Experimental study on forced ventilation and dust -control in a heading face based on response surface method

Zheng, Haotian; Jiang, Bingyou; Zheng, Yuannan; Zhao, Yang; Wang, Haoyu

doi:10.1016/j.psep.2023.05.098

Cited by 25 publications

(4 citation statements)

References 53 publications

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“…Regarding underground dust prevention technology in coal mines, ventilation can provide fresh air and remove dust from the mining environment [14], a fundamental method for controlling dust [15]. Its effectiveness is unstable, depending on various factors, such as the location and intensity of dust sources, tunnel structures, dust properties, and environmental conditions [16].…”

Section: Introductionmentioning

confidence: 99%

Review on Dust Control Technologies in Coal Mines of China

Huang,

Tao,

Chen

et al. 2024

Sustainability

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China faces a challenge in the sustainable development of the coal industry due to pneumoconiosis problems. Dust control technologies are crucial for safe production and miners’ health, ensuring the industry’s longevity. This article reviews the development process of dust prevention and control in underground coal mines in China, summarizes various technologies, and divides them into dust suppression, open-space dust reduction, and mine dust collectors according to different stages and environments of use. In dust suppression technologies, coal-seam water injection can reduce total dust generation by 60%, wet rock drilling can reduce drilling dust in the presence of stable water sources and high-pressure bearing equipment, and water-seal blasting can reduce blasting dust by 50–70%. In open-space dust reduction technologies, spray dust suppression can remove total dust by 50–95% and the removal efficiencies of foam dedusting for total and respirable dust are reported to reach 95% and 85% under the right conditions, respectively. In dust collector technologies, dry collectors can remove 80–95% of total dust. Wet collectors achieve up to 90% efficiency, dependent on water supply and waste processing. This article also discusses vapor heterogeneous condensation technology as a promising method for improving respirable dust removal in humid mine environments.

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Section: Introductionmentioning

confidence: 99%

Review on Dust Control Technologies in Coal Mines of China

Huang,

Tao,

Chen

et al. 2024

Sustainability

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“…are already common in the field of civil engineering. These techniques and several other algorithms are frequently being utilized to estimate different properties of concrete composites, soil compaction parameters, slope failure susceptibility etc [ [28] , [29] , [30] , [31] , [32] , [33] , [34] , [35] , [36] , [37] , [38] , [39] , [40] ]. This research is attributed to utilization of a special ML algorithm called GEP to predict residual cs and fs of SCC containing a mix of steel, polypropylene and PVA fibres.…”

Section: Introductionmentioning

confidence: 99%

Forecasting residual mechanical properties of hybrid fibre-reinforced self-compacting concrete (HFR-SCC) exposed to elevated temperatures

Bin Inqiad,

Dumitrascu,

Dobre

2024

Heliyon

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“…Wang measured the dust in the laboratory and obtained the dust concentration, mixed dust quality, and particle size distribution of different particles of dust at different heights along the roadway under different wind speeds. The results showed that on the same section, the dust concentration is directly proportional to the distance from the roof . Zhou et al combined on-site application with numerical simulation, and the results showed that the ventilation air flow gradually stabilizes, large particle size dust particles continue to settle, and most of the suspended dust particles in the air flow have particle sizes less than 40 μm .…”

Section: Introductionmentioning

confidence: 99%

“…The results showed that on the same section, the dust concentration is directly proportional to the distance from the roof. 10 Zhou et al combined on-site application with numerical simulation, and the results showed that the ventilation air flow gradually stabilizes, large particle size dust particles continue to settle, and most of the suspended dust particles in the air flow have particle sizes less than 40 μm. 11 Jiang et al established a mathematical model for the distribution of mobile dust diffusion.…”

Section: Introductionmentioning

confidence: 99%

Influence of Air Volume and Temperature in the Air Inlet Tunnel on the Characteristics of Dust Movement

Zhu,

Chen,

Sun

et al. 2023

ACS Omega

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In order to clarify the movement characteristics of dust particles in the intake tunnel and improve the underground intake tunnel environment, the main intake tunnel of Wulihou Coal Mine was taken as the engineering background, the COMSOL simulation software was adopted to establish a model, the influence of air volume and temperature on dust movement characteristics was studied, and the critical air volume and particle size of dust at room temperature were determined. The results show that with the ventilation air volume being the same, when the dust reaches the exit of the tunnel, its falling height is positively correlated with the particle size. When the dust particle size is the same, the height of the dust falling is negatively correlated with the ventilation air volume. As the particle size of dust increases, the impact of changes in air volume on its movement decreases and the trajectory of dust movement gradually becomes consistent. The height of dust falling is negatively correlated with the air flow temperature. Therefore, when other factors remain unchanged, dust pollution in the tunnel is relatively severe during the day and the dust concentration in the tunnel is higher in summer. The critical air volume for dust emission in the intake tunnel of Wulihou Coal Mine is 75.84 m 3 /s, corresponding to a central wind speed of 5.29 m/s in the tunnel. The critical particle size for dust emission is 1.4 μm.

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Experimental study on forced ventilation and dust -control in a heading face based on response surface method

Cited by 25 publications

References 53 publications

Review on Dust Control Technologies in Coal Mines of China

Review on Dust Control Technologies in Coal Mines of China

Forecasting residual mechanical properties of hybrid fibre-reinforced self-compacting concrete (HFR-SCC) exposed to elevated temperatures

Influence of Air Volume and Temperature in the Air Inlet Tunnel on the Characteristics of Dust Movement

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