Simulation to Coating Weight Control for Galvanizing
Zinc coating weight control is one of the most critical issues for continuous galvanizing line.The process has the characteristic of variable-time large time delay,nonlinear,multivariable.It can result in seriously coating weight error and non-uniform coating.We develop a control system,which can automatically control the air knives pressure and its position to give a constant and uniform zinc coating,in accordance with customer-order specification through an auto-adaptive empirical model-based feed forward adaptive controller,and two model-free adaptive feedback controllers.The proposed models with controller were applied to continuous galvanizing line (CGL) at Angang Steel Works.By the production results,the precise and stability of the control model reduces over-coating weight and improves coating uniform.The product for this hot dip galvanizing line does not only satisfy the customers quality requirement but also save the zinc consumption.
Continuous Galvanizing Line Coating Weight Control Air Knives Adaptive Model Model-free Adaptive
Wang Junsheng Yan Zhang Wu Kunkui Song Lei
AnSteel Technology Centre.,Anshan 114021,P.R.China University of Science and Technology LiaoNing,Anshan 114000,P.R.China
国际会议
沈阳
英文
767-773
2013-07-06（万方平台首次上网日期，不代表论文的发表时间）