(1. 北京科技大学 冶金与生态工程学院，北京 100083；
2. 广西南丹南方金属有限公司，河池 547000)
摘 要: 基于有效平衡反应区概念开发了一个过程模型，用于研究铅富氧侧吹氧化-还原过程动力学。该方法充分考虑了气-渣-金多相反应、传质动力学以及能量守恒。采用简化的流动方程连接各个反应区，假定反应区内达到局部热力学平衡，将热力学计算链接到动力学模拟。硫化铅精矿脱硫反应和富铅渣碳热还原反应采用FactSage计算，炉渣和金属的传质系数由数值模拟获得。对实际工业过程中不同时刻的样品进行元素分析和相分析，验证了该模型。当前开发的过程模型，可预测铅富氧侧吹熔炼过程中物相及其成分随时间的变化，有望用于过程控制和智能工厂的建设。
关键字: 铅冶炼；侧吹炉；热力学；动力学模拟
（1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. Guangxi Nandan South Metal Co., Ltd., Hechi 547000, China）
Abstract:Based on the concept of an effective equilibrium reaction zone, a process model was developed to study the kinetics of the oxidation-reduction process of lead oxygen-enriched side blowing. This method fully considered the gas-slag-gold multiphase reaction, mass transfer kinetics and energy conservation. With a simplified flow equation was used to connect each reaction zone and the local thermodynamic equilibrium was assumed in reaction zones, the thermodynamic calculation was linked to the kinetic simulation. The desulfurization reaction of lead sulfide concentrate, and the reduction reaction of lead-rich slag were calculated by FactSage. The mass transfer coefficients of slag and metal are obtained by numerical simulation. The element analysis and phase analysis of samples at different moments in the actual industrial process validate the model. The currently developed process model can predict the phase and composition changes over time during the lead oxygen-enriched side-blown smelting process, and is expected to be used for process control and the construction of smart factories.
Key words: lead smelting; side blowing furnace; thermodynamics; kinetics
