Computer-aided simulation of steelmaking-continuous casting production scheduling
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摘要: 煉鋼-連鑄區段的生產調度包括爐次計劃、澆次計劃的生成和時間、設備的分配,以及針對各種擾動的動態調整.根據鋼種和規格的限制,提出了最優爐次計劃模型,并采用禁忌搜索算法進行求解;根據爐次計劃和連鑄機連澆限制,生成澆次計劃;根據爐機匹配和等待時間最小原則,生成靜態調度甘特圖,并對仿真過程中出現的出鋼延遲提出了動態調度的策略和算法.仿真結果表明,基于模型的動態調度策略能夠有效地解決出鋼延遲問題.Abstract: Steelmaking-continuous casting production scheduling includes the drawing of a furnace charge plan and a cast plan,the allocation of time and equipments,and the dynamic adjustment to kinds of disturbances.An optimal furnace charge plan model was established based on the constraints of grade and specification and an algorithm with taboo search was used to solve the model.The cast plan was presented according to the furnace charge plan and the limitation of continuous casting.The principles of matching between converters and casters and minimizing the waiting time were used to draw the Gantt chart of static scheduling. A dynamic scheduling strategy and its algorithm were proposed for tapping tardiness in the simulation process. Simulation result shows that the strategy based on the model effectively solves the problem of tapping tardiness.
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Key words:
- production scheduling /
- taboo search /
- Gantt chart /
- simulation
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