海绵钛副产品氯化镁高温气相氧化反应器内流场的模拟研究  

Simulation Study on Flow Field of Sponge Titanium by Product Magnesium Chloride in High Temperature Gas Phase Oxidation Reactor

作　　者：何泽玉 李晓飞 牛丽萍[1] 张廷安[1] He Zeyu;Li Xiaofei;Niu Liping;Zhang Ting’an(Key Laboratory for Ecological Utilization of Multimetallic Mineral,Ministry of Education,Northearthen University,Shengyang 110819,China)

机构地区：[1]东北大学多金属共生矿生态化利用教育部重点实验室

出　　处：《钛工业进展》2019年第4期36-42,共7页Titanium Industry Progress

基　　金：国家自然科学基金资助项目(51374064)

摘　　要：针对“原位热解-热法还原炼镁”海绵钛清洁生产新工艺中镁、氯循环的关键步骤——气态MgCl2与O2的气相热解反应的反应器进行研究。设计了2种反应器模型,并采用物理模拟和数值模拟的方法研究反应器模型内的浓度场和速度场。物理模拟中,在N2与CO2流量比为6∶1时,CO2采用环向四口进气方式,此时气体混合不均匀度为0.02,混合程度最佳;数值模拟结果和物理模拟结果相吻合。This study is aimed at the reactor for homogeneous pyrolysis of gaseous magnesium chloride with oxygen, the committed step of magnesium and chlorine generated in the new cleaner production process of titanium sponge by in-situ pyrolysis-pyrolysis reduction magnesium smelting. Design two reactor models and the concentration and velocity fields in the reactor model were studied by physical simulation and numerical simulation. In physical simulation, when the flow ratio of nitrogen to carbon dioxide is 6 ∶ 1, the circular four-port intake mode is adopted for carbon dioxide, the gas mixing heterogeneity is 0.02, reaching the best gas mixing degree. The results of the numerical simulation are consistent with the physical simulation.

关 键 词：氯化镁 氧化热解 反应器 气体混合 

分 类 号：TF803.13[冶金工程—有色金属冶金]