Influence of Slag Flow Speed on Corrosion Rate of Blast Furnace Main Trough

DOI Web Site 1 Citations 17 References

Bibliographic Information

Other Title
  • 高炉主樋の損耗速度におよぼすスラグ流速の影響
  • コウロシュトイ ノ ソンモウ ソクド ニ オヨボス スラグ リュウソク ノ エイキョウ

Search this article

Abstract

To analyze corrosion rate variations of blast furnace main trough numerically, the mass transfer model was applied hypothesizing that the corrosion rate increases with an increase in slag flow speed. Depending on the Fick’s law, the model took account of refractory solubility to slag, slag flow speed, diffusion coefficient of a refractory to slag, and slag viscosity. Applying the model to corrosion rate analysis of a commercially operated blast furnace trough, the overall diffusion coefficients were obtained as 3.03×10－10m2･s－1 for slag line and 1.15×10－9m2･s－1 for metal line. These values were agreed with laboratory measured values investigated in literatures by the digit. Moreover, the difference of the corrosion rate between impact zone (upper part) and lower part of a main trough was explained by slag flow speed variation quantitatively. In addition, influences of temperature and saturation degree of refractory to slag on corrosion rate were assessed by the model.

Journal

  • Taikabutsu

    Taikabutsu 62 (11), 595-60, 2010-11-01

    The Technical Association of Refractoreies,Japan

Citations (1)*help

See more

References(17)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top