瓦斯煤尘及其混合物着火爆炸特性研究进展
TD712%X932; 煤尘、瓦斯及其混合物广泛存在于煤矿、冶金等粉尘涉爆行业场所中,其着火爆炸特性各异.基于广泛的文献调研,系统研究了煤尘、瓦斯及其混合物等3 种不同可燃物着火爆炸特性的测试方法、实验结果及影响因素;分析了研究爆炸特性对于预防和减轻工业环境中瓦斯和煤尘爆炸相关灾害的重要性.分析结果表明:即使瓦斯和煤尘浓度低于其爆炸下限值,混合爆炸仍可能发生,混合物通常具有更高的爆炸严重性和爆炸敏感性;瓦斯、煤尘及其混合物的爆炸特性受瓦斯煤尘浓度、实验环境条件及煤粉的物理化学性质等多种因素的影响.未来,瓦斯煤尘及其混合物着火爆炸探索的重点包括化学动力学、爆炸抑制和缓解措施,以及特殊条件下的着火...
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| Published in | 矿业安全与环保 Vol. 51; no. 6; pp. 42 - 53 |
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| Main Authors | , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
东北大学 资源与土木工程学院,辽宁 沈阳 110006%中煤科工集团沈阳研究院有限公司,辽宁 沈抚示范区 113122
01.12.2024
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1008-4495 |
| DOI | 10.19835/j.issn.1008-4495.20240911 |
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| Abstract | TD712%X932; 煤尘、瓦斯及其混合物广泛存在于煤矿、冶金等粉尘涉爆行业场所中,其着火爆炸特性各异.基于广泛的文献调研,系统研究了煤尘、瓦斯及其混合物等3 种不同可燃物着火爆炸特性的测试方法、实验结果及影响因素;分析了研究爆炸特性对于预防和减轻工业环境中瓦斯和煤尘爆炸相关灾害的重要性.分析结果表明:即使瓦斯和煤尘浓度低于其爆炸下限值,混合爆炸仍可能发生,混合物通常具有更高的爆炸严重性和爆炸敏感性;瓦斯、煤尘及其混合物的爆炸特性受瓦斯煤尘浓度、实验环境条件及煤粉的物理化学性质等多种因素的影响.未来,瓦斯煤尘及其混合物着火爆炸探索的重点包括化学动力学、爆炸抑制和缓解措施,以及特殊条件下的着火爆炸特性等. |
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| AbstractList | TD712%X932; 煤尘、瓦斯及其混合物广泛存在于煤矿、冶金等粉尘涉爆行业场所中,其着火爆炸特性各异.基于广泛的文献调研,系统研究了煤尘、瓦斯及其混合物等3 种不同可燃物着火爆炸特性的测试方法、实验结果及影响因素;分析了研究爆炸特性对于预防和减轻工业环境中瓦斯和煤尘爆炸相关灾害的重要性.分析结果表明:即使瓦斯和煤尘浓度低于其爆炸下限值,混合爆炸仍可能发生,混合物通常具有更高的爆炸严重性和爆炸敏感性;瓦斯、煤尘及其混合物的爆炸特性受瓦斯煤尘浓度、实验环境条件及煤粉的物理化学性质等多种因素的影响.未来,瓦斯煤尘及其混合物着火爆炸探索的重点包括化学动力学、爆炸抑制和缓解措施,以及特殊条件下的着火爆炸特性等. |
| Abstract_FL | Coal dust,gas and their mixtures exist widely in dust explosion industries such as coal mines and metallurgy,but their characteristics of ignition and explosion are different.In view of this,based on extensive literature research,the test methods,experimental results and influencing factors of the ignition and explosion characteristics of three different combustibles including coal dust,gas and their mixtures were systematically studied.The importance of studying explosion characteristics for preventing and mitigating related hazards of gas and coal dust explosion in industrial environment was analyzed.The results of analysis show that even if the concentration of gas and coal dust is lower than the explosion limit,the mixed explosion may still occur,and the mixture generally has higher explosion severity and explosion sensitivity.The explosion characteristics of gas,coal dust and their mixtures are affected by the concentration of gas and coal dust,experimental environmental conditions and physical and chemical properties of pulverized coal.In the future,the focus of in-depth exploration of ignition and explosion of gas,coal and dust and their mixtures includes chemical dynamics,explosion suppression and mitigation measures,and ignition and explosion characteristics under special conditions. |
| Author | 孙凯文 李刚 刘正东 张志烊 田富超 苑春苗 |
| AuthorAffiliation | 东北大学 资源与土木工程学院,辽宁 沈阳 110006%中煤科工集团沈阳研究院有限公司,辽宁 沈抚示范区 113122 |
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| Author_FL | YUAN Chunmiao TIAN Fuchao ZHANG Zhiyang LIU Zhengdong LI Gang SUN Kaiwen |
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| Keywords | explosion parameter 瓦斯爆炸 煤尘爆炸 煤尘瓦斯混合爆炸 爆炸参数 爆炸特性 mixed explosion of coal dust and gas gas explosion coal dust explosion explosion characteristic |
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| Title | 瓦斯煤尘及其混合物着火爆炸特性研究进展 |
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