Behavior of diesel particulate matter transport from subsidiary transportation vehicle in mine

被引：0

作者：

Liu, Xiaofei ^{[1
,2
]}

Nie, Wen ^{[1
,2
]}

Hua, Yun ^{[1
,2
]}

Liu, Chengyi ^{[1
,2
]}

Guo, Lidian ^{[1
,2
]}

Ma, Weiwei ^{[1
,2
,3
]}

机构：

[1] College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao,Shandong Province,266590, China

[2] State Key Laboratory of Mining Disaster Prevention and Control Co-found By Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao,266590, China

[3] Huozhou Coal Electricity Group Co., LTD, Linfen,Shanxi Province,031400, China

来源：

Environmental Pollution | 2021年 / 270卷

基金：

中国国家自然科学基金;

关键词：

Numerical models - Velocity - Particles (particulate matter) - Air - Diesel engines - Ventilation - Air quality;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The aim of this study was to investigate thoroughly the diffusion and distribution of diesel particulate matter (DPM) discharged from a mine subsidiary transportation vehicle to improve the air quality in tunnels by reducing exhaust pollution and to propose targeted prevention measures. More specifically, the diffusion of DPM from a WC40Y shield carrier during its travel was examined in depth with numerical simulations. The results show that, under the current ventilation conditions, the airflow in the tunnel was insufficient for diluting the DPM discharged from the shield carrier during starting, accelerated traveling, and turning; this can be effectively addressed by increasing the ventilation rate to 1.8 m/s. However, during high-velocity travel, the carrier was affected by the piston wind could not be diluted effectively by increasing ventilation rate. The velocity limit can lower the DPM concentration in the tunnel and alleviate DPM pollution from the shield carrier. To reduce DPM emissions, the travel velocity should be limited to 30 km/h. Summary: Determine the optimal airflow velocity in the tunnel that ensures that the discharged DPM is effectively diluted during the travel of the shield carrier. © 2020 Elsevier Ltd

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