Research on Flame Spread of Flying Small Coal Particles Explosion

Zhen Wei Duan; Xiao Yan Lv

doi:10.4028/www.scientific.net/AMR.550-553.511

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 550-553Research on Flame Spread of Flying Small Coal...

Research on Flame Spread of Flying Small Coal Particles Explosion

Abstract:

The explosion cavity, in which nine coal dust explosion tests are made, is made of circular pipe of 0.3m diameter and square pipes of 80mm section side. The analysis of test results shows the flame spread in coal Dust explosion is fast, big change and poor stability; Neither the maximum flame speed nor the spread distance keeps direct proportional to the amount of coal dust. However, there is the optimal coal dust consistency, with which the flame speed can reach its maximum. When the coal dust consistency is bigger than the optimal consistency, the flame speed curve will overall decline. Temporarily "hypoxia" is a very important factor that led to this situation.

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Periodical:

Advanced Materials Research (Volumes 550-553)

Pages:

511-515

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.550-553.511

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Online since:

July 2012

Authors:

Zhen Wei Duan*, Xiao Yan Lv

Keywords:

Coal Dust Explosion, Dust Consistency, Lame Spread Speed, Pipe

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* - Corresponding Author

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