Setting and automatic conversion method of main process of steel enterprise contract

Abstract

The invention provides a setting and automatic conversion method of a main process of a steel enterprise contract, and relates to the technical field of metallurgical automatic control. In the method,a mathematical model of a distribution relation of a contract on the unit is established by determining an adaptation relationship between customer contract requirements and the unit parameters, under the condition of ensuring the process constraints, the model is used as the basis for accurate calculation, the algorithm architecture based on a population evolution strategy is adopted, and a discrete coding (decoding) algorithm for solving chromosome construction strategies is designed, the algorithm results are decoded to determine a process distribution scheme of each contract, and finallythe overall optimization of the contract process is realized by performing the main and auxiliary process conversion operations. The setting and automatic conversion method of main process of steel enterprise contract can balance the capacity distribution between the steel making and hot rolling parallel units, coordinate the feeding relationship of steel making and hot rolling procedures, reducethe cross logistic, improve the equipment utilization rate, and reduce the production and inventory costs.

Description

technical field [0001] The invention relates to the technical field of metallurgical automatic control, in particular to a method for setting and automatically converting the master contract process of an iron and steel enterprise. Background technique [0002] The production process of iron and steel enterprises not only involves serial production processes with front and rear material supply relationships, but also multiple parallel equipment in the same production process. Iron and steel enterprises organize production according to contracts. Before each contract is put into production, one or more alternative process routes need to be designed according to product quality requirements, which is called manufacturing process flow, or process for short. In the actual production process, it is necessary to determine which process is the main process and which process is the sub-process. Usually material preparation and production organization, especially production planning...

AI Technical Summary

Problems solved by technology

[0005] (1) The manual method is operated after discovering that the distribution of contracts in different workshops of steelmaking (or hot rolling) is unbalanced, so the manual process conversion is a passive process, which is not considered integrated with the preparation of production planning and scheduling, and lacks foresight sex

[0006] (2) The manual method sorts all contracts through simple rules, and then uses the serial sequential strategy to select contracts for process conversion. From the perspective of optimization, this serial sequential strategy is extremely short-sighted. Every time a contract is converted The process only considers the current optimization performance, and does not consider the impact of the subsequent contract process conversion on the global optimization performance

[0007] (3) The manual method only considers the capacity balance indicators of different steelmaking workshops (and different hot rolling workshops) through qualitative analysis, and does not consider other indicators (including cross-material flow, batch production, etc.) Therefore, the effect of process conversion depends to a large extent on the operation level of business personnel, and the solution to this technical problem lacks quantitative and scientific

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