黄金科学技术 ›› 2020, Vol. 28 ›› Issue (5): 771-777.doi: 10.11872/j.issn.1005-2518.2020.05.158
Xudong WANG1(),Qingfei XIAO1,2(
),Qian ZHANG1,Sen YANG1,Shuai MA1
摘要:
针对大坪选厂细磨工段磨矿产品粒度均匀性差,磨矿细度-0.074 mm含量不达标,过粉碎含量偏高等问题,制定了磨矿介质制度优化方案,通过实验室磨矿试验得出细磨工段磨矿介质采用钢段效果更佳,其磨矿介质制度:Φ45×50∶Φ35×40∶Φ30×35∶Φ25×30=30∶20∶20∶30。试验结果表明:全面钢段方案与钢球方案及现厂方案相比,各项指标均得到一定的提高,过粗级别+0.10 mm产率分别减少了0.73个百分点和5.42个百分点,过粉碎级别-0.010 mm产率分别减少了2.51个百分点和0.77个百分点,磨矿细度-0.074 mm含量分别提高了1.75个百分点和5.33个百分点,中间易选级别0.100~0.038 mm产率分别提高了1.96个百分点和5.57个百分点,磨矿技术效率分别提高了3.54个百分点和8.14个百分点,磨机-0.074 mm利用系数分别提高了3.15%和10.24%。因此,根据试验前后各项指标对比,全面钢段更加适用于细磨工艺,能够有效改善“两端多、中间少”的现象,提高磨矿效率和合格产品质量占比。
中图分类号:
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