Study on Dust Hazard Levels and Dust Suppression Technologies in Cabins of Typical Mining Equipment in Large Open-Pit Coal Mines in China
As the world’s largest open-pit coal producer, China faces severe dust pollution in mining operations. Cabins of mining equipment (electric shovels, haul trucks, drills) exhibit unique micro-environmental contamination due to dual-source pollution (external infiltration and internal secondary dust g...
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MDPI AG
2025-04-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/16/4/461 |
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| author | Xiaoliang Jiao Wei Zhou Junpeng Zhu Xinlu Zhao Junlong Yan Ruixin Wang Yaning Li Xiang Lu |
| author_facet | Xiaoliang Jiao Wei Zhou Junpeng Zhu Xinlu Zhao Junlong Yan Ruixin Wang Yaning Li Xiang Lu |
| author_sort | Xiaoliang Jiao |
| collection | DOAJ |
| description | As the world’s largest open-pit coal producer, China faces severe dust pollution in mining operations. Cabins of mining equipment (electric shovels, haul trucks, drills) exhibit unique micro-environmental contamination due to dual-source pollution (external infiltration and internal secondary dust generation), posing severe health risks to miners. This study focused on electric shovel cabins at the Heidaigou open-pit coal mine to address cabin dust pollution. Through analysis of dust physicochemical properties, a pollution characteristic database was established. Field measurements and statistical methods revealed temporal–spatial variation patterns of dust concentrations, quantifying occupational exposure risks and providing theoretical foundations for dust control. A novel gradient-pressurized air purification system was developed for harsh mining conditions. Key findings include the following. (1) Both coal-shovel and rock-shovel operators were exposed to Level I (mild hazard level), with rock-shovel operators approaching Level II (moderate hazard level). (2) The system reduced respirable dust concentrations from 0.313 mg/m<sup>3</sup> to 0.208 mg/m<sup>3</sup> (≥33.34% improvement) in coal-shovel cabins and from 0.625 mg/m<sup>3</sup> to 0.421 mg/m<sup>3</sup> (≥32.64% improvement) in rock-shovel cabins. These findings offer vital guidance for optimizing cabin design, improving dust control, and developing scientific management strategies, thereby effectively protecting miners’ health and ensuring operational safety. |
| format | Article |
| id | doaj-art-1ce0ed7affaa44f8a212c1669ba039ea |
| institution | OA Journals |
| issn | 2073-4433 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj-art-1ce0ed7affaa44f8a212c1669ba039ea2025-08-20T02:28:27ZengMDPI AGAtmosphere2073-44332025-04-0116446110.3390/atmos16040461Study on Dust Hazard Levels and Dust Suppression Technologies in Cabins of Typical Mining Equipment in Large Open-Pit Coal Mines in ChinaXiaoliang Jiao0Wei Zhou1Junpeng Zhu2Xinlu Zhao3Junlong Yan4Ruixin Wang5Yaning Li6Xiang Lu7CHN Energy Jungar Energy Group Co., Ltd., Ordos 010300, ChinaSchool of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaHeidaigou Open-Pit Coal Mine, CHN Energy Zhunneng Group Co., Ltd., Ordos 010300, ChinaHeidaigou Open-Pit Coal Mine, CHN Energy Zhunneng Group Co., Ltd., Ordos 010300, ChinaSchool of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaAs the world’s largest open-pit coal producer, China faces severe dust pollution in mining operations. Cabins of mining equipment (electric shovels, haul trucks, drills) exhibit unique micro-environmental contamination due to dual-source pollution (external infiltration and internal secondary dust generation), posing severe health risks to miners. This study focused on electric shovel cabins at the Heidaigou open-pit coal mine to address cabin dust pollution. Through analysis of dust physicochemical properties, a pollution characteristic database was established. Field measurements and statistical methods revealed temporal–spatial variation patterns of dust concentrations, quantifying occupational exposure risks and providing theoretical foundations for dust control. A novel gradient-pressurized air purification system was developed for harsh mining conditions. Key findings include the following. (1) Both coal-shovel and rock-shovel operators were exposed to Level I (mild hazard level), with rock-shovel operators approaching Level II (moderate hazard level). (2) The system reduced respirable dust concentrations from 0.313 mg/m<sup>3</sup> to 0.208 mg/m<sup>3</sup> (≥33.34% improvement) in coal-shovel cabins and from 0.625 mg/m<sup>3</sup> to 0.421 mg/m<sup>3</sup> (≥32.64% improvement) in rock-shovel cabins. These findings offer vital guidance for optimizing cabin design, improving dust control, and developing scientific management strategies, thereby effectively protecting miners’ health and ensuring operational safety.https://www.mdpi.com/2073-4433/16/4/461open-pit coal minedust controlelectric shovel cabinsair purification systemminers’ health and operational safety |
| spellingShingle | Xiaoliang Jiao Wei Zhou Junpeng Zhu Xinlu Zhao Junlong Yan Ruixin Wang Yaning Li Xiang Lu Study on Dust Hazard Levels and Dust Suppression Technologies in Cabins of Typical Mining Equipment in Large Open-Pit Coal Mines in China Atmosphere open-pit coal mine dust control electric shovel cabins air purification system miners’ health and operational safety |
| title | Study on Dust Hazard Levels and Dust Suppression Technologies in Cabins of Typical Mining Equipment in Large Open-Pit Coal Mines in China |
| title_full | Study on Dust Hazard Levels and Dust Suppression Technologies in Cabins of Typical Mining Equipment in Large Open-Pit Coal Mines in China |
| title_fullStr | Study on Dust Hazard Levels and Dust Suppression Technologies in Cabins of Typical Mining Equipment in Large Open-Pit Coal Mines in China |
| title_full_unstemmed | Study on Dust Hazard Levels and Dust Suppression Technologies in Cabins of Typical Mining Equipment in Large Open-Pit Coal Mines in China |
| title_short | Study on Dust Hazard Levels and Dust Suppression Technologies in Cabins of Typical Mining Equipment in Large Open-Pit Coal Mines in China |
| title_sort | study on dust hazard levels and dust suppression technologies in cabins of typical mining equipment in large open pit coal mines in china |
| topic | open-pit coal mine dust control electric shovel cabins air purification system miners’ health and operational safety |
| url | https://www.mdpi.com/2073-4433/16/4/461 |
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