零压通风增温防冻技术在高寒漏风矿井中的应用  

Application of Zero Pressure Ventilation Warming and Antifreeze Technology in Alpine and Air-Leakage Mine

作　　者：尤祎[1] YOU Yi(Changsha Engineering and Research Institute Ltd.of Nonferrous Metallurgy,Changsha 410000,China)

机构地区：[1]长沙有色冶金设计研究院有限公司,长沙410000

出　　处：《有色金属工程》2021年第5期80-86,共7页Nonferrous Metals Engineering

基　　金：国家重点研发计划项目(2016YFC0801600,2018YFC0604600)。

摘　　要：针对高寒漏风矿井冬季井巷及炮孔冻结难题,依据风量风压平衡原理,建立了零压通风增温技术理论模型,结合典型高寒漏风矿井,利用Ventsim分析了漏风规律及风温分布规律,并建立零压通风增温防冻三维动态模型,最后通过现场试验对防冻效果进行了验证。结果表明:零压通风增温防冻技术方案实施后,进风井巷风温达到15.7℃,冬季井下采掘作业面风温在1.1~5.8℃,均高于冰点,彻底解决了高寒漏风矿井井下巷道及中深孔冻结难题。Aim at solving the freezing problem of shaft and tunnel and blast hole in alpine air-leakage mine in winter,and based on the the principle of wind pressure balance,the theoretical model of zero pressure ventilation warming technology is established.Combined with the typical alpine and air-leakage mine,the law of air leakage and distribution of air temperature are analyzed by Ventsim,and the three-dimensional dynamic model of zero pressure ventilation for warming and antifreeze is established.Finally,the anti-freezing effect is verified by field test.The results are showed that:after implementing the scheme of zero pressure ventilation for warming and antifreeze,the air temperature of the intake air shaft reaches 15.7℃,the air temperature of underground working face is between 1.1℃and 5.8℃in winter,which both above freezing point,the freezing problem of shaft and tunnel and blast hole in alpine air-leakage mine has been solved thoroughly.

关 键 词：高寒漏风矿井 零压通风 增温防冻 

分 类 号：TD728[矿业工程—矿井通风与安全]