Cold rolling continuous annealing units steel coil optimizing ordering method and its system

Abstract

The invention provides an optimum cold rolling continuous annealing unit steel coil sorting method and a system thereof, belonging to the field of metal material processing information technique; the optimum method comprises the steps as follows: 1: the candidate steel coil is respectively sorted from highness to lowness and from lowness to highness according to the annealing temperature so as to form two initial sorting proposal; each initial sorting proposal is optimized by adopting width preference sorting or thickness preference sorting so as to obtain a plurality of groups of initial feasible sorting proposals; 2: the sorting proposal with the minimum optimum object value is selected out of the initial steel coil sorting proposals so as to be taken as the initial feasible production plan; 3: the initial feasible production plan is adjusted by using exchanging neighborhood tabu searching and alternative path conversion neighborhood searching and by taking the minimum optimum sorting model object value as the object. The corresponding system is provided on the basis of the method of the invention; therefore, switching during the execution process of the production plan is reduced, the transition is smooth, the product quality is improved and the yield is improved.

Description

technical field [0001] The invention belongs to the technical field of metal material processing information and relates to automation technology, in particular to a technical method and system for optimizing the sorting of steel coils in a continuous annealing unit for production and application in the metallurgical industry. Background technique [0002] The production scheduling problem of continuous annealing of metal materials is the main content of the production management of metallurgical enterprises. The quality of scheduling is directly related to the production efficiency of workshops, the quality of products and the economic benefits of factories. [0003] Take a steel factory as an example: the raw material used for continuous annealing strip steel is mainly pickled steel coils. After the hot-rolled steel coils are pickled and rolled, due to the large amount of deformation of the steel during the rolling process, the grain structure is extended and Hardening, wo...

AI Technical Summary

Problems solved by technology

In the existing research, the method of tabu search is generally used to solve the sequencing and scheduling problems of hot rolling, cold rolling, continuous galvanizing, and color coating production lines, and rarely involves continuous annealing production lines. Process constraints are all based on the jump of factors such as specifications between two adjacent steel coils, and rarely involve change trends, so that not only the specifications and annealing curve jumps between two steel coils must be considered in the process of coil sorting , it is also necessary to consider whether the variation trend of the specification and annealing temperature in the production plan is smooth, which makes the existing method unable to be used to solve the problem considered in the present invention

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