Proactive control model for safety prediction in tailing dam management: Applying graph depth learning optimization

Ruan, Shunling; Han, Simiao; Lu, Caiwu; Gu, Qing

doi:10.1016/j.psep.2023.02.019

Cited by 4 publications

(3 citation statements)

References 32 publications

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“…It can be found that the change in process parameters has little influence on mass loss rate and bulk density. Mass loss rate is mainly concentrated in the range of 9%~11%, and the bulk density is between 1.67 g/cm 3 and 1.81 g/cm 3 .…”

Section: Analysis Of Orthogonal Experimentsmentioning

confidence: 99%

“…With the increase in sintering temperature, the amount of liquid phase increases, which filles the pores in sintered bricks and results in the increase in bulk density. When the sintering temperature reaches 1040 • C, the bulk density of sintered brick reaches 1.75 g/cm 3 . Compared with lead-zinc tailings, clay contains a higher proportion of silicon oxides, which melt during the sintering process.…”

Section: Mean Value Analysismentioning

confidence: 99%

“…The annual production of tailings in China is about 1.5 billion tons, and there are more than 7000 tailings ponds in China. However, after being disturbed, tailings reservoirs may cause geological disasters such as debris flows, landslides, and ground collapse, resulting in heavy casualties and property losses [2,3]. Furthermore, long-term accumulation will lead to the leaching of harmful components containing heavy metal ions such as Pb 2+ , Zn 2+ , and Cd 2+ , threatening the environmental safety of water and soil near the mining area [4].…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of Lead–Zinc Tailings Sintered Brick and Its Effect Factors Based on an Orthogonal Experiment

Lin,

Li,

2024

Materials

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The existence of lead-zinc tailings threatens the social and ecological environment. The recycling of lead–zinc tailings is important for the all-round green transformation of economic society. In this study, the possibility of fabricating sintered ordinary bricks with lead–zinc tailings was studied based on orthogonal experimentation, and the phase composition and micromorphology of sintered products were analyzed by X-ray diffraction (XRD) and scanning electron microscope (SEM). With lead–zinc tailings as the main material, and clay and fly ash as additives, the effect of clay content, forming pressure, sintering temperature, and holding time on physical properties of sintered bricks was analyzed. The results show that clay content and sintering temperature have a major effect on compressive strength, while sintering temperature and holding time play an important role in water absorption. During sintering, mica, chlorite, and other components in lead–zinc tailings are decomposed to form albite, hematite, maghemite, and anhydrite, which play a role in the strength of bricks. The optimal process parameters were found to be a ratio of lead–zinc tailings:clay:fly ash = 6:3:1, forming pressure of 20 MPa, firing temperature of 1080 °C, and holding time of 60 min. The corresponding compressive strength and water absorption were 34.94 MPa and 16.02%, which meets the Chinese sintered ordinary bricks standard (GB/T 5101-2017).

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Section: Analysis Of Orthogonal Experimentsmentioning

confidence: 99%

Section: Mean Value Analysismentioning

confidence: 99%