论文部分内容阅读
本文应用流体力学的基本理论,通过实验室的高炉模型试验,对高炉炉身煤气流(干区)作了初步探讨。用稳定的平面流的方法对“干区”气流运动规律作了数学描述,对正分装和倒分装所形成的水平料面和“V”型料面,以及几种均匀和非均匀散料床的流体阻力作了测定和计算,对不同焦-球界面所产生的附加流体阻力损失亦作了理论分析和测定。提出实际高炉冶炼过程中,通过测定各部位的透气性指数(σ~2/ΔP)来实现最佳煤气流分布控制的建议。
In this paper, the basic theory of fluid mechanics, through the laboratory blast furnace model tests, blast furnace shaft gas flow (dry area) made a preliminary discussion. The steady-state planar flow method is used to describe the law of gas flow in “dry zone”. The horizontal and vertical “V” profiles formed by the positive and the negative sub-packages, as well as several uniform and inhomogeneous The fluid resistance of the bed was measured and calculated. Theoretical analysis and determination of the additional fluid resistance loss caused by different coke-sphere interfaces were also made. In the process of actual blast furnace smelting, the optimal gas flow distribution control is proposed by measuring the air permeability index (σ ~ 2 / ΔP) of each part.