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Following the compromised integrity of BolidenBoliden Harjavalta’s NickelNickel Electric FurnaceElectric furnace (NiEF) in 2019, Hatch was awarded the project to redesign the furnace crucible (including structural steel, refractoryRefractory, and coolers) with a focus on operational safety and improved reliability of the crucible. The key features of the custom-designed furnace include robust cast-in-pipe cooling, vertical binding system with online load monitoring, and roof components facilitating ease-of-maintenance, combined with maximizing the available footprint in the existing smelter building to facilitate the planned increase in productionProductions. The new NiEF was rebuilt and started up in late 2021 as part of smelter upgradesUpgrade to produce reduced carbon footprintCarbon footprint nickelNickel and facilitate higher throughput. BolidenBoliden and Hatch teams continued to work together following startup to ensure the performance and reliability of the equipment met the availability requirement of the Flash SmeltingFlash smelting Furnace upstream. Hatch provided ongoing monitoring of equipment condition with data-driven analysis and projections to support timely decisions regarding operational risks and campaign lifeCampaign life. BolidenBoliden and Hatch were able to improve operations through implementation of automated matteMatte tapping, improved process stability, and transitioned to condition-based maintenanceCondition-based maintenance practices. The data collected throughout the campaign along with updated operation and maintenance practices were utilized to support the planned 2025 furnace reline while minimizing risk and downtime.

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Redesign and Transition to Condition-Based Maintenance of Reduced Carbon Footprint Nickel Slag Cleaning Furnace at Boliden Harjavalta

  • 会议论文

  • 发表日期：

    2025年

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  • Michael Nagorski,
  • Anastasiya Mitsui,
  • Mike Mosnier,
  • Tommi Veneranta

摘要

Following the compromised integrity of BolidenBoliden Harjavalta’s NickelNickel Electric FurnaceElectric furnace (NiEF) in 2019, Hatch was awarded the project to redesign the furnace crucible (including structural steel, refractoryRefractory, and coolers) with a focus on operational safety and improved reliability of the crucible. The key features of the custom-designed furnace include robust cast-in-pipe cooling, vertical binding system with online load monitoring, and roof components facilitating ease-of-maintenance, combined with maximizing the available footprint in the existing smelter building to facilitate the planned increase in productionProductions. The new NiEF was rebuilt and started up in late 2021 as part of smelter upgradesUpgrade to produce reduced carbon footprintCarbon footprint nickelNickel and facilitate higher throughput. BolidenBoliden and Hatch teams continued to work together following startup to ensure the performance and reliability of the equipment met the availability requirement of the Flash SmeltingFlash smelting Furnace upstream. Hatch provided ongoing monitoring of equipment condition with data-driven analysis and projections to support timely decisions regarding operational risks and campaign lifeCampaign life. BolidenBoliden and Hatch were able to improve operations through implementation of automated matteMatte tapping, improved process stability, and transitioned to condition-based maintenanceCondition-based maintenance practices. The data collected throughout the campaign along with updated operation and maintenance practices were utilized to support the planned 2025 furnace reline while minimizing risk and downtime.