COREX熔化气化炉风口回旋区内表面积研究  

Study on Surface Area of Raceway in COREX Melter-Gasifier

作　　者：罗志国[1] 孙俊杰[1] 狄瞻霞[1] 邹宗树[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110819

出　　处：《东北大学学报（自然科学版）》2012年第6期840-843,共4页Journal of Northeastern University(Natural Science)

基　　金：中央高校基本科研业务费专项资金资助项目(N090402021)

摘　　要：风口回旋区的传热传质过程与其内表面积密切相关.以COREX熔化气化炉物理模拟为基础,运用欧氏理论和分形理论确定了不同条件下回旋区的内表面积.结果表明:运用分形理论计算的回旋区内表面积较欧氏理论计算的回旋区内表面积大;随着气量增大,回旋区内表面积增大;随床层高度增大,回旋区内表面积减小;随排料速度增大,回旋区内表面积增大.The surface area of raceway has great influence on the heat and mass transfer in raceway. Based on the physical simulation of COREX melter-gasifier, the Euclidean and the fractal theory are applied to determine the surface area of raceway. The results show that the surface area determined by fractal method is greater than that by Euclidean method. The surface area of raceway increases with the increasing of blast volume and discharging rate, while it decreases with the increasing of bed packing height.

关 键 词：COREX 分形 风口回旋区 内表面积 物理模拟 

分 类 号：TF557[冶金工程—钢铁冶金]