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Nonparametric control algorithm for metal temperature mode on site BOF – CCM
- Source :
- Izvestiya. Ferrous Metallurgy. 64:447-457
- Publication Year :
- 2021
- Publisher :
- National University of Science and Technology MISiS, 2021.
-
Abstract
- A two-level control system for the temperature mode of smelting, out-of-furnace processing and preparation for casting of low-carbon steel G/ET is proposed in the conditions of BOF shop-2 of JSC “United West Siberian Metallurgical Combine”. Depending on the technological scheme, it is possible to design various control systems for the steelmaking complex with sequential, parallel and combined inclusion of individual operations and processes. The control system of a sequential group of objects is considered on the example of steel G/ET. The control system includes an external control loop that allows coordinated control of the shop departments by optimizing the mode of technological process conducting at the facility, taking into account the actual operation performed at the previous facility. The implemented nonparametric algorithm of dual control allows the decision-maker to perform joint operational adjustment of control actions for local control loops. The temperature mode of the melts of low-carbon steel G/ET is analyzed and it is revealed that the processing time of the steel ladle at each stage of the BOF – CCM technological route has a significant impact on the steel temperature mode. In accordance with this, the criteria for temperature control quality are formed. The results of computational experiment showed that the introduction of a control unit with a decision-maker contributes to the rational control of metal temperature mode in the BOF – CCM site, and as a result, obtaining a given chemical composition and temperature of steel within narrower limits. It allows one to eliminate deviations from the contact schedule of the main units, and to increase the number of melts in the series and the rate of continuous casting.
- Subjects :
- Ladle
Schedule
Temperature control
business.industry
Computer science
Metals and Alloys
Control unit
02 engineering and technology
021001 nanoscience & nanotechnology
Steelmaking
020501 mining & metallurgy
Continuous casting
0205 materials engineering
Casting (metalworking)
Control system
0210 nano-technology
business
Process engineering
Subjects
Details
- ISSN :
- 24102091 and 03680797
- Volume :
- 64
- Database :
- OpenAIRE
- Journal :
- Izvestiya. Ferrous Metallurgy
- Accession number :
- edsair.doi...........68cea45d5c9842df021e9566022a808f