Steelmaking-continuous casting rescheduling method for solving continuous casting machine fault

A technology for rescheduling and continuous casting machines, applied in the field of metallurgical control, can solve problems such as failures of continuous casting machines that are not considered

Active Publication Date: 2017-05-03
CHONGQING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In order to overcome the defects in the above-mentioned prior art, the purpose of the present invention is to provide a steelmaking-continuous casting rescheduling metho

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  • Steelmaking-continuous casting rescheduling method for solving continuous casting machine fault
  • Steelmaking-continuous casting rescheduling method for solving continuous casting machine fault
  • Steelmaking-continuous casting rescheduling method for solving continuous casting machine fault

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Embodiment Construction

[0075] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0076] figure 1 It is the three production links mainly included in the existing steelmaking-continuous casting process: steelmaking, refining and continuous casting. The steelmaking and continuous casting links each include a parallel unit, while the refining link generally includes multiple parallel units to meet different refining process requirements. General steelmaking-continuous casting production process such as figure 1 Shown: The high-temperature molten iron transported from the blast furnace is mixed into the converter for...

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Abstract

The continuous casting machine fault problem involves the casting characteristics of casting times, so that the conventional rescheduling method of steelmaking-continuous casting production for processing equipment faults is difficult to apply. The invention provides a steelmaking-continuous casting rescheduling method for solving a continuous casting machine fault, specifically comprising the steps of: establishing a rescheduling optimization model according to the difference of rescheduling strategies of different heat processes treatment after the continuous casting machine fault on the rescheduling process; and designing a new hybrid algorithm having the advantages of global searching ability of a comprehensive genetic algorithm and local searching ability of a variable neighborhood searching algorithm to perform iterative optimization of an optimal solution. The algorithm has the main characteristics: initial solutions of chromosomes are quickly obtained by using a decoding heuristic algorithm on the premise of complex constraint at the slack; and the quality of each initial solution is improved by using the variable neighborhood searching algorithm before population crossover mutation, wherein different neighborhood structures are designed for non-feasible solutions and feasible solutions. The method can effectively solve the rescheduling problem under the continuous casting machine fault.

Description

technical field [0001] The invention relates to the technical field of metallurgical control, in particular to a steelmaking-continuous casting rescheduling method for solving continuous casting machine faults. Background technique [0002] Steelmaking-continuous casting is a key link in the production process of modern iron and steel enterprises. The steelmaking-continuous casting production process generally includes three stages: steelmaking, refining and continuous casting. Production scheduling plays an important role in the steelmaking-continuous casting production process. Generally speaking, static scheduling is generated before production starts. In static scheduling, it is assumed that all information is predictable and remains unchanged during execution. However, in the actual production process, various disturbing events (such as machine failure) will lead to the failure of the currently executing scheduling scheme. [0003] The function of the continuous castin...

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Application Information

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IPC IPC(8): G06N3/12G06Q10/06
CPCG06N3/126G06Q10/0633
Inventor 郑忠龙建宇高小强呼万哲黄世鹏徐兆俊
Owner CHONGQING UNIV
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