钢渣热闷工艺反应动力学模型的建立

Establishment of Reaction Kinetics Model of Steelmaking Slag Tank-type Hot Disintegrating Process

通过反应动力学基本原理和数学方法,结合热闷工艺过程的实际情况,建立了钢渣热闷工艺反应动力学模型,对热闷过程参数控制、热闷过程化学反应的速率及游离氧化钙和游离氧化镁的反应率进行了探讨。增强热闷池上下压力差、适当减小热闷池设计的垂直落差、增大热闷池中的料层空隙度、适当延长操作时间对热闷工艺都是有利的。

Using basic principle of reaction kinetics and mathematical method, and based on the application practice of hot slag disintegrating and self-dissolving technique, reaction kinetics model of steelmaking slag tank-type hot disintegrating process was established. The control of parameters and the chemical reaction rate in hot disintegrating process, the reactivity of free calcium oxide and free magnesium oxide were discussed. The results showed that it is favorable to increase the upper and lower pressure differential of reaction tank, or increase the gap of slag layer, or increase the operating time and or reduce the vertical drop of the hot disintegrating tank design.