【摘要】 本文在空气—水系统中测量了侧吹反应器的溶液混匀时间、喷射区中心轨迹和搅拌范围,并考察了喷射角度、安装喷嘴的高度、喷吹流量、加料口布置、喷嘴大小和数量对混匀时间、喷射区中心轨迹和搅拌范围的影响,建立了计算搅拌范围的经验公式,为设计适宜枪距提供了依据,从质量守恒定律、动量和力的平衡方程导出了侧吹喷射区内的气、液运动模型,用该模型算出的喷射区中心轨迹与实验结果基本一致,该模型适用于估算反应炉的最佳宽度,并依据实验结果和理论分析对侧吹熔池炼铜法的改进提出了建议。更多还原

【Abstract】 The mixing time of liquid, trajectory of centerline in the jet zone and stirred region of side-blown reactor have been measured in a air-water system. The influences of jet angle, nozzle set height, flow rate of jet, feeder installation, size and number of nozzles on the mixing time, trajectory of centerline in the jet zone and stirred region are also investigated. The empirical formulas for calculating stirred region has been established, and therefore the references for design optimum lance intervals has been proposed. Mathematical models for gas-liquid motion in the jet zone of side blown reactor have been deduced by use of mass balances, momentum and force balances. The trajectories of jet centerline in the jet zone calculated by use of above models are in good agreement with experiments. These models can also be applied to prediction of optimum width of sideblown reactor. Recommendations for reconstruction of side-blown matting process have been proposed according to a number of experiments and theoretical analysis.更多还原