Analyses of blast furnace raceway by a coupled model of the discrete element method and finite difference method.
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Accession number;05A0248807
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| Title;Analyses of blast furnace raceway by a coupled model of the discrete element method and finite difference method. |
| Author;
NOGAMI HIROSHI
(Sumitomo Metal Industries, Ltd., Iron & Steel Res. Lab., JPN)
TAKATANI KOJI
(Sumitomo Metal Industries, Ltd., Iron & Steel Res. Lab., JPN)
YAMAOKA HIDEYUKI
(Sumitomo Metal Industries, Ltd., Iron & Steel Res. Lab., JPN)
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Journal Title;Current Advances in Materials and Processes
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Journal Code:X0994A
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ISSN:0914-6628
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VOL.18;NO.1;PAGE.76-79(2005)
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| Figure&Table&Reference;FIG.4, TBL.4, REF.6 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;The mathematical model for investigating and verifying the complete combustion methods of pulverized coal of a great amount injected to a blast furnace at tuyeres are explained. The contents of the mathematical modeling considering the behavior of bulky coke, and dynamics, heat transfer and reaction phenomena of solid and vapor phases based on the discrete element method developed by the authors are explained. The model is a coupled 3D non-stationary model of the discrete element method and the finite difference method. The treatment method of the material existing in the raceway like vapor phase, coke phase, and pulverized coal phase, the preconditions for the all phases, the basic equations, and computational methods are shown. The mathematical model is verified by the all-coke operation and pulverized coal operation results. The shape of the raceway obtained by the computations is confirmed almost to agree with experimentally measured shape, and thus, the method is proven to be employed for predicting raceway shapes, combustion at the raceway, and the shell. |
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