Tag nrho cov txheej txheem ntawm khov-qhuav yog qhov ua tau yog txheej txheem uas hloov pauv huab cua thiab huab cua (dej vapor) tau ua tib lub sijhawm. Lub tshav kub thiab huab hwm coj hloov pauv tau sib koom ua ke cuam tshuam rau qhov ziab kom qhuav, yog li cuam tshuam rau tag nrho lub voj voog kom qhuav. Txhua yam cuam tshuam rau cov cua sov thiab huab cua hloov pauv yuav cuam tshuam rau tus nqi ziab. Piv txwv li, cov ntsiab lus tseem ceeb cuam tshuam rau cov cua sov thiab huab cua hloov pauv yog:
1. Daim ntawv thiab muaj pes tsawg leeg ntawm cov ntaub ntawv
Raws li daim ntawv ntawm cov khoom khov-qhuav, lawv feem ntau muab faib ua cov khoom thiab ua kua. Cov duab ntawm cov khoom thiab cov concentration ntawm cov kua muaj kev cuam tshuam zoo rau qhov khov-drying tus nqi.
2. Ua ntej khov tus nqi
Cov siv lead ua loj tsim thaum lub sij hawm khov heev cuam tshuam rau qhov ziab thiab qhov tawg ntawm cov khoom qhuav. Muaj qhov sib txawv hauv qab no ntawm kev khov sai thiab khov qeeb: cov dej khov nab kuab uas tsim los ntawm kev khov sai yog me dua thiab cov uas ua los ntawm qhov khov qeeb yog loj dua. Cov dej khov loj loj yog qhov zoo rau sublimation, thaum cov dej khov me me tsis haum rau sublimation. Kev khov sai sai ua rau qis sublimation tus nqi thiab ceev desorption tus nqi; Kev khov qeeb qeeb ua rau kom ceev sublimation tus nqi thiab kev daws teeb meem qeeb.
3. Chaw thau khoom muaj peev xwm
Thaum cov ntaub ntawv khov-qhuav, muaj qee qhov sib piv ntawm thaj chaw saum npoo thiab cov khoom tuab tom qab kev thauj khoom mus rau hauv ntim, uas yog, khov-qhuav yog cuam tshuam nrog kev thauj khoom. Qhov chaw me me thiab tuab yog qhov tsim nyog rau cov dej noo sublimation, yooj yim khov-drying thiab zoo tagnrho zoo. Thaum lub sij hawm ziab, qhov qhuav ntub qhov hnyav thauj khoom ntawm cov khoom siv hauv ib cheeb tsam yog qhov tseem ceeb uas txiav txim siab lub sij hawm ziab. Feem ntau, lub thinner cov khoom stacking thickness, qhov ceev ntawm tshav kub thiab huab hwm coj hloov ceev, thiab lub sij hawm qhuav qhuav. Txawm li cas los xij, yog tias cov khoom tuab tuab, muaj cov ntaub ntawv tsawg dua qhuav hauv txhua pawg ntawm ib chav tsev khov-qhuav qhov chaw, uas tsis zoo rau kev txhim kho cov khoom tso tawm rau ib chav tsev khov-qhuav qhov chaw thiab chav tsev lub sijhawm.
4. Siab nyob rau hauv qhuav chamber
Lub siab nyob rau hauv lub drying chamber cuam tshuam tus nqi ntawm tshav kub thiab huab hwm coj hloov. Nyob rau hauv cov nqe lus ntawm huab hwm coj hloov, qhov qis dua qhov siab, qhov zoo dua, thaum nyob rau hauv cov nqe lus ntawm kev hloov cua sov, qhov siab dua, qhov zoo dua. Qhov loj hloov pauv tus nqi yog txiav txim siab los ntawm qhov kub thiab siab ntawm sublimation interface thiab saum npoo ntawm txheej ziab. Txhawm rau txhim kho qhov khiav tawm ntawm cov dej vapor hauv txheej ziab, ua ntej, nce qhov kub ntawm sublimation interface thiab ua kom cov dej vapor siab ntawm lub interface; Qhov thib ob yog los txhim kho lub tshuab nqus tsev kawm ntawv ntawm lub tshuab ziab khaub ncaws thiab txo cov chav siab ntawm qhov chaw ziab khaub ncaws.
5. Thaum tshav kub kub hloov hom
Raws li kev faib tawm ib txwm muaj, nws tuaj yeem muab faib ua conduction, convection, thermal tawg thiab nruab nrab cua sov (microwave cua sov). Vim tias cov txheej txheem sublimation ziab yuav cuam tshuam rau kev hloov pauv ntawm tshav kub thiab huab hwm coj (dej vapor), txoj hauv kev ntawm cov cua sov hloov mus rau cov ntaub ntawv zoo dua muaj kev cuam tshuam zoo rau kev ziab.
