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外文文献Multi-ropefrictionhoistropefornewtechnologyMulti-ropefrictionhoistwireropereplacement,itisusuallytheuseoffourfixedsteadystringofnewcarsofoldrope,processcomplexity,constructionpersonnelandVIinthewellshaftoperations,theriskoflargerandlongermineproduction,Sohowtoreplacethemainwireropehoistsuchmoresecurity,time-saving,hasbeenthegoalofresearch1、Constructionofpreparation(1)inadvanceofthewedge-shapedhangingbackupdetectiondeviceonthenewwireropetesting,inlinewiththe"CoalMineSafetyRegulations"sectionoftherelevantprovisionsof402,themeasurementofsize,werecutintofourentangledinroperoller4on,accordingtotherequirementsoftwistputonthenorthsideofthederrick,andfixed.(2)Northderrickhookintheappropriatelocationofthefixedbeam-orientedroundoffourinordertosmoothmovementofwirerope.(3)Automaticadjustmentoflevelingoutthevolumeofthefueltankofalever,thefirstself-balancingsothatthefueltankoftheSouthHookextendedtheamountofleverageinlinewiththeclosureoftheSouthHookBalancingtanksattheirrespectivecut-offvalve,run1day,thenthevolumeofcheckthefueltankbetweenthetwohookleveroutofthevolume,andrecord,andasthebasisforcut-offrope.(4)readytouselongandshortboard,longboardneedsthree,theneedforashorteightboards.(5)readytoadequateandreliablelightingfacilities,aswellasthesignal,wire,wood,andcommonlyusedtoolssuchasI-steel,andchecktheireligibility.2、Constructionofsteps(1)top-downclean-upplatforms,derrickandtheshaft,removalofrollershield.VIwellabovetheoldstringwithnewstring,specificmethodsareasfollows:①CanswillbeparkedinthesouthtanktoplevelVIandthelocationofwells;②VIinwellsadjacenttothenorthcantaketheworkplatform,thenewropethroughthewindowwellwallTabeiVIandfourdrivenwheels,andfourcansoftheoldNorthropeslong,respectively,3m,slightlysmallbundled,tiedforthenewDepartment3(newropeintheoldside).Specificbindingisasfollows:firstone3mlonghempropearound1mintensivenewrope,hempropeandthentheremainingentangledintheoriginallocationofthenewjusticewillbethenewandoldropestiedtogether,thehempropetiedafterwaterimmersion(tiedupalitt