Development of a Coal Dust Concentration Sensor Based on the Electrostatic Induction Method. [PDF]
ACS Omega, 2023 In order to solve the problems of easy blockage and difficult maintenance of the current coal dust concentration sensor, a coal dust concentration sensor based on the electrostatic induction method was designed. Based on the analysis of the principle of electrostatic induction dust concentration detection, an electrostatic induction dust concentration ...
Chen J +6 more
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Characterization of 10 nm – 10 μm coal dust particles generated by simulated different cutting and drilling parameters: mass concentration distribution, number concentration distribution, and fractal dimension [PDF]
International Journal of Coal Science & Technology, 2023 Nano-to-micron-sized coal dust can cause coal workers’ pneumoconiosis (CWP), and cutting and drilling are the main coal dust-generating processes. Based on a self-developed simulated coal cutting and drilling dust generation system, the effects of ...
Jintuo Zhu +6 more
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Study on the Explosion Mechanism of Low-Concentration Gas and Coal Dust [PDF]
FireIn coal mines, the mixture of coal dust and gas is more ignitable than gas alone, posing a high explosion risk to workers. Using the explosion tube, this study examines the explosion propagation characteristics and flame temperature of low-concentration ...
Li Liu +4 more
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Field Measurement of Dust Concentration on Open-pit Coal Mine Truck Transportation Roads and Numerical Simulation of Dust Patterns [PDF]
E3S Web of ConferencesDust generated by open-pit coal truck transportation is one of the main sources of pollution, adversely affecting road visibility and the surrounding air quality during transportation operations. To investigate the distribution patterns of transport dust
Liu Cheng, Zou Chenglong, Li Yihe
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Characterization and Concentration Prediction of Dust Pollution in Open-Pit Coal Mines [PDF]
AtmosphereDust pollution is a major problem formed caused by opencast coal mining, and its prevention is a key prerequisite for the realization of green and climate-friendly mining in open-pit coal mines.
Guilin Wang +4 more
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Numerical simulation study of the effect of coal dust on gas explosion overpressure [PDF]
Scientific ReportsA numerical simulation study was conducted using Ansys Fluent 2023 R1 simulation software to investigate the influence of coal dust on the overpressure of gas explosion. The results demonstrated that the reliability of the selected mathematical model was
Yingxiang Fang +3 more
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Assessment and Modelling of Dust Concentration in an Opencast Coal mine in India. [PDF]
Global NEST Journal, 2015 <div> <p>Dust pollution is a major problem in opencast mines. Many activities are associated with generation of dust that makes a cloud of pollutant at the work environment and the surrounding areas. Activities as drilling, blasting, transportation, surface miner etc. are the principle sources of generation of dust in mines.
F Dominici +30 more
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The Nature of the Variability of Dust Concentrations at the Coal Face [PDF]
Occupational and Environmental Medicine, 1953 It is well known that dust conditions in a coal mine vary from place to place and from time to time. Watson (1949) pointed out that even at one position on a long-wall face the concentration fluctuates wildly from minute to minute and varies even more from day to day, while the two halves of a double-unit face might differ considerably.
P. D. Oldham
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International Journal of Mining Science and Technology, 2021 High humidity and high dust concentration in deep coal mines may severely challenge the performance of respirators worn by coal miners. This paper aims at quantitatively evaluating the respirators used in deep coal mines and providing scientific guidance for the respiratory protection of miners.
Jintuo Zhu +5 more
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Nephelometry and turbidimetry to assess concentration and dispersion of coal dust in mines [PDF]
IOP Conference Series: Earth and Environmental Science, 2018 The article considers the model of the optical instrument to measure coal dust concentration in mines based on the turbidimetric and nephelometric methods. The calculated data on the intensity of transmitted and scattered waves depending on coal dust concentration and on the size of coal dust particles are presented.
VP Yushchenko, VN Legky, DE Demidov
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