A Rescheduling Method for Operation Time Delay Disturbance in Steelmaking and Continuous Casting Production Process

In the steelmaking and continuous casting (SMCC) production process, operation time delay may lead to casting break or processing conflict so that the initial scheduling plan becomes unrealizable. Existing research methods are difficult to guarantee the accuracy of the model and successful applicati...

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Bibliographic Details
Published in:Journal of iron and steel research, international international, 2012-12, Vol.19 (12), p.33-41
Main Authors: YU, Sheng-ping, PAN, Quan-ke
Format: Article
Language:English
Subjects:
Applied and Technical Physics
Continuous casting
disturbance
Engineering
heuristic algorithm
Iron and steel industry
Iron and steel making
Machines
Manufacturing
Materials Engineering
Materials Science
Metallic Materials
Nonlinear programming
Physical Chemistry
Processes
Rescheduling
Scheduling
SMCC
Steels
Time delay
工艺操作
干扰
应用程序
时间延迟
炼钢
编排方法
连铸生产过程
非线性规划模型
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Summary:In the steelmaking and continuous casting (SMCC) production process, operation time delay may lead to casting break or processing conflict so that the initial scheduling plan becomes unrealizable. Existing research methods are difficult to guarantee the accuracy of the model and successful application to actual applications. The rescheduling problem in response to operation time delay is firstly analyzed. This is then followed by the establishment of a novel multi-objective nonlinear programming model (MONPM). In specifications, a three-stage rescheduling method is proposed including the batches splitting (BS), forward scheduling method (FSM) and backward scheduling method (BSM). As a result, the real-time application shows that the proposed rescheduling method efficiently ensures the continuous casting and dramatically shortens the redundant waiting time for molten steel in very short rescheduling time.
ISSN:1006-706X
2210-3988
DOI:10.1016/S1006-706X(13)60029-1