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

外文翻译--混凝土喷射机的概述及改进.doc外文翻译--混凝土喷射机的概述及改进.doc -- 5 元

宽屏显示 收藏 分享

页面加载中... ... 广告 0 秒后退出

资源预览需要最新版本的Flash Player支持。
您尚未安装或版本过低,建议您

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
编号:201311171200546172    大小:66.00KB    格式:DOC    上传时间:2013-11-17
  【编辑】
5
关 键 词:
教育专区 外文翻译 精品文档 外文翻译
温馨提示:
1: 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
2: 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
3.本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 人人文库网仅提供交流平台,并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
  人人文库网所有资源均是用户自行上传分享,仅供网友学习交流,未经上传用户书面授权,请勿作他用。
0条评论

还可以输入200字符

暂无评论,赶快抢占沙发吧。

当前资源信息

4.0
 
(2人评价)
浏览:17次
英文资料库上传于2013-11-17

官方联系方式

客服手机:17625900360   
2:不支持迅雷下载,请使用浏览器下载   
3:不支持QQ浏览器下载,请用其他浏览器   
4:下载后的文档和图纸-无水印   
5:文档经过压缩,下载后原文更清晰   

相关资源

相关资源

相关搜索

教育专区   外文翻译   精品文档   外文翻译  
关于我们 - 网站声明 - 网站地图 - 友情链接 - 网站客服客服 - 联系我们
copyright@ 2015-2017 人人文库网网站版权所有
苏ICP备12009002号-5