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1、濕式混凝土噴射機(jī)的類型及發(fā)展Typesanddevelopmentofwetconcretesprayer5-18Thispaperintroducesthetypesanddevelopmentprocessofwetwetsoiljet?Domesticandinternationalusageandmainadvantagesanddisadvantages?Theworkingprincipleofvariouskindsofwetconcretejetmachinesinforeigncountriesisemphaticallyintroduced.Inaddition,sev
2、eraltypicalwetconcretejetsdevelopedanddevelopedinChinainrecentyearsarealsointroduced.Keywords:wetconcretesprayer;type;principle;developmentConcretejetisakindofconstructionequipmentwidelyusedinundergroundengineering,geotechnicalengineering,municipalengineeringandotherfields?Itistheuseofcompressedai
3、rorotherpowerwill,accordingtoacertainproportionofmixturebypipelineandjettobesprayedonthesurfacehardening,thusformingaconcretesupportinglayer,inrecentyears,thejetwetconcretesupportinglayer,inrecentyears,injectiontechnologyofconcretetechnologywithitssimple,uniqueeffectofeconomiccostandawiderangeofus
4、es,exuberantvitalityinvariousconstructionareas?1developmentofwetconcretesprayerathomeandabroadInforeigncountries,Tuashalioua(ALIVA)Companyin1992developedadryrotorsprayingmachine?In1947,thefederalCorporationBSMdevelopedatwotankdryconcretejet?Later,Britain,theformerSovietUnion,Japan,andsoonhavedevel
5、opedavarietyofdryconcretejet?Chinabegantodevelopconcretesprayingequipmentsince60s?Hasdevelopedametallurgicalconstruction-65(MetallurgicalIndustryConstructionResearchInstitute),PH30-74(Yangzhoumachineryplant),HLP-701(CoalScienceResearchInstitute)andotherdryconcreteshotcretemachine?Themainadvantages
6、ofdryconcreteshotcretearelongconveyingdistance,simpleequipmentanddurability?Butbecauseitmixesthedrymixingconcretenozzlewiththewater,theconstructiondustandthereboundareallbigger,andthedustproducedbythedrysprayingoperationisharmfultothehealthoftheworkers,especiallyinthesmallwindowroadwayproject?Dust
7、pollutionismoreserious?acceleratorisformedafterthematerialinjectedintotheconstruct!onface?From60sonwards,inthewesterndevelopedcountries,wettechnologygraduallystarted,allkindsofwetflowerhavedevelopedtheso-calledwe
