Experimental observations of lifter parameters and mill operation on power draw and liner impact loading
Experimental observations of lifter parameters and mill operation on power draw and liner impact loading
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DOI：
10.1016/j.mineng.2010.07.017
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发表时间：
2010-12-01
影响因子：
4.8
通讯作者：
Mansouri, S. H.
中科院分区：
文献类型：
--
作者：
Rezaeizadeh, M.;Fooladi, M.;Mansouri, S. H.
在选矿过程中，磨机功率对工艺的经济性起着重要的作用，是一个关键的设计标准。磨粉机功率受一系列参数的影响，如：装料和浆料填充、提升机的数量和几何形状以及磨粉机速度。得出这些参数的最佳条件将导致磨机的高效运行。此外，受装料和浆料填充、提升机数量、提升机几何形状和磨机速度影响的冲击载荷的最佳利用应能提高磨机效率。本文利用室内实验轧机研究了这些操作参数的影响。结果表明，提升机的数量、提升机的高度、磨机装药和磨机速度对提升机的功率均有影响。总体结果表明，增加磨机速度、提升机数量和提升机高度，并显著减少磨机装药充填，可以提高冲击值和冲击频率，从而提高整体效率。磨机功率与提升器间距（S/H）和磨机速度之间存在简单的线性回归关系。这些参数给出了在理想条件下可能的最佳磨机操作条件的指示。(c) 2010 Elsevier Ltd.版权所有。
In mineral processing the mill power plays a major role in the economics of the process and is a critical design criterion. The mill power is influenced by a range of parameters such as: charge and slurry filling, number and geometry of lifters, and mill speed. Deriving the optimum conditions of these parameters should lead to efficient mill operation. Additionally, the optimum utilization of the impact loads that are affected by charge and slurry filling, number of lifters, geometry of lifter and mill speed should result in increased milling efficiency. In this work the influence of these operating parameters were investigated using a laboratory experimental mill. It is found that the power, are affected by number of lifters, lifter height, mill charge and mill speed. Overall the results showed that increasing the mill velocity, number of lifters, and height of lifter and significantly decreasing the mill charge filling results in a higher impact value and impact frequency that may also increase overall efficiency. A simple linear regression relationship has been demonstrated for mill power as a function of lifter spacing (S/H) and mill speed. These parameters give an indication of the possible optimum mill operating conditions in an idealised condition. (c) 2010 Elsevier Ltd. All rights reserved.