东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2015, Vol. 36 ›› Issue (4): 474-478.DOI: 10.12068/j.issn.1005-3026.2015.04.005

• 材料与冶金 • 上一篇    下一篇

包钢CSP生产线后段超快冷系统水压控制方法

石建辉1， 袁国1， 张勇2， 王国栋1   

  1. (1.东北大学 轧制技术与连轧自动化国家重点实验室， 辽宁 沈阳110819；2.包头钢铁有限责任公司 薄板坯连铸连轧厂， 内蒙古 包头014010)
  • 收稿日期:2014-03-04 修回日期:2014-03-04 出版日期:2015-04-15 发布日期:2014-11-07
  • 通讯作者: 石建辉
  • 作者简介:石建辉(1985-)，男，河北唐山人，东北大学博士研究生； 王国栋(1942-)，男，辽宁大连人，东北大学教授，博士生导师，中国工程院院士.
  • 基金资助:
    “十二五”国家科技支撑计划项目(2012BAF04B01).

Hydraulic Pressure Control Method in Rear Ultra-Fast Cooling System of Baotou CSP Production Line

SHI Jian-hui1， YUAN Guo1， ZHANG Yong2， WANG Guo-dong1   

  1. 1. State Key Laboratory of Rolling and Automation， Northeastern University， Shenyang 110819， China; 2.Compact Strip Production Plant， Baotou Steel Co.， Ltd.， Baotou 014010， China.
  • Received:2014-03-04 Revised:2014-03-04 Online:2015-04-15 Published:2014-11-07
  • Contact: SHI Jian-hui
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摘要： 为了保证CSP热轧双相钢后段超快速冷却生产的稳定及产品组织的均匀性，需实现带钢生产过程中冷却水压力的高精度控制.结合包钢CSP后置超快冷设备和工艺特点，针对带钢冷却过程中集管压力波动问题，分别设计了动力泵压力闭环与溢流阀模糊控制的联合控制法及动力泵压力闭环与溢流阀压力闭环联锁控制法.实际应用效果表明，采用该控制方案，带钢冷却过程中头尾段集管压力控制在0.85±0.05MPa，带钢中间段集管压力控制在0.85±0.01MPa，实现了低成本热轧双相钢后段超快冷过程供水压力的高精度控制，很好地满足了该厂CSP热轧双相钢的生产需求.

关键词: CSP, 超快速冷却, 水压, 干头, 干尾, 控制方法

Abstract: In order to ensure stable production and uniform microstructure of hot-rolled dual phase in CSP rear ultra-fast cooling (UFC)， the high-precision control of the cooling water pressure should be achieved in strip production process. For the problem of the pressure fluctuation in the cooling process of strip， the methods which united power pump closed-loop control and valve fuzzy control， and interlocked power pump closed-loop control and valve closed-loop control were designed by binding technology and equipment features of Baotou CSP rear ultra-fast cooling system. It was found that the head-tail control range of collector pipe pressure is 0.85±0.05MPa， and the middle control range of collector pipe pressure is 0.85±0.01MPa in the actual application. The high-precision control of the cooling water pressure is achieved in low-cost hot-rolled dual phase cooling process of the rear UFC system， and it satisfies the production requirement of hot-rolled dual-phase steel.

Key words: compact strip production(CSP), ultra-fast cooling, water pressure, uncooled head, uncooled tail, control method

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