This paper introduces the function, structure and alarm principles of the breakout prediction system installed for continuous casting in Baosteel＇ s No. 2 Steelmaking Plant. It elaborates on four parameters in the al...This paper introduces the function, structure and alarm principles of the breakout prediction system installed for continuous casting in Baosteel＇ s No. 2 Steelmaking Plant. It elaborates on four parameters in the alarm logic,including the temperature changing rate, temperature difference, temperature fluctuation and temperature match of thermocouples. This paper also explains the causes of different disturbances within the breakout prediction system, and the methods used to prevent and eliminate disturbances from radiation, earth, crosstalk, temperature drift and time drift. Finally, the paper summarizes some potential applications of the above technology.展开更多
A two-dimensional heat transfer model was developed to calculate the mould wall temperature field under normal operations condition and to determine its changing behavior when breakout occured. On the numerical simula...A two-dimensional heat transfer model was developed to calculate the mould wall temperature field under normal operations condition and to determine its changing behavior when breakout occured. On the numerical simulation of sticking type breakout process and the breakout related wall temperature evolution, parameters of prediction were suggested.展开更多
Breakout prediction is one of the important techniques of continuous casting. The software and hardware of the breakout prediction system have been upgraded and revamped time after time since slab casters were put int...Breakout prediction is one of the important techniques of continuous casting. The software and hardware of the breakout prediction system have been upgraded and revamped time after time since slab casters were put into operation at Baosteel, and its performance and technical indexes have been improved remarkably. This paper reviews the development of the breakout prediction technique of the No. 1 Steelmaking Plant at Baosteel. The newly developed BBPS ^Ⅱ is introduced, and the mould mapping system of the No. 4 slab caster is described. The breakout prediction technique is playing an important role in increasing production capability, improving slab quality and decreasing breakout events.展开更多
文摘This paper introduces the function, structure and alarm principles of the breakout prediction system installed for continuous casting in Baosteel＇ s No. 2 Steelmaking Plant. It elaborates on four parameters in the alarm logic,including the temperature changing rate, temperature difference, temperature fluctuation and temperature match of thermocouples. This paper also explains the causes of different disturbances within the breakout prediction system, and the methods used to prevent and eliminate disturbances from radiation, earth, crosstalk, temperature drift and time drift. Finally, the paper summarizes some potential applications of the above technology.
文摘A two-dimensional heat transfer model was developed to calculate the mould wall temperature field under normal operations condition and to determine its changing behavior when breakout occured. On the numerical simulation of sticking type breakout process and the breakout related wall temperature evolution, parameters of prediction were suggested.
文摘Breakout prediction is one of the important techniques of continuous casting. The software and hardware of the breakout prediction system have been upgraded and revamped time after time since slab casters were put into operation at Baosteel, and its performance and technical indexes have been improved remarkably. This paper reviews the development of the breakout prediction technique of the No. 1 Steelmaking Plant at Baosteel. The newly developed BBPS ^Ⅱ is introduced, and the mould mapping system of the No. 4 slab caster is described. The breakout prediction technique is playing an important role in increasing production capability, improving slab quality and decreasing breakout events.
