矿热炉水冷型烟道中颗粒沉积的模拟研究  

SIMULATION STUDY ON PARTICLE DEPOSITION IN WATER-COOLED FLUE OF A SUBMERGED ARC FURNACE

作　　者：杜锦奇 兰孝宇 丁佳文 王杰 DU Jinqi;LAN Xiaoyu;DING Jiawen;WANG Jie(School of Mechanical and Power Engineering,University of Chemical Technology Shenyang,Liaoning Shenyang 110142,China)

机构地区：[1]沈阳化工大学机械与动力工程学院,辽宁沈阳110142

出　　处：《铁合金》2024年第5期17-19,25,共4页Ferro-alloys

基　　金：大学生创新创业训练计划(项目编号:202310149006)。

摘　　要：介绍了为研究矿热炉水冷型烟道中颗粒沉积行为的分布及特性,采用计算流体动力学(CFD)技术对矿热炉水冷型烟道内烟气沉积行为进行了模拟。采用RNG k-ε湍流模型计算了流场,并采用离散相模型(DPM)和JKR理论相结合建立了颗粒沉积的判断准则,对矿热炉水冷型烟道中的颗粒沉积进行了模拟研究。结果表明,当烟气温度由873.15 K升高至1273.15 K时,入口段、Ⅰ段和三通段的沉积速率对比于其他管段沉积速率有着明显的增大,入口段沉积速率由0.12 g/s增加至0.98 g/s,Ⅰ段沉积速率由0.11 g/s增加至0.88 g/s,三通段沉积速率由0.11 g/s增加至0.45 g/s。In order to study the distribution and characteristics of particle deposition in the water-cooled flue of a submerged arc furnace,computational fluid dynamics(CFD)technology was used to simulate the behavior of flue gas deposition in water-cooled flue of the submerged arc furnace.The RNG k-ε turbulence model was used to calculate the flow field,and the discrete phase model(DPM)and JKR theory were used to establish the judgment criteria for particle deposition.The particle deposition in the water-cooled flue of a submerged arc furnace was simulated and studied.The results showed that when the flue gas temperature increased from 873.15 K to 1273.15 K,the deposition rates of the inlet section,sectionⅠand tee section increased significantly compared to other pipe sections.The deposition rate of the inlet section increased from 0.12 g/s to 0.98 g/s,section I increased from 0.11 g/s to 0.88 g/s,and tee section increased from 0.11 g/s to 0.45 g/s.

关 键 词：CFD 水冷型烟道 颗粒沉积 温度影响 离散型模型 

分 类 号：TF644.1[冶金工程—钢铁冶金]