玻璃电熔窑模拟计算的应用

The Applications of Simulative Calculation to Electric Glass Melting Tank Furnace

在确定了玻璃电熔窑的工作状态的模拟计算的数学模型之后,从玻璃熔炼作业的观点出发计算、比较,并讨论了熔窑不同的加料方法、玻璃熔体出料量以及不同电极排列等十个不同的设计方案.结论如下:(1)从数学模型研究得到的结果与从艰苦的物理模拟实验得到的结果基本上一致.(2)电熔窑"冷顶"加料法比"热顶"加料法更好.(3)电极排列对于玻璃电熔的熔窑设计是至关重要的,因为电极直接影响通过整个玻璃熔体的电功率的分布状态.(4)为了获得优质玻璃,建议把玻璃熔体出料口放在玻璃深度一半的下面.(5)从操怍控制的技术方便出发,认为那些其电导率随温度缓慢变化的玻璃更适于电熔过程.

Based on a mathematical model, set up by these authors, for a simulative calculation of the working states of a glass electric melting tank furnace, ten varieties of schemes in different ways of batch feeding, glass melt output and electrode arrangement were calculated, compared and discussed as viewed from the glass melting operations. The following conclusions could be drawn as: 1. The results obtained from this math model study are basically accordant with those from the painstaking physical simulation experiments; 2. The way of 'cold top' batch feeding is better than that of the 'hot top' feeding; 3.The electrode arrangement is of vital importance to the furnace design for glass electric melting, because it directly applies its influence on the electric power distribution through the bulk glass melt; 4. The discharge throat is suggested to locate at the lower middle part of the depth of glass in order to obtain a glass of good quality; 5. Electric melting process works better with those glasses, of which the electric conductivity mildly changes with temperature, as viewed from the technical convenience of the operation control.