A method of modeling and control of recycled material to HPGR device in plant scale

摘要

The aim of the paper is an analysis and assessment of HPGR device effectiveness performance in relationship to the volume of recycled material into press.Analysis was carried out in industrial conditions for HPGR device operating in technological circuit of hard ore processing.Data was collected during six months of HPGR operation.There were determined base characteristics of HPGR crushing operations,as well as relationships between operational parameters of the press and feed properties.It was also determined a model that can be helpful in more effective control of HPGR press.Results of investigation show that too low and too extensive pressure volume results in higher mass of the oversize screening product of HPGR recycled to the press.In order to maintain volume of recycled material according to the plant design the operational pressure of the press should be kept within the range that can be calculated from the proposed model.