電弧爐煉鋼集束氧槍射流沖擊深度特征規律研究

劉福海; 魏光升; 朱榮; 唐天平; 常軍; 蘇榮芳; 劉潤藻

doi:10.13374/j.issn2095-9389.2018.s1.019

電弧爐煉鋼集束氧槍射流沖擊深度特征規律研究

doi: 10.13374/j.issn2095-9389.2018.s1.019

劉福海¹,
魏光升^2,3, ,,
朱榮^2,3,
唐天平²,
常軍⁴,
蘇榮芳⁵,
劉潤藻²

1. 北京科技大學國家材料服役安全科學中心;
2. 北京科技大學冶金與生態工程學院;
3. 北京科技大學高端金屬材料特種熔煉與制備北京市重點實驗室;
4. 西寧特殊鋼股份有限公司;
5. 北京榮誠京冶科技有限公司

基金項目:

國家自然科學基金資助項目 (51734003, 51474024, 51574021)

詳細信息

通訊作者:
魏光升, E-mail:wgshsteel@126.com

中圖分類號: TF741.5
計量
- 文章訪問數: 24
- HTML全文瀏覽量: 5
- PDF下載量: 0
- 被引次數: 0
出版歷程
- 收稿日期: 2018-02-04
- 網絡出版日期: 2023-07-18

Study of Penetration Depth Characteristics of Coherent Jet in EAF Steelmaking

1. National Center for Materials Service Safety,University of Science and Technology Beijing;
2. School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing;
3. Beijing Key Laboratory of Special Melting and Preparation of High-end Metal Materials,University of Science and Technology Beijing;
4. Xining Special Steel CO.,LTD.;
5. Rongcheng Jingye TechnologyLimited Beijing

摘要

摘要: 電弧爐煉鋼廣泛采用集束射流供氧技術以強化熔池攪拌、加速冶金反應和提升產品質量.本文利用數學分析方法推導出射流沖擊深度理論計算模型并進行了修正, 利用數值模擬和水模型實驗方法驗證所推導計算模型的可靠性.實驗結果表明:集束射流與普通超音速射流的沖擊深度規律相似.同射流條件下, 隨著氧槍槍位的提升, 沖擊深度逐漸減小;同槍位條件下, 集束射流沖擊深度大于普通超音速射流沖擊深度;集束射流的k值和射流軸線密度大于普通超音速射流, 這表現為相同氧槍槍位條件下, 集束射流的沖擊深度更深.
- 電弧爐煉鋼 /
- 集束射流 /
- 沖擊深度 /
- 數值模擬 /
- 水模型實驗
Abstract: Coherent jet is widely adopted in electric arc furnace (EAF) steelmaking to promote molten-bath fluid flow, accelerate the metallurgical reaction, and improve the quality of molten steel.A water model experiment was conducted and a computational fluid dynamics (CFD) model was established to validate the theoretical model of penetration depth, which was built and modified by mathematical analysis.Resultsshow that the impact law of the coherent jet is similar to that of conventional supersonic jet.With the same jet condition, the penetration depth decreases as the lance height increases.At the same lance height, the penetration depth of the coherent jet is greater than that of the conventional supersonic jet as indicated by the higher k value and jet gas density of the former.
- EAF steelmaking /
- coherent jet /
- penetration depth /
- numerical simulation /
- water model experiment

HTML全文

參考文獻(15)

[1]	Wei G S, Zhu R, Cheng T, et al. Numerical simulation of jet behavior and impingement characteristics of preheating shrouded supersonic jets. J Iron Steel Res Int, 2016, 23 (10) :997
[2]	Li Q, Li M M, Kuang S B, et al. Numerical simulation of the interaction between supersonic oxygen jets and molten slag-metal bath in steelmaking BOF process. Metall Mater Trans B, 2015, 46 (3) :1494
[3]	Dong K, Zhu R, Gao W, et al. Simulation of three-phase flow and lance height effect on the cavity shape. Int J Miner Metall Mater, 2014, 21 (6) :523
[4]	Ersson M, Tilliander A, Jonsson L, et al. A mathematical model of an impinging air jet on a water surface. ISIJ Int, 2008, 48 (4) :377
[5]	Hwang H Y, Irons G A. Mathematical modeling of impinging gas jets on liquid surfaces. Metall Mater Trans B, 2011, 42 (3) :575
[6]	Alam M, Naser J, Brooks G, et al. A computational fluid dynamics model of shrouded supersonic jet impingement on a water surface. ISIJ Int, 2012, 52 (6) :1026
[7]	Li Z Z, Zhu R, Liu R Z, et al. Effect of oxygen lance position on the flow velocity of molten steel in BOF. J Univ Sci Technol Beijing, 2014, 36 (Suppl 1) :15 (李智崢, 朱榮, 劉潤藻, 等.轉爐氧槍槍位對煉鋼熔池流速的影響.北京科技大學學報, 2014, 36 (增刊1) :15)
[8]	Solórzano-López J, Zenit R, Ramírez-Argez M A. Mathematical and physical simulation of the interaction between a gas jet and a liquid free surface. Appl Math Modell, 2011, 35 (10) :4991
[9]	Lee M, Whitney V, Molloy N. Jet-liquid interaction in a steelmaking electric arc furnace. Scand J Metall, 2001, 30 (5) :330
[10]	Collins R D, Lubanska H. The depression of liquid surfaces by gas jets. Br J Appl Phys, 2002, 5 (1) :22
[11]	Nordquist A, Kumbhat N, Jonsson L, et al. The effect of nozzle diameter, lance height and flow rate on penetration depth in a Top-blown Water Model. Steel Res Int, 2006, 77 (2) :82
[12]	Alam M, Irons G, Brooks G, et al. Inclined jetting and splashing in electric arc furnace steelmaking. ISIJ Int, 2011, 51 (9) :1439
[13]	Mazumdar D, Guthrie R I L. The physical and mathematical modelling of gas stirred ladle systems. ISIJ Int, 1995, 35 (1) :1
[14]	Bank R B, Chandrasekhara D V. Experimental investigation of the penetration of a high-velocity gas jet through a liquid surface.J Fluid Mech, 1963, 15 (1) :13
[15]	Crowe C T, Elger D F, Williams B C, et al. Engineering Fluid Mechanics. 9th Ed. Hoboken:John Wiley&Sons, Inc, 2009