Development of emulsion pipeline direct mixed lubrication system in double cold reduction mill
BAI Zhen-hua1,2, CUI Ya-ya1,3, LI Xiu-jun1, XIA Yi-wei1
1. National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University,Qinhuangdao 066004, Hebei, China; 2. State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, Hebei, China; 3. College of Mechanical and Equipment Engineering, Hebei University of Engineering, Handan 056038, Hebei, China
Abstract:The traditional direct application system can only online adjusting the emulsion flow,but cannot online adjusting the emulsion flow and concentration simultaneously,resulting in the rolling instability,poor strip thickness and flatness quality,high rolling energy and oil consumption cost during the steel grade change,rolling acceleration and deceleration in the double cold reduction mill. Combing with the equipment and technological characteristics of the double cold reduction mill,the key equipment of the emulsion pipeline direct mixed lubrication system was optimizing selected on the developed experimental platform. Thus,the design method of the emulsion pipeline direct mixed lubrication system in the double cold reduction mill was proposed. Moreover,the emulsion properties of the mixing tank agitation and the pipeline direct mixing were compared. Then,this lubrication system was applied in a 1 220 double cold reduction mill,with the rolling stability,strip thickness,flatness quality effectively improved,and the rolling energy and oil consumption cost reduced.
白振华, 崔亚亚, 李秀军, 夏益伟. 二次冷轧机组乳化液管路直接混合润滑系统开发[J]. 钢铁, 2020, 55(1): 56-64.
BAI Zhen-hua, CUI Ya-ya, LI Xiu-jun, XIA Yi-wei. Development of emulsion pipeline direct mixed lubrication system in double cold reduction mill. Iron and Steel, 2020, 55(1): 56-64.
[1] Kimura Y,Fujita N,Matsubara Y,et al. High-speed rolling by hybrid-lubrication system in tandem cold rolling mills[J]. Journal of Materials Processing Technology,2015,216:357. [2] 何小丽,刘巨双. 薄带钢轧制过程中辊端压靠问题与辊型技术[J]. 钢铁,2018,53(1):94.(HE Xiao-li, LIU Ju-shuang. Roll end forced-contract problems and roll profile technology in sheets rolling process[J]. Iron and Steel,2018,53(1):94.) [3] 杨光辉,张高尚,张杰,等. 2 180 mm超宽六辊CVC冷轧机SMS-EDC边降控制特性[J]. 钢铁,2018,53(5):52.(YANG Guang-hui,ZHANG Gao-shang,ZHANG Jie,et al. SMS-EDC edge control characteristics of 2 180 mm super-wide 6-high CVC cold rolling mill[J]. Iron and Steel,2018,53(5):52.) [4] 任忠凯,王涛,王跃林,等. 极薄带轧制变形区接触轮廓及接触压力分析[J]. 钢铁,2018,53(12):62.(REN Zhong-kai,WANG Tao,WANG Yue-lin,et al. Analysis of contact contour and contact pressure in deformation zone of ultra-thin strip rolling[J]. Iron and Steel,2018,53(12):62.) [5] 白振华,宋和川,钱承,等. 二次冷轧设备及工艺研究进展[J]. 塑性工程学报,2016,23(6):87.(BAI Zhen-hua,SONG He-chuan,QIAN Cheng,et al. Research development of double cold reduction equipment and process[J]. Journal of Plasticity Engineering,2016,23(6):87.) [6] 胡建军,文杰,于孟,等. DR9镀锡板板形控制技术研究与应用[J]. 中国冶金,2018,28(6):37.(HU Jian-jun,WEN Jie,YU Meng,et al. Research and application of flatness control on DR9 tinplat[J]. China Metallurgy,2018,28(6):37.) [7] 瞿培磊,李秀军,王康健. 轧制润滑对二次冷轧生产及产品表面形貌的影响[J]. 上海金属,2015,37(1):52.(QU Pei-lei,LI Xiu-jun,WANG Kang-jian. Influence of rolling lubricating on double cold reduction and rolled strip surface morphology[J]. Shanghai Metals,2015,37(1):52.) [8] 魏立群,戴志方,肖壮,等. 高速冷连轧机组的振动与对策研究[J]. 机械工程学报,2016,52(11):88.(WEI Li-qun,DAI Zhi-fang,XIAO Zhuang,et al. Research of vibration and strategy in high speed cold-rolling mill [J]. Journal of Mechanical Engineering,2016,52(11):88.) [9] Ghanem A,Lemenand T,Della Valle D,et al. Static mixers:Mechanisms,applications,and characterization methods-A review[J]. Chemical Engineering Research and Design,2014,92(2):205. [10] Lobry E,Theron F,Gourdon C,et al. Turbulent liquid-liquid dispersion in SMV static mixer at high dispersed phase concentration[J]. Chemical Engineering Science,2011,66(23):5762. [11] 闻成才,王立兵,刘强,等. 1 580 mm精轧机组大凹辊控制硅钢板形的研究及实践[J]. 中国冶金,2019,29(1):56.(WEN Cheng-cai,WANG Li-bing,LIU Qiang,et al. Research and practice on controlling of shape of silicon steel plate by large concave roll in hot rolling 1 580 mm finishing mill[J]. China Metallurgy,2019,29(1):56.) [12] 鲁鹏,刘兴祥,于浩. 浅谈冷轧乳化液系统节能减排技术[J]. 轧钢,2019,36(2):52..(LU Peng,LIU Xing-xiang,YU Hao. A brief analysis on energy saving and emission reduction technology of cold rolling emulsion system[J]. Steel Rolling,2019,36(2):52.)