Journal of Northeastern University Natural Science ›› 2015, Vol. 36 ›› Issue (11): 1619-1623.DOI: 10.12068/j.issn.1005-3026.2015.11.022

• Materials & Metallurgy • Previous Articles     Next Articles

Optimization of Production Schedule Based on Ladle Running Stability in Steel Plant

FENG Kai1, HE Dong-feng1, XU An-jun1, WANG Hong-bing2   

  1. 1. School of Metallurgy and Ecology Engineering, University of Science and Technology Beijing, Beijing 100083, China; 2. School of Computer and Communication Engineering, University of Science and Technology Beijing, Beijing 100083, China.
  • Received:2014-04-08 Revised:2014-04-08 Online:2015-11-15 Published:2015-11-10
  • Contact: HE Dong-feng
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Abstract: For the problem of the lack of guiding principle of production schedule in the case of non-full production in steelmaking plant, the optimization method of production schedule based on ladle running stability was proposed. First, the computational method of the number of online operation ladle was proposed by analyzing ladle turnaround process. Second, the impact of production schedule on ladle running was analyzed for the production schedule of single casting machine and two casting machine, and the computational model was proposed. Finally, the method was used to optimize actual production schedule of a steelmaking plant. The results showed that using genetic algorithm based on ladle running stability, the fluctuation of the number of ladle is reduced, the fluctuation of ladle thermal state is reduced, baking gas is saved, the temperature of BOF endpoint is reduced and the level of control the temperature of molten steel is improved.

Key words: production schedule, optimization, ladle, genetic algorithm, energy consumption

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