黄金科学技术 ›› 2023, Vol. 31 ›› Issue (1): 163-170.doi: 10.11872/j.issn.1005-2518.2023.01.112
• 采选技术与矿山管理 • 上一篇
杨应宝1(),伏彦雄1,裴英杰2,周强3(),肖庆飞3,4,5
Yingbao YANG1(),Yanxiong FU1,Yingjie PEI2,Qiang ZHOU3(),Qingfei XIAO3,4,5
摘要:
针对易门铜业Φ2.4×3.6 m球磨机装补球制度不合理、磨矿产品细度低、分级机效率偏低及循环负荷偏高等问题,基于矿石的力学性质及粒度组成分布情况,采用段氏球径半理论公式对推荐初装介质配比进行计算,最终确定初装球方案为Φ80 mm∶Φ60 mm∶Φ50 mm∶Φ40 mm=30%∶25%∶25%∶20%。将推荐钢球配比方案与现场方案进行实验室磨矿对比试验,结果表明:与现场方案相比,推荐方案的过粗级别+0.150 mm产率降低了2.38个百分点,磨矿细度(-0.074 mm占比)提高了5.14个百分点,中间级别-0.150+0.010 mm产率提高了1.08个百分点,磨矿技术效率增长了3.39个百分点。由此可见,采用推荐初装钢球配比作为易门铜业Φ2.4×3.6 m球磨机磨矿介质,其优化效果明显。
中图分类号:
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