Application and development of technologies of slag amount control from converter to ladle in Shougang Group

Technological level for slag amount control from converter to ladle have been improved to some extent by revamp of the equipments and innovation of technologies in Hebei Shougang Qian'an Iron Steel Co., Ltd. For those low carbon steel grades used in automobile sheets up to date the thickness of the slag layer in the ladle can be controlled within an average of 33.7 mm and the slag amount to ladle from converter be controlled in a mean value of 4.8 kg/t. Besides, a rise of T.Fe content in the end point converter slag and absence of usage of slag detective and measurement devices may cause an increase of slag amount to the ladle.