xov xwm

Cov yam ntxwv ntawm microstructure ntawm diatomite

Cov tshuaj muaj pes tsawg leeg ntawm lub ntiaj teb diatomaceous feem ntau yog SiO2, tab sis nws cov qauv yog amorphous, uas yog, amorphous. Qhov no amorphous SiO2 tseem hu ua opal. Qhov tseeb, nws yog cov dej uas muaj amorphous colloidal SiO2, uas tuaj yeem qhia tau tias yog SiO2⋅nH2O. Vim muaj qhov sib txawv ntawm thaj chaw tsim khoom, cov ntsiab lus dej sib txawv; microstructure ntawm cov qauv diatomite feem ntau muaj feem xyuam rau cov hom ntawm cov diatoms deposited. Vim hais tias ntawm ntau hom diatoms, lub microscopic qauv ntawm cov tsim diatomite ore muaj qhov pom tseeb sib txawv ntawm cov qauv, yog li muaj qhov sib txawv ntawm kev ua haujlwm. Cov nram qab no yog ib qho diatomite deposits uas yog tsim los ntawm terrestrial deposits nyob rau hauv ib qho chaw nyob rau hauv peb lub teb chaws uas peb tau kawm, thiab cov diatoms mas yog linear.

Kev siv diatomite

Vim muaj qhov tshwj xeeb microstructure ntawm diatomite, nws muaj ntau yam kev siv hauv ntau qhov chaw xws li cov khoom siv hauv tsev, tshuaj, kev ua liaj ua teb, kev tiv thaiv ib puag ncig, khoom noj khoom haus, thiab kev siv tshuab siab. Hauv Nyij Pooj, 21% ntawm lub ntiaj teb diatomaceous yog siv hauv kev lag luam khoom siv hauv tsev, 11% yog siv rau hauv cov ntaub ntawv refractory, thiab 33% yog siv hauv cov nqa khoom thiab cov khoom ntim. Tam sim no, Nyiv tau ua tiav cov txiaj ntsig zoo hauv kev txhim kho thiab siv cov khoom siv hauv tsev tshiab.

Hauv kev xaus, cov kev siv tseem ceeb ntawm diatomite yog:

(1) Siv nws cov qauv microporous los npaj ntau yam khoom siv lim dej thiab kev txhawb nqa catalyst. Qhov no yog ib qho tseem ceeb ntawm kev siv lub ntiaj teb diatomaceous. Nws ua rau kev siv tag nrho ntawm microstructure yam ntxwv ntawm lub ntiaj teb diatomaceous. Txawm li cas los xij, lub ntiaj teb diatomaceous ore siv los ua lim dej yog qhov zoo dua nyob hauv corinosites, thiab lub ntiaj teb diatomaceous ore nrog cov kab tawm algae raws li cov cab kuj yog qhov zoo dua vim tias cov kab algae muaj qhov loj hauv sab hauv.

(2) Kev npaj ntawm kev txuag hluav taws xob thiab cov khoom siv refractory. Ntawm cov ntaub ntawv thermal rwb thaiv tsev hauv qab 900 ° C, diatomite thermal rwb thaiv tsev refractory cib yog qhov kev xaiv zoo tshaj plaws, uas kuj yog ib qho ntawm cov ntawv thov tseem ceeb ntawm diatomite mines hauv kuv lub tebchaws.

(3) Diatomaceous ntiaj teb tuaj yeem siv los ua lub hauv paus tseem ceeb ntawm SiO2 active. Txij li SiO2 nyob rau hauv diatomaceous ntiaj teb yog amorphous, nws muaj siab reactivity. Piv txwv li, nws yog qhov zoo tshaj plaws los siv nws los cuam tshuam nrog calcareous raw khoom los npaj calcium silicate board fireproof cov ntaub ntawv. Tau kawg, qee qhov impurities yuav tsum tau muab tshem tawm los ntawm qib qis diatomite ore.

(4) Siv nws cov microporous adsorption yam ntxwv los npaj cov tshuaj tua kab mob thiab tshuaj tua kab mob. Qhov no kuj yog ib qho ntawm cov kev siv tseem ceeb tshiab ntawm diatomite, uas yog cov khoom siv ua haujlwm nrog cov teebmeem ecological. Qhov ntev ntawm cov bacillus feem ntau yog 1-5um, txoj kab uas hla ntawm cocci yog 0.5-2um, thiab qhov pore loj ntawm diatomaceous lub ntiaj teb yog 0.5um, yog li cov lim dej ua los ntawm diatomaceous lub ntiaj teb tuaj yeem tshem tawm cov kab mob, yog tias nws txuas nrog lub ntiaj teb diatomaceous lim cov tshuaj tiv thaiv kab mob thiab cov kab mob photosensitizers muaj peev xwm ua kom cov kab mob zoo dua. thiab ntxiv rau lwm cov ntaub ntawv kom ua tiav lub hom phiaj ntawm kev tso tawm qeeb thiab muaj kev cuam tshuam ntev. Tam sim no, tib neeg tuaj yeem siv cov cuab yeej siv high-tech los npaj diatomaceous earth-type anti-mildew thiab antibacterial functional materials with diatomaceous earth as a carrier.