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机构地区:[1]山西晋城煤业凤凰山矿,山西晋城048007 [2]辽宁工程技术大学安全科学与工程学院,辽宁阜新123000 [3]矿山热动力灾害与防治教育部重点实验室,辽宁阜新123000
出 处:《矿业安全与环保》2017年第1期83-86,90,共5页Mining Safety & Environmental Protection
摘 要:为掌握凤凰山矿通风系统的阻力分布状况、确定通风系统优化手段,选择气压计法和测量精度较高的压差计法相结合的测定方法对其进行阻力测定,并对测定数据和结果进行了平差处理和误差检验,结果显示本次测定数据可靠,并发现目前通风系统存在有效风量率偏低、外部漏风量大、三区阻力分布失衡等问题。针对此问题,采取封闭91、94、154和155盘区,收缩151盘区和改二水平主回风巷为进风巷等措施,对该矿通风系统进行优化。优化后通风系统有效风量率由82.70%上升到88.37%,三区阻力分布较为均衡,较优化前通风系统更加安全可靠。In order to master the resistance distribution of the ventilation system and determine its optimization techniques in Fenghuangshan Coal Mine, a method combining the barometer method and high-precision differential pressure meter method were selected to measure the ventilation resistance, the adjustment processing and error inspection were made on the measured data and results. The results showed that the measured data were reliable, and it was found that the effective air quantity of the existing ventilation system was low, its external air leakage was large and its three-zone resistance distribution was in imbalance. Aiming at these problems,some measures were taken to optimize the ventilation system of the mine, including closing No. 91, No. 94,No. 154 and No. 155 panels, shrinking No. 151 panel and changing the main return airway on No. 2 level into intake airway. After optimization,the effective air quantity rate increased from 82.70% to 88.37%, and the three-zone resistance distribution was more balanced, and the ventilation system became more secure and reliable.
关 键 词:通风阻力测定 气压计法 压差计法 系统分析 优化 有效风量率
分 类 号:TD724[矿业工程—矿井通风与安全]
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