Numerical simulation of biodiesel submerged combustion in copper bath smelting process

被引：0
|
作者：
Deng W.-P. [1 ,2 ]
Zhang X.-H. [1 ,3 ]
Zhang G.-J. [1 ]
Zhang H. [1 ]
Feng L.-B. [1 ,2 ]
机构：
[1] State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming
[2] Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming
[3] Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education, Kunming University of Science and Technology, Kunming
来源：
Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2019年 / 29卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Bath smelting; Biodiesel; Low-carbon metallurgy; Numerical simulation; Submerged combustion;
D O I：
10.19476/j.ysxb.1004.0609.2019.12.14
中图分类号：
学科分类号：
摘要：
It is an important way to develop the low-carbon metallurgy with biodiesel instead of fossil diesel in copper bath smelting process. A simulation model of biodiesel submerged blowing process was established. The biodiesel submerged combustion process, the motion of gas bubble and copper-matte were simulated under different O2 volume fractions when the submerged depth of the spray nozzle is 1 cm. The simulation model was verified by experiment. The results show that the submerged combustion process of biodiesel is intermittent, this process is mainly done within bubble which is connected to the nozzle, the combustion is weaker after the bubble depart from the nozzle. The temperature changed in the bath is divided into three stages, first irregular drastic stage, then rapid decrease stage, and finally gradually decrease stage. The rising trajectory of the bubble is a curve, and the shape of the bubble changes from spherical to elliptical and finally oblate. The liquid velocity is larger in the axis area and lesser in the near wall area. © 2019, Science Press. All right reserved.
引用
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页码：2809 / 2818
页数：9
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