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金属矿山 ›› 2016, Vol. 45 ›› Issue (10): 35-39.

• 采矿工程 • 上一篇    下一篇

考虑温度影响的全尾砂料浆流变性能研究

薛振林1,张友志1,鲍亚豪1,刘志义1,李媛媛2   

  1. 1.华北理工大学矿业工程学院,河北 唐山 063000;2.华北理工大学公共卫生学院,河北 唐山 063000
  • 出版日期:2016-10-15 发布日期:2016-11-04
  • 基金资助:

    基金项目:河北省自然科学基金项目(编号:E2016209277)。

Study on Rheological Property of Unclassified-tailing Slurry Considering the Temperature Effect

Xue Zhenlin1,Zhang Youzhi1,Bao Yahao1,Liu Zhiyi1,Li Yuanyuan2   

  1. 1.College of Mining Engineering,North China University of Science and Technology,Tangshan 063009,China;2.School of Public Health,North China University of Science and Technology,Tangshan 063009,China.
  • Online:2016-10-15 Published:2016-11-04

摘要: 为了探究考虑温度变化下的全尾砂料浆流变性能,以某铁矿全尾砂料浆为试验对象,采用正交设计方法设计实验,利用控温浆式流变仪对料浆进行流变测试,分析了质量浓度、温度和灰砂比对流变参数的影响规律。结果表明:料浆屈服应力的影响权重为质量浓度>温度>灰砂比,质量浓度影响最为显著;各因素间均存在一定的交互作用,质量浓度高于79%后,温度和浓度交互作用明显,屈服应力急剧上升;充填过程中料浆浓度控制在78%以下能够满足流动性和浓度的要求,并降低温度和灰砂比的影响。

关键词: 流变性, 全尾砂, 温度, 充填, 料浆

Abstract: In order to explore the unclassified-tailing slurry rheological property under the influence of temperature,taking an iron ore unclassified-tailing as test object,the orthogonal design was adopted to design experiment,and temperature adjustable rheometer was used to test rheological parameters.Then the influence rule of mass concentration,temperature,and the cement-sand ratio on slurry rheological parameters were analyzed.The results show that the influence degree of factors on the yield stress is mass concentration>temperature>the cement-sand ratio;There are certain interactions among various factors,and the interaction between temperature and concentration is obvious,and the yield stress rise sharply while the mass concentration is higher than 79%;To meet the requirements of the liquidity and the concentration,and reduce the effects of temperature and cement-sand ratio,slurry concentration should be controlled below 78% in the process of the filling.

Key words: Rheological property, Unclassified-tailing, Temperature, Backfilling, Slurry