Development of Step Cooling Control System After Rolling Based on Automatic Feedback Control in Hot Strip Mill

DOI

10.2991/meees-18.2018.45How to use a DOI?

Keywords

Hot strip mill, Cooling control, Step cooling, Feedback control, Mathematical model.

Abstract

Combined with a hot strip mill line, the laminar and step cooling mathematical models for cooling after rolling were introduced. The mathematical models mainly include air cooling model, water cooling model, setup control model, feedforward control model and feedback control model. Due to the delay of the feedback control, the original system could not achieve high precision control of the coiling temperature. Based on the process requirements of rolling dual phase steel, a new step cooling control system based on SMITH automatic feedback control was developed, and the cooling path and the configuration of the spray were re-divided. The experimental application showed that the optimized system had a stable operation and high control precision, the control precision of MT and CT is about 95%, which had significantly improved the performance of the product and laid a foundation for the rolling of new steels.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Bo Gong
AU  - Xudong Li
AU  - Changli Zhang
AU  - Shuzhi Wang
AU  - Ziying Liu
AU  - Fengqin Wang
PY  - 2018/05
DA  - 2018/05
TI  - Development of Step Cooling Control System After Rolling Based on Automatic Feedback Control in Hot Strip Mill
BT  - Proceedings of the 2018 International Conference on Mechanical, Electrical, Electronic Engineering & Science (MEEES 2018)
PB  - Atlantis Press
SP  - 256
EP  - 260
SN  - 2352-5401
UR  - https://doi.org/10.2991/meees-18.2018.45
DO  - 10.2991/meees-18.2018.45
ID  - Gong2018/05
ER  -