ALLOCATION PLAN FORMING METHOD FOR TRANSPORT CONTAINER, ALLOCATION PLAN FORMING DEVICE FOR TRANSPORT CONTAINER, AND METHOD OF OPERATING STEEL MILL

To efficiently allocate a transport container in a batch process processing unit by considering evaluation criteria that could not be considered in an optimization calculation stage in the past, in the optimization calculation stage.SOLUTION: In an allocation plan forming method for a transport container, an allocation route indicating whether or not to allocate a steel output charge for each molten steel pan is formed, and an allocation route which satisfies a constraint that can be considered by each molten steel pan alone is listed for each molten steel pan (step S2); a mathematical model is formed that includes an objective function which includes an evaluation value of a quantity of the molten steel pans to be used and an evaluation criteria that needs to be considered among the plurality of molten steel pans, and the constraint that needs to be considered among the plurality of molten steel pans (step S3); an allocation route having a smaller value in the mathematical model is selected for each molten steel pan, and a plurality of solutions having the selected allocation route as a solution are output (step S4); and as to the plurality of solutions, a solution that approaches the best final evaluation criteria is output as a final solution based on a quantified final evaluation criteria (step S6).SELECTED DRAWING: Figure 9 【課題】従来は最適化計算段階で考慮できていなかった評価基準を最適化計算段階で考慮することによってバッチプロセスの処理単位に搬送容器を効率よく引き当てること。【解決手段】溶鋼鍋毎に出鋼チャージに引き当てるか否かを表した引当ルートを作成するとともに、各溶鋼鍋単独で考慮可能な制約を充足する引当ルートを溶鋼鍋毎に列挙し（ステップＳ２）、使用する溶鋼鍋数の評価値および複数の溶鋼鍋間で考慮が必要な評価基準を含む目的関数と、複数の溶鋼鍋間で考慮が必要な制約とを含む数理モデルを作成し（ステップＳ３）、その数理モデルの値が小さくなる引当ルートを溶鋼鍋毎に選択するとともに、当該選択された引当ルートを解とする複数の解を出力し（ステップＳ４）、その複数の解について、定量化された最終評価基準に基づき、当該最終評価基準が最良に近づく解を最終解として出力する（ステップＳ６）。【選択図】図９