Journal
POWDER TECHNOLOGY
Volume 374, Issue -, Pages 507-521Publisher
ELSEVIER
DOI: 10.1016/j.powtec.2020.06.082
Keywords
Fully mechanized mining faces; Prevention and control of dust pollution; Air curtain dust control technology; Numerical simulation
Categories
Funding
- National Natural Science Foundation of China [51874191, 51404147]
- National Key R&D Program of China [2017YFC0805201]
- Qingchuang Science and Technology Project of Shandong Province University [2020KJD002]
- Taishan scholars project special funding [TS20190935]
Ask authors/readers for more resources
An air curtain dust control technology for a fully mechanized mining face was developed, using a method that combined numerical simulations with field measurements in this paper. The results show that a triangular air curtain was formed between the shearer and the footway by the high velocity airflow field generated at the outlets of two fans after the technology was applied, which can effectively prevent dust from entering the driver's working area. Before the dust control technology was applied, the dust concentration of the shearer driver's working area exceeded 2000 mg/m(3). However, after the dust control technology was applied, the dust concentration of the shearer driver's working area was reduced to 300 mg/m(3). After verification through field measurements, the dust control rate of each measuring point, apart from the advancing support, exceeded 40%, and that of the shearer driver's working area was over 90%. (C) 2020 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available