Airborne dust generation and dispersion profiles due to loaded LPDT haulage in decline of a highly mechanized underground lead–zinc ore mine

Paluchamy, B.; Mishra, Devi Prasad

doi:10.1016/j.eti.2021.101908

Cited by 13 publications

(3 citation statements)

References 11 publications

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“…In this context, the significantly higher concentrations of PM 10 in comparison with PM 2.5 reveal that coarse particles are predominant in the study area. Although further conclusions about PM distribution cannot be obtained without the use of a cascade impactor, all these values are far from those that can be obtained by haulage in underground metallic mining, which can surpass 350 µgPM 10 /m 3 (Paluchamy and Mishra, 2021).…”

Section: Evaluation Of Mobile Lcs Monitoring In the Mining Environmentmentioning

confidence: 76%

A novel application of mobile low-cost sensors for atmospheric particulate matter monitoring in open-pit mines

Zafra-Pérez

Boente

Campa

et al. 2023

Environmental Technology & Innovation

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Section: Evaluation Of Mobile Lcs Monitoring In the Mining Environmentmentioning

confidence: 76%

A novel application of mobile low-cost sensors for atmospheric particulate matter monitoring in open-pit mines

Zafra-Pérez

Boente

Campa

et al. 2023

Environmental Technology & Innovation

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“…A past study conducted by the authors in the south decline of the same mine indicated 29% dust of ≤10 μm size in TAD at 50–100 m distance in downstream (Paluchamy and Mishra 2021). The greater proportion (64.0%) of the same dust size measured in this study is attributed due to slow buoyancy-driven airflow in the X-cut drive.…”

Section: Resultsmentioning

confidence: 92%

“…Limited studies have been conduced by researchers to understand the dust generation and dispersion characteristics in typical mining environment using sophisticated high-resolution aerosol spectrometers (Gautam et al 2016; Patra et al 2016). A recent study in a ramp of an underground metalliferous mine showed the changing proportion of various sizes of dust particles along the ramp due to the earlier settling of coarser particles in the mine airway (Paluchamy and Mishra 2021). A typical mine developmental cycle with mechanised scaling is shown in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

Airborne dust pollution due to mechanised scaling in underground metalliferous mine cross-cut drive under buoyancy-driven airflow

Paluchamy

Mishra

2022

Mining Technology

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Nowadays, mechanised scaling is extensively used in fully mechanised underground metalliferous mines (FMUMM) for removing potentially dangerous loose rocks from the mine roof and side walls. This study measures and analyses the generation and dispersion of airborne dust due to mechanised scaling operation by scaler in cross-cut (X-cut) drive of an underground mine using real-time aerosol spectrometers. The airborne dust is analysed in terms of the concentration of various size particles in total airborne dust (TAD). The analyses of different dust sizes, viz. ≤20 μm, ≤15 μm, ≤10 μm, ≤5 μm and ≤1 μm revealed that the per cent proportion of ≤1 μm and ≤10 μm varies from 2.6 to 22.4% and 60.5 to 88.3%, respectively, in the cross-cut. Moreover, the concentration proportions of alveolic and thoracic dusts in TAD during the 20-min retention time are assessed. This study can aid in developing safe re-entry periods and efficient dust control appliances.

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Dust pollution hazard and harmful airborne dust exposure assessment for remote LHD operator in underground lead–zinc ore mine open stope

Paluchamy

Mishra

2022

Environ Sci Pollut Res

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Underground mines have several occupational hazards, including airborne dust generated from various mining operations. Line-of-sight remote LHD mucking is adopted to draw the blasted muck from unsupported stopes in underground metalliferous mines. Investigation on particulate matter (PM) at remote operator location is crucial for assessing the operator exposure and devising appropriate dust control measures. This paper identi es the potential dust pollution hazard for remote LHD operator by simulating different mucking scenarios in open stope. PM generated due to mucking in a long-hole open stope by line-of-sight remote LHD during downcast air ow are measured using real-time aerosol spectrometers. The particulates concentration at upstream and downstream of dust source are analysed for various particle sizes including occupational dust types, such as alveolic and thoracic. The study revealed that the airborne dust concentrations of ≤10 μm, ≤5 μm, and ≤1 μm sizes in downstream, near the operator location, are measured 71.3%, 28.5%, and 3.0%, respectively. Moreover, the alveoli and thoracic dust fractions, respectively are determined 25.1% and 74.2%, in downstream and 48.9%, and 84.6%, in upstream total airborne dust concentration (311±246 μg/m3). The differential concentrations of 15.

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Airborne dust generation and dispersion profiles due to loaded LPDT haulage in decline of a highly mechanized underground lead–zinc ore mine

Cited by 13 publications

References 11 publications

A novel application of mobile low-cost sensors for atmospheric particulate matter monitoring in open-pit mines

A novel application of mobile low-cost sensors for atmospheric particulate matter monitoring in open-pit mines

Airborne dust pollution due to mechanised scaling in underground metalliferous mine cross-cut drive under buoyancy-driven airflow

Dust pollution hazard and harmful airborne dust exposure assessment for remote LHD operator in underground lead–zinc ore mine open stope

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