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Application of Liquid CO2 in Mining Fighting Fire
Author(s): 
Pages: 21-23
Year: Issue:  3
Journal: SAFETY IN COAL MINES

Keyword:  液态CO2煤自燃防灭火;
Abstract: 液态CO2防灭火技术就是借助液态CO2汽化后本身的气体压力进行输送,并将其注入防灭火的区域.将液态CO2防灭火应用于矿井防灭火中有着氮气、烟气等惰性气体无法比拟的优点,在经济上节省,运输上方便、灭火性能好等特点.文章在系统分析液态CO2的性能、灭火机理及压注系统的基础上,结合南屯煤矿实际情况,成功地将液态CO2防灭火技术运用于煤层自燃火灾的防治,利用电厂冷却塔的水进行水式汽化,成功地解决了在CO2释放后由于气体温度较低而引起的管路冻缩的问题,具有较强的推广应用价值.
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