 1,300 instruments during the line 2 shutdown window. In addition to completing the required scope within timeframe provided, the exercise also provided an ongoing opportunity to work with the KNS engineers and technicians to provide skills uplift, and guidance in a measured approach to achieving the task.
A number of latent commissioning issues were discovered and rectified, and several new instrument scopes identified for future works, and fed into the control system stability work.
The ongoing presence of QGE I&E technicians and engineers in the maintenance team have provided continuous support for the site’s operation, a skills uplift to the KNS team, and addressed some key reliability problems.