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- W3204004412 abstract "A deep understanding of behavior about coke in the blast furnace for smelting Bayan Obo Mine is significantly important to guide its efficient smelting. The feed coke and tuyere coke were taken from 4# blast furnace in Baotou Steel as the research object. The differences in ash content, microscopic crystal structure, functional group, microscopic pore structure and alkali metal content were compared and analyzed. Then the behavior of coke in the blast furnace for smelting Bayan Obo Mine was obtained. The results show that the coke in the blast furnace undergoes a gasification reaction during the descending process, the chemical bonds are broken, the reactivity is improved, and the strength after the reaction is reduced. There are honeycomb-like pores on the surface of the tuyere coke, and the distribution of pore is uneven. In particular, the coke matrix eroded by slag and iron has rough pore walls, and the pores appear to merge. Alkali metals are enriched in the tuyere coke, the content of alkaline oxides is increased, the temperature of the violent reaction is decreased, and the activation energy of the reaction is decreased. The half-width of the (0 0 2) diffraction peak corresponding to the tuyere coke graphite carbon is sharply reduced, the flat peak disappears, and the peak shape is sharp. The grain size increases, the crystal structure tends to be ordered, and the degree of graphitization increases." @default.
- W3204004412 created "2021-10-11" @default.
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- W3204004412 date "2022-02-01" @default.
- W3204004412 modified "2023-10-18" @default.
- W3204004412 title "Behavior of coke in the blast furnace for smelting Bayan Obo Mine" @default.
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- W3204004412 doi "https://doi.org/10.1016/j.fuel.2021.122147" @default.
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