SAF - ferro silicon and siliconSpecial metallurgy and silicon
As a rule, silicon production units utilize prebaked electrodes. To reduce operating costs, we also supply special composite electrode systems for silicon production. Always looking for improvements, SMS group has continually optimized its silicon-based furnaces over the years. The process requires a rotating gear and ideally a 25 - 60 MVA transformer.
What's especially important for safe and reliable operation are the design and quality of the rotating gear, furnace hood, hood curtain/hood doors, the furnace itself, as well as the electrode column.
In July 2011, we landed an order from Posco in South Korea for two 37.5 MVA FeSi furnaces to produce high-purity FeSi. They are equipped with a rotating gear so our customer will also be able to produce Si-metal on them at a later stage. The furnaces were commissioned in 2013.
Also available from SMS group are custom furnace solutions for special alloys such as FeW, FeV, FeTa, FeNb, CaSi, and SiCr.
CBMM (Companhia Brasileira de Metalurgia e Mineração), the leading producer of FeNb, contracted SMS in 2014 to supply a de-phosphorization furnace for Nb2O5 slag. Our customer aims to significantly boost output of FeNb at its location in Araxá, Brazil. Commissioning is planned for 2016/2017. Once in operation, the new submerged-arc furnace will produce refined FeNb concentrate, which is the raw material for FeNb. It's no surprise that CBMM chose SMS again after receiving smelters from us back in 1993, 1999, and 2004.