COREX工艺系统模拟的数学模型  

System simulation for COREX process: model descriptions

作　　者：王成善[1] 肖兴国[2] 王文忠[2] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400045 [2]东北大学材料与冶金学院,辽宁沈阳110004

出　　处：《重庆大学学报（自然科学版）》2009年第8期869-875,共7页Journal of Chongqing University

基　　金：国家自然科学基金资助项目(50704040);重庆大学自然科学青年基金资助项目

摘　　要：对COREX工艺进行系统模拟,不仅为进一步开发该工艺提供信息预测服务,而且为实际生产中其工艺控制系统的设计奠定基础。在对各反应器内化学反应和热交换作必要假设的基础上,分别对熔化气化炉、还原竖炉和热旋风除尘器等设备进行单元模化。对每个反应器均利用1组物料和(或)热量平衡式、所需的化学反应平衡式和其它有关约束式,计算物料、燃料消耗量或各种生成量。以反应器间物流和能流走向关系进行各反应器衔接匹配情况计算,形成对COREX工艺的系统模拟。System simulation for COREX process not only gives guidance for its development, but also produces a theoretical basis for the design of its computer control system. A composite model for computational analysis on COREX process of ironmaking has been developed. The model combines a set of common material and heat balance equations, chemical equilibrium equations, and other considered correlations. These equations or correlations are coupled together through the material flows and energy flows between each two of all reactors in COREX process. All parameters are calculated based on one ton hot metal. The consumptions of ore and flux, the quantity of slag, and the composition of slag are calculated using the mass conservation for the element of Fe and the oxides such as CaO.MgO.SiO2. A12 03. MnO and P2 05 , etc. The gas volume and composition are calculated using the mass conservation for the elements of C and H and the chemical equilibrium of water-gas reaction, etc. The O2 consumption is calculated using the conservation of the element O. The coal consumption is calculated by using of heat balance for the melter-gasifier.

关 键 词：COREX工艺 还原竖炉 熔化气化炉 物料平衡 热平衡 

分 类 号：TF557[冶金工程—钢铁冶金]