Method for obtaining optimal heating curve of low-carbon steel

Abstract

The invention relates to a method for obtaining an optimal heating curve of a low-carbon steel, and the method comprises the following steps: 1, collecting a blank type and a fuel type of a steel rolling heating furnace and the parameters of a furnace body structure, and setting a smallest rhythm; 2, building a comprehensive balance model, taking the rolling start temperature as the target, of thesteel rolling heating furnace, dividing the heating furnace into a plurality of micro-element segments, and calculating the heat balance of each micro-element; 3, analyzing a nonlinear comprehensiveheat balance model through a genetic algorithm, and obtaining an optimal temperature rise curve of the low-carbon steel of the steel rolling heating furnace of a certain structure; 4, applying the optimal temperature rise curve to a production site. The method takes the thermophysical property of a billet as the basis, and the comprehensive heat balance model of the steel rolling heating furnace is built, and the optimal temperature rise curve of the low-carbon steel in the steel rolling heating furnace is obtained, and is applied to an enterprise control system, thereby achieving the purposesof improving the heating quality of the low-carbon steel and saving energy, and enabling the operation of the heating furnace to be more reasonable.

Description

technical field [0001] The invention relates to the technical field of low-carbon steel production, in particular to a method for obtaining an optimal heating curve of low-carbon steel. Background technique [0002] The operating procedures of the steel rolling heating furnace in the existing enterprises are based on the operating experience, and there is a lack of efficient and low-cost optimization methods. The optimization of the operating procedures needs to be carried out through a large number of experiments. First, this method needs to be equipped with relevant special equipment, and second, it does not consider the particularity of the heating furnace, which is quite out of touch with the production of the enterprise. Low-carbon steel occupies a large proportion in the product structure of metallurgical enterprises. The heating process of low-carbon steel in the steel rolling heating furnace not only affects the quality of finished steel, but also affects the energy ...

AI Technical Summary

Problems solved by technology

However, this method has major defects. First, determining the optimal heating curve requires multiple experiments, and the cost is high; The curve has little significance for the production guidance of enterprises

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