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现代矿业 ›› 2025, Vol. 41 ›› Issue (10): 78-82.

• 矿物加工工程 • 上一篇    下一篇

纳米复合陶瓷球和钢球在球磨机中磨矿效果对比试验研究

李满年1 鞠浩然2 王 峰2   

  1. 1. 包钢集团矿山研究院(有限责任公司);2. 内蒙古包钢钢联股份有限公司巴润矿业分公司
  • 出版日期:2025-10-25 发布日期:2025-12-03

Comparative Study on the Grinding Performance of Nano-composite Ceramic Balls Versus Steel Balls in Ball Milling

  1. Aiming at the problems of serious overgrinding,high energy consumption and limited im⁃ provement of iron concentrate quality in the third stage ball milling system of a concentrator in Inner Mongo⁃ lia,the grinding experiment of nano-composite ceramic balls instead of steel forging was carried out. By sys⁃ tematically comparing the grinding technical efficiency and product particle size composition of ceramic balls and steel balls under different ball loading systems,filling rates,grinding concentrations,and time conditions,it was concluded that the qualified particle size(-0.075+0.018 mm) yields of steel balls and ce⁃ ramic balls were 62.74% and 63.02%,respectively. The grinding technical efficiencies of steel balls and ce⁃ ramic balls were 69.28% and 70.46%,respectively. The qualified particle size yield rate and grinding tech⁃ nical efficiency of ceramic balls were higher than those of steel balls. The comparison of magnetic separation effect of different media grinding products and ball consumption and energy consumption in grinding process shows that the iron grade of ceramic ball magnetic separation concentrate is slightly higher than that of steel ball grinding,and the content of harmful impurities in ceramic ball grinding magnetic separation concen⁃ trate is lower. Under the same conditions,ceramic ball grinding can obtain better quality iron concentrate. The energy consumption and power consumption of ceramic ball grinding are lower than those of steel ball grinding,and the effect of energy saving and consumption reduction is remarkable. Nano-composite ceram⁃ ic balls have good applicability in fine grinding of iron ore,which can provide technical reference for high￾efficiency and energy-saving grinding of similar ores.
  • Online:2025-10-25 Published:2025-12-03

摘要: 针对内蒙古某选矿厂三段球磨系统存在的过磨严重、能耗高、铁精矿品质提升有限等 问题,开展纳米复合陶瓷球替代钢锻的磨矿试验研究。通过系统对比陶瓷球与钢球在不同装球制 度、充填率、磨矿浓度和时间条件下的磨矿技术效率、产品粒度组成,得出钢球和陶瓷球磨矿合格粒 级-0.075+0.018 mm 产率分别为 62.74% 和 63.02%,钢球和陶瓷球磨矿技术效率分别为 69.28% 和 70.46%,陶瓷球合格粒级产率及磨矿技术效率均高于钢球。对不同介质磨矿产品磁选效果及磨矿过 程球耗与能耗对比表明,陶瓷球磁选精矿铁品位略高于钢球磨矿,陶瓷球磨矿磁选精矿有害杂质含 量更低,同等条件下陶瓷球磨矿能够获得质量更好的铁精矿。陶瓷球磨矿能耗和电耗均低于钢球磨 矿,节能降耗效果显著。纳米复合陶瓷球在铁矿细磨中具有较好的适用性,可为同类矿石的高效节 能磨矿提供技术参考。

关键词: 纳米陶瓷球, 球磨机, 能耗

Abstract: Aiming at the problems of serious overgrinding,high energy consumption and limited im⁃ provement of iron concentrate quality in the third stage ball milling system of a concentrator in Inner Mongo⁃ lia,the grinding experiment of nano-composite ceramic balls instead of steel forging was carried out. By sys⁃ tematically comparing the grinding technical efficiency and product particle size composition of ceramic balls and steel balls under different ball loading systems,filling rates,grinding concentrations,and time conditions,it was concluded that the qualified particle size(-0.075+0.018 mm) yields of steel balls and ce⁃ ramic balls were 62.74% and 63.02%,respectively. The grinding technical efficiencies of steel balls and ce⁃ ramic balls were 69.28% and 70.46%,respectively. The qualified particle size yield rate and grinding tech⁃ nical efficiency of ceramic balls were higher than those of steel balls. The comparison of magnetic separation effect of different media grinding products and ball consumption and energy consumption in grinding process shows that the iron grade of ceramic ball magnetic separation concentrate is slightly higher than that of steel ball grinding,and the content of harmful impurities in ceramic ball grinding magnetic separation concen⁃ trate is lower. Under the same conditions,ceramic ball grinding can obtain better quality iron concentrate. The energy consumption and power consumption of ceramic ball grinding are lower than those of steel ball grinding,and the effect of energy saving and consumption reduction is remarkable. Nano-composite ceram⁃ ic balls have good applicability in fine grinding of iron ore,which can provide technical reference for high�efficiency and energy-saving grinding of similar ores.