Diatomite yog dab tsi?

Diatomite yog pob zeb sedimentary siliceous biogenic feem ntau yog tsim los ntawm cov pob zeb fossilized ntawm cov diatoms thaum ub, muaj cov khoom xws li porosity siab, adsorption, thiab filtration. Lub ntsiab tivthaiv ntawm diatomite yog amorphous silicon dioxide (SiO₂), feem ntau suav txog ntau dua 80% thiab ncav cuag txog 94%, thaum tseem muaj cov khoom tsis huv me me xws li Al₂O₃, Fe₂O₃, CaO, MgO, thiab cov organic matter. Diatomite cov khoom siv lub cev thiab tshuaj lom neeg tshwj xeeb tau ua rau nws yog cov khoom siv tseem ceeb hauv ntau yam lag luam thoob ntiaj teb, nrog rau kev siv thoob plaws hauv lub neej txhua hnub, kev tsim khoom hauv kev lag luam, thiab kev tiv thaiv ib puag ncig.

1. Kev Tsim Diatomite: Ib qho txuj ci tseem ceeb ntawm geological uas tau tsim los ntawm Lub Neej thiab Lub Sijhawm Thaum Ub

Lub ntsiab lus tseem ceeb ntawm diatomite yog cov phab ntsa siliceous (frustules) ntawm cov diatoms thaum ub - cov algae me me uas nyob hauv dej hiav txwv, pas dej, thiab lwm yam dej. Thaum lub sijhawm lawv lub neej, cov kab mob no tau rho tawm cov silica yaj los ntawm dej los tsim lawv cov phab ntsa cell uas muaj qhov sib txawv thiab muaj qhov sib txawv. Thaum diatoms tuag, lawv cov pob txha silica tau nyob hauv qab ntawm cov dej, sib sau ua ke ntau heev. Nyob rau hauv qhov kub thiab txias, siab, thiab cov xwm txheej geological ntau lab xyoo, cov chaw no tau dhau los ua compaction thiab diagenesis, hloov mus ua pob zeb mos, zoo li chalk uas peb hu ua diatomite. Thaum lub sijhawm no, cov qauv porous ntawm diatom frustules tau khaws cia, yog li tso lub hauv paus rau diatomite cov yam ntxwv tshwj xeeb.

Niaj hnub no, cov chaw tso diatomite zoo tau muab faib thoob ntiaj teb. Cov chaw tsim khoom loj suav nrog Tebchaws Meskas, Tuam Tshoj, Denmark, Nyiv Pooj, Fabkis, thiab Mexico. Tuam Tshoj yog qib thib ob hauv ntiaj teb hauv cov chaw khaws diatomite, nrog rau cov chaw tso loj nyob hauv Northeast China (Jilin Changbai Mountain), Xinle (Hebei), thaj chaw sab hnub tuaj, Panxi (Sichuan), thiab sab hnub tuaj thiab sab qab teb sab hnub poob Yunnan. Cov chaw tso no sib txawv hauv cov khoom siv hauv av thiab cov txheej txheem ua tiav (faib ua grey raw diatomite, daj calcined diatomite, thiab dawb flux-calcined diatomite), tab sis lawv txhua tus khaws cov yam ntxwv tseem ceeb ntawm diatomite - porosity zoo heev thiab muaj peev xwm adsorption los ntawm cov qauv nyuaj ntawm cov fossilized diatoms.

2. Cov Khoom Tseem Ceeb ntawm Diatomite: Vim li cas nws thiaj zoo kawg li?

Qhov kev ua tau zoo tshaj plaws ntawm diatomite yog los ntawm cov qauv microstructure thiab cov tshuaj lom neeg ntawm cov pob zeb fossilized.

Porosity siab thiab thaj chaw lojDiatomite muaj cov qauv porous nyuaj nrog porosity ncav cuag txog li 90%, muab thaj chaw loj heev. Qhov no ua rau muaj peev xwm nqus tau zoo thiab ua haujlwm lim dej zoo rau kev tshem tawm cov khoom me me thiab cov khoom tsis huv.

Muaj Peev Xwm AdsorptionCov qauv me me ntawm diatom frustules tsim ntau cov channel me me uas tuaj yeem nqus cov kua, cov pa roj, cov organic, thiab cov khoom seem, thaum tseem khaws cov dej noo thiab cov as-ham zoo.

Kev Ruaj Ntseg TshuajDiatomite ruaj khov hauv tshuaj lom neeg, tiv taus cov kua qaub (tshwj tsis yog hydrofluoric acid), tsis muaj tshuaj lom, tsis muaj ntxhiab, thiab zoo rau ib puag ncig. Nws tsis yooj yim cuam tshuam nrog feem ntau cov tshuaj, ua kom muaj kev nyab xeeb thiab kev ntseeg tau hauv ntau yam kev siv suav nrog zaub mov thiab tshuaj.

