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首页> 外文期刊>Steel Research International >Effects of Blast Furnace Main Trough Geometry on the Slag-Metal Separation Based on Numerical Simulation
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Effects of Blast Furnace Main Trough Geometry on the Slag-Metal Separation Based on Numerical Simulation

机译：高炉主要槽几何对数值模拟的基渣分离的影响

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The complete separation of hot metal from slag is expected in the main trough of a blast furnace. However, in practice slag may take some hot metals away when it goes through the slag port. Therefore, it is important to optimize the slag-metal separation in order to decrease the metal loss associated with the slag. The present work establishes a three dimensional unsteady model of the main trough of a blast furnace in Panzhihua Steel. The model is then applied to investigate the effects of the width, depth, and bottom slope on the flow behavior and slag-metal separation. The results show that the high velocity regions and the velocity difference between the hot metal and slag are the main cause of hot metal drawn into the slag. The change of main trough geometry has a major impact on the flow behavior and slag-metal separation. The slag-metal separation is improved a lot by decreasing the bottom slope of the main trough or increasing its width. Therefore, it is strongly recommended that the main trough have a horizontal bottom or that its width be increased in order to obtain a better slag-metal separation.
机译：在高炉的主槽中预期从渣中完全分离炉渣。然而，在实践中，炉渣可能会在通过炉渣端口时采取一些热金属。因此，重要的是优化渣金属分离，以降低与炉渣相关的金属损耗。本作建立了攀枝花钢大炉主要槽的三维不稳定模型。然后应用该模型以研究宽度，深度和底部斜率对流动性能和渣 - 金属分离的影响。结果表明，热金属和炉渣之间的高速区和速度差是吸入炉渣的热金属的主要原因。主槽几何形状的变化对流动行为和渣 - 金属分离产生了重大影响。通过减小主槽的底斜率或增加其宽度，通过减少熔渣 - 金属分离。因此，强烈建议主槽具有水平底部或其宽度增加，以获得更好的渣金属分离。

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