Citation

Sun C, Zhang Y, Pei B, Wang Y, Meng X, Ji W. China Saf. Sci. J. 2020; 30(10): 112-118.

Copyright

(Copyright © 2020, China Occupational Safety and Health Association, Publisher Gai Xue bao)

DOI

10.16265/j.cnki.issn1003-3033.2020.10.016

PMID

unavailable

Abstract

In order to develop new gas/ solid two-phase inhibitors, impacts of CO2 and N2 / red mud two-phase inhibitors on maximum explosion pressure and average flame propagation velocity of methane were tested via a gas explosion experimental platform. Then, difference of gas explosion suppression performance between two-phase inhibitors and single-phase inhibitors was compared. The results show that inert gas/ red mud two-phase inhibitor has dual explosion suppression effect which is better than that of single-phase inhibitors on methane explosion and increases with growth of inert gas's volume fraction and red mud's mass concentration. Meanwhile, there is a critical volume fraction for inert gas. If it is higher than this critical value, needed concentration of red mud to completely suppress the methane explosion is lower. However, in case of lower volume fraction, that of red mud will increase obviously. © 2020 China Safety Science Journal. All rights reserved.

Language: zh