Kev Rwb Thaiv Kub thiab Kev Kub NtxhovDiatomite yog lub teeb heev (qhov ceev ntawm cov khoom yog 0.3-0.5 g/cm³) nrog rau kev ua kom sov tsawg, ua rau nws yog cov khoom siv rwb thaiv tsev zoo heev rau kev siv kub siab.

Kev nkag tau thiab kev lim dej: Qhov sib npaug ntawm qhov loj me ntawm cov qhov tso zis tso cai rau kev tswj hwm kev lim dej kom meej, nrog rau ntau qib (300 # txog 1000 #) muaj rau ntau yam kev xav tau lim dej los ntawm ntxhib mus rau zoo.

Kev Tiv Thaiv Kev Sib TxhuamTxawm hais tias nws lub teeb yuag, diatomite muaj qhov nyuaj nruab nrab uas tsim nyog rau kev siv polishing yam tsis khawb qhov chaw.

Cov khoom no ua haujlwm ua ke, ua rau diatomite yog cov khoom siv dav dav. Nws tuaj yeem siv ua cov khoom pab lim dej, cov khoom nqus dej, cov khoom sau, cov khoom nqa, lossis cov khoom rwb thaiv tsev kom tau raws li ntau yam kev xav tau ntawm ntau yam kev lag luam.

Diatomite muaj ntau daim ntawv thov thiab tau koom ua ke tob rau txhua qhov chaw ntawm lub teb chaws kev lag luam, ua lub luag haujlwm tseem ceeb hauv kev lag luam, kev tiv thaiv ib puag ncig, thiab tib neeg txoj kev ua neej.

3. Kev Siv Diatomite Ntau Yam

3.1 Kev Lim thiab Kev Sib Cais (Cov Ntawv Thov Tseem Ceeb)

Diatomite qhov porosity zoo heev, permeability, thiab adsorption cov yam ntxwv ua rau nws yog cov khoom siv lim dej zoo tagnrho:

Kev lim dej zaub mov thiab dej hausSiv dav hauv npias, cawv txiv hmab, kua txiv hmab txiv ntoo, roj noj tau, thiab kua qab zib kom huv. Rau kev tsim npias, diatomite tshem tawm cov poov xab, cov protein, thiab lwm yam tsis huv, ua kom pom tseeb thiab saj huv.

Kev lim dej ua kua hauv kev lag luam: Tseem ceeb rau kev lim cov roj nplua nyeem, cov roj hydraulic, thiab cov tshuaj electroplating, tshem tawm cov khoom siv tsis huv thiab cov colloids kom ntev lub neej ntawm cov khoom siv thiab xyuas kom meej tias cov khoom zoo.

Kev Kho DejSiv rau hauv dej haus thiab dej khib nyiab kom tshem tawm cov av qias, cov organic matter, thiab cov hlau hnyav, txo qhov turbidity thiab txhim kho cov dej zoo.

3.2 Kev Tiv Thaiv Ib Puag Ncig thiab Kev Ua Kom Huv Si

Diatomite lub peev xwm adsorption muaj zog ua rau nws yog cov khoom siv zoo rau ib puag ncig:

Kev Ntxuav CuaSiv rau hauv cov tshuab lim cua thiab ua cov khoom ntxiv rau hauv cov txheej txheem sab hauv phab ntsa (diatom av nkos), nws nqus cov formaldehyde thiab lwm yam pa phem thaum tswj cov av noo los ntawm nws cov nyhuv "ua pa" - nqus cov av noo thaum noo thiab tso nws tawm thaum qhuav.

Kev Kho Mob Roj Pov TsegNqus cov pa phem xws li hydrogen sulfide los ntawm cov pa phem hauv kev lag luam thiab siv tau rau hauv cov tshuab ntxuav pa phem hauv tsheb.

Kev Ntxuav Roj thiab Tshuaj LomNws lub peev xwm nqus roj ntau ua rau nws zoo rau kev ntxuav cov roj nchuav thiab cov tshuaj xau.

3.3 Cov Khoom Siv Hauv Tsev thiab Kev Tsim Kho

Nrog nws cov txiaj ntsig tseem ceeb ntawm kev sib dua, kev rwb thaiv cua sov, thiab kev tiv thaiv hluav taws, nws muaj txiaj ntsig zoo hauv kev tsim kho:

Cov Khoom Siv Rwb Thaiv Kub: Tsim ua cov diatomite rwb thaiv tsev cib, cov laug cam, thiab cov kav dej rau kev tsim phab ntsa thiab cov khoom siv hauv kev lag luam, muab kev khaws cia cua sov zoo heev vim muaj kev ua tau zoo thermal qis.

