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讨论了不同冶金设备中输入搅拌能大小对渣-钢混合状态的影响。并在油-水休系中测定了苯甲酸的容量传质系数。结果发现顶渣搅拌对加速传质有重要作用,搅拌中是否发生卷渣是能否提高传质速率的关键。本实验条件下测得苯甲酸在油-水中的容量传质系数为(0.03～20.0)×10~(-3)S~(-1)。发生卷渣的临界水表面流速为0.29m/s。由此推算出渣-钢体系中发生卷渣的钢液表面流速为0.63m/s。
The influence of the input stirring energy in different metallurgical equipments on the slag-steel mixing state is discussed. The mass transfer coefficient of benzoic acid was determined in oil-water system. The results showed that the top slag mixing has an important role in accelerating the mass transfer, and whether the entrainment of slag in the mixing process is the key to whether the mass transfer rate can be increased. The mass transfer coefficient of benzoic acid in oil-water was (0.03-20.0) × 10 -3 S -1 under the experimental conditions. The critical water surface flow rate at which slag entrainment occurs is 0.29 m / s. From this, it can be deduced that the flow velocity of the molten steel on the slag-steel system is 0.63m / s.