Research Progress of Electromagnetic Slag Removal Technology Applied in Zinc Pot of Hot Dip Galvanizing Line

Author of the article:XIAO Yubao, GUO Qingtao, PAN Dong, LI Yuting

Author's Workplace：Iron and Steel Research Institute, Ansteel Beijing Research Institute Co., Ltd., Beijing 102211, China

Key Words：Zinc slag; electromagnetic slag removal; electromagnetic force; electromagnetic field

Abstract：In the production process of hot dip galvanizing line, zinc slag adheres to the surface of strip steel with the flow
of molten zinc or the rotation of roller, forming zinc slag defects, which seriously affects the surface quality of galvanized
products. Zinc slag adhesion to zinc crucible equipment will affect the stable operation of equipment. Effective control or
removal of zinc slag formed on the surface of zinc crucible is an urgent problem to be solved in hot dip galvanizing. In the
process of production, it is necessary to remove zinc slag from different operation parts of zinc crucible in time, and the
operation space and galvanizing technology increase the difficulty of slag removal. The smooth progress of hot dip
galvanizing production and the improvement of product quality demand efficient, clean and safe slag removal process and
technology. With the development of electromagnetic technology in hot dip galvanizing, electromagnetic slag removal
technology has become mature. In this paper, the main progress of electromagnetic slag removal technology is reviewed, its
application characteristics and shortcomings are analyzed, and the future application of this technology is forecasted.