Ua hauj lwm hauv paus ntsiab lus ntawm Diatomite Filter Aid
Lub luag haujlwm ntawm cov khoom siv lim dej yog hloov pauv lub xeev sib sau ua ke ntawm cov khoom, yog li hloov pauv qhov loj me ntawm cov khoom hauv cov lim. Diatomite Filter Aidare tsuas yog tsim los ntawm cov tshuaj lom neeg ruaj khov SiO2, nrog ntau sab hauv micropores, tsim ntau yam haujlwm nyuaj. Thaum lub sij hawm filtration txheej txheem, diatomaceous lub ntiaj teb ua ntej tsim ib tug ntxeem tau lim pab nruab nrab (pre txheej) ntawm lub lim phaj. Thaum cov filtrate dhau los ntawm kev pab lim, cov khoom siv hauv qhov raug tshem tawm ua rau lub xeev sib sau ua ke, thiab qhov loj me hloov pauv. Cov impurities ntawm cov khoom loj yog ntes thiab khaws cia rau ntawm qhov chaw nruab nrab, tsim cov txheej nqaim me me. Lawv txuas ntxiv thaiv thiab ntes cov khoom uas muaj qhov sib xws, maj mam tsim cov ncuav mog qab zib lim nrog qee qhov pores. Raws li kev pom zoo zuj zus, impurities nrog me me particle loj maj mam nkag mus rau hauv cov ntxeem tau diatomaceous lub ntiaj teb lim pab nruab nrab thiab cuam tshuam. Vim tias lub ntiaj teb diatomaceous muaj qhov porosity ntawm li 90% thiab thaj chaw loj tshwj xeeb, thaum cov khoom me me thiab cov kab mob nkag mus rau sab hauv thiab sab nraud ntawm cov lim pab, lawv feem ntau cuam tshuam vim adsorption thiab lwm yam laj thawj, uas tuaj yeem txo 0.1 μ Cov. Kev tshem tawm cov khoom zoo thiab cov kab mob los ntawm m tau ua tiav cov txiaj ntsig zoo. Qhov ntau npaum ntawm lim pab feem ntau yog 1-10% ntawm cov khoom loj cuam tshuam. Yog tias qhov ntau npaum li cas siab dhau lawm, nws yuav cuam tshuam rau kev txhim kho kev pom ceev.
Cov nyhