The mine in Kiruna

One of Swedish industry’s biggest investments

The mine in Kiruna is the biggest underground iron ore mining operation in the world. Thanks to innovative and production-increasing technical solutions, it is also widely known as one of the most modern. LKAB recently made the biggest investment in its 115 year history, covering measures in the mine itself and the existing sorting works.

The investment also saw the introduction of a new enrichment and pellet works, which is where Rejlers was involved. LKAB built the new works behind the Kirunavara mountain, adjacent to the existing refinery. The enormous facility covers a roof space of just over 4 hectares (six football pitches) and approximately 7.5 hectares (10 football pitches) of outer walls. It is estimated that the pellet works will produce just over two million tonnes of pellets during its first year of operation, four million tonnes during the second year and then five million tonnes per year thereafter.

Over the course of one year, a total of nine Rejlers engineers were involved in the project. Rejlers was tasked with programming and commissioning a control and monitoring system (DCS system) and commissioning power and instrumentation equipment at the process facility.