煤用概率分级筛数学模型的研究

STUDY OF A MATHEMSTIC MODEL OF PROBABILITY SCREEN FOR COAL SIZING

通过平均触网概率的提出，首次建立了筛分机操作参数与筛分效果之间有着定量关系的煤用概率分级筛筛分数学模型。对该模型得到的理论预测值与实验实测值进行了对比检验，结果表明，该模型具有模型参数少、预测精度高、适用范围广的特点。

Based on a concept of average contact mesh probability a mathematic model of probability screen was established,which shows the quantitative relation between the operating parameters and screening efficiency. A comparison of the calculated data with the test data indicates that this model has the merits of less parameters,accurate prediction and wide application.