黄金科学技术 ›› 2020, Vol. 28 ›› Issue (4): 603-609.doi: 10.11872/j.issn.1005-2518.2020.03.185
李付博1(),肖庆飞2,3(
),黄胤淇2,3,张谦2,3,王旭东2,3
Fubo LI1(),Qingfei XIAO2,3(
),Yinqi HUANG2,3,Qian ZHANG2,3,Xudong WANG2,3
摘要:
针对江西某铜矿选厂大型球磨机磨矿产品质量差、处理量低、运转率低和能耗高等问题,在测定矿石力学性质的基础上,采用控制变量法,通过对比多组实验室试验方案的磨矿效果,最终确定球磨机的最佳介质制度为φ60∶φ50∶φ40∶φ30=30∶25∶30∶15。试验结果表明:推荐钢球方案较现场方案过粗粒级级别产率降低了1.21个百分点,中间易选粒级级别产率提高了2.53个百分点,过粉碎粒级级别产率减少了0.32个百分点;较钢段方案过粗粒级、磨矿细度-0.074 mm占比和中间易选级别产率分别提高了4.58个百分点、1.48个百分点和3.25个百分点,对比工业试验前后矿石月处理量提高了13 242 t,运转率提高了2.18个百分点,月功率降低了173 kW。研究表明:优化磨矿介质制度不仅可以提高磨矿产品质量,而且对节能降耗具有重要的促进意义,有助于提升公司核心技术水平,对同类型矿山具有借鉴意义。
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