Diatomite, hu ua "cov khoom siv zoo kawg nkaus ntawm xwm", yog ib qho mineral ntuj. Nws yog tsim los ntawm cov pob zeb fossil ntawm diatom (ib qho algae luag nyav uas nyob hauv cov pas dej qub thiab dej hiav txwv ntiav) ntau lab xyoo. Diatomite yog siv dav hauv txhua qhov chaw ntawm lub neej thoob ntiaj teb vim nws cov laj thawj tshwj xeeb, uas muab nws nrog cov khoom zoo heev ntawm lub cev thiab tshuaj lom neeg.

1. Kev Tsim Diatomite: Kev Hloov Pauv Geological hauv Lab Xyoo

Diatoms yog cov kab mob me me uas muaj cov phab ntsa silica, uas nyuaj rau lwj. Thaum cov tsiaj no tuag, lawv cov plhaub diatom yuav poob rau hauv qab dej thiab tsim cov txheej tuab. Tom qab ntau pua xyoo ntawm kev rho tawm thiab kev ua kom muaj mineralization, cov txheej no tau hloov mus ua cov av diatomaceous yam tsis rhuav tshem lawv cov qauv porous. Kev tsim cov av no xav tau cov xwm txheej tshwj xeeb: lub pas dej me me, qhov chaw nplua nuj siliceous thiab lub cev dej ruaj khov, kom khaws cia lub plhaub silica ntawm diatoms.

Niaj hnub no, cov zaub mov diatomite zoo tau pom thoob plaws ntiaj teb, thiab qee qhov ntawm lawv yog qhov muag pom tshwj xeeb. Tuam Tshoj, Tebchaws Meskas thiab Tebchaws Europe txhua tus muaj cov chaw khaws cia zaub mov. Qhov huv si thiab cov qauv ntawm cov chaw khaws cia zaub mov no txawv, tab sis lawv txhua tus khaws cov yam ntxwv tseem ceeb ntawm cov qauv diatomite-porous.

2. Cov yam ntxwv tseem ceeb ntawm diatomite: Vim li cas nws thiaj tshwj xeeb?

Cov yam ntxwv tshwj xeeb ntawm diatomite los ntawm cov qauv fossil tsim los ntawm nws cov kab mob, uas ua rau nws txawv ntawm lwm cov khoom siv hluavtaws lossis cov khoom siv ntuj:

Cov qauv porous: Nws sab hauv muaj cov qhov hws nrog ntau qhov ntau thiab tsawg, xws li nano-scale mus rau micron-scale, thiab porosity ntau ntawm 60% txog 90%, uas ua rau diatomite muaj thaj chaw loj heev thiab tuaj yeem paub txog kev nqus thiab lim dej zoo.

Kev ruaj khov tshuaj lom neeg:Nws lub ntsiab tivthaiv yog amorphous silicon dioxide (SiO2), uas ruaj khov tshuaj lom neeg, tiv taus feem ntau cov kua qaub thiab cov hauv paus, tsis muaj tshuaj lom, tsis muaj saj thiab tus phooj ywg ib puag ncig.

Cov yam ntxwv ntawm lub cev:nws yog lub teeb thiab qis hauv qhov nyuaj, yooj yim rau kev ua tiav rau hauv hmoov lossis cov duab tshwj xeeb, thiab tsis tas yuav rhuav tshem nws cov qauv porous.

Kev tiv thaiv kub:Diatomite muaj qhov chaw yaj ntawm 1650-1750 ℃, uas muaj kev tiv thaiv cua sov zoo thiab ruaj khov txawm tias nyob rau hauv cov ntawv thov kub siab xws li kev rwb thaiv tsev kev lag luam.

Ua ke, cov yam ntxwv no ua rau diatomite yog cov khoom siv yooj ywm heev, uas kuj tseem tuaj yeem lim cov khoom me me thiab nqus cov pa phem, thiab kuj tseem tuaj yeem siv ua cov khoom sau kom txhim kho kev ua haujlwm ntawm cov khoom.

3. Kev siv tau: qhov zoo ntawm diatomite

Diatomite muaj ntau yam kev siv thiab tau dhau los ua cov khoom siv tseem ceeb rau ntau yam lag luam. Kev siv npog cov khoom siv niaj hnub, thev naus laus zis siab thiab lwm yam.

Kev lim dej hauv kev lag luam (siv dav tshaj plaws)

Ua ib qho kev pab lim dej ntuj, cov qauv porous ntawm diatomite tuaj yeem cuam tshuam cov khoom me me ntawm 0.1-1.0 microns los ntawm kev tshuaj ntsuam xyuas thiab electrostatic adsorption. Nws yog dav siv rau hauv:

Khoom noj thiab dej haus:ua kom meej cov npias, cawv txiv hmab, kua txiv hmab txiv ntoo thiab roj noj tau, thiab tshem tawm cov khoom tsis huv, poov xab thiab cov xim.

Kev kho dej:Ua kom cov dej haus, cov dej khib nyiab los ntawm kev lag luam thiab cov dej hauv pas dej ua ke huv si los ntawm kev tshem tawm cov kab mob, cov hlau hnyav thiab cov kuab paug organic.

kev tiv thaiv ib puag ncig

Diatomite muaj peev xwm nqus tau zoo, uas ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov ntaub ntawv tiv thaiv ib puag ncig.

Kev kho dej khib nyiab:kev nqus cov xim pleev, cov hlau hnyav (xws li cov hlau txhuas thiab zinc) thiab cov kuab paug organic hauv cov dej khib nyiab kev lag luam.

Kev ntxuav cua:siv rau hauv cov lim cua, cov ntaub ntawv phab ntsa thiab cov txheej txheem los ntes cov khoom tsis huv, hmoov av, formaldehyde thiab tsw ntxhiab thiab txhim kho huab cua hauv tsev.

