The 120t converter in Jigang adopts top-bottom blowing technology, and the bottom blowing system adopts LD-KGC weak stirring system feeding N_(2 )and O_(2 ) with manifold tuyere brick.

• 济钢第三炼钢厂120t转炉采用顶底复吹冶炼技术,底吹系统应用LD-KGC弱搅拌供气系统,采用集管式风口砖,氮气和氩气为底吹搅拌气体。