Akademik Veri Yönetim Sistemi
27th International Mining Congress and Exhibition of Turkey, IMCET 2022, Antalya, Türkiye, 22 - 25 Mart 2022, ss.324-334
© IMCET 2022. All rights reserved.This study aimed to reveal the opportunities of energy improvement in the copper ore grinding circuit by optimizing the operational conditions. The circuit comprised of a ball mill and hydrocyclone, which were closed circuited to provide the desired target size for the beneficiation. The time the study started the throughput of the grinding circuit was 240 tph. The initial optimization started at the control room where the cyclone pressure was changed from 60 kPa to 100-120 kPa range and mill discharge solid was changed from 68% to 80%. As a result of the adjustment the circuit responded positively and the feed rate was able to be increased to 278 tph with the same product fineness (p80 of 102 microns). In brief 15.8% increase in throughput was obtained. The sampling campaign was performed at that level to develop the model structures to be used in the simulation studies. Within the scope of the evaluations, 8 simulations were run to predict the operational range of the circuit, the throughputs at varied product fineness, and the lower/upper limits while considering the use of 70 mm grinding balls at 32% filling. The simulations showed that the throughput could be increased to 300-320 t/h in case the proper conditions were established.