Ngawaphi amanyathelo aneenkcukacha kunye nokuhamba kwenkqubo yesixhobo sebhitumene esifakelwe umgquba?
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Ngawaphi amanyathelo aneenkcukacha kunye nokuhamba kwenkqubo yesixhobo sebhitumene esifakelwe umgquba?
Ixesha lokukhupha:2023-10-11
Funda:
Yabelana:
Inkqubo yokuveliswa kwebhitumene efakwe ibhitumene inokwahlulwa ngokwezi nkqubo zine zilandelayo: ukulungiswa kwebhitumene, ukulungiswa kwesepha, ukufakwa kwebhitumene, kunye nokugcinwa kwe-emulsion. Ubushushu obufanelekileyo bokukhutshwa kwebhitumene kufuneka bube malunga nama-85°C.

Ngokutsho kokusetyenziswa kwe-bitumen e-emulsified, emva kokukhetha uphawu olufanelekileyo lwe-bitumen kunye neleyibhile, inkqubo yokulungiselela ibhitumene ikakhulu yinkqubo yokufudumeza i-bitumen kunye nokugcina kwiqondo lokushisa elifanelekileyo.

1. Ukulungiswa kwebhitumene
Ibhitumene lelona candelo libalulekileyo lebhitumene etyhidiweyo, ngokuqhelekileyo ibalelwa kuma-50% ukuya kuma-65% obunzima bubonke bebhitumene etyhidiweyo.

2.Ukulungiswa kwesisombululo sesepha
Ngokuhambelana nebhitumene efunekayo, khetha uhlobo olufanelekileyo lomyibilikisi kunye nethamo kunye nohlobo lokongeza kunye nedosi, kwaye ulungiselele isisombululo se-emulsifier yamanzi (isepha). Ngokuxhomekeke kwisixhobo se-bitumen e-emulsified kunye nohlobo lwe-emulsifier, inkqubo yokulungiswa kwesisombululo samanzi (isepha) ye-emulsifier nayo iyahluka.

3. Ukumiliselwa kwebhitumene
Beka umlinganiselo ofanelekileyo webhitumene kunye nolwelo lwesepha kwi-emulsifier kunye, kwaye ngeziphumo zoomatshini ezifana noxinzelelo, ukucheba, ukucola, njl. njl., ibhitumene iya kwenza amasuntswana afanayo, aya kuthi asasazwe ngokuzinzileyo nangokulinganayo kulwelo lwesepha ukuya. yenza iipokotho zamanzi. I-emulsion yebhitumene yeoli.
Ukulawula ubushushu ngexesha lenkqubo yokulungiselela ibhitumene kubaluleke kakhulu. Ukuba ubushushu bebhitumene buphantsi kakhulu, kuya kubangela ukuba i-bitumen ibe ne-viscosity ephezulu, ubunzima bokuhamba, kwaye ngaloo ndlela iingxaki ze-emulsification. Ukuba ubushushu be-bitumen buphezulu kakhulu, kuya kubangela ukuguga kwebhitumene kwelinye icala, kwaye kwakhona wenze i-bitumen emulsified ngexesha elifanayo. Iqondo lokushisa lokuphuma liphezulu kakhulu, elichaphazela ukuzinza kwe-emulsifier kunye nomgangatho we-bitumen emulsified.
Ubushushu besisombululo sesepha ngaphambi kokungena kwisixhobo sokufaka i-emulsification ngokuqhelekileyo silawulwa phakathi kwe-55-75 ° C. Amatanki amakhulu okugcina kufuneka axhotyiswe ngesixhobo esishukumisayo ukuze ashukume rhoqo. Ezinye ii-emulsifiers eziqinileyo kwiqondo lobushushu begumbi kufuneka zifudunyezwe kwaye zinyibilike ngaphambi kokulungisa isepha. Ngoko ke, ukulungiswa kwebhitumene kubalulekile.

4. Ukugcinwa kwebhitumene e-emulsified
Ibhitumene e-emulsified iphuma kwi-emulsifier kwaye ingena kwitanki yokugcina emva kokupholisa. Ezinye izisombululo ezinamanzi e-emulsifier zifuna ukongeza iasidi ukulungisa ixabiso le-pH, ngelixa ezinye (ezifana neetyuwa ze-quaternary ammonium) azenzi.

Ukucothisa ukucalulwa kwebhitumene e-emulsified. Xa ibhitumene etyhidiweyo itshizwa okanye ixutywa, ibhitumene efakwe emulsified iyakhutshwa, yaye emva kokuba amanzi ekuyo ephuphuma, eyona nto iseleyo endleleni yibhitumene. Kuba ngokuzenzekela ngokupheleleyo okuqhubekayo emulsified izixhobo zokuvelisa ibhitumene, icandelo ngalinye isepha (amanzi, acid, emulsifier, njl.) igqityezelwa ngokuzenzekelayo yinkqubo ebekwe isixhobo imveliso ngokwayo, okoko nje unikezelo impahla nganye kuqinisekiswa; Isixhobo sokuvelisa esiqhubekayo okanye esinethutyana sidinga ukulungiswa ngesandla kwesepha ngokweemfuno zefomula.