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Supervisor：Jiangxi University Of Science And Technology
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Jiangxi Nonferrous Metals Society
ISSN：1674-9669
CN：36-1311/TF
CODEN YJKYA9
Volume 14 Issue 2
Apr.  2023
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YANG Jiguang, WANG Yihai, WU Zaihai, TONG Chuan, LI Guangbo, SONG Zepu, JING Xiaodong, GUO Jiaren, WANG Yuliang. Analysis on rheological characteristics and microstructure of high concentration filling the tailings from a gold mine[J]. Nonferrous Metals Science and Engineering, 2023, 14(2): 249-256. DOI: 10.13264/j.cnki.ysjskx.2023.02.012
Citation: YANG Jiguang, WANG Yihai, WU Zaihai, TONG Chuan, LI Guangbo, SONG Zepu, JING Xiaodong, GUO Jiaren, WANG Yuliang. Analysis on rheological characteristics and microstructure of high concentration filling the tailings from a gold mine[J]. Nonferrous Metals Science and Engineering, 2023, 14(2): 249-256. DOI: 10.13264/j.cnki.ysjskx.2023.02.012
shu

Analysis on rheological characteristics and microstructure of high concentration filling the tailings from a gold mine

  • 1.

    Shandong Gold Mining Co., Ltd., Laizhou 261441, Shandong, China

  • 2.

    School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China

  • 3.

    Shandong Key Laboratory of Deep-Sea and Deep-Earth Metallic Mineral Intelligent Mining, Jinan 250101, China

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  • Received Date: May 09, 2022
  • Revised Date: May 25, 2022
  • Available Online: May 05, 2023
    Graphical Abstract
    • Abstract
  • In this paper, the whole-tailings from Xiaodonggou Gold Mine as filling slurry were studied by measuring its rheological parameters using a Brookfield RSR-SST rheometer. The experimental results showed that the rheological curve of whole-tailings filling slurry in the mine fitted to H-B rheological model. With the increase of concentration, the yield stress showed a typical exponential function relationship. When the concentration exceeded 72%, the yield stress and plastic viscosity increased significantly. Through the uniaxial compressive strength test of whole-tailings under different concentrations and ash sand ratios of 3, 7, 14 d, the relationship between the strength of filling body and the ratio parameters of filling materials was obtained. The microstructure of hydration products in the filling body was analyzed by SEM, and the evolution law of hydration products in the filling body with the increase of ash sand ratio was obtained, providing a theoretical basis for realizing high concentration filling of whole-tailings in Xiaodonggou Gold Mine.
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    • References (26)
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