金属矿山独头掘进巷道降温试验

发布时间：2018-12-09 12:29

【摘要】：金属矿山独头掘进巷道制冷系数是计算独头掘进巷道降温需冷量非常重要的参数之一,关系到能否达到预期降温效果及影响着降温工程的的经济投入。利用"金属矿山深部开采降温试验系统"分别模拟通风降温、加大风量降温、制冷降温、加大制冷降温4种条件下独头掘进巷道的降温过程,并分析独头掘进巷道降温效果,在通风及加大风量降温后,独头掘进巷道内温度先下降然后趋于稳定,再也无法下降,只有通过制冷措施,对独头掘进工作面进行降温。通过监测数据的焓差值计算出降温制冷系数,同时利用多次试验得出制冷系数范围在1.38~1.68,进而为独头掘进巷道降温设计提供设计依据。
[Abstract]:The refrigeration coefficient is one of the most important parameters to calculate the cooling requirement of single-headed tunneling roadway in metal mines, which is related to whether the expected cooling effect can be achieved and the economic investment of cooling engineering. The cooling process of single-head tunneling roadway is simulated by "temperature Test system for Deep Mining of Metal Mine" under four conditions: ventilation cooling, increasing air volume cooling, cooling by refrigeration, and the cooling effect of single-head tunneling roadway is analyzed. After ventilation and increasing air volume cooling, the temperature of single-head tunneling roadway first decreases and then tends to be stable, and can not be decreased again. Only through refrigeration measures, the single-head tunneling face can be cooled down. The coefficient of cooling refrigeration is calculated by the enthalpy difference of monitoring data, and the range of cooling coefficient is found to be in the range of 1.381.68 by many experiments, which provides the design basis for the design of cooling of single-head tunneling roadway.
【作者单位】：中钢集团马鞍山矿山研究院有限公司;金属矿山安全与健康国家重点实验室;华唯金属矿产资源高效循环利用国家工程研究中心有限公司;
【基金】：“十二五”国家科技支撑计划项目(编号:2012BAB14B01) 国家重点基础研究发展计划(973计划)项目(编号:2012CB724207)
【分类号】：TD727.2

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