Rectifying a traveling grate after years of operation by replacing key components and re-aligning the complete mechanical system is a very complex task.
We were able to support our customer Vale with prompt technical expertise during the shutdown of the Nibrasco pellet plant to renovate the traveling grate to its original condition and to keep the tight shutdown schedule.
About the mine/customer
The relationship between Outotec and Vale dates back to the expansion of Vale’s iron ore business from pure ore supply to the production and shipment of iron ore pellets. In 1966, the company inaugurated in Espírito Santo, Brazil the Port of Tubarão, which is still Vale’s most important port. In the same year, the construction of the first pelletizing in Brazil started.
Outotec and it’s former acquisitions have been involved in the design and delivery of all 11 Vale pelletizing plants in Brazil. In recent years we designed the pellet plant in São Luis (at this time with its indurating machine of 768 m² and 6 Mtpy capacity the largest plant in the world) and delivered the pellet plant of Vargem Grande in Minas Gerais. We also provided complete engineering for the latest of the 8 pellet plants in Tubarão.
We have a service and competence center situated close to the site in Tubarão, we supplied Vale with technical services, maintenance and shut-down support for the pelletizing plants, as well as for the grinding and filtration areas over the last couple of years.
Over the past 2 years, we have executed 18 large service projects under a framework agreement during shutdowns. These projects have included 120,000 man-hours at the site and fulfilling Vale’s highest safety requirements with the important KPIs TRIR (Total Recordable Incident Rate), LTIR (Lost Time Injury Rate) and FAC (First Aid Cases), where we have achieved zero rates under all three safety KPI’s.