DYNAMIC MODEL AND SIMULATION OF EAF STEELMAKING PROCESS
来源期刊：Acta Metallurgica Sinica2003年第3期
论文作者：Q.Li X.Hong
Key words：EAF; dynamic model; simulation;
Abstract: Based on mass and energy balances and theories of thermodynamics and kinetics, a dynamic model in conjunction with relative operation parameters was derived. With this model, the EAF process in later stage of scarp melting was dynamically described,including time dependent variations of bath temperature, slag quantity, compositions of steel, slag and off-gas, etc. Steelmaking process in a domestic 100 ton UHP AC EAF was chosen as a computational example, and the simulated variations of temperature of hot metal and element contents was shown consistent with the actual process measurements within average error scopes of |△T| ≤15K, |[△%C]| ≤0.036,|[△%Si]| ≤0.00027, |[△%Mn]| ≤0.002, |[△%P]| ≤0.00089 and |[△%S]| ≤0.001 respectively at the test points. The model will be extended to predict the whole production process including scrap melting procedure and evaluate its energy and material consumption, the production efficiency, etc., which will provide assistance for the improvement of EAF operation and control.
Q.Li1，X.Hong1
(1.Shanghai Enhanced Laboratory of Ferrometallurgy, Shanghai University, Shanghai,200072, China)
Abstract:Based on mass and energy balances and theories of thermodynamics and kinetics, a dynamic model in conjunction with relative operation parameters was derived. With this model, the EAF process in later stage of scarp melting was dynamically described,including time dependent variations of bath temperature, slag quantity, compositions of steel, slag and off-gas, etc. Steelmaking process in a domestic 100 ton UHP AC EAF was chosen as a computational example, and the simulated variations of temperature of hot metal and element contents was shown consistent with the actual process measurements within average error scopes of |△T| ≤15K, |[△%C]| ≤0.036,|[△%Si]| ≤0.00027, |[△%Mn]| ≤0.002, |[△%P]| ≤0.00089 and |[△%S]| ≤0.001 respectively at the test points. The model will be extended to predict the whole production process including scrap melting procedure and evaluate its energy and material consumption, the production efficiency, etc., which will provide assistance for the improvement of EAF operation and control.
Key words:EAF; dynamic model; simulation;
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