会员注册 | 登录 | 微信快捷登录 支付宝快捷登录 QQ登录 微博登录 | 帮助中心 人人文库renrendoc.com美如初恋!
站内搜索 百度文库

热门搜索: 直缝焊接机 矿井提升机 循环球式转向器图纸 机器人手爪发展史 管道机器人dwg 动平衡试验台设计

   首页 人人文库网 > 资源分类 > DOC文档下载

外文翻译--混凝土喷射机的概述及改进.doc

  • 资源星级:
  • 资源大小:66.00KB   全文页数:8页
  • 资源格式: DOC        下载权限:注册会员/VIP会员
您还没有登陆,请先登录。登陆后即可下载此文档。
  合作网站登录: 微信快捷登录 支付宝快捷登录   QQ登录   微博登录
友情提示
2:本站资源不支持迅雷下载,请使用浏览器直接下载(不支持QQ浏览器)
3:本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰   

外文翻译--混凝土喷射机的概述及改进.doc

SummarizationandimprovementofconcreteejectingmachinesFANHuaQIULinfengCHENLingfangAbstractThetextintroducestheprinciple,styleanddevelopmentprocessofdryandwettypeconcreteejectingmachines.Itanalyzesdomesticandforeignapplicationinstance,allkindsofconcreteejectingmachinesmostlymeritandflaw.Alsoitintroducessomerepresentationalwetconcreteejectingmachinesdomesticdeveloped.Someflawsofconcreteejectingmachinesareimproved.Keywordsconcreteejectingmachines,framecharacteristic,operatingprinciples,highway.Concreteistheuseofcompressedairjet,willbeallocatedacertainlevelandgoodwatercementratiomixingconcretematerials,throughthepipelinebythejetnozzle,andhighspeedjetouttothesurfacebysprayingaconcretesupportLayerissprayedconcreteconstructionequipmentoperationsinthemain.Asaconcretesprayingtechnologysavingconcreteandsteel,timber,laboursavingandimproveconstructionefficiencyandreducecosts,andothercharacteristics,theconcreteapplicanofthejetincreasinglycommon.Hasnowbeenwidelyusedinrailway,highway,waterconservancy,construction,coalandotherbuildingworksinconstruction,atunnelsolution,roadslope,constructionpit,undergroundworksoftemporaryandpermanentcaretosupporttheconstructionmachineryoperations.11TheworkofsprayedconcretemechanismandthedevelopmenttrendInsprayedconcreteoperations,theoverwhelmingmajorityoftheuseofconcreterotoraircraft,suchasjetstructureissimple,reliableperformance,asmall,lightweight,easytooperateandmaintenance。Dryjetprincipleandstructurearetherotorwithalinertoacertainspeedofrotation,andthecombinationofpressureplatesfixedonthelinerfixed,withaboardconnectedintothewindpipeanddischargingelbow,whenRotorequippedwithmaterialsinthevariousmaterialsCuprotationandintothewindtotheelbowanddischargingthesametime,intheroleofgasunderpressure,andmaterialsthroughtheelbowandexpectedtolosethematerialtransportedtothenozzleandnozzleinthewaterBlastingaway.Dryconcretejetofthemainadvantagesisalongdistancecarrier,simpleequipment,durable,butbecauseitissodrynozzles,mixingconcretemixedwithwater,andthereforetheconstructiondust,aremoreresilient,drysprayingoperationsagainstworkersinthedustHealth,inparticularthenarrowroadwayconstruction,dustpollutionismoreserious2。Fromthe1960sonwards,inWesterndevelopedcountries,wetsprayingbegangraduallyintroducingthetechnology,allkindsofwetconcreteJetsalsobedeveloped,sprayedconcreteanddrythemaindifferenceisthatenoughinwatercementratiorequirementsshouldbeThevolumeoftheopportunitytojointhemixingofdifferentwater。WetsprayedconcreteisexpectedlosetheiraccesstotheformerMixturehasaddedafootofwatermixing,theloserinthedeliveryofthecylinderisthewetconcretedrysprayedconcreteislostinthetransmissionofthematerialdidnotjointhemixingWaterdrymaterialgroundhumiditymixingnaturalmaterialsordryingmaterials,andinsufficientvolumenozzlebeforemixingwithwater,drymixtureandmixquicklyafterthewholewetconcretedeliveredtothenozzle,speedupthecoagulationofthedopedAfterthejettobeamamaterialofconstruction3.Atthenationallevel,aspeoplesenvironmentalawarenessandenhancethequalityofsprayedconcreterequirementsoftheincrease,anincreasingnumberofwetconcreteintotheuseofjetaircraft.Inrecentyears,somedomesticunitsalsobegantodevelopseveralwetconcretejet,butthescaleofproductionisstilltobeexpanded.Tosumup,jetwetconcreteofthemainadvantagesarethefollowing1greatlyreducedtheplaneandnexttothenozzlesofdustconcentrationandeliminatethehealthhazardstoworkers.2highproductivity.DryconcreteJetsgeneralnomorethan53m3/h,andtheuseofjetwetconcrete,artificialoperationsupto103m3/h,amechanicalmanual,upto203m3/h.3Thereboundwaslow.JetDry,concretereboundofupto15percentto50percent,thewetspraytechnicalreboundratecanbereducedtobelow10.4wetspray,easytocontrolbecauseofwatercementratio,ahighdegreeofconcretehydration,itcansignificantlyimprovethequalityofsprayedconcreteandimprovequalityoftheconcreteabsorbed.2WetconcreteJetsandthetypeofworkprincipleConcretePumpingmainpistonpumpjetsprayandawetwetsprayingmachinescrewpumptwocategories.Pistonpumpjetaircraftwillbewetplungerwetconcreteasaconcretepumpthebasicbodyjet,withtheexportpipelinetothenozzleandinthisAccesstocompressedgaswilljetoutofconcrete,wetspraysuchaheavymachinegeneralHowever,longdistancetransmission,SecondBeach,theXiaolangdiWaterConservancyProjectandotherlargescaleuseoftheaircraftsmaindisadvantageisthatlowproductivity,andscrewthestatorsetsofwearandtearmoreserious,therewaslittlescopeofapplication.3DomesticwetconcreteJets3.1SPZ26wetconcreteJetsSPZ26wetconcretejetsenttoagasrotoraircraftwetconcrete,anditsworkingprincipleofLiwa280RuishiAsimilarmodel,byitsrotorrotarymotordrivenbyreducer,theaircraftequipmentlessinvestment,highproductivity,lightweight,Goodmobility4.3.2PZ25BConcretejetaircrafttospraydry,wetsprayandspraytide.Itautomaticallyclean,nonstickblock,cuttingspeed,littlemorethanexpected,highefficiency.3.3impellerwetconcretewetconcreteimpellerjetaircraftisanewwetsprayingmachine,itadoptedaimpellerfeedingdevice,areliable,longlife,toaggregatesizeofthebigadvantages.Atpresent,Chinasdevelopmentofthewetconcretepumpinganddualusesprayspraywetconcretetunnelconstructionisindispensabletoengineeringequipment,themainimpellerandrotorpistontypepumpsandwetsprayingmachine.Impellerandrotorpistonwetsprayingmachineshortdistancetransportation,displacementofsmall,fragilepiecesofshortlife,seriousleakagepulp,cleaningalongtime5.4JetpromotetheuseofwetconcreteinsomeoftheissuestoberesolvedAtpresent,duetowetjettechnologyhasobviousadvantages,wetconcreteJetsintheprojectisalsoanincreasingnumberofapplications,butbecausetherearesomeoutstandingissues,thewetconcretetopromotetheuseofjetplayedacertainobstaclesRole,eveninChina,currentlythemainsprayedconcreteoperationsisstilldryspray.1useofwetconcretejetofliquidcondensate,ajointventureofimportsandhigherpricesupto6000yuan/t8000元/t,anddomesticliquidcondensateofnoproduction,shouldberelativelydrySprayofpowderandquicksettinglowpricemorethan1000yuan/t.2lowlaborcostsandpeoplesenvironmentalawarenesstobeincreased.3wetconcretejetoperations,morecomplexequipment,operationandmaintenanceofjetaircraftforlessthandry.4theuseofwetconcretejetoperations,higherequipmentinvestment.5Improvementofconcreteejectingmachines5.1Aftertheconcreteimprovementofthecharacteristicsofajet1dustbetter.Theimproveduseofthesealcannotbedust,hasgreatlyimprovedtheworkingconditionsofworkers,increasedlaborproductivity.2increasetheflexibilityofhighadhesiverubbermaterialcavity.Concretecanbeaneffectivesolutiontotheproblemofbondedeasily,removetheconcretetoreducethenumberofbondedandimprovelaborefficiency.3useofwearresistantrubberpads.Rubbermatsmorethandoublethewearresistance,adecreaseofrubberpadstoreducethefrequencyoftheuseofreplacementcost.4theoverallchangefromtheoriginaldriveshaftcomposedofthreeparts,noteasytosolvethedemolition,theproblemofmaintenance.5.2ImprovethedifferencebetweenbeforeandaftertheconcreteJets1theoriginalconcretejetrotatingbodyformedbythewearresistantcastironfoundry,withouttreatment,aftertherustbonding,improvedafterthejetcavitysprayingantirusttreatmentandgreatlyreducethepossibilityofabond.2theoriginalconcretejetrotationofdirectcontactwiththematerialI,Mifengbuyanfeedmouthwithoutsealingdevice,improvedtoincreaseawearresistantrubberpadsandmouthandfeedring.3)Inrotatingbodyandmouthspraytoincreaseflexiblerubbermaterial,andtherotationoftheoriginalconcretejetsprayandaflexiblerubbermouthcavity.Concreteworkofahighpressurejetofaircavity,flexiblerubberintheaircavityunderthepressureofbeingcompressed,rotatingbodyisconstantlyrotating,whentherotationofthechamberpassedaflexiblerubberpressurezone,thepressuredisappeared,flexibleRubbercavityinthestretchunderitsownrestitutionduetothehighflexibilityofrubberattachedtothecavityontheconcreteandscatteredbysqueezingdown,automaticremovaloftheconcretebonding,inordertofacilitatemaintenanceandreplacementoftherotatingflexiblerubberLiucavity,theoverall12willbesplitintofourcavity,eachofthethreecavity.Thesametoken,Iexpectedtoincreaseinaflexiblerubbermaterialcavity.4theoriginalconcretejetdriveshaftfortheoverallstructure,cleaninguptherotatingbodycavityorreplacementworkflexiblerubbermaterialcavity,tobescreenedinShangzuobodyandcanalsoXiediao,willimprovetheentireshaftisdividedintothreeparts,Themiddleofaconnectingshaft,throughthehomeside,connectingshaft,thepinwillbelinkedtothetwoaxis,demolition,onlytoteardowntheshaftcanbeconnectedinblocksoflift,thereplacementofflexiblerubberbodycavityorcleanuprotation,Provincewhentheeffort,boostedbyincreasingtheflexibilityofrubberrubbersealcavityandthedriveshaftconnectedtothebodystructureandeffectivesolutiontothedustandinconveniencetothedemolitionofconcreteandbondissues,someusefromthescene,hasbeenmadeGoodresults.6Theendconclusionofawavewhilesprayingcanreducedustconcentrationandreducetherateofrebound,butthedusthazardstillexists,stillhigherratesreboundfromtherequiredstandardthereisstillaconsiderabledistance.Allcountriesintheworldofwetconcreteofthejetatthesametime,developedajetofwetconcrete,andincreasinglymature,manycountrieshavestartedtousealot.Chinascurrentwetspraymethodisstillintestingstageandnotyetfullypromotetheapplicationlevel.Mainlywetsprayingmachinesize,complexityoftheaggregatedemandhigh,andChinasproductionofliquidcondensate,theadmixtureofpoor,theimpactofthewetjetpromotionandapplication.InthisregardChinasmanyunitshavebegunresearch,andhasmadebigprogress7.Developmentofreliableperformance,smallsize,forthescenetopromotetheuseofthewetsprayingmachineisstillthefutureofsprayedconcretetechnologyoneofthemaindirection.1XuTianen.ConcreteJetsthestatusquoanddevelopmenttrendofJ.CoalScienceandTechnology,1997,25930231.2LiuYunKai.ConcretedustandjetbondedimprovementsJ.Jiangsucoal,2003461262.3WangXiaobao.WetconcreteJetsandthetypeofdevelopmentJ.Engineeringmachinery,20041148249.4ChenHuiHan.ImproverotoraircraftservicelifeofconcretetechnicalmeansJ.Wellbuilt,2003836237.5FanGuangqin,ZengKangSheng,XuLongWharf,etc.jetflyashconcretesupportofthepilotstudyJ.Wellbuilt,1993266267.6YiGonginitiatives,HanJun,ZHANGRenwater.HighStrengthofsprayedconcreteJ.CoalScienceandTechnology,1993,21240242.7WangFangrong.AnalysisofChinasconcretesprayingtechnologyandequipmentJ.Wellbuilt,1996,79545,246

注意事项

本文(外文翻译--混凝土喷射机的概述及改进.doc)为本站会员(英文资料库)主动上传,人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知人人文库网([email protected]),我们立即给予删除!

温馨提示:如果因为网速或其他原因下载失败请重新下载,重复下载不扣分。

copyright@ 2015-2017 人人文库网网站版权所有
苏ICP备12009002号-5