攀西某钒钛磁铁矿废石抛尾实验

    Test on Discarding Tailings of Waste Rocks of a Vanadium-titanium Magnetite in Panxi Area

    • 摘要: 针对攀西某钒钛磁铁矿废石,采用“干式+湿式”组合抛尾。结果表明:废石破碎至-40 mm后,采用干式抛尾,可抛出流程产率23.73%、TFe品位9.96%、TiO2品位3.92%的尾矿;干抛精矿细碎至-5 mm后,采用湿式重磁拉抛尾,可抛出流程产率27.36%、TFe品位7.86%、TiO2品位2.81%的尾矿;“干式+湿式”组合抛尾,最终抛尾率可达51.09%,精矿TFe品位提升5.56个百分点,TiO2品位提升2.75个百分点,可大幅降低后续磨矿量,提高后续入选品位,降低此类资源的选矿成本。

       

      Abstract: The combined methods of dry-discarding and wet-discarding were used to separate the vanadium-titanium-magnetite waste rock in Panxi. The results indicated that the grades of TFe and TiO2 which existed in the tailings reached 9.96% and 3.92%, respectively, and the recovery reached 23.73% using the dry-discarding method after the waste rocks were crushed to -40 mm. In addition, after the concentrates of dry-discarding were crushed to -5 mm, using the wet-discarding method, the grades of TFe and TiO2 which existed in the tailings reached 7.86% and 2.81%, respectively, and the recovery reached 27.36%. Finally, the discarding rate reached 51.09% using the combination methods of dry-discarding and wet-discarding, and the TFe grade of concentrate increased 5.56 percentage, TiO2 grade increased 2.75 percentage. The method could greatly reduce the subsequent grinding amount, improve the initial grade, and reduce the mineral processing cost.

       

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