Cov txheej txheem diatom av nkos: Ib txheej txheej sab hauv phab ntsa nrov uas nqus tau formaldehyde, tswj cov av noo, tiv thaiv pwm, thiab tiv thaiv hluav taws, tsim kom muaj chaw nyob zoo dua.

Pob zeb sib zog: Ntxiv rau cov qauv pob zeb kom txo qhov hnyav ntawm lub tsev thaum txhim kho cov khoom rwb thaiv tsev kub thiab suab.

Cov Khoom Siv Ua Liaj Ua TebCov hmoov av xim beige (1-3 hli, 3-6 hli, 6-9 hli) siv rau kev cog qoob loo, txhim kho kev ua kom av noo thiab khaws dej.

3.4 Kev Ua Liaj Ua Teb thiab Kev Yug Tsiaj

Vim nws muaj zog adsorption thiab tsis muaj tshuaj lom, nws yog dav siv hauv kev ua liaj ua teb thiab kev yug tsiaj:

Kev Hloov Kho Av: Ntxiv rau cov av av nplaum kom cua nkag tau zoo thiab ntws dej tau zoo; ua kom cov dej thiab cov as-ham khaws cia tau zoo hauv cov av xuab zeb, txhawb kom cov cag loj hlob zoo thiab qoob loo loj hlob.

Cov Tshuaj Tua Kab thiab Cov Tshuaj Chiv: Ua haujlwm ua tus nqa cov tshuaj tua kab, tshuaj tua kab mob fungicides, thiab chiv, ua rau tswj tau cov khoom xyaw nquag thiab txhim kho kev siv tau zoo.

Khoom Noj Khoom HausNtxiv rau cov khoom noj qaib thiab cov khoom noj ua liaj ua teb kom nqus tau cov mycotoxins, txhawb kev zom zaub mov los ntawm nws cov qauv porous, thiab txhim kho kev noj qab haus huv ntawm cov tsiaj.

Cov Ntawv Siv Tshuaj Tua KabSiv ncaj qha ua tshuaj tua kab lossis siv rau hauv cov tshuaj tua yoov tshaj cum thiab cov tshuaj pleev noob, nrog rau 325 mesh dawb lossis grey qib zoo tshaj plaws.

3.5 Lwm Yam Lag Luam

Roj Hmab thiab Yas Filler: Siv rau hauv cov log tsheb, cov khoom siv roj hmab, thiab cov yas kom txhim kho lub zog, tiv taus kev sib txhuam, thiab tiv taus kub thaum txo cov nqi tsim khoom.

Kev Tsim Ntawv: Siv ua cov khoom siv sau thiab txheej kom txhim kho daim ntawv dawb, du, thiab nqus cov kua mem, txo kev siv cov pulp.

Kev txhuam thiab cov khoom siv txhuamNws cov khoom me me, nruab nrab-hardness ua rau cov hmoov txhuam zoo heev rau cov hlau, iav, thiab pob zeb.

Tshuaj pleev ib ce thiab kev saib xyuas tus kheej: Ntxiv rau cov ntaub npog ntsej muag, cov tshuaj ntxuav ntsej muag, thiab cov khoom siv exfoliating kom nqus cov roj ntau dhau, tshem tawm cov av qias neeg, thiab tshem tawm cov hlwb tuag.

Tus Neeg Nqa Khoom Catalyst: Nws cov tshuaj lom neeg ruaj khov thiab thaj chaw loj ua rau nws yog qhov kev txhawb nqa zoo tshaj plaws rau cov catalysts hauv cov txheej txheem tshuaj lom neeg.

4. Yuav ua li cas xaiv cov diatomite zoo?

Qhov zoo ntawm diatomite txawv ntau heev. Nws cov kev ua tau zoo nyob ntawm cov cim tseem ceeb xws li keeb kwm, txoj kev ua tiav, thiab qhov loj ntawm cov khoom me me. Cov hauv qab no yuav tsum tau xav txog thaum xaiv diatomite:

Txoj Kev Ua Haujlwm: Flux-calcined dawb diatomite (qhov huv tshaj plaws, 78-85 dawb) yog qhov tsim nyog rau cov khoom noj, tshuaj, thiab cov ntawv thov zoo nkauj. Diatomite daj calcined muaj kev ua tau zoo rau kev lim dej dav dav thiab kev kho av. Grey raw diatomite (tsis calcined) yog qhov zoo tagnrho rau kev ua liaj ua teb thiab kev tsim kho uas xav tau cov khoom ntuj.

Qib PermeabilityRau cov ntawv thov lim dej, xaiv cov lej permeability tsim nyog—325 mesh rau kev lim dej zoo (pas dej ua luam dej, dej haus), 500# rau kev lim roj dav dav (feem ntau siv), 700#-1000# rau cov kua dej khov (kua txiv hmab txiv ntoo, cov tshuaj lom neeg), thiab 300# rau kev kho dej phwj tuaj.

