Parameter optimization of a passive dust removal system at the coal transfer point of a crushing station.
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| Title: | Parameter optimization of a passive dust removal system at the coal transfer point of a crushing station. |
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| Authors: | Zhang, Lizhong1 (AUTHOR), Yu, Long1 (AUTHOR), Han, Baohu2 (AUTHOR), Liu, Xiao1 (AUTHOR), Li, Jian3 (AUTHOR), Jiang, Xiaoliang3 (AUTHOR), Zhou, Qingyun3 (AUTHOR), Zhang, Jiangshi4 (AUTHOR) zhangjs@cumtb.edu.cn |
| Source: | Particulate Science & Technology. 2025, Vol. 43 Issue 6, p860-874. 15p. |
| Subjects: | Dust removal, Dust control, Coal transportation, Process optimization, Simulation methods & models, Dust removal equipment, Coal-fired power plants |
| Abstract: | The dust pollution is severe during the coal transfer process in the coal transfer system. To reduce dust generation, a simulation model was established based on the crushing station of the Heidaigou open-pit coal mine. The EDEM-Fluent coupling method was used to calculate the induced airflow generated by the coal flow, and a passive dust removal system, incorporating a return air duct, baffle plate, and dust barrier, was designed and optimized to balance the static pressure difference between the upper and lower parts of the system and suppress dust overflow. The study results indicate that the optimal dust suppression effects are achieved with a return air duct height (h) of 1.6 m, a distance (L1) of 2.0 m between the air inlet and the discharge pipe, a distance (L2) of 0.5 m between the baffle plate and the return air duct, a distance (L3) of 0 m between the dust barrier and the air inlet of the return air duct, and an angle (θ) of 20° toward the transfer chute. Based on these optimized parameters, the passive dust removal system was applied to the coal transfer system at the crushing station, resulting in an average dust concentration reduction of 71.76%. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | The dust pollution is severe during the coal transfer process in the coal transfer system. To reduce dust generation, a simulation model was established based on the crushing station of the Heidaigou open-pit coal mine. The EDEM-Fluent coupling method was used to calculate the induced airflow generated by the coal flow, and a passive dust removal system, incorporating a return air duct, baffle plate, and dust barrier, was designed and optimized to balance the static pressure difference between the upper and lower parts of the system and suppress dust overflow. The study results indicate that the optimal dust suppression effects are achieved with a return air duct height (h) of 1.6 m, a distance (L1) of 2.0 m between the air inlet and the discharge pipe, a distance (L2) of 0.5 m between the baffle plate and the return air duct, a distance (L3) of 0 m between the dust barrier and the air inlet of the return air duct, and an angle (θ) of 20° toward the transfer chute. Based on these optimized parameters, the passive dust removal system was applied to the coal transfer system at the crushing station, resulting in an average dust concentration reduction of 71.76%. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 02726351 |
| DOI: | 10.1080/02726351.2025.2495821 |
