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金属矿山 ›› 2009, Vol. 39 ›› Issue (02): 30-33+86.

• 采矿工程 • 上一篇    下一篇

固化添加剂对固化尾砂初始流动性和强度的影响

汪顺才1,张春雷1,朱伟1,王方汉2,曹维勤2,缪建成2   

  1. 1.河海大学;2.南京银茂铅锌矿业有限公司
  • 出版日期:2009-02-16 发布日期:2012-02-02

Influence of Solidifying Additive on the Initial Fluidity and Strength of Solidified Tailings

Wang Shuncai1,Zhang Chunlei1,Zhu Wei1,Wang Fanghan2,Cao Weiqin2,Miao Jiancheng2   

  1. 1.Hohai University;2.Nanjing Yinmao Lead-Zinc Mining Co.Ltd.
  • Online:2009-02-16 Published:2012-02-02

摘要: 为更好地利用尾砂充填井下采空区,降低尾砂充填成本,以南京银茂铅锌矿业有限公司的尾砂为对象,研究了固化添加剂对尾砂固化后初始流动性和强度的影响规律。结果表明:木钙可以增加固化尾砂的流动性,膨润土可以提高固化尾砂的强度;通过添加木钙或膨润土来满足现有充填工艺的前提下,最大程度地提高尾砂浓度可以有效减少水泥用量,降低尾砂充填成本。

关键词: 尾砂, 固化添加剂, 流动性, 强度

Abstract: To better utilize the tailings to fill underground mined-out areas at a decreased filling cost, the influence of solidifying additive on the initial fluidity and strength of solidified tailing was studied for the tailings from Nanjing Yinmao Lead-zinc Mining Co.Ltd.The results show that the calcium lignosulphonate can improve the initial fluidity of solidified tailing while the bentonite can increase its strength.Under the prerequisite of satisfying the present filling process, raising the tailing concentration as much as possible by adding calcium lignosulphonate or bentonite can effectively reduce the cement consumption so as to decrease the filling cost.

Key words: Tailing, Solidification additive, Fluidity, Strength