外文翻译--薄煤层综采设备的研制及工艺参数优化.doc

【外文文献】1ThethincoalbedsynthesispickstheequipmentthedevelopmentandthecraftparameteroptimizationMainlydiscussedthethincoalbedsynthesiswhichZaozhuangMiningindustryGroupCompanyindependentlydevelopedtopicktheequipmentinTiantheChenKuangsuccessapplication,andtoitssupplementaryequipmenttechnologicaltransformationsandthetechnicalcharacteristic,theworkingsurfacegeologicalcondition,thesynthesispickedtheequipmentthecraftparameteroptimizationandtheworkingsurfaceworkingprocedurereasonablematchsafeguardtechnologymeasurehascarriedonthethoroughanalysisandtheintroduction.Becausethethincoalbeditsminingspaceisnarrow,theefficiencyislow,theworkingsurfaceconditionisbad,machineryequipmentnotnecessaryorminingcoalcraftimperfectandsoontechnicalquestions,difficultywithrealizestheminepithighlyeffectiveandthesafetyinproduction.ZaozhuangMiningindustryGroupCompanyprofitsfromtheexperiencewhichmyguozhongthickabovecoalbedsynthesispicks,pickedthesupplementaryequipmentinthethincoalbedsynthesisthedevelopmentandthecraftparameteroptimizationaspecthascarriedonthebeneficialexploration.InOctober,2003,ore531workingsurfacesequippedinitsTiantheChenhasindependentlydevelopedandtheimprovementthreemachinessupplementaryequipment,hasobtainedthetangibleeffect,realizationmaximumdailyproduction3504t,theaveragemonthproduced89636t,createdtherollerthincoalbedsynthesistopicktheunittoyearlyproduce1,000,000tonnewlevels.Equipsthisworkingsurfaceequipmentfundinvestmentis1088.10Yuan,theequipmentdoesnotinvestintotheequipmentcoalplowsurface1/10.First,thesynthesispicksthethreemachinesnecessaryandthetechnicalcharacteristic(1)hydraulicpressuresupportAccordingtothethincoalbedminingcharacteristic,usesthecomputertocarryonthemovementanalysisoptimizationandtheintensitydesigntothesupportfourlinkmotiongears,satisfiestheworkingcondition,optimizedthesupportstructure:(1)supportforthesupportshieldtype,hasusedtheoveralltop-beam,twocolumnsupportshassatisfiedthebigexpansionandcontractionrequest；(2)mainstructuralelementwiththeQ550highstrengthstructuresteelplatemanufacture,reducedthesupportweight.Frontusesweldspreheating,afterweldstheartificialagingweldingcraft,theguaranteestructuralelementweldingquality；(3)selectsthegreatcurrentcapacityhydraulicpressurepart,enhancesthesupportthespeedofresponse；(4)reasonablearrangementhydrauliccircuitsystem,hasenlargedthehuman,machinethespace.ItsdevelopmentZY2400/08/19hydraulicpressuresupporttechnicalcharacteristicisasfollows:Twocolumnsupportshieldtype,support0.81.9m,supportwidth1.431.6m,centerdistance1.5m,workingresistance2400kN,supportsandprotectionsintensity0.410.46MPa,theadaptationinclinationangleisnotbiggerthanhighly35,operatingmodeforneighbourcontrol,supportweight6500kg.(2)coalminingmachineUnifiesthincoalbedminingthetechnicalcharacteristic,hascarriedonthetransformationtothecoalminingmachinefollowingseveralaspects:(1)improvementdesignpumpbox,thesolutiongivesoffheatthequestion,satisfiesthesynthesistopicktheoperationpercentagehighoperatingmodeneed；(2)designsagroupoftaperingspindlerockingshaftspecially,causesthedrumcirclediametertoreduce,increasestheleafbladealtitudecorrespondingly,doesaninsidejobthequantityrequestsatisfiedly；(3)optimizeddrumdesign,increasestheleafbladespiralangleofclimbingreasonably,theimprovementcoalingeffect；(4)decreasesthefuselagesuitablyhighly(824mm),coalminingmachineeachbigjointplacehasmadethecorrespondingimprovement.AfterthetransformationcoalminingmachineMG200-BW2technicalcharacteristicisasfollows:Pickshighscope1.02.0m,theadaptationinclinationangleisnotbiggerthan35,theadaptationcoefficientofhardnessf3.5,drumdiameter800/1000mm,machinesurfacealtitude824mm,doesaninsidejobmeasures91mm,thehaulingwayforthenon-chainhauling,biggestforceoftraction250kN,haulingspeed06.14m/min,installingequipmentpower200kW,voltagerank660/1140V,machinegrossweight15t,machinetotallength7858mm.(3)scraperconveyerMainlyhascarriedonthetransformationtothescraperconveyerinfollowingseveralaspects:(1)hasusedinthethincoalbedscraperconveyerthedoublestrandtransmissionstructure,losesthecoalconditiontobeabletoimprove；(2)homeforthefirsttimeusedmiddlethe22Etroughsectiononthethincoalbedscraperconveyer,thecompletemachinerigidity,theintensityhadenhancesgreatly；(3)reducesthenose,theairplanetailtroughhighly(isexcessively430mm),improvedthecoalminingmachinetothenose,theairplanetailcoalwallcuttingcondition；(4)strengthenedtheshovelboard,thecabletankframe,thehaulingplatoonhassoldandsoonplacethejointstructure.AfterthetransformationscraperconveyerSGZ-630/220technicalcharacteristicisasfollows:Completedlength170m,thetransportationmeasures450t/h,theinstallingequipmentpower2110kW,scraperchainfast1.07m/s,tightchainwayforbrakedisctightchain.Second,workingsurfacegeologicalconditionThedevelopmentsynthesispickstheequipmentore531workingsurfacestoapplyforthefirsttimeinTiantheChen,theworkingsurfacemovestowardsthelongwalltypearrangement,movestowardsthelengthis950m,theinclinedlengthis156m,coalbedthickness0.43.0m,average1.25m,coefficientofhardnessf=2,thecoalbedinclinationangle1015,average13,reserves283,400t.Coaldustexplosionindex31.9%,isthestrongexplosivecoalbed.Theworkingsurfacehasthemudstonefalseroofpartially,thick01.8m,softeasytobrave,itsupsidedividesintotheirongreythinsilicarenite,aboutitslowerpartlaminationthick1.5mforgoesagainstdirectly,aboveforaveragethickness33.5m,hard,thecrevassegrowthalwaysgoesagainst.Theledgerwallpart