1. Cov nyhuv ntawm cov kev daws teeb meem siab lossis qis ntawm cov khoom lag luam thawj ntawm cov kua dej y thaum lub sijhawm ua kom qhuav. Thaum cov concentration ntawm kev daws teeb meem dhau lawm: qhuav los ua ib qho qauv txheej txheem txheej txheem txheej txheej saum npoo av txheej. Txheej saum npoo muaj cov hws me me thiab cov tsis zoo. Cov dej hauv sab hauv dhau mus los ntawm txheej saum npoo av, yog li nws nce mus rau lub raj mis phab ntsa, ua rau cov khoom tawm ntawm phab ntsa thiab ntsws. Tsis tas li ntawd, thaum cov kev xav tau yog qhov yooj yim heev, y kua yog yooj yim rau agglomerate thaum lub qhov cub kom qhuav, thiab cov khoom zoo ntawm cov tsos tsis xwm yeem. Thaum lub siab tsis tshua muaj zog: Cov qauv hluav taws xob muaj zog, thiab cov qauv khoom lag luam yog cov khoom siv tom qab ntim khoom thiab tsheb thauj khoom los ua cov hmoov, uas cuam tshuam rau cov khoom ntawm cov khoom
2. Lub thickness ntawm cov khoom yog tuab heev. Feem ntau, nws yuav tsum 10-15 hli. Qhov xwm txheej uas cov khoom lag luam yog cov tuab heev yog qhov zoo ib yam li ntawd thaum lub siab xav tau dhau. Nws tsis qhuav rau lub sijhawm ntev, thiab nws tau tsoo thiab agglomerates.
3. Qhov kub nce thiab ntog sai sai thiab nws yooj yim los ua rau cov khoom tawm ntawm phab ntsa thiab qeeb. Pre-te khov ua kom khov: cov khoom uas txias los ntawm {2}} kawm ntawv ib feeb yog hu ua nrawm los ntawm khov kho cov txheej txheem kom qhuav-kom khov kho kom khov. Feem ntau, thawj theem ntawm sublimation thiab ziab: qhov kub ntawm cov khoom yuav tsum tau txo kom 5-6 degree. Hauv qab no lub eutectic taw tes, qhov kub nce yuav tsum qeeb, nyiam ib teev, thiab 90% noo noo yuav tsum tau muab tshem tawm ntawm qhov kawg ntawm thawj-theem sublimation kom qhuav. Qhov thib ob-theem Sublimation thiab Drying: Qeb no feem ntau yog muab cov dej siv lead ua thiab cov dej adsorbed. Tus nqi cua sov tuaj yeem nrawm, nyiam dua} 10}} degree / h, tab sis qhov kub ntawm cov khoom yuav tsawg dua. Kev noj thiab cov tub rog tsis muaj zog
4. Txawj Ntse Ceev. Nyob rau hauv pem hauv ntej txee c, lub deflation yuav tsum tsis txhob nrawm, nws mam li hloov mus rau hauv lub thawv, ua rau cov khoom muag los ua cov nplaim taws lossis hmoov, uas cuam tshuam rau cov tsos.