Effect of process factors oxygen supply rate and lance level on bath stirring

spitting and penetrating depth for 300 t converter melting has been simulated and studied by 1 • 13 water model. The water model test results showed that as Fr was controlled within 113. 1 and lance level was maintained at 0. 167 m (corresponding 300 t converter lance level 2. 17 m)

mixing time of bath reduced

spitting decreased during blowing

and better bath stirring effect was got with shallow penetrating depth to be available to decrease impact strength on furnace bottom.