Home Journals Articles Updates About
CN
image
收藏切换
Experimental study on explosion intensity of dust cloud in lead and zinc concentrate powder
收藏切换
PDF
Zhenli DENG1, Guoju QIN1, Yunjian TANG**, 1, Xiaoquan LI2, 3, Ningying WEI2, 3
China Safety Science Journal | 2025, 35(12) : 64 - 69
Less
收藏切换
China Safety Science Journal | 2025, 35(12): 64-69
• Safety engineering technology •
Experimental study on explosion intensity of dust cloud in lead and zinc concentrate powder
Full
Zhenli DENG1, Guoju QIN1, Yunjian TANG**, 1, Xiaoquan LI2, 3, Ningying WEI2, 3
Affiliations
  • 1Guangxi Zhongjin Lingnan Mining Co., Ltd., Laibin Guangxi 545902, China
  • 2School of Resources, Environment and Materials Science, Guangxi University, Nanning Guangxi 530004, China
  • 3Guangxi Colleges and Universities Key Laboratory of Minerals Engineering, Guangxi University, Nanning Guangxi 530004, China
Published: 2025-12-28 doi: 10.16265/j.cnki.issn1003-3033.2025.12.1385
Outline
收藏切换

In order to prevent dust cloud combustion and explosion accidents in the high sulfur content concentrate warehouse after beneficiation, lead concentrate and zinc concentrate of Panlong Lead Zinc Mine were taken as examples. Tests on explosion intensity and the lower explosion limit at different mass concentrations were conducted using a 20 L balls. Main parameters, including the maximum explosion pressure, explosion lower limit, and explosion index of the lead zinc concentrate powder dust cloud, were obtained. The results show that maximum explosion pressures of lead concentrate and zinc concentrate dust clouds were 0.335 and 0.251 MPa, respectively, both occurring when the mass concentration of the dust cloud was 1 000 g/m3. The lower explosive limits of mass concentration are 160-170 and 210-220 g/m3, respectively, indicating low explosion risk. The explosion risk and hazard of dust clouds in lead concentrate are higher than those in zinc concentrate. The explosion mechanism of concentrate dust cloud particles being ignited, exploded, and subjected to a chain reaction is obtained. These findings provide an experimental and theoretical basis for preventing dust cloud explosion of concentrate in the concentrate warehouse.

lead concentrate  /  zinc concentrate  /  dust cloud  /  explosion intensity  /  lower explosive limit
Zhenli DENG, Guoju QIN, Yunjian TANG, Xiaoquan LI, Ningying WEI. Experimental study on explosion intensity of dust cloud in lead and zinc concentrate powder[J]. China Safety Science Journal, 2025 , 35 (12) : 64 -69 . DOI: 10.16265/j.cnki.issn1003-3033.2025.12.1385
Appendix
Less
Year 2025 volume 35 Issue 12
PDF
67
7
Cite this Article
BibTeX
Article Info
doi: 10.16265/j.cnki.issn1003-3033.2025.12.1385
  • Receive Date：2025-07-10
  • Online Date：2026-07-09
  • Published：2025-12-28
Article Data
Affiliations
History
  • Received：2025-07-10
  • Revised：2025-09-22
Funding
Affiliations
    1Guangxi Zhongjin Lingnan Mining Co., Ltd., Laibin Guangxi 545902, China
    2School of Resources, Environment and Materials Science, Guangxi University, Nanning Guangxi 530004, China
    3Guangxi Colleges and Universities Key Laboratory of Minerals Engineering, Guangxi University, Nanning Guangxi 530004, China
References
Share
https://castjournals.cast.org.cn/joweb/zgaqkxxb/EN/10.16265/j.cnki.issn1003-3033.2025.12.1385
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House