外文翻译--混凝土喷射机的概述及改进-其他专业

Summarization and improvement of concrete-ejecting machinesFAN Hua 　QIULinfeng 　CHENLingfangAbstract

Summarizationandimprovementofconcreteejectingmachines - FANHuaQIULinfengCHENLingfang Abstract:processofdryand Thetextintroducestheprinciple,styleanddevelopment wettypeconcrete-ejectingmachines.Itanalyzesdomesticandforeign applicationinstance,allkindsofconcrete-ejectingmachinesmostlymerit andflaw.Alsoitintroducessomerepresentationalwetcon-crete-ejecting machinesdomesticdeveloped.Someflawsofconcrete-ejectingmachines areimproved. Keywords:concrete-ejectingmachines,framecharacteristic,operatingprinciples, highway. Concreteistheuseofcompressedairjet,willbeallocatedacertainlevelandgood water-cementratiomixingconcretematerials,throughthepipelinebythejetnozzle,and highspeedjetouttothesurfacebysprayingaconcretesuppor-tLayerissprayed concreteconstructionequipmentoperationsinthemain.Asaconcretespraying technologysavingconcreteandsteel,timber,labour-savingandimproveconstruction efficiencyandreducecosts,andothercharacteristics,theconcreteapplicanofthejet increasinglycommon.Hasnowbeenwidelyus-edinrailway,highway,water conservancy,construction,coalandotherbuildi-ngworksinconstruction,atunnel solution,roadslope,constructionpit,unde-rgroundworksoftemporaryandpermanent caretosupporttheconstructionm-achineryoperations. [1] 1Theworkofsprayedconcretemechanismandthedevelopmenttrend Insprayedconcreteoperations,theoverwhelmingmajorityoftheuseof concrete-rotoraircraft,suchasjetstructureissimple,reliableperformance,asmall, lightweight,easytooperateandmaintenanceDryjetprincipleandstructureare:the 。 rotorwithalinertoacertainspeedofrotation,andthecombinationofpressureplates fixedonthelinerfixed,withaboardconnectedintothewindpipeanddischarging elbow,whenRotorequippedwithmaterialsinthevariousmaterialsCuprotationandinto thewindtotheelbowanddischargingthesametime,intheroleofgasunderpressure, andmaterialsthroughtheelbowandexpectedtolosethematerialtransportedtothe nozzleandnozzleinthewaterBlastingaway. Dryconcretejetofthemainadvantagesisalongdistancecarrier,simple equipment,durable,butbecauseitissodrynozzles,mixingconcretemixedwithwater, andthereforetheconstructiondust,aremoreresilient,drysprayingoperationsagainst workersinthedustHealth,inparticularthenarrowroadwayconstruction,dustpollution ismoreserious[2] 。 Fromthe1960sonwards,inWesterndevelopedcountries,wetsprayingbegan graduallyintroducingthetechnology,allkindsofwetconcreteJetsalsobedeveloped, sprayedconcreteanddrythemaindifferenceisthatenough(inwater-cementratio requirementsshouldbeThevolumeof)theopportunitytojointhemixingofdifferent waterWetsprayedconcreteisexpectedlosetheiraccesstotheformerMixturehas 。 addedafootofwatermixing,theloserinthedeliveryofthecylinderisthewetconcrete; drysprayedconcreteislostinthetransmissionofthematerialdidnotjointhemixing Waterdrymaterial(groundhumiditymixingnaturalmaterialsordryingmaterials),and