LIU Xiao-hui, WU Ai-xiang, WANG Hong-jiang, JIAO Hua-zhe, LI Hui, YAN Qing-wen. Full-flow transport theory and its application in deep mine backfilling[J]. Chinese Journal of Engineering, 2013, 35(9): 1113-1118. DOI: 10.13374/j.issn1001-053x.2013.09.021
Citation: LIU Xiao-hui, WU Ai-xiang, WANG Hong-jiang, JIAO Hua-zhe, LI Hui, YAN Qing-wen. Full-flow transport theory and its application in deep mine backfilling[J]. Chinese Journal of Engineering, 2013, 35(9): 1113-1118. DOI: 10.13374/j.issn1001-053x.2013.09.021

Full-flow transport theory and its application in deep mine backfilling

More Information
  • Received Date: June 30, 2012
  • Available Online: July 20, 2021
  • In order to improve the full-flow state of backfilling pipelines in deep mines, full-flow ratio was put forward to regard as a quantitative index to describe the full-flow state of the filling system. At the same time a mathematical model of full-flow ratio was deduced based on the hydraulic transmission theory and its influence factors were also analysed in theory by using the mathematical model. It is found that reducing the pipe diameter or increasing the slurry flow velocity is the best way to increase the full-flow ratio. On the basis of the pipe two-phase flow theory, a mathematical expression about the relationship of the pipe diameter, velocity, and full-flow ratio was also established, which provides a theoretical basis of selecting the best conveying parameters for the filling system. A local reform, replacing Ф150 mm pipes with Ф85 mm pipes and increasing the flux to 80 m3·h-1 simultaneously, was carried out in a deep mine filling system. The results show that the full-flow ratio of such system is able to be improved by 6 times and the pipe wearing can be reduced effectively.
  • Related Articles

    [1]HUANG Xia-xu, SHEN Yan-hua, JIN Shun-yao, SHI Bo-qiang. High-temperature wear performance and mechanism of NM400/NM500 mining machinery steels[J]. Chinese Journal of Engineering, 2019, 41(6): 797-808. DOI: 10.13374/j.issn2095-9389.2019.06.012
    [2]ZHAO Fu, CHEN Hua-hui, REN Jie, WANG Chun-yang, MA Biao. Erosive wear of in-situ transformed carbon fiber toughened alumina ceramic composites[J]. Chinese Journal of Engineering, 2016, 38(11): 1596-1602. DOI: 10.13374/j.issn2095-9389.2016.11.013
    [3]LIU Jian-jin, CUI Zhao-wen, JIA Cheng-chang, LI Bin, WANG Da-feng, LIANG Dong. Sliding-wear characteristics of WC-12Co HVOF thermal spraying coatings[J]. Chinese Journal of Engineering, 2015, 37(12): 1617-1623. DOI: 10.13374/j.issn2095-9389.2015.12.013
    [4]XIN Long, MA Miao, LU Yong-hao. Fretting wear properties of Inconel600 alloy at high temperature[J]. Chinese Journal of Engineering, 2015, 37(7): 928-935. DOI: 10.13374/j.issn2095-9389.2015.07.015
    [5]JU Biao, WU Hui-bin, PAN Xue-fu, TANG Di. Effects of microstructures on the slurry wear properties of X70 pipeline steels[J]. Chinese Journal of Engineering, 2015, 37(3): 324-328. DOI: 10.13374/j.issn2095-9389.2015.03.010
    [6]WANG Shao-yong, WU Ai-xiang, YIN Sheng-hua, HAN Bin, WANG Hong-jiang. Influence factors of pressure loss in pipeline transportation of paste slurry[J]. Chinese Journal of Engineering, 2015, 37(1): 7-12. DOI: 10.13374/j.issn2095-9389.2015.01.002
    [7]LI Xiaoyan, ZHANG Jie, CHEN Xianlin, ZHAO Xinming, JIA Shenghui, HUANG Tao. Wear of Rolls in Single-Stand Temper Mill and Its Effect on the Strip Shape[J]. Chinese Journal of Engineering, 2002, 24(3): 326-328. DOI: 10.13374/j.issn1001-053x.2002.03.067
    [8]Li Huaiming, Yang Rang. A Testing Investigation of Wear Behaviour for a Rail Steel[J]. Chinese Journal of Engineering, 1993, 15(6): 561-566. DOI: 10.13374/j.issn1001-053x.1993.06.004
    [9]Xia Dehong, Xu Wenli, Wang Shijun. An Analytical Study on Pipe Wearing of CWS Transportation[J]. Chinese Journal of Engineering, 1992, 14(1): 83-89. DOI: 10.13374/j.issn1001-053x.1992.01.030
    [10]Zhang Zongxian. Some Characteristics and Law of Button Bit Wear[J]. Chinese Journal of Engineering, 1991, 13(5): 403-409. DOI: 10.13374/j.issn1001-053x.1991.05.001

Catalog

    Article Metrics

    Article views (371) PDF downloads (26) Cited by()
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return