Sintering distribution process optimized control method based on multi-objective genetic algorithm

Abstract

The invention discloses a sintering distribution process optimized control method based on a multi-objective genetic algorithm, which is characterized by comprising the following steps: 1, building an optimization model of segregation distribution, namely establishing a sample collection by using a large-flue negative pressure, the rotation speed of a nine-roller distributor, the feed level of a feed tank and the depth of a feed bed and establishing a segregation distribution comprehensive satisfaction function; and 2, with a goal of optimizing segregation distribution comprehensive satisfaction, constructing the optimization model on the basis of the principle of the multi-objective genetic algorithm so as to optimize the set values of the depth of the feed bed and the rotation speed of the nine-roller distributor. In the invention, the set values of the depth of the feed bed and the degree of segregation are optimized according to the actual conditions of sintering distribution, so that the setting of the depth of the feed bed and the degree of segregation always adapts to the change of working conditions, and the advantage of deep-feed bed sintering is fully played.

Description

technical field [0001] The invention belongs to the technical field of sintering production process control, and relates to an optimal control method for sintering material distribution process based on a multi-objective genetic algorithm. technical background [0002] Segregation distribution is an important part of sintering production. It is of great significance to realize the effective use of segregation degree in the distribution process and the stable control of the distribution process to ensure high quality and high yield of sintering and realize energy saving and emission reduction of sintering. The current control of the sintering process is mostly closed-loop control with the feedback of the thickness of the material layer. The actual production shows that the change of real-time working conditions has different requirements for the thickness of the material layer, and the change of the speed of the trolley affects the stability of the material layer thickness. T...

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Problems solved by technology

The current control of the sintering process is mostly closed-loop control with the feedback of the thickness of the material layer. The actual production shows that the change of real-time working conditions has different requirements for the thickness of the material layer, and the change of the speed of the trolley affects the stability of the material layer thickness. The existing control method does not adjust the setting of the thickness of the material layer according to the actual situation of the sintered material, nor does it track and stabilize the thickness of the material layer well, and because the segregation process of the material is difficult to describe, it is also difficult to determine the degree of segregation of the material layer. control

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