Productivity load equalization method for cold rolling final finishing units of steel enterprise

Abstract

The invention discloses a method for balancing the capacity load of a cold rolling finishing unit in an iron and steel enterprise, and relates to the technical field of automation. The method comprises the following steps: (1) downloading the batch coiled sheet data in a data warehouse of the iron and steel enterprise; (2) judging whether the present capacity condition of the cold rolling finishing unit need balance adjustment, comparing the number of days T which is needed for producing the monthly batch coiled sheets by the cold rolling finishing unit with the remaining number of days of the month tr, and adjusting the batch coiled sheet if the T is greater than tr; (3) determining the batch coiled sheets to be adjusted based on the production technologies and the constraints of the cold rolling finishing unit and the related upstream and downstream units; (4) establishing an mathematical model for balancing and optimizing the capacity of the cold rolling finishing unit by taking the batch coiled sheets to be adjusted as objects; (5) solving the mathematical model for balancing and optimizing the capacity of the unit by a scatter search method, and determining the optimized adjustment strategy of the batch coiled sheets; and (6) displaying the optimized adjustment results by a graph mode and a data mode. The method can help find out problems in the capacity of the unit in advance, and is applied to the production process of the cold rolling finishing unit.

Description

technical field [0001] The invention belongs to the technical field of cold-rolling and finishing production in iron and steel enterprises, relates to automation technology, and in particular relates to a method for balancing production capacity and load of cold-rolling and finishing units in iron and steel enterprises. Background technique [0002] The cold rolling and finishing unit of iron and steel enterprises undertakes the task of producing finished products of cold rolled high-quality steel coils (plates) after annealing, galvanizing, and tinning. The specific work is to press the steel coils (plates) from the previous process into Users request to cut into steel plates, narrow gauge steel coils or smaller steel coils, and do surface treatment and oiled packaging. In terms of machine settings, cold rolling and finishing units can be subdivided into specialized cross-cutting units, slitting units and recoiling units. The technological process of the cross-cutting unit...

AI Technical Summary

Problems solved by technology

This method has the following disadvantages: 1. The forecast of the capacity and load of the unit is not timely enough, and it is very passive to solve the problem when it occurs, and it is difficult to obtain a good adjustment result in a limited time; 2. Due to the large amount of data, factors to be considered It is complicated, and the judgment of production capacity and load is often not accurate enough; at the same time, it is difficult to consider the requirements of production capacity, production quality, logistics balance, customer satisfaction and other aspects at the same time by manual operation, so it is difficult to obtain a satisfactory adjustment plan by manual operation

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