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首页> 外文会议>XXI International Mineral Processing Congress >HYDRODYNAMICS OF CONVENTIONAL FLOTATION CELLS WITH EXTERNAL AIR BLOW AND ITS EFFECT ON METALLURGICAL RESULTS
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HYDRODYNAMICS OF CONVENTIONAL FLOTATION CELLS WITH EXTERNAL AIR BLOW AND ITS EFFECT ON METALLURGICAL RESULTS

机译：常规浮选气浮细胞的流体动力学及其对冶金结果的影响。

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This paper presents the relation between power and operating variables (impeller rotational speed and airflow rate) in mechanical (conventional) flotation cells with external air blow. The effect of operating variables and net power on metallurgical results is also examined. The flotation cell used was an automatic one equipped with a conventional vaned disc impeller. The effect of the above parameters was investigated during rougher flotation tests using antimonite ore. From the experimental measurements, the net power for the non-aerated pulp as a function of the impeller rotational speed is derived. The relationship between the power ratio and airflow number is also established. Finally, the net power for the aerated pulp and the power intensity (specific power) are expressed as a function of the impeller speed and the airflow rate. From the metallurgical results it is concluded that the efficiency of the flotation process is affected by the hydrodynamic conditions prevailing in the cell. Based on the above results the optimum operating and hydrodynamic conditions for the flotation of antimonite ore are determined.
机译：本文介绍了带有外部吹气的机械（常规）浮选室中功率与工作变量（叶轮转速和气流速率）之间的关系。还检查了操作变量和净功率对冶金结果的影响。所使用的浮选机是配备有常规叶片盘式叶轮的自动浮选机。在使用锑矿进行的粗选试验中，研究了上述参数的影响。从实验测量中，得出未充气纸浆的净功率与叶轮转速的函数关系。功率比与风量之间的关系也被建立。最后，充气纸浆的净功率和功率强度（比功率）表示为叶轮速度和气流速率的函数。从冶金结果可以得出结论，浮选过程的效率受电解池中普遍存在的流体动力学条件的影响。根据以上结果，确定了锑矿浮选的最佳操作条件和流体力学条件。

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