The shortest period of coal spontaneous combustion on the basis of oxidative heat release intensity
| Autor: | Yongliang Yang, Fanjun Gu, Shisong Hou, Zenghua Li, Siyuan Gao, Yibo Tang |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
lcsh:TN1-997
Waste management Period (periodic table) Chemistry Coal spontaneous combustion Energy Engineering and Power Technology Thermodynamics Activation energy Geotechnical Engineering and Engineering Geology Heat capacity Geochemistry and Petrology Desorption Scientific method Spontaneous combustion Intensity (heat transfer) lcsh:Mining engineering. Metallurgy |
| Zdroj: | International Journal of Mining Science and Technology, Vol 24, Iss 1, Pp 99-103 (2014) |
| ISSN: | 2095-2686 |
| Popis: | It’s necessary to forecast the shortest spontaneous combustion period for preventing and controlling the coal spontaneous combustion. During the experimental process, a calculating model of the SSCP is established on the basis of the oxidative heat release intensity and thermal capacity at different temperatures. According to the basic parameters of spontaneous combustion, heat of water evaporation and gas desorption, the SSCPs of different coals are further predicted. Finally, this study analyzed the relationships of the SSCP and the judging indexes of the self-ignite tendency. The result shows that the SSCP non-linearly increases with the decrease of dynamic oxygen adsorption and increase of activation energy. Compared with the practical fire situation of mine, this reliable method can meet the actual requirement of mine production. Keywords: Coal spontaneous combustion, The shortest period of spontaneous combustion, Heat release intensity of coal oxidation, Thermal capacity, Judging indexes |
| Databáze: | OpenAIRE |
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