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1、湿式混凝土喷射机的类型及发展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
