니켈 산화광 분쇄 에너지 평가: 목표 입도별 분쇄-제련 효율의 상관관계 = Grinding Energy Assessment of Nickel Oxide Ore: Correlation of Grinding-Metallurgy Efficiency for Target Particle Size

다국어 초록 (Multilingual Abstract)

Although grinding is essential in the treatment of nickel oxide ore, relatively few studies have quantitatively evaluated the energy applied in the process. In this study, we evaluated the work index and grinding energy for target particle sizes of 45, 75, 106, and 150 µm using a process simulation. The work index increased rapidly with decreasing particle size and was recorded as 6.35 kWh/t at 150 µm and 11.59 kWh/t at 45 µm. The simulation of the grinding process also revealed that the grinding energy for the 45 µm target particle size was greater than that for particles with a diameter of 150 µm by a factor of approximately 4.2, and energy consumption increased sharply below 106 µm. The optimal size of the grinding particles was determined to be 106 µm by considering the grinding energy as well as the efficiency of subsequent metallurgical processes. These results can be utilized as a fundamental guideline to establish optimal grinding conditions in the design of a nickel oxide ore processing plant.