煤矿瓦斯和煤尘爆炸感知报警与爆源判定方法研究

孙继平

孙继平.煤矿瓦斯和煤尘爆炸感知报警与爆源判定方法研究[J].工矿自动化,2020,46(6):1-5. DOI: 10.13272/j.issn.1671-251x.17617
引用本文: 孙继平.煤矿瓦斯和煤尘爆炸感知报警与爆源判定方法研究[J].工矿自动化,2020,46(6):1-5. DOI: 10.13272/j.issn.1671-251x.17617
SUN Jiping. Research on method of coal mine gas and coal dust explosion perception alarm and explosion source judgment[J]. Journal of Mine Automation, 2020, 46(6): 1-5. DOI: 10.13272/j.issn.1671-251x.17617
Citation: SUN Jiping. Research on method of coal mine gas and coal dust explosion perception alarm and explosion source judgment[J]. Journal of Mine Automation, 2020, 46(6): 1-5. DOI: 10.13272/j.issn.1671-251x.17617

煤矿瓦斯和煤尘爆炸感知报警与爆源判定方法研究

基金项目: 

国家重点研发计划资助项目(2016YFC0801800)

详细信息
  • 中图分类号: TD712.7

Research on method of coal mine gas and coal dust explosion perception alarm and explosion source judgment

  • 摘要: 分析了煤矿瓦斯和煤尘爆炸特征:空气中O2浓度迅速降低,CO2和CO等有毒有害气体浓度迅速升高;环境温度迅速升高,空气压力迅速增大后回落;产生较强的红外和紫外辐射;产生高温、高压、高速的爆炸冲击波和火焰锋面;产生爆炸音和震动;产生大量烟雾和粉尘;风速迅速增大后回落,风流反向;巷道垮塌、机电设备移动和损坏;造成大量人员伤亡。提出了气体(O2,CO2,CO)浓度、温度、声音、震动、气压、风速、风向、烟雾、粉尘、红外线、紫外线、图像等多信息融合的煤矿瓦斯和煤尘爆炸感知报警与爆源判定方法:通过多参数变化,辨识瓦斯和煤尘爆炸;通过不同位置参数变化幅度、变化的先后时序关系和传感器损坏情况,判定爆源。提出了传感器防护与设置方法:传感器应采用流线形或圆弧形外壳,传感器外壳应采用耐高温、防火、隔热材料;传感器应设置在巷道顶部中央;采煤工作面和掘进工作面应设置传感器,传感器应设置在距工作面10~15 m处;每一段巷道(没有分支)中部应设置传感器。提出了电缆和光缆防护与设置方法:应采用铠装电缆和光缆,电缆和光缆应具有阻燃、耐高温、抗冲击等性能;电缆和光缆应埋入巷帮和底板的夹角处;电缆和光缆也可引入压风管,用压风管防护。
    Abstract: Characteristics of coal mine gas and coal dust explosion are analyzed: Concentration of O2 in air decreases rapidly, while concentrations of CO2, CO and other toxic and harmful gases increase rapidly; Ambient temperature rises rapidly, and air pressure increases rapidly and then falls; Stronger infrared and ultraviolet radiation are generated; High-temperature, high-pressure, high-speed explosion shock wave and flame front are generated; Explosion sound and vibration are generated; A large amount of smoke and dust are generated; Wind speed increases rapidly and then falls, and wind flow reverses; Roadway collapses, electromechanical equipment is moved and damaged; A large number of casualties are caused. A coal mine gas and coal dust explosion perception alarm and explosion source judgment method based on multi-information fusion of gas (O2, CO2, CO)concentration, temperature, sound, vibration, air pressure, wind speed, wind direction, smoke, dust, infrared, ultraviolet and image is proposed: Gas and coal dust explosion can be identified through change of multi-parameters; Explosion source can be determined according to change range, change sequence of the parameters and sensor damage at different positions. Protection and setting methods of sensor are proposed: Sensor should be equipped with a streamlined or arc-shaped shell, and the sensor shell should use high-temperature resistant, fireproof and heat-insulating material; Sensor should be installed in center of roadway top; Sensor should be installed on mining face and heading face, and the sensor should be located 10-15 m away from the working face; Sensor should be installed in the middle of each roadway(without branches).Protection and setting methods of cable and optical cable are proposed: Armored cable and optical cable should be adopted, and the cable and optical cable should have properties of flame retardant, high-temperature resistance and impact resistance; Cable and optical cable should be buried at the angle between roadway side wall and floor; Cable and optical cable can also be protected by introducing into compressed air duct.
  • 期刊类型引用(22)

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    2. 余星辰,王云泉. 基于小波包能量的煤矿瓦斯和煤尘爆炸声音识别方法. 工矿自动化. 2023(01): 131-139 . 本站查看
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    14. 孙继平,余星辰. 基于声音特征的煤矿瓦斯和煤尘爆炸识别方法. 中国矿业大学学报. 2022(06): 1096-1105 . 百度学术
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    16. 徐婷婷,李树岗,郝慧斌,郝小刚,侯亮科. 瓦斯—煤尘爆炸特性研究. 煤炭与化工. 2021(01): 113-115+120 . 百度学术
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    20. 孙继平,李月. 基于双目视觉的矿井外因火灾感知与定位方法. 工矿自动化. 2021(06): 12-16+78 . 本站查看
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    22. 孙继平,范伟强. 基于视频图像的瓦斯和煤尘爆炸感知报警及爆源判定方法. 工矿自动化. 2020(07): 1-4+48 . 本站查看

    其他类型引用(10)

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出版历程
  • 刊出日期:  2020-06-19

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