Cov kauj ruam ntawm kev tsim cov khoom siv alumina
Jan 13, 2022
Activated alumina pob yog cov khoom ua los ntawm activated alumina tom qab kev kho tshwj xeeb. Hauv kev siv, nws muaj cov khoom tsis muaj tshuaj lom, tsis muaj ntxhiab, tsis muaj pulverizing, muaj zog nqus dej, thiab insoluble hauv dej. Yog li cas nws tuaj yeem tsim tau? Nws cov kauj ruam ntau lawm tuaj yeem muab faib ua cov kauj ruam hauv qab no:
1. Kev ziab: Cov khoom siv raw muaj 7 feem pua -8 feem pua ntawm cov dej noo, thiab cov khoom sib txuas yog evaporated los ntawm kev nce qhov kub ntawm 150-200 degree .
2. Crushing: Cov khoom siv qhuav qhuav nkag mus rau hauv lub tshuab zeb los tsoo cov ntaub ntawv. Lub crushing particle loj tuaj yeem hloov kho raws li qhov xav tau ntau lawm. Feem ntau, qhov loj me me ntawm cov khoom siv alumina yog tswj ntawm 325 meshes thiab 500 meshes.
3. Lub cev qhuav dej sai: Lub cev qhuav dej sai sai los ntawm kev ncua kev ci thiab ua kom txias sai. Lub sijhawm nyob ntawm cov khoom siv raw hauv cov cuab yeej siv luv luv, thiab cov hmoov tau los kuj yog hu ua "cov hmoov tshem tawm sai", thiab daim ntawv siv lead ua yog "ρ alumina". Qhov kub ntawm lub qhov cub tawg sai sai yog 800-900 degree, thiab qhov hluav taws xob kub ntawm qhov cub yog 410-460 degree .
4. Kev ua pob: Cov txheej txheem no yog qhov tseem ceeb hauv kev tsim khoom. Hauv cov txheej txheem ua pob, qhov loj me, qhov ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntu tuaj yeem tswj tau. Cov txheej txheem ua pob tau txais lub disc los ua ib lub pob, thiab ntxiv cov khoom ntxiv xws li: ammonium bicarbonate, sodium carbonate, thiab lwm yam.
5. Ua kom roasting: nkag mus rau cov txheej txheem ua kom tiav tom qab lub pob ua tiav, thiab tom qab ntawd siv qhov kub siab 90-100 degree chav rau hydrate rau 4-6 teev tom qab ua kom cov pellet. Tom qab ntawd nkag mus rau hauv lub qhov cub kom ua tiav cov txheej txheem roasting, roasting kub yog 400-450 degree , thiab lub sij hawm ci yog 40-45 feeb.
Hauv kev tsim cov khoom siv alumina, peb yuav tsum tau them sai sai rau kev tswj qhov kub thiab txias ntawm txhua theem ntawm kev tsim khoom, uas yog qhov tseem ceeb heev rau kev ua tau zoo thiab kev ua haujlwm ntawm cov khoom tiav.
