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首页> 外文会议>International Congress on Mineral Processing and Extractive Metallurgy 11 - 13 September 2000 Melbourne, Victoria >Viscosity Model in the Al_2O_3-CaO-'FeO'-SiO_2 System
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Viscosity Model in the Al_2O_3-CaO-'FeO'-SiO_2 System

机译：Al_2O_3-CaO-“ FeO ”-SiO_2系统的粘度模型

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摘要

A viscosity model has been developed for both compleetely liquid and heterogeneous, partly crystallised slags in the Al_2O_3-CaO-"FeO"-SiO_2 system in equilibrium with metallic iron. THe Urbain formalism has been modified to describe the viscosities of the liquid slag phase over the complete range of compositions and a wide range of temperatures. The Roscoe equation has been used to describe the effect of presence of solid suspension (slurry effect) opn the viscosity. The parameters of the viscosity model were optimised to describe large experimental data set in the low-order subsystems, as well as in the multi-component systems. The computer package FACT was used for prediction of the proportion of solids and the composition of the remaining liquid phase. The model provides a good description o f the experimental data (over four thousand experimental points) in liquid phase, and liquid+solid mixtures, over the complete range of compositions and a wide range of temperatures. This model can now be used for viscosity predictions in industrial slag systems. An example of the application of the new application of the new model to slag cleaning and reduction smelting processes is given in this paper.
机译：针对与金属铁平衡的Al_2O_3-CaO-“ FeO” -SiO_2系统中完全液态和非均质，部分结晶的炉渣，已经开发了一种粘度模型。已对Urbain形式主义进行了修改，以描述液态炉渣相在整个成分范围和宽广温度范围内的粘度。 Roscoe方程已被用来描述固体悬浮液对粘度的影响（浆液效应）。优化了粘度模型的参数，以描述低阶子系统以及多组分系统中的大型实验数据集。计算机软件包FACT用于预测固体比例和剩余液相的组成。该模型很好地描述了在整个组成范围和广泛温度范围内的液相和固液混合物中的实验数据（超过四千个实验点）。该模型现在可用于工业炉渣系统中的粘度预测。本文以新模型的新应用在炉渣清理和还原熔炼过程中的应用为例。

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