常化炉燃烧控制系统改造

Revamping of the normalizing furnace's burner control system

为了实现中厚板160℃低温回火,对中厚板厂1号常化炉的燃烧控制系统进行改造。通过对燃烧控制器的硬件线路改造,实现了常化炉在不同加热模式下,不同直径的煤气管路自动切换,同时确保燃烧系统的稳定以及安全性。烧嘴燃烧时间优化后较原来固定开关周期的控制方式,在系统响应速度以及精度上都有很大提升。改造后,常化炉可以应用于低温回火的生产。

To realize the heavy plate tempering at low temperature,i.e.at 160 ℃,No.1normalizing furnace＇s burner control system had been revamped in the heavy plate plant.Through the revamping of the electric circuit of the burner control unit,the gas pipes with different diameters can be switched automatically according to the different heating mode,and the stability and security of the burner control has been ensured.Comparing to the control mode with the fixed switching cycle,the responding speed and precision of the control system has been improved dramatically after optimizing the burner switching time.The furnace can be applied for the low temperature tempering.