Hu Xiaodong,Li Junhua,Li Zhengang,et al.Smelting Process Exploration on CO2 Top Blowing of 100 t Dephosphorization Converter[J].Special Steel,2025,46(05):19-23.
Hu Xiaodong,Li Junhua,Li Zhengang,et al.Smelting Process Exploration on CO2 Top Blowing of 100 t Dephosphorization Converter[J].Special Steel,2025,46(05):19-23. DOI: 10.20057/j.1003-8620.2025-00030.
Smelting Process Exploration on CO2 Top Blowing of 100 t Dephosphorization Converter
100 t dephosphorization converter carried out the top blowing CO
2
industrial test by JISCO stainless steel branch , analyzed the dephosphorization converter top blowing mixed with different proportions of CO
2
on the smelting end of the slag
w
[FeO], dephosphorization rate, molten iron yield, steel temperature and lime block consumption. In this paper, five groups of test schemes were set up, and the proportions of top-blowing CO
2
mixing were 5%, 10%, 15% and 20%, and the control test schemes was added at the same time. The test results show that: the top blowing CO
2
mixing can improve the thermodynamic and kinetic conditions of the reaction in the dephosphorization converter furnace, and improve the efficiency of dephosphorization; when the top blowing CO
2
mixing ratio is 15%,
w
[FeO] in the slag reaches 19.95%;The efficiency of dephosphorization reaches 82.82%; the rate of molten iron yield reaches 97.8%; the top blowing CO