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零压通风增温防冻技术在高寒漏风矿井中的应用

Nonferrous Metals Engineering(2021)

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Abstract
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.
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