Cov txheej txheem ntau lawm suav nrog: Cua sov kub ntawm bitumen thiab xab npum daws, thiab tswj hwm ntawm tus nqi txaus ntawm txhua tus raj xa dej.
(1) Cua sov kub ntawm bitumen thiab xab npum daws
Bitumen yuav tsum muaj qhov kub siab kom ua tiav lub xeev txaus. Qhov kev sib cais ntawm emulsifier hauv dej, nce emulsifier syap kev ua haujlwm, thiab txo cov dej-bitumen interfacial nro yuav tsum tau cov xab npum daws tau qhov kub thiab txias. Nyob rau tib lub sijhawm, qhov kub ntawm emulsified bitumen tom qab kev tsim khoom tsis tuaj yeem ua tsis tau ntau tshaj 100 ℃, txwv tsis pub nws yuav ua rau cov dej npau npau. Siv cov xwm txheej no rau kev txiav txim siab, cov bitumen cua sov kub yog xaiv 120 ~ 145 ℃, thiab cov kua nplaum tawm hluav taws xob qhov hluav taws xob kub tsis siab tshaj 85 ℃.
(2) Kho cov xab npum daws PHU
Cov emulsifier nws tus kheej muaj ib co acidity thiab alkalinity vim nws cov qauv tshuaj. Ion pulsfiers yaj nyob rau hauv dej los ua cov xab npum tov. Tus nqi PHEEJ Cov nqi cuam tshuam rau kev ua haujlwm ntawm emulsifier. Kho kom haum rau tus nqi pH tsim nyog txhim kho kev ua haujlwm ntawm xab npum daws. Qee qhov emulsifievifiers tsis tuaj yeem yaj tsis tau hloov kho tus nqi ntawm cov kua tshuaj. Acidity Eridity tau txhim kho cov kev ua si ntawm cationic emulsifiers, alkalinity txhim kho cov kev ua ntawm anionic emulsifiers, thiab kev ua ntawm cov tsis muaj emulsifiers tsis muaj dab tsi ua nrog tus nqi PH. Thaum siv emulsifiers, tus nqi p p tus nqi yuav tsum tau hloov kho raws li cov lus qhia tshwj xeeb. Cov kua qaub uas nquag siv cov kua qaub thiab alkalis yog: hydrochloric acid, nitric acid, nitric acid, sodium hydroxide, soda tshauv, thiab dej iav.
(3) Kev tswj ntawm cov raj xa dej ntws
Lub raj xa dej ntws ntawm bitumen thiab xab npum txiav txim siab cov ntsiab lus bitumen hauv cov khoom emulsified bitumen. Tom qab cov khoom emulsification yog tsau, feem ntim tau yog qhov pib tas. Kev khiav ntawm txhua tus raj xa dej yuav tsum tau suav thiab kho raws li hom emulsified bitumen tsim tawm. Nws yuav tsum raug sau tseg tias cov lej ntawm kev ntws ntawm txhua qhov raj xa dej yuav tsum muaj sib npaug nrog lub zog emulsified.