用于高效冶炼氧化镁的双电极直流电弧炉的仿真与实验

Abstract
Figure/Table
References
Related Citation (2)

Download: PDF (20769 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract A 3 000kV·A three-phase AC arc furnace for MgO production has been elaborately refitted into a dual-electrode DC arc furnace with the same capacity. The relationship between the output voltage and the maximum arc length in different smelting currents has been studied. Meanwhile, the molten bath temperature field distribution was calculated by three-dimensional finite element simulation analysis method. High purity MgO crystals could be produced with the converted arc furnace. Additionally, the morphology of the molten MgO lump was similar to a tensile body with an elliptical cross section, which is consistent with the simulation results. Finally, the MgO smelting production data of DC arc furnace were compared with the data of AC arc furnace. The comparison results indicated that the dual-electrode DC arc furnace for smelting MgO has obvious advantages over the traditional three-phase AC arc furnace, from the views of energy consumption per ton, electrode loss as well as crystal purity. This paper has provided theoretical guidance and basis for the production of MgO with dual-electrode DC arc furnace.

Key words： DC arc furnace, magnesium oxide, energy consumption per ton, electrode loss

Received: 10 March 2016 Published: 03 January 2017

PACS:

TM924

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Fu You
	Wang Zhen
	Wang Ninghui

Cite this article:

Fu You,Wang Zhen,Wang Ninghui. 1.Simulation and Experiment Investigation on a Dual-Electrode DC Arc Furnace with High Smelting Efficiency for MgO Production[J]. Transactions of China Electrotechnical Society, 2016, 31(24): 79-87.

URL:

