The hydrodynamic experiments with countercurrent flow of gas and liquid simulating the flow conditions in the lower zone of the blast furnace were carried out in a packed bed to clarify the gas pressure drop characteristics in that zone.

• 摘要为了阐明高炉下部气相压降的特性，在填料床内模拟高炉下部流动条件进行了气液两相逆流的流体力学实验。