| Autor: |
Goloshchapov, K. V., Kobelev, O. A., Titlyanov, A. E. |
| Zdroj: |
Coke & Chemistry; Feb2023, Vol. 66 Issue 2, p82-85, 4p |
| Abstrakt: |
Heat losses in the blast furnace may be decreased by incorporating a heat-insulating insert in the blast channel during assembly of the air tuyere. That decreases coke consumption. In order to avoid stress in the insert when pressure is applied to the tuyere, it is expedient to introduce the insert in the blast channel after most of the tuyere has been assembled. To evaluate this proposal, Ansys software is employed for mathematical modeling: the Fluent module for analysis of the gas dynamics, combustion, and heat transfer; and the Static Structural module for the stress in the insert. The geometry of the mass-produced insert is also modified, by decreasing its internal diameter at the input to the hot-blast channel and increasing the length from the flange to the smallest cross section. Static modeling shows that the insert life is increased and the heat losses with the cooling in the blast channel are decreased if the insert is introduced after most of the tuyere has been assembled. That further decreases coke consumption. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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