Study on Distribution of Gas Concentration on the Upper Corner by Thermal Imaging Equipment and Swirling Jet

Abstract:

The gas accumulation is often mine hidden danger and has become a hotspot recently. in order to analysis the coal gas distribution law, the paper determines the heat transfer and temperature distribution using infrared thermograph and swirling jet device. Based on similarity theory, it can simulate the gas concentration distribution and gas migration. Based on an experiment result, the gas accumulation can be dissipated effectively and the distribution of gas concentration becomes uniform as the time, it can be provided as a reference of rotation fan design.

• Periodical: Applied Mechanics and Materials (Volumes 608-609)
• Pages: 811-815
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.608-609.811
• Online since: October 2014
• Authors: Xiu Feng Zhang*, Sheng Qiang Yang
• Keywords: Gas Concentration, Swirling Jet, Thermal Imaging Equipment, Upper Corner

References

[1] Shengqiang, Qixiang Yu, Kai Wang, et all. Application of the mine safety based on the theory of stope pulsating ventilation . Xuzhou: China University of Mining Press (In Chinese).

[2] Shengqiang Yang. Pulse ventilation management working surface coal mining corner of local accumulation of theoretical and Experimental Study of gas . Xuzhou: School of Energy and Safety Engineering, China University of Mining and Technology, (2000).

[3] Shengqiang, Qixiang Yu, Kai Wang, et all. Numerical simulation and experimental study of gas transport in the upper corner of mining face under pulsed ventilation. Journal of China University of Mining and Technology, Vol31, PP 44-48, January 2002 (In Chinese).

[4] Yingmin Wang . The mine aerodynamics and Mine ventilation system , Beijing, Metallurgical Industry Press, (1994).

[5] Shengqiang, Qixiang Yu, Kai Wang , et all. Action mechanism of rotary-jet pulse ventilation in the upper-corner gas accumulation in U-shaped working face. Journal of Coal Science & Engineering, Vol4 26, pp.384-388, august 2001(In Chinese).

[6] Shengqiang, Qixiang Yu, Qinfang Wang, Xiufeng Zhang et all. Theory Analysis of Rotary Radial Jet Eliminating Local Gas Accumulation. Vol33, May 2004(In Chinese).