济宁二号煤矿南翼通风系统阻力测定及局部降阻措施.pdfVIP

2014年第6期 ^童媸爰舛披 87 济宁二号煤矿南翼通风系统阻力 测定及局部降阻措施 王连涛 (兖州煤业股份有限公司济宁二号煤矿，山东济宁272100) 摘要针对济宁二号煤矿南翼通风系统需风量大、通风线路较长的现状。为下一步进行通风系统优化提供基础依据，确保矿井 通风系统能够满足未来生产需求，进行了济宁二号煤矿南翼通风系统阻力测定。本次通风阻力测定采用精密气压计逐点测定法； 测定结果显示：济宁二号煤矿南翼通风阻力为2815．74Pa，测定误差小于5％，测定结果满足矿井通风阻力测定和通风系统分析的 精度要求；其中回风段距离占总距离的22．28％，而阻力值却达到总阻力的48．7％左右，回风段阻力值及所占比重偏高；结合现场 实际情况以及阻力测定结果提出了清理杂物、扩修巷道等局部降阻措施。 关键词煤矿通风系统能量方程通风阻力 降阻措施 中图分类号TD722 文献标识码 B doi：10．3969／j．issn．1005—2801．2014．06．36 Resistancedeterminationandlocalresistance measures reducing atsouthlimbofthesecondcoalmineof ventilation Jining system orderto for for Abstract：In fundamentalbasisthenext ventilation themine provide step systemoptimization，ensure ventilation the inthe resistanceisdeterminatedatsouth system productionrequirementsfuture，ventilation satisfying limbof of thesecondcoalmine point determinationmethod barometerisusedfor Jining，nebypoint byprecision ventilationresistancedetermination．ThedeterminationresultsshowedthattheventilationresistanceatsOUtlllimbofthe secondcoalmineof is ventilation 2815．74Pa．Determinationciterislessthan5％．Thedetermination Jining system resultsmeetthe ofmineventilationresistancemeasurementand oftheventilation return accuracy analysis system．The air for distanceaccounted22．28％ofthetotaldistance．Andtheresistancevalueisreachedtoabout48．7％oftotal resistan