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金属矿山 ›› 2019, Vol. 48 ›› Issue (02): 173-177.

• 碎磨工艺 • 上一篇    下一篇

搅拌磨机在弓长岭选厂再磨作业中的试验研究

王洋1,郭旺2,3,高鹏2,3,李艳军2,3   

  1. 1. 鞍钢集团弓长岭矿业公司选矿厂,辽宁 鞍山114001;2. 东北大学资源与土木工程学院,辽宁 沈阳110819;3. 难采选铁矿资源高效开发利用技术国家地方联合工程研究中心,辽宁 沈阳 110819
  • 出版日期:2019-02-25 发布日期:2019-04-08

Experimental Study on Stirred Mill in Regrinding Process in Gongchangling Plant

Wang Yang1, Guo Wang2,3, Gao Peng2,3, Li Yanjun2,3   

  1. 1. Gongchangling Mining Co.Ltd.of Ansteel Mining Group,Anshan 114001,China; 2. School of Resources and Civil Engineering,NortheasternUniversity,Shenyang 110819,China;3. National-Local Joint Engineering Research Center of Refractory Iron Ore Resources Efficient Utilization Technology,Shenyang 110819, China
  • Online:2019-02-25 Published:2019-04-08

摘要: 对弓长岭选矿厂的再磨给矿进行工艺矿物学分析,TFe品位为53.10%,主要以磁铁矿的形式存在,细粒级中铁矿物含量较高,说明该矿石需要充分细磨使含铁矿物单体解离,才能获得良好的分选指标。通过对搅拌磨适宜的磨矿工艺参数试验研究,得到适宜的磨矿工艺参数:充填率75%、料球比0.8、磨矿浓度70%、6 mm的陶瓷球。磨矿产品-0.038 mm含量在80%以上时,经过一段磁选,经济技术指标良好。

关键词: 搅拌磨, 陶瓷球, 比生产率, 磨矿效率

Abstract: The technological mineralogical analysis of regrinding feeding ore in Gongchangling Concentrator shows that the TFe grade is 53.10%, mainly in the form of magnetite, and the content of iron ore in fine grains is high, which indicates that the ore needs to be fully grinded to dissociate the monomer containing iron ore in order to obtain a good separation index. The suitable grinding parameters of stirred mill were studied. The results showed that the suitable grinding parameters were with 75% filling ratio, material to ball ratio is 0.8, grinding concentration is 70% and 6 mm ceramic balls. When the content of grinding product -0.038 mm is above 80%, good economic and technical indexes can be obtained after one stage magnetic separation.

Key words: Stirred mill, Ceramic ball, Specific production rate, Grinding efficiency