HPGR simulation from piston-die tests with an itabirite ore

Abstract The Minas Rio project, owned by Anglo American, has HPGRs in open circuit operated as a tertiary/quaternary crushing stage. Currently this type of equipment is designed from HPGR tests on laboratory scale and pilot scale tests. This paper presents a methodology for simulating HPGR from piston-die tests on laboratory scale and a mathematical model developed in Hacettepe University in Turkey. The parameters determined from the results of the piston-die tests were used to validate the HPGR testing on pilot scale. Finally, the model was used to predict the particle size distribution in the HPGR product on industrial scale.摘要 由英美资源集团（Anglo American）拥有的米纳斯里奥（Minas Rio）项目，其开路流程中的高压辊磨机（High Pressure Grinding Rolls，HPGR）被用作三段/四段破碎工段。当前此类设备的设计均依托实验室规模与中试规模下的高压辊磨机试验完成。本文提出了一种基于实验室规模活塞模试验模拟高压辊磨机的方法，以及一套由土耳其哈杰特佩大学（Hacettepe University）开发的数学模型。由活塞模试验结果确定的参数被用于验证中试规模的高压辊磨机试验。最终，该模型被用于预测工业规模高压辊磨机产品的粒度分布。