Dynamic analysis of respirable dust concentration in the working environment of a large coal mine in 2013 - 2020
10.3969/j.issn.1006-2483.2022.06.006
- VernacularTitle:2013—2020年某大型煤矿企业作业环境中呼吸性粉尘浓度动态分析
- Author:
Hong ZHANG
1
;
Guo-wei LI
1
;
Min MU
2
;
Yong-fang ZHANG
3
;
Wei LI
1
;
Wen-yang WANG
2
;
Feng-lin ZHU
2
;
Wei HUANG
1
;
Jiang-jiang ZHANG
1
;
Dong-ming WANG
3
;
Wei-hong CHEN
3
;
Min ZHOU
3
Author Information
1. Shenmu Hongliulin Mining Co.,Ltd. of Shanmei Group, Yulin , Shanxi 719300 , China
2. Key Laboratory of Industrial Dust Control and Occupational Health, Ministry of Education, Anhui University of Science and Technology, Huainan Anhui 232001 , China
3. Department of Occupational and Environmental Health , School of Public Health, Tongji Medical College, Huazhong University of Science and Technology , Wuhan , Hubei 430030 , China
- Publication Type:Journal Article
- Keywords:
Coal mine;
Respirable dust;
Dust concentration
- From:
Journal of Public Health and Preventive Medicine
2022;33(6):24-27
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the characteristics and variation trend of respirable dust concentration in the working environment of a coal mine from 2013 to 2020. Methods A large coal mine in Shaanxi Province was selected as the research site. The inspection data regarding the respirable dust concentration across the years were collected. The characteristics and dynamic changes of respirable dust concentration were analyzed. Results The content of free silica in the main workplaces of the coal mine was less than 10% , and the dust was classified as the coal dust. The average annual concentrations of respirable dust varied in different workplaces, with the highest values in the fully mechanized winning and continuous mining face (0.32 mg/m3~18.68 mg/m3) and fully mechanized mining face (0.36 mg/m3~8.11 mg/m3). The average annual concentrations of respirable dust varied among different jobs, with the highest value among continuous miner drivers (1.30mg/m3~18.68 mg/m3), followed by shuttle truck drivers (0.32 mg/m3~14.77 mg/m3), crusher drivers (0.59 mg/m3~8.23 mg/m3), fully mechanized winning machine drivers (0.99 mg/m3~5.05 mg/m3), fully mechanized mining machine drivers (1.10 mg/m3~8.11 mg/m3), and timbermen (1.10mg/m3~6.09 mg/m3). The average concentration of respirable dust increased to the highest level during 2013-2014, then showed a downward trend during 2015-2018, and rebounded to a certain extent during2019-2020. Conclusion Respirable dust was widely distributed in the workplaces and across jobs. The concentrations of respirable dust were high, but the overall trend was downward.
