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Flow Characteristics in a Blast Furnace Trough

机译：高炉槽内的流动特性

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The aim of this study was to better understand flow characteristics in the taphole stream impingement region of a blast furnace trough, and its effect on localized trough refractory wear. A 1/5th scale perspex model was used, and oil and water were adopted to simulate the molten iron and slag, respectively. Velocities and turbulence intensities in the region adjacent to the trough wall were measured by means of laser doppler velocimetry (LDV). This study highlighted the entrainment of bubbles by the impinging taphole stream, resulting in a buoyancy-driven flow pattern within the trough. The identified buoyancy-driven flow resulted in high velocities and turbulence intensities in the region where maximum refractory wear occurred. Methods for minimizing the influence of the buoyancy-driven flow, and resultant high velocities and turbulence intensities are proposed in this paper.
机译：这项研究的目的是更好地了解高炉水槽出铁口流撞击区域的流动特性及其对局部水槽耐火材料磨损的影响。使用1/5比例的有机玻璃模型，分别采用油和水模拟铁水和矿渣。借助于激光多普勒测速仪（LDV）测量与槽壁相邻的区域中的速度和湍流强度。这项研究强调了撞击的出铁孔流会夹带气泡，从而在槽内产生浮力驱动的流动模式。所确定的由浮力驱动的流动在发生最大耐火材料磨损的区域中导致了较高的速度和湍流强度。本文提出了最小化浮力驱动流的影响以及由此产生的高速和湍流强度的方法。

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