Abstract The fraction of mill volume occupied by rocks, grinding media and slurry in grinding mills are dominant factors influencing AG and SAG mill power draw and grinding rate. Hence accurate mill filling measurements are needed for modelling mills. To that end, it is usually necessary to enter the confined space of a grinding mill, a task that involves a degree of safety risk and a potentially lengthy plant stoppage. This paper discusses a range of available methods for measuring and calculating mill filling and introduces a new technique for accurately measuring filling that eliminates the need to enter the mill in most cases. The new method offers engineers and researchers a safer and faster method for quantifying the filling level in industrial SAG and ball mills, and allows the surface profile to be surveyed, without requiring the contents to be level. The paper also details formulas for calculating the filling level and load volume, which unlike previously published equations, also consider the volume in the conical ends and the volume occupied by the mill shell lifters.

中文翻译：

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一种改进的磨机充填量测量及负荷体积和质量估算方法

摘要 磨机中岩石、磨矿介质和矿浆所占磨机体积的比例是影响AG和SAG磨机功率和磨矿率的主要因素。因此需要精确的磨机填充测量来模拟磨机。为此，通常需要进入磨机的密闭空间，这项任务涉及一定程度的安全风险和潜在的长时间工厂停工。本文讨论了一系列用于测量和计算磨机填料的可用方法，并介绍了一种在大多数情况下无需进入磨机即可准确测量填料的新技术。新方法为工程师和研究人员提供了一种更安全、更快速的方法来量化工业 SAG 和球磨机的填充水平，并允许对表面轮廓进行调查，而不要求内容是水平的。该论文还详细介绍了填充液位和负载体积的计算公式，与之前发布的公式不同，该公式还考虑了圆锥端的体积和磨机壳提升器所占的体积。