Experimental Study on Cemented Tailings Backfill in a Copper Mine

DOI

10.2991/978-94-6463-312-2_18How to use a DOI?

Keywords

filling system; tailings sand; cement sand ratio; conveying capacity

Abstract

A certain copper mine has entered deep mining. In order to solve the numerous production technical problems faced by deep mining and the shortcomings of the original filling system in the mine, the filling system will be transformed and a high concentration tailings cemented filling system will be established. The filling system is designed using the underground mixing station self-flow filling process, advanced vertical sand bin fluidized slurry making device, and a mixing station is constructed underground, fully utilized the original filling facilities of the mine. In order to control the ground pressure during deep mining, provide high-quality filling materials, and ensure safe and efficient mining operations, on-site inspections were conducted on the existing filling equipment and pipeline system. A trial mining site filling tailings ratio test was designed, with a filling slurry concentration of 67% and ratios of 1:12, 1:8, and 1:6. It was concluded that the current system's expected sand release amounts of 120m³/h, 80m³/h, and 60m³/h are basically accurate, and the sand release concentration is controllable. The preparation system for cementitious filling water slurry has a normal preparation capacity of 12m³/h (concentration of 55–61%) is accurate, the control process is stable and easy to be controlled.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Xin Li
AU  - Lijie Guo
AU  - Wenyuan Xu
PY  - 2023
DA  - 2023/12/07
TI  - Experimental Study on Cemented Tailings Backfill in a Copper Mine
BT  - Proceedings of the 2023 5th International Conference on Structural Seismic and Civil Engineering Research (ICSSCER 2023)
PB  - Atlantis Press
SP  - 166
EP  - 172
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-312-2_18
DO  - 10.2991/978-94-6463-312-2_18
ID  - Li2023
ER  -