Experiment Study on Pumpability of Full Tailings Consolidation and Discharging Slurry of An Iron Mine

2018 1st International Conference on Environment Prevention and Pollution Control Technology

生态环境科学

Li, Peng^1,2,3 ; Qian, Jin^4

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

100083, China^1

Key Laboratory of High-Efficient Mining and Safety of Metal Mines, Ministry of Education of China, University of Science and Technology Beijing, Beijing

100083, China^2

Beijing Key Laboratory of Urban Underground Space Engineering, University of Science and Technology Beijing, Beijing

100083, China^3

Key Laboratory of Computational Geodynamics, College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing

100049, China^4

关键词: Bleeding rate;    Cementing material;    Evaluation indicators;    Experiment study;    Pumping efficiency;    Research results;    Slump flow;    Slurry concentration;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/199/5/052036/pdf
DOI  :  10.1088/1755-1315/199/5/052036

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In order to treat tailings more economically and effectively and improve the pumping efficiency of the slurry, the pumpability of full tailings consolidation and discharging slurry (FTCDS) was tested. The three evaluation indicators, i.e., slump, slump flow, and bleeding rate, were measured under the conditions of HA-7 and PO42.5 as the cementing material, with the slurry concentration of 75% to 80% and the cementing material dosage of 2% and 3%. Based on these three evaluation indicators, the pumpability of the FTCDS was analyzed and evaluated, and the slurry ratio suitable for pumping was obtained. The results show that the slurry can be pumped well when HA-7 selected as the new cementing material, the concentration is 75% to 79%, and the amount of cementing material is 2%. The research results have implications for similar processes.