Kev kho av:txhim kho av kom muaj pa thiab khaws dej, cov npoj yaig nqus cov pa phem thiab txhawb kev loj hlob zoo ntawm cov nroj tsuag.

Kev tsim vaj tsev thiab kev tsim kho

Diatomite yog ib yam khoom muaj nqis vim nws qhov hnyav thiab rwb thaiv tsev zoo heev.

Cov ntaub ntawv siv hauv tsev:cov ntaub ntawv phab ntsa (xws li cov av diatom) tswj cov av noo hauv tsev los ntawm kev nqus thiab tso cov av noo, thiab muab cov suab rwb thaiv tsev thiab kev tiv thaiv hluav taws tib lub sijhawm.

Cov khoom siv rwb thaiv tsev thermal: siv rau kev rwb thaiv tsev thermal ntawm cov khoom siv kev lag luam thiab cov tsev xws li cov cib rwb thaiv tsev thermal, cov kav dej thiab phab ntsa kom txo kev siv hluav taws xob.

Lwm yam lag luam

Cov khoom siv ua kom muaj zog: ntxiv rau xim, yas thiab roj hmab kom txhim kho lub zog, tiv taus kev hnav thiab ruaj khov.

Kev siv ua liaj ua teb: Nws tuaj yeem siv ua tshuaj tua kab ntuj (rhuav tshem cov kab tsuag sab nraud) thiab cov khoom noj khoom haus ntxiv rau kev zom zaub mov kom zoo.

Tus neeg nqa khoom catalyst: muab lub hauv paus ruaj khov rau cov tshuaj lom neeg, xws li kev ua roj av thiab kev tsim biodiesel.

4. Yuav ua li cas xaiv cov diatomite zoo

Tsis yog txhua lub ntiaj teb diatomaceous muaj tib yam zoo, tab sis nws qhov kev dawb huv, cov qauv thiab cov txheej txheem ua tiav txiav txim siab nws cov khoom.

Cov ntsiab lus ntawm silica (SiO2):kev huv siab (saum toj no 80%) yog qhov kev xaiv zoo tshaj plaws rau cov khoom noj thiab kev lag luam lim dej siab.

Cov qauv ntawm qhov hws:Kev faib tawm ntawm qhov loj me ntawm cov qhov hws sib xws tuaj yeem ua kom muaj kev lim dej tas mus li thiab kev nqus dej zoo.

Kev siv tshuab ua:Piv txwv li, calcination (kev kho kub siab) lossis ntxuav (kev tshem tawm cov khoom tsis huv) tuaj yeem txhim kho kev ua haujlwm ntawm cov khoom yam tsis ua rau puas tsuaj rau cov qauv porous.

Daim ntawv pov thawj ua raws li txoj cai:nrhiav cov neeg muab khoom txhim khu kev qha, xws li daim ntawv pov thawj zoo thiab kev nyab xeeb, daim ntawv pov thawj ROHS, thiab lwm yam.

Ua ib lub chaw tsim khoom ncaj qha, peb muab qhov tseem ceeb rau cov qauv no. Peb cov diatomite tau dhau qhov kev xeem zoo Confucius, thiab txhua pawg khoom yuav tsum tau kuaj xyuas cov ntsiab lus silicon dioxide, pore faib thiab cov hlau hnyav kom tau raws li kev thov thoob ntiaj teb.

5. Kev sib piv ntawm diatomite thiab lwm yam ntaub ntawv

Xuab zeb Quartz: Piv nrog xuab zeb quartz, diatomite muaj qhov tseeb ntawm kev lim dej siab dua, uas yog, tus nqi tsis lees paub, tuaj yeem lim cov khoom me me uas xuab zeb quartz tsis tuaj yeem lim tau, thiab xav tau hloov pauv tsawg dua.

Perlite:Txawm hais tias qhov ceev ntawm perlite ntws sai dua, diatomite muaj kev ua tau zoo dua hauv kev nqus cov pa phem organic, thiab lub ncuav mog qab zib lim dej ruaj khov dua, uas yog qhov tsim nyog rau cov xwm txheej thov pob tshab siab (xws li npias thiab lwm yam lag luam).

Qhov kev xaiv zoo nyob ntawm koj cov kev xav tau, tab sis diatomite tsis muaj qhov sib piv hauv cov haujlwm uas yuav tsum tau xav txog qhov tseeb, kev ruaj khov thiab kev ntseeg tau.

Xaus lus:Diatomite - qhov kev daws teeb meem ntawm xwm hauv cov teeb meem niaj hnub no.

Txij li kev ntxuav dej haus mus rau kev txhim kho kev ua haujlwm ntawm kev lag luam, diatomite qhov chaw ntuj thiab kev ua tau zoo heev ua rau nws yog cov khoom siv tseem ceeb hauv ntiaj teb.

Ua ib lub tuam txhab muag khoom uas muaj cov khoom siv hauv av ncaj qha, peb tuaj yeem muab cov kev daws teeb meem rau kev lim dej, kev tiv thaiv ib puag ncig, kev tsim kho thiab lwm yam. Cov phiaj xwm no tau dhau los ua kev sim thiab kev txheeb xyuas zoo, thiab ua raws li daim ntawv pov thawj thoob ntiaj teb.

Txawm koj tab tom nrhiav cov khoom siv lim dej rau cov khoom noj, cov ntaub ntawv tsim kho uas tsis ua rau ib puag ncig puas tsuaj lossis cov kev daws teeb meem adsorption hauv kev lag luam, peb pab neeg npaj txhij los muab kev pabcuam tus kheej rau koj thiab cov qauv dawb los pab koj nrhiav cov khoom diatomite zoo.