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为控制硅锰合金冶炼电炉的操作,开发出了适合于联机应用的简化数学模型,按如下程序:(1)通过炉料条件和废气成分从原料平衡导出用于估计反应速度的公式;(2)将 MnO、FeO、SiO_2的入渣率和金属内的渗碳量作变量为操作的函数表示成公式;(3)利用上面所示的公式就可以估计金属生成速度的变化及金属的温度。在中央电气工业公司鹿岛厂2号电炉车间已利用这种模型来控制其操作,从而降低了单位电耗。
In order to control the operation of the silicon-manganese alloy smelting electric furnace, a simplified mathematical model suitable for on-line application has been developed according to the following procedure: (1) The formula for estimating the reaction rate is derived from the balance of raw materials through charge conditions and exhaust gas composition; (2) The MnO, FeO, SiO 2 into the slag and the rate of carburizing the metal as a function of the operation as a function of the formula; (3) using the formula shown above can estimate the rate of change of metal and metal temperature. This model has been used to control its operation at Kawashima Plant’s No. 2 EAF plant at Central Electric Industries Co., Ltd., thereby reducing unit power consumption.