| Continuous casting is a process of liquid steel continuous cast into solid billet.Continuous casting equipment construction is complex.Industrial field environment is dangerous.With the development of iron and steel industry,the requirement of safety production,energy saving,product quality and so on is increasing.At the same time,new demand in the teaching and simulation of continuous casting process is also put forward.Virtual reality technology and slab continuous casting process are combined to construct the virtual interactive system of continuous casting.Through the 3D modeling software and the virtual reality engine,the virtual scene and the virtual equipment of the continuous casting shop were built.The research designed control panel and control interface based on the actual control mode of steel plant.The user can control the virtual device through the control panel or the external PLC,and realize the virtual interaction.In addition,the system is added the explaining of continuous casting process and equipment,improve the practicality of teaching simulation.On the basis of this,the temperature control and simulation of the secondary cooling zone of continuous casting are mainly studied.The heat transfer mathematical model of slab solidification process is established,and the temperature distribution of the slab is obtained by numerical simulation.In order to make the casting billet temperature distribution meet the metallurgical criteria and to seek the best cooling water distribution ratio,the improved chaos genetic algorithm is introduced.And the fitness function and the constraint conditions are designed.Simulation experiment was carried out to study the slab continuous casting process in a steel plant,and the effectiveness of the algorithm was verified.The virtual interactive system designed for continuous casting provides a closed loop interactive operation and control solution for the training of continuous casting links in schools or enterprises.The optimization algorithm for the cooling process of the secondary cooling zone also provides an effective cooling water allocation method for the actual production process. |