<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Ionic rare earth (RE) mines use the <italic>in situ</italic> leaching (ISL) method to operate, but after investigation, it is found that the geological damage caused by RE mines is still serious in recent years. The structure is damaged, which affects the stability of the mine slope and even causes geological disasters such as landslides and collapses to a certain extent, which has a huge impact on the lives of local people. Therefore, it is very important to analyze the slope stability of RE mines. In this study, indoor similarity simulation experiments were conducted using the sensor network (SN) of non-linear data analysis, and its stability of the ISL of ionic RE ore bodies was studied. In addition, an indoor column leaching simulation experiment was carried out to observe the internal fine and microstructure of the ore sample during the whole leaching process using nuclear magnetic resonance (NMR) under the conditions of magnesium sulfate solution and water leaching, respectively. The evolution mechanism of the pore structure was analyzed during the leaching process. The experiments showed that during the whole leaching process, the ore body reaches saturation in the early stages, resulting in a sharp increase in the porosity of the ore sample within the first 1 h due to seepage. Subsequently, the porosity of each sample increases, indicating that the seepage of the leaching solution inside the sample has reached a relatively stable state.</p>
</abstract>

Ionic rare earth (RE) mines use the in situ leaching (ISL) method to operate, but after investigation, it is found that the geological damage caused by RE mines is still serious in recent years. The structure is damaged, which affects the stability of the mine slope and even causes geological disasters such as landslides and collapses to a certain extent, which has a huge impact on the lives of local people. Therefore, it is very important to analyze the slope stability of RE mines. In this study, indoor similarity simulation experiments were conducted using the sensor network (SN) of non-linear data analysis, and its stability of the ISL of ionic RE ore bodies was studied. In addition, an indoor column leaching simulation experiment was carried out to observe the internal fine and microstructure of the ore sample during the whole leaching process using nuclear magnetic resonance (NMR) under the conditions of magnesium sulfate solution and water leaching, respectively. The evolution mechanism of the pore structure was analyzed during the leaching process. The experiments showed that during the whole leaching process, the ore body reaches saturation in the early stages, resulting in a sharp increase in the porosity of the ore sample within the first 1 h due to seepage. Subsequently, the porosity of each sample increases, indicating that the seepage of the leaching solution inside the sample has reached a relatively stable state.

Stability of Sensor Network based on Non-linear Data Analysis for <italic>in situ</italic> Leaching of Ionic Rare Earth Ore Bodies under Similar Simulation Experiments

Faculty of Materials Metallurgy and Chemistry

Jiangxi University of Science and Technology

Ganjiang Innovation Academy, Chinese Academy of Sciences

Jiangxi Province Key Laboratory of Cleaner Production of Rare Earths

International Journal on Smart Sensing and Intelligent Systems

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Stability of Sensor Network based on Non-linear Data Analysis for  Leaching of Ionic Rare Earth Ore Bodies under Similar Simulation Experiments

Ionic rare earth (RE) mines use the in situ leaching (ISL) method to operate, but after investigation, it is found that the geological damage caused by RE...

Stability of Sensor Network based on Non-linear Data Analysis for in situ Leaching of Ionic Rare Earth Ore Bodies under Similar Simulation Experiments

Article Category: Article

Published Online: Nov 20, 2023

Page range: -

Received: Jun 17, 2023

DOI: https://doi.org/10.2478/ijssis-2023-0014

Keywords
Sensor Network, Ionic Rare Earth Ore Body, Leaching, Indoor Simulation Experiment, Stability Analysis

© 2023 Yun Chuan Deng et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Stability of Sensor Network based on Non-linear Data Analysis for in situ Leaching of Ionic Rare Earth Ore Bodies under Similar Simulation Experiments

Article Category: Article

Published Online: Nov 20, 2023

Page range: -

Received: Jun 17, 2023

DOI: https://doi.org/10.2478/ijssis-2023-0014

KeywordsSensor Network, Ionic Rare Earth Ore Body, Leaching, Indoor Simulation Experiment, Stability Analysis

© 2023 Yun Chuan Deng et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
Sensor Network, Ionic Rare Earth Ore Body, Leaching, Indoor Simulation Experiment, Stability Analysis