Abstract
The densities of airflow will be changed by the influx of high-concentration gas, and methane draft pressure will be formed in roadways with height differences. The existence of methane draft pressure may also cause air volume reduction, airflow stagnation and even lead to airflow reversal in some roadways of ventilation networks, resulting in airflow disorder. In recent years, a number of achievements have been made in studies on airflow induced by methane draft pressure with different roadway conditions; however, currently available literature fails to provide a summary study on airflow catastrophes induced by methane draft pressure. Therefore, this paper introduces the definition of methane draft pressure, its influences on ventilation networks, experimental and simulation research, and influence factors and prevention measures of airflow disorder induced by methane draft pressure. It is concluded that methane draft pressure is an important area for future studies on airflow disorder in roadways to cover.
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References
Wang, K., et al.: Experimental study of high concentrations of coal mine methane behavior in downward ventilated tilted roadways. J. Wind Eng. Ind. Aerodyn. 158, 69–80 (2016)
Zhou, A., Wang, K.: A transient model for airflow stabilization induced by gas accumulations in a mine ventilation network. J. Loss Prev. Process Ind. 47, 104–109 (2017)
Li, E.L.: Experimental study on diffusion and diffusion of roadway disorder. J. Northeast. Univ. (Natural Science) 3, 65–69 (1989)
Lu, G.L., Li, C.S., Xin, S.: Study on the law of concentration harmful gas spreading in ventilation networks. J. Shandong Univ. Sci. Technol. (Natural Science) 19(2), 120–122 (2000)
Wei, S.Y.: Gas Migration Regularities and Influential Regions of Abnormal Gas Emission. China University of Ming and Technology, Beijing (2013)
Nie, B.S., Wang, Y., Dai, L.C., Yang, C.L.: Numerical simulation of gas concentration in roadway after coal and gas outburst. In: Proceedings of 2010 (Shenyang) International Colloquium on Safety Science and Technology (2010)
Zhang, R.S., Tang, J.D.: Inquiring into the influence of mine gas on the stability of airflow. Min. Saf. Environ. Prot. 5, 31–33 (1997)
Zhou, A.T.: Research on Propagation Characteristics of Shock Wave and Gas Flow From Gas Outburst and Induced Catastrophic Law of Mine Airflow. China University of Ming and Technology, Beijing (2012)
Li, S.: Study of Dynamic Influence on Mine Ventilation Network by Gas Flow After Mine And Gas Outburst. China University of Ming and Technology, Beijing (2012)
Li, Z.X., Wang, T.M., Wang, S.Y., Wang, Y.D.: Simulation study of ventilation system disaster evolution in coal and gas outburst mine. J. China Coal Soc. 42(4), 929–934 (2017)
Wang, Y., Wu, Z.Q.: Analysis of airflow stagnation caused by the gas accumulation at the top of district raise. Inner Mongolia Coal Econ. 5, 120–121 (2017)
Wu, Z.Q.: The Study on Methane Accumulation Induced Airflow Disorder in Tilted Roadways. China University of Ming and Technology, Beijing (2017)
Zhou, A.T., Wang, K., Wu, Z.Q., Li, S.: Research on airflow catastrophic law induced by gas pressure in mine. J. China Univ. Ming Technol. 43(6), 1011–1018 (2014)
Li, Z.X., Wang, T.M., Jia, J.Z.: Numerical simulation of migration and diffusion of exogenous gas in mine roadways. J. China Univ. Ming Technol. 42(5), 731–735 (2013)
Wu, Z.Q., Chen, Z.: Impact of different fan pressures on airflow reversal induced by gas pressure. Min. Saf. Environ. Prot. 43(2), 22–25 (2016)
Wang, K., Wu, Z.Q., Zhou, A.T., Feng, S.: Study on gas flow pressure caused airflow disorder in parallel downward ventilated roadways. J. Min. Sci. Technol. (1) (2016)
Acknowledgements
This research is financially supported by the State Key Research Development Program of China (Grant No. 2016YFC0600708, 2016YFC0801402); National Natural Science Foundation of China (Grant No. 51474219, 51604278, 51774292); the Open Funds of Hebei State Key Laboratory of Mine Disaster Prevention (Grant No. KJZH2017K02); the Yue Qi Distinguished Scholar Project, China University of Mining and Technology, Beijing; the Yue Qi Young Scholar Project, China University of Mining and Technology, Beijing.
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Wang, K., Li, L., Zhou, A., Wu, Z., Li, S. (2019). An Overview of Airflow Catastrophe Induced by Methane Draft Pressure in Coal Mine Roadways. In: Chang, X. (eds) Proceedings of the 11th International Mine Ventilation Congress. Springer, Singapore. https://doi.org/10.1007/978-981-13-1420-9_38
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DOI: https://doi.org/10.1007/978-981-13-1420-9_38
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