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为了研究高压辊磨机出料的粒度分布及其粉磨速率,采用分形理论方法,建立并验证了高压辊磨机出料粒度分布的数学模型,考察了高压辊磨机操作因素对该数学模型中唯一参数分形维数的影响,最后得到高压辊磨机粉磨速率的一般表达式.研究结果表明:该数学模型所得结果与试验值的最大误差为6.64%,最佳预测区间为0~5mm;高压辊磨机的工作压力与分形维数是非线性关系,分形维数随液压油缸压力的增加而增加,并在液压油缸工作压力达到临界点10MPa时停止增加;与此对应的是高压辊磨机的辊面转速对分形维数几乎无影响.
In order to study the particle size distribution and the grinding rate of the high pressure roller mill, the fractal theory was used to establish and verify the mathematical model of the particle size distribution of the high pressure roller mill. The effects of high pressure roller mill operating parameters on the mathematical model And the fractal dimension of the only parameter in the high pressure roller mill.The results show that the maximum error of the mathematical model is 6.64% and the best prediction range is 0 ~ 5mm . The working pressure and the fractal dimension of the high-pressure roller mill are non-linear. The fractal dimension increases with the increase of the hydraulic cylinder pressure and stops increasing when the working pressure of the hydraulic cylinder reaches the critical point of 10 MPa. Correspondingly, Machine roll speed almost no effect on the fractal dimension.