反应塔炉壁三维温度场及内壁挂渣数模仿真研究

Mathematical Simulation of Furnace Wall Temperature Field and Inner Wall Sluggish of Reaction Shaft

针对铜闪速熔炼过程中反应塔内壁挂渣问题,基于传热学理论和塔壁挂渣消长过程机理,采用有限差分法,研究建立了三维圆柱坐标下的反应塔炉壁温度场及内壁挂渣数学模型和仿真系统。并对反应塔水套间距及烟气温度对炉壁温度场和内壁挂渣的影响进行了仿真研究,仿真结果与现场实际情况基本吻合。该系统对于炉体冷却元件配置设计以及生产过程工艺参数优化控制具有一定的参考价值。

Aimed to the problem of inner wall sluggish of reaction shaft in copper flash smelting, adopting to finite differential method, the mathematical model and simulation system for furnace wall temperature field of reaction shaft under three-dimensional circular cylindrical coordinates and its inner wall sluggish are established based on the heat transmission theory and the process mechanics of growth and decline of reaction shaft sluggish. Besides, both the influence of water jacket space to furnace wall temperature field distributing and the influence of gas temperature to the sluggish thickness distributing of inner wall are simulated and the results are in agreement with the real conditions. The simulation system has certain reference value to the allocation and design of cooling component of the furnace body and the optimizing control of processing parameters.