Tytuł artykułuRemote Pipeline Pumping Transportation of Cemented Tailings Backfill Slurry
Tytuł czasopismaArchives of Mining Sciences
Słowa kluczowestrong resistance ; pipe pumping ; pumping looping pipe experiment ; rheological characteristic ; CFD
Wydział PANNauki o Ziemi
Archives of Mining Sciences (AMS) publish research results of wide interest in all fields of mining sciences which include: rock mechanics, mining engineering, mineral processing, geotechnical engineering and tunnelling, mining and engineering geology, minig geodesy and geophysics, ventilation systems, environmental protection in mining and economical aspects in mining.
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For most precious metal mines, cemented tailings backfill slurry (CTBS) with different cement-sand
ratio and solid concentration are transported into the gobs to keep the stability of the stope and mitigate
environmental pollution by mine tailing. However, transporting several kinds of CTBS through the same
pipeline will increase the risk of pipe plugging. Therefore, the joint impacts of cement-sand ratio and
solid concentration on the rheological characteristics of CTBS need a more in-depth study. Based on the
experiments of physical and mechanical parameters of fresh slurry, the loss of pumping pressure while
transporting CTBS with different cement-sand ratio, flux and solid mass concentration were measured
using pumping looping pipe experiments to investigate the joint impacts of cement-sand ratio and solid
concentration on the rheological characteristics of CTBS. Meanwhile, the effect of different stopped pumping
time on blockage accident was revealed and discussed by the restarting pumping experiments. Furthermore,
Fluent software was applied to calculate the pressure loss and velocity distribution in the pipeline to further
analysis experimental results. The overall trends of the simulation results were good agreement with the
experiment results. Then, the numerical model of the pipeline in the Sanshandao gold mine was conducted
to simulate the characteristics of CTBS pipeline transportation. The results show that the pumping pressure
of the delivery pump can meet the transportation requirements when there is no blockage accident. This
can provide a theoretical method for the parameters optimizing in the pipeline transportation system.
WydawcaCommittee of Mining PAS
TypArtykuły / Articles