Maintenance-free converter suspension ensures long useful life
New blowing lance geometry and Vaicon slag stopper improve steel quality
New refractory concept will ensure long converter lining campaign
In September, the last of three LD (BOF) converters supplied by Primetals Technologies commenced operation at the Raahe, Finland works of SSAB Europe Oy. The first converter was started up in October 2015, the second one in May 2016. With almost unchanged space requirements, the new converters have a larger reaction volume. The maintenance-free Vaicon Link 2.0, which will be used as the converter suspension, minimizes stress caused by heat-induced deformation and has a longer useful life. A blowing lance tip geometry adjusted to the new converter geometry, bottom stirring and a slag stopper improve the metallurgical properties of the steel produced. A new refractory concept will ensure long converter lining campaign.