Qhov Loj ntawm Cov Khoom Me MeCov khoom me me (325 mesh, 600 mesh) muab thaj chaw loj dua rau kev siv cov xim pleev thiab roj hmab. Cov qib ntxhib (20-60 mesh, 100 mesh) yog qhov tsim nyog rau cov khoom siv abrasives, xuab zeb ntxuav tes, thiab cov khoom siv ua liaj ua teb.

Kev Huv Si thiab Xim: Qhov dawb dua qhia tau tias muaj kev huv dua thiab kev ua tau zoo dua. Cov khoom noj khoom haus yuav tsum ua tau raws li GB 14936-2012 tus qauv; cov ntawv thov kev lag luam ua raws li GB / T24265-2014.

Cov Khoom Siv Lub CevCov khoom zoo yuav tsum tsis hnyav (kwv yees li 2.5 cubic meters ib tuj rau cov qib txheem), mos, thiab tsis muaj cov khoom qias neeg lossis cov xim dub ntau dhau.

Daim Ntawv Pov Thawj Ua Raws CaiXaiv cov neeg muag khoom uas muaj daim ntawv pov thawj ISO9001 lossis lwm daim ntawv pov thawj ntawm lub kaw lus; cov khoom noj khoom haus/tshuaj yuav tsum muaj daim ntawv pov thawj kev nyab xeeb, thiab cov khoom xa tawm yuav tsum ua raws li cov qauv thoob ntiaj teb xws li RoHS thiab REACH.

5. Kev Sib Piv ntawm Diatomite nrog Lwm Cov Khoom Siv Zoo Sib Xws

Diatomite, bentonite, perlite, thiab activated carbon txhua tus muaj lawv tus kheej lub zog thiab daim ntawv thov: Bentonite muaj qhov zoo heev o thiab cation pauv peev xwm, ua rau nws tsim nyog dua rau kev khawb av nkos thiab kev siv dej tsis nkag, tab sis nws tsis muaj cov qauv pore meej thiab cov yam ntxwv sib dua ntawm diatomite; Perlite muaj kev rwb thaiv tsev zoo thiab cov khoom sib dua, thaum diatomite muaj qhov zoo hauv kev lim dej meej, muaj peev xwm adsorption, thiab kev ruaj khov tshuaj lom neeg, ua rau nws ua haujlwm zoo dua li perlite hauv kev lim dej zaub mov thiab dej haus thiab kev lim cua; Activated carbon muab kev nqus zoo dua rau cov organic sib xyaw thiab ntxhiab tsw, tab sis diatomite muaj kev lim dej zoo dua, tus nqi qis dua, thiab cov khoom rwb thaiv tsev thermal, ua rau nws tsim nyog dua rau kev lim dej loj thiab cov ntaub ntawv tsim kho. Kev xaiv cov khoom siv nyob ntawm cov kev xav tau tshwj xeeb; hauv cov ntawv thov uas xav tau porosity siab, kev lim dej meej, kev rwb thaiv tsev sib dua, thiab kev nyab xeeb ib puag ncig, diatomite qhov zoo tsis muaj qhov sib piv.

Xaus Lus: Diatomite - Ib qho Kev daws teeb meem ntuj rau kev txhim kho niaj hnub

Txij li kev txhawb nqa dej huv thiab kev tsim khoom noj khoom haus zoo mus rau kev tiv thaiv ib puag ncig zoo, los ntawm kev txhim kho kev ua liaj ua teb kom zoo dua qub, diatomite, nrog nws cov keeb kwm ntuj tsim thiab cov khoom siv ntau yam, tau dhau los ua cov khoom siv tseem ceeb hauv zej zog niaj hnub no.

Ua ib lub tuam txhab muab khoom siv uas muaj ntau yam khoom siv hauv av thiab cov thev naus laus zis siab heev, peb tuaj yeem muab cov kev daws teeb meem rau kev lim dej, kev tiv thaiv ib puag ncig, kev tsim kho, kev ua liaj ua teb, thiab lwm yam. Peb cov khoom tau dhau los ntawm kev tshuaj xyuas zoo thiab cov ntawv pov thawj thoob ntiaj teb, ua kom ntseeg tau tias muaj kev ntseeg siab thiab ruaj khov.

Txawm koj xav tau cov khoom siv lim dej rau cov khoom noj, cov khoom nqus dej hauv kev lag luam, cov ntaub ntawv rwb thaiv tsev, lossis cov khoom siv ua liaj ua teb, peb pab neeg mob siab rau muab kev pabcuam rau koj thiab cov qauv dawb los pab koj nrhiav cov khoom diatomite uas haum tshaj plaws. Peb tos ntsoov yuav koom tes nrog koj los tsim kom muaj lub neej yav tom ntej zoo dua, zoo rau ib puag ncig, thiab ruaj khov!