Automatic Control of Hot Metal Temperature of Blast Furnace
Automatic Control of Hot Metal Temperature of Blast Furnace
复制标题
高炉铁水温度自动控制
DOI：
10.2355/isijinternational1966.22.534
复制
发表时间：
1981
影响因子：
1.8
通讯作者：
Toshimitsu Miyagi
中科院分区：
文献类型：
--
作者：
M. Hatano;Y. Matoba;K. Otsuka;Michiyasu Yoshiki;Toshimitsu Miyagi
为实现铁水温度的自动控制，在文中介绍的高炉数学模型的基础上，开发了一种先进的计算机控制系统。该系统的特点是：(1)通过对实际运行数据的自适应反馈预先调整模型参数。(2)通过模型对过程的正演模拟，对铁水温度进行了预测。(3)控制所需的喷油量是由预测铁水温度与目标温度之差得出的。通过仿真验证了该系统的控制特性，证实了该系统对高炉稳定运行的有效性。该系统自1977年起在小仓2号高炉实现了自动控制，降低了铁水温度波动和硅含量波动。由于控制了加热条件，铁水温度降低了15℃，燃料比降低了4 kg/t猪。
Synopsis: For the automatic control of hot metal temperature, an advanced computer control system was devel oped on the basis of the new mathematical model of blast furnace described in the other paper. The characteristic features of the system are as follows: (1) The parameters of the model are adjusted in advance by the adaptive feedback of actual operational data. (2) Through the forward simulation of the process by the model, the hot metal temperature is predicted. (3) The oil injection rate required for the control is derived from the difference between the predicted hot metal temperature and the aimed one. By examining the control characteristics of the system through the simulation, it is confirmed that the system is effective for the stable blast furnace operation. With this system, the automatic control has been carried out at Kokura No. 2 BF since 1977 and the fluctuations of the hot metal temperature and the silicon content have been decreased. As the result of the control of the thermal condition, the hot metal temperature could be lowered by 15°C, which contributed to the decrease of fuel ratio by 4 kg/t-pig.