辊式磨平均曲面辊压计算方法*

对辊式磨液压系统压力、磨辊与物料的接触面以及磨辊受力进行了分析,提出了一种新的辊式磨辊压计算方法——平均曲面辊压计算方法,并进行了理论公式推导。通过实例计算,从辊压数值计算大小、磨机主要受力部件的应力应变情况和磨机功率三个角度,将平均曲面辊压方法与传统平均物料辊压方法进行对比,验证了该计算方法的正确性和准确性。根据推导出的平均曲面辊压计算公式,分析了磨辊结构形式、物料最大粒度、料层厚度以及液压系统工作压力等设计参数对平均曲面辊压的影响,为辊式磨的设计参数选择以及结构强度计算提供了理论基础。

Average surface roller pressure calculation method of roller mill

Hydraulic system pressure, contact surface between grinding roller and materials and grinding roller force of roller mill are analyzed. A new roller pressure calculation method named average surface roller pressure calculation method is proposed,and the corresponding theoretical formula is derived from three different perspectives, including roller pressure numerical calculation, stress and strain of main components and mill power through the calculation of real samples. The average surface roller and traditional average material roller pressure are compared to verify the correctness and accuracy of the proposed method. Design parameters such as the grinding roller structure, material maximum size, layer height and working pressure of the hydraulic system on the influence of roller are analyzed according to the formula of roller pressure. The research results provide theoretical basis for the selection of design parameters and the design calculation of structural strength for roller mill.