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20世纪前 90年 ,发表了大量有关磨机功率及其预测的科技文献。但令人惊讶的是 ,在这期间 ,没有发表关于对大量综合的工业实测数据进行验证的磨机功耗预测的模型。正是由于缺乏这样的数据 ,大多数模型仅强调磨机的内部动力学 ,并且以简单的假设为依据 ,即认为负荷在磨机中所占据的位置和形状是固定不变的。实验室研究和工业数据表明 ,这些假设对广泛的运行条件并不适用 ,还会引起对现有模型精确预测磨机功耗的能力表示怀疑。而且没有一个模型能用一个方程式来预测磨矿设备 (将自磨机、半自磨机和球磨机当作同一类磨矿设备 )的功耗。通过对磨机负荷动力学的详细研究 ,并结合大量工业磨机功耗数据 ,上述状况在上世纪末得以改善 ,当时建立了一个模型 ,并对它进行了验证。它可精确预测所有湿式滚筒磨机的功耗。本文对此模型加以阐述 ,同时也对更早期为建立磨机功耗模型所做的一些尝试加以评述
In the first 90 years of the 20th century, a large number of scientific and technical literature on mill power and its prediction were published. Surprisingly, however, no model of mill power forecasting for the validation of a large number of comprehensive industrial real-world data was published during this period. It is because of the lack of such data that most models emphasize only the internal dynamics of the mill and are based on the simple assumption that the position and shape occupied by the load in the mill are fixed. Laboratory studies and industry data suggest that these assumptions do not apply to a wide range of operating conditions and raise questions about the ability of existing models to accurately predict mill power consumption. And no single model can use an equation to predict the power consumption of grinding equipment (from mills, semi-autogenous mills and ball mills as the same type of grinding equipment). A detailed study of mill load dynamics, combined with a large number of industrial mill power consumption data, improved at the end of the last century when a model was established and validated. It accurately predicts the power consumption of all wet drum mills. This paper elaborates on this model and also comments on earlier attempts to establish mill power models