Тип публикации: статья из журнала
Год издания: 2022
Идентификатор DOI: 10.3103/S0967091222020085
Ключевые слова: automation of steelmaking, dialog control system, low-carbon steel, nonparametric control algorithm
Аннотация: Abstract—: A two-level temperature system is proposed to control heat, secondary treatment and preparation for casting low-carbon G/ET steel grade at BOF Shop-2 of the United West Siberian Iron and Steel Works. Depending on the process chart, it is possible to design different control systems to manage steelmaking trains with indivПоказать полностьюidual operations and processes incorporated in sequential, parallel and/or combined mode. Using an example of G/ET steel grade, the control system to manage a sequential group of units is considered. The control system includes an external control loop, which allows to carry out coordinated control of the shop departments through optimizing the process mode at the facility considering actual operations made at the previous section. A nonparametric dual control algorithm is implemented allowing the decision-making person (DMP) to perform a joint operation introducing control actions into local control loops. We analyzed the temperature regime of an array of heating low-carbon G/ET steel and found that a significant impact on the temperature regime of steel has a duration of steel ladle processing at each stage of BOF–CCM processing route. In accordance with this, the quality criteria for temperature control were specified. The simulation results showed that introducing the control unit with DMP incorporated contributes to the rational for managing the temperature regime of the metal at BOF–CCM stage and, as a consequence, obtaining a preset chemical composition and temperature of steel with better accuracy. This makes it possible to eliminate deviations from the operating schedule of the main units, increase the number of fusions in a series, and increase the rate of continuous casting. © 2022, Allerton Press, Inc.
Журнал: Steel in Translation
Выпуск журнала: Vol. 52, Is. 2
Номера страниц: 215-223
ISSN журнала: 09670912
Издатель: Pleiades Publishing