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| Optimization Practice of Steel Ladle Running Cycle |
| CHEN Hong1,L Yong-kang2,ZHANG Ji-bin2,YANG Jin-wen2 |
1. Kunming Industrial Vocational Technical College, Kunming 650302, Yunnan, China
2. Kunming Iron and Steel Co., Ltd., Kunming 650302, Yunnan, China |
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Abstract The stationary period of ladle in all processes was detailedly investigated using the running cycle method, the law of temperature drop was researched and the problems of ladle running were found. The results show that the cycle period and reasonable number of ladle can be calculated through the time statistic; there are some unnecessary running ladles; for empty ladle, the running time is longer and online baking time is shorter. Through optimizing the ladle running cycle, not only ladle running cycle is shorten so that the reasonable number of running ladle is ensured, but also the running cycle for empty ladle is speeded up and the running time for ladle is shorten about 10 minutes. Hot ladle turn round can basically be achieved. Control strategy optimization for ladle running is helpful to energy-saving, decrease in ladle number, stabilization and reduction of casting temperature, promotion of continuous casting and improvement of slab quality.
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Received: 18 January 2012
Published: 30 October 2012
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2012, Vol. 47 
