RH上升管喷粉精炼过程粉剂混匀时间物理模拟研究*

doi:10.13385/j.cnki.vacuum.2020.05.11

Abstract

Abstract: The RH refining process plays a vital role in the quality of molten steel. The mixing characteristics of RH directly affect the quality of molten steel, whether the RH equipment can run smoothly and the efficiency of secondary refining.In this paper, the hydraulic model of 1:4 is established. Using the control variable method, KCl powder was sprayed in the RH riser position of the water model to replace the desulfurizer in the actual production. The effects of insufflation amount, the immersion depth of the dip tube and the vacuum degree on mixing time were studied. It is shown that the shorter the mixing time of the powder and liquid steel in the RH refining furnace, the better the refining effect. The larger the blowing amount in a certain range, the greater the immersion depth, and the greater the vacuum degree, the shorter the mixing time.

Key words: RH, riser, powder spray, water mold

CLC Number:

TF769.3

ZHANG Jia-wei, LIU Hai-xiao, GAO Shou-qi, HAN Dong, ZHANG Rui-dong. Physical Simulation Study on Powder Mixing Time in RH Riser Powder Refining Process[J].VACUUM, 2020, 57(5): 52-56.

References

[1] 焦志远, 向鹏, 刘楚, 等. RH精炼过程炉喷粉脱硫工艺研究[J]. 重型机械, 2016(5): 6-9.
[2] 杨宏博, 李京社, 高增福, 等. RH喷粉脱硫工业试验研究[J]. 炼钢, 2014(2): 55-58.
[3] 丛芳, 毕秀荣. RH真空精炼技术的发展现状及其设备组成[J]. 工业加热, 2011, 40(2): 18-20.
[4] Baokuan LI, Fumitaka TSUKIHASHI.Effect of rotating magnetic field on two-phase flow in RH vacuum degassing vessel[J]. ISIJ International, 2005, 45(7): 972-978.
[5] 张军. RH顶枪喷粉系统及应用[J]. 宽厚板, 2018, 24(2): 17-20.
[6] Wang X F, Tang F P, Lin Y, et al.Development of novel RH degassing process with powder injection through snorkel nozzles[J]. Iron making & Steel making, 2000, 41(9): 694-698.
[7] 迟云广, 吕宏禹, 王恒辉, 等. RH精炼过程循环流量的物理模拟[J]. 钢铁研究, 2012, 40(2): 21-24.
[8] 胡建东. RH精炼工艺的物理模拟研究[D]. 沈阳: 东北大学, 2010.
[9] 迟云广. 210tRH精炼工艺的物理模拟[D]. 武汉: 武汉科技大学, 2011.
[10] 屠浩. RH真空精炼喷吹工艺参数优化的物理模型研究[D]. 武汉: 武汉科技大学, 2015.
[11] 徐国群. RH钢水精炼技术的现状与发展前景[C]. 中国金属学会. 2006年全国炼钢、连铸生产技术会议文集. 中国金属学会: 中国金属学会, 2006: 119-123.
[12] 杨婷. 洁净钢生产技术的研发进展[N]. 世界金属导报, 2018-11-13(B03).
[13] 张鹏. 我国钢铁工业未来发展有关问题的探讨[J]. 企业改革与管理, 2018(21): 211+224.
[14] 刘浏. RH真空精炼工艺与装备技术的发展[J]. 钢铁, 2006, 41(8): 1-11.
[15] 高心魁. 为洁净钢冶炼助力[N]. 中国冶金报, 2014-11-25(012).

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Physical Simulation Study on Powder Mixing Time in RH Riser Powder Refining Process

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