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中南大学学报(自然科学版)

Journal of Central South University

第51卷    第6期    总第310期    2020年6月

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文章编号:1672-7207(2020)06-1481-08
阳极焙烧过程中的温度分布及挥发分逸出行为
冯明杰,郭奕,毛成

(东北大学 冶金学院, 辽宁 沈阳,110819)

摘 要: 在构建阳极挥发分逸出模型基础上,以Fluent 15.0为计算平台,采用数值模拟方法研究阳极在整个焙烧过程中的温度分布和挥发分的逸出行为。研究结果表明:料箱内的温差难以彻底消除,处于不同位置的阳极的温度分布存在显著差异,上层温度高于下层温度,右侧温度高于左侧温度;但对于单块阳极,其上下温差或水平温差都不大;随着焙烧进行,低温区向火焰流动方向移动;随着加热过程的进行,阳极内的挥发分残余量逐渐减少,但处于料箱内不同位置的阳极即使是在同一时刻,其残余量也各不相同,当加热完成时,残余量差异会变得很小。

 

关键字: 阳极;焙烧炉;挥发分;温度场;逸出行为

Temperature field and volatiles release behavior of anode during baking
FENG Mingjie, GUO Yi, MAO Cheng

School of Metallurgy, Northeastern University, Shenyang 110819, China

Abstract:On the basis of volatile release sub-model, the temperature field and volatile release behavior of anode during baking were numerically simulated by use of Fluent 15.0 software.The results show that it is difficult to eliminate the temperature difference in the pit completely. The temperature distribution has significant difference for the anodes at different locations in the pit. The temperature in the upper anodes is higher than that in the lower anodes, and the temperature in the right anodes is higher than that in the left anodes, but the temperature difference is small relatively for a single anode. The low temperature zone gradually moves toward the flame flow direction during baking. The residual amount of volatiles in the anodes decrease gradually during the heating process, but the values are different for different anodes at the same time. This difference becomes very small when the heating is completed.

 

Key words: anode; baking furnace; volatile matter; temperature field; release behavior

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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