引射式钢包烘烤器自动控制系统的设计及应用

Design and Application of Automatic Control System for Ejector Ladle Roaster

介绍了引射式燃烧技术的工作原理,蓄热式钢包烘烤器与引射式钢包烘烤器的区别。阐述了引射式钢包烘烤器系统结构、钢包温度的控制策略及软硬件的设计,其中烘烤器的控温过程采用时间比例积分控制方法,即先在系统中设定最佳升温过程,运行中通过PLC控制系统调节比例阀开度的大小,使钢包温度符合最佳升温过程,确保控温速度快,精度高,实现钢包的实时在线烘烤。结果表明,控制系统工作稳定,节能量显著提高。

The working principle of ejector combustion technology and the difference between regenerative ladle roaster and ejector ladle roaster were introduced.The structure of ejecting ladle toaster system,the control strategy of ladle temperature and the design of hardware and software were described.The temperature control process of the oven adopts the time proportional integral control method,that was,the optimal heating process was first set in the system.In operation,the size of proportional valve opening can be adjusted by the PLC control system to make the temperature of the ladle conform to the optimal heating process,so as to ensure the temperature control speed was fast and the precision was high and realize the real-time online baking of the ladle.The results show that the control system works stably and the energy saving is increased obviously.