https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I24/79

[1] 张克从. 晶体生长[M]. 北京: 科学出版社, 1981.
[2] 彭卉, 邹舒, 付永生, 等. 冲击负荷接入电网的电能质量分析与治理方案研究[J]. 电力系统保护与控制, 2014, 42(1): 54-61.
Peng Hui, Zou Shu, Fu Yongsheng, et al. Research of the power quality problem and treatment scheme for impact loads connected into power system[J]. Power System Protection and Control, 2014, 42(1): 54-61.
[3] 张峰, 何新, 杨丽君. 用于电能质量分析的电弧炉仿真模型[J]. 电气技术, 2013, 14(7): 34-38.
Zhang Feng, He Xin, Yang Lijun. The simulation models of electric arc furnace for analysis on quality of electric power[J]. Electrical Engineering, 2013, 14(7): 34-38.
[4] 段晓波, 朱明星, 胡文平, 等. 交流电弧炉SVC装置2次滤波支路设计校核新方法[J]. 电力系统保护与控制, 2014, 42(1): 126-133.
Duan Xiaobo, Zhu Mingxing, Hu Wenping, et al. Research on the design and check method of the secondary filter branch for SVC device of the AC arc furnace[J]. Power System Protection and Control, 2014, 42(1): 126-133.
[5] 付友, 王宁会, 王志强, 等. 基于噪声信号的电弧炉冶炼氧化镁运行状态分析[J]. 电工技术学报, 2015, 30(5): 15-22.
Fu You, Wang Ninghui, Wang Zhiqiang, et al. Running state analysis of the electric arc furnace smelting magnesium oxide based on the noise signal[J]. Transactions of China Electrotechnical Society, 2015, 30(5): 15-22.
[6] Reynolds Q G. The dual-electrode DC arc furnace- modeling insights[J]. Journal of the Southern African Institute of Mining and Metallurgy, 2011, 111(10): 697-703.
[7] Kotze I J. Pilot plant production of ferronickel from nickel oxide ores and dusts in a DC arc furnace[J]. Minerals Engineering, 2002, 15(11): 1017-1022.
[8] 秦勤, 岳强, 顾根华, 等. 双电极直流电熔镁埋弧电弧炉[J]. 东北大学学报, 2003, 24(7): 685-688.
Qin Qin, Yue Qiang, Gu Genhua, et al. DC submerged-arc furnace with twin electrodes for the fused magnesia production[J]. Journal of Northeastern University, 2003, 24(7): 685-688.
[9] Schoukens A, Abdellatif M, Freeman M. Techno- logical breakthrough of the Mintek thermal magne- sium process[J]. Journal of the South African Institute of Mining & Metallurgy, 2006, 106(1): 25.
[10] 佟玉鹏, 张雄, 张化光. 交流三相电熔镁炉的最佳运行分析[J]. 控制工程, 2007, 14(2): 205-208.
Tong Yupeng, Zhang Xiong, Zhang Huaguang. Analysis of optimal operation about purifying magne- sium oxide with three-phase AC electric smelting furnace[J]. Control Engineering of China, 2007, 14(2): 205-208.
[11] 司鹏, 张卫军, 池中源, 等. 基于极心圆直径算法的电熔镁炉研究[J]. 冶金能源, 2015, 34(2): 16-19.
Si Peng, Zhang Weijun, Chi Zhongyuan, et al. Research of fused magnesia furnace based on electrode circle diameter algorithm[J]. Energy for Metallurgical Industry, 2015, 34(2): 16-19.
[12] 齐国超, 张卫军, 仝永娟, 等. 电熔镁电弧炉炉体优化设计[J]. 冶金能源, 2010, 29(4): 34-36.
Qi Guochao, Zhang Weijun, Tong Yongjuan, et al. Geometry size optimizing of fused magnesia arc furnace[J]. Energy for Metallurgical Industry, 2010, 29(4): 34-36.
[13] 吴志伟, 柴天佑, 付俊, 等. 电熔镁炉熔炼过程的智能设定值控制[J]. 控制与决策, 2011, 26(9): 1417-1420.
Wu Zhiwei, Chai Tianyou, Fu Jun, et al. Intelligent setpoints control of smelting process of fused magnesium furnace[J]. Control and Decision, 2011, 26(9): 1417-1420.
[14] 胡田, 唐任远, 李岩, 等. 永磁风力发电机三维温度场计算及分析[J]. 电工技术学报, 2013, 28(3): 122-126.
Hu Tian, Tang Renyuan, Li Yan, et al. Thermal analysis and calculation of permanent magnet wind generators[J]. Transactions of China Electrotechnical Society, 2013, 28(3): 122-126.
[15] 陈益广, 郑军, 魏娟, 等. 舵机用永磁同步电机的设计与温度场分析[J]. 电工技术学报, 2015, 30(14): 94-99.
Chen Yiguang, Zheng Jun, Wei Juan, et al. Design of PMSM for actuator and its temperature field analysis[J]. Transactions of China Electrotechnical Society, 2015, 30(14): 94-99.
[16] 吕安强, 李永倩, 李静, 等. 光电复合海缆中光纤与导体温度关系的有限元分析方法[J]. 电工技术学报, 2014, 29(4): 91-96.
Lü Anqiang, Li Yongqian, Li Jing, et al. Finite element analysis method for temperature relationship between conductor and optical fiber in optic-electric composite submarine cable[J]. Transactions of China Electrotechnical Society, 2014, 29(4): 91-96.
[17] Reynolds Q G, Jones R J, Reddy B D. Mathematical and computational modelling of the dynamic behaviour of direct current plasma arcs[J]. Journal of the South African Institute of Mining & Metallurgy, 2010, 110(12): 733-742.
[18] Reynolds Q G, Jones R T. Twin-electrode DC smelting furnaces-theory and photographic test work[J]. Minerals Engineering, 2006, 19(3): 325-333.
[19] Wang Zhen, Wang Ninghui, Li Tie. Computational analysis of a twin-electrode DC submerged arc furnace for MgO crystal production[J]. Journal of Materials Processing Technology, 2011, 211(3): 388-395.
[20] Li Tie, Wang Zhen, Wang Ninghui. Temperature field analysis and adaptive neuro-fuzzy inference system for MgO single crystal production[J]. Journal of Wuhan University of Technology, 2012, 27(6): 162-169.
[21] Jones R T, Reynolds Q G, Alport M J. DC arc photography and modeling[J]. Minerals Engineering, 2002, 15(11): 985-991.
[22] Bowman B, Jordan G R, Fitzgerald F. The physics of high-current arcs[J]. Journal of the Iron and Steel Institute, 1969, 207(6): 798-805.
[23] Wang Zhen, Fu You, Wang Ninghui, et al. 3D numerical simulation of electrical arc furnaces for the MgO production[J]. Journal of Materials Processing Technology, 2014, 214(11): 2284-2291.
[24] Leu A, Ma S, Eyring H. Properties of molten magnesium oxide[J]. Proceedings of the National Academy of Sciences of the United States of America, 1975, 72(3): 1026-1030.
[25] 刘刚. 电熔氧化镁炉弧压系数与弧流系数的测定[J]. 工业加热, 2002, 31(4): 39-42.
Liu Gang. Determination of arc voltage and arc current coefficients of MgO smelting[J]. Industrial Heating, 2002, 31(4): 39-42.