Online optimization control system for copper oxygen-enriched side-blowing smelting process

Abstract

The invention discloses an online optimization control system for a copper oxygen-enriched side-blown smelting process, and the system comprises a batching calculation model, a material balance model, a heat balance calculation model, a knowledge base, and a fuzzy control model. The material balance model is used for ensuring that the mass of a fed material and the mass of a product in the ingredient calculation model are kept balanced, the heat balance model is used for ensuring that the heat of the fed material and the heat of the product in the ingredient calculation model are kept balanced, the knowledge base comprises expert knowledge of side-blowing smelting and field operation experience, and the fuzzy control model is based on the knowledge base. Control rule modeling is adopted for the control parameters, so that the control parameters are converted into languages which can be realized by program codes, and optimization and adjustment of the control parameters are realized. According to the method, on the basis of side-blowing process mechanism analysis, the stability of target parameters in the side-blowing process is taken as a target, the optimal values of the control parameters are dynamically obtained by utilizing the fuzzy control model, and intelligent optimization control of the side-blowing production process is realized.

Description

technical field [0001] The invention relates to the technical field of parameter optimization of copper oxygen-enriched side-blowing smelting process, in particular to an online optimization control system for copper oxygen-enriched side-blowing smelting process. Background technique [0002] Copper oxygen-enriched side-blowing smelting is a complex, nonlinear time-varying, strongly coupled continuous operation process. All process parameters, various disturbance factors and related operating parameters have nonlinear relationships in the process, resulting in the accuracy of linear calculations. Low, it is difficult to accurately control the furnace conditions to meet the requirements of stable production. [0003] Traditional control theory is based on precise mathematical models. However, due to the nonlinear, time-varying, uncertain and incomplete characteristics of copper-oxygen-enriched side blowing, it is impossible to obtain precise mathematical models. Due to the l...

AI Technical Summary

Problems solved by technology

[0004] In the actual side-blowing production process, the control of the copper-oxygen-enriched side-blowing smelting process is based on a static mechanism model based on material balance and heat balance. Due to the different qualities of operators and complex and diverse working conditions, only the beginning and end of smelting are considered. Can not meet the needs of precise process control

At the same time, the establishment of the mechanism model requires some specific assumptions and simplifications for the side-blowing smelting process, which leads to a certain deviation between the calculation results of the mechanism model and the actual situation.

Therefore, how to solve the problems of low calculation accuracy, unstable quality control and high experience dependence in the existing technology, and realize the precise control of the process parameters of the copper oxygen-enriched side-blowing smelting process is very important for realizing long-term stable continuous production the meaning of

Images