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Journal of Kunming Metallurgy College ›› 2020, Vol. 36 ›› Issue (3): 1-8.DOI: 10.3969/j.issn.1009-0479.2020.03.00

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Optimization of Power Supply Route for High-Temperature Deep Well Air Intake in Liuju Copper Mine

ZOUYousen,ZHUXianchun,ZHURongcheng,ZHUHuaikun,YINJigui,DUANYongxiang   

  1. (1MineResearchInstitute,TechnologyCenter,YunnanCopperGroupCorporation,Kunming650051,China;2LiujuCopperMine,ChuxiongMiningandMetallurgyCo.,Ltd.,Dayao675401,Yunnan,China;3FacultyofMetallurgyandMiningEngineering,KunmingMetallurgyCollege,Kunming650033,China)
  • Received:2020-03-31 Online:2020-09-19 Published:2020-11-26

Abstract: InordertosolvetheproblemsofoverlappingdevelopmentofthreelevelinclinedshaftsinthedeepcuttingofhightemperaturedeepwellsintheLiujuCopperMine,thelongairintake,liftingandpowersupplylines,theincreaseinfreshairtemperature,thelongtimeforliftingandthelargecircuitloss,etc.Throughoptimization,anewshaftfromthesurfacetothedeepminingareawasadded,thedevelopmentsystemwasoptimized,andthelengthoftheairintake,liftingandpowersupplylineswasshortened.Thetemperatureriseoffreshairisreducedfrom242℃ to170℃,theairvolumeisincreasedfrom10376m3/sto17695m3/s,thetemperatureofthestopeisreducedfrom330~370℃to278~330℃,thepowerconsumptionofthemainandauxiliaryfansisreducedfrom8895kW to80993kW,thepersonnelround-triptimeisshortenedfrom4hoursto1hour,theworkingtimeisincreasedfrom4hoursto7hours,andthepowersupplylinelossratioisreducedby617%.Although150millionyuanhasbeeninvested,thenecessaryventilation,cooling,promotionandpowersupplyconditionshavebeencreatedforthesafeminingof995milliontonsoforeworth5087billionyuan,achievinggoodinvestment,socialandeconomicbenefits.

Key words: hightemperatureofdeepwell, airintakepromotion, routesoptimizationofpowersupply

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