Primetals Technologies wins order from HBIS Group for upgrading BOF converter to KOBM converter

In August 2020, Primetals Technologies received an order from HBIS Group Handan Iron and Steel to upgrade an existing BOF converter in the steel plant in Handan, China, to a KOBM (“Kombinierter Oxygen Blown Bottom Maxhütte”) converter including the complete automation system. Compared to a BOF converter, the combined blowing from top and bottom in a KOBM converter results in a better bath mixing, and metallurgical reactions are closer to the equilibrium. In addition, lime injection ensures fast slag formation and excellent process and slopping control. Therefore, HBIS Group expects to shorten the blowing process, to lower the carbon-oxygen equilibrium of the steel at tapping, improve the yield by lowering slag amount and iron oxide content in the slag, and to produce cleaner steel with minimum inclusions and impurities. This improved steel quality especially fits requirements from automotive industry. Furthermore, the new converter shall save ladle additions during tapping as well as costs for lime additions.

Read more at Primetals Technologies wins order from HBIS Group for upgrading BOF converter to KOBM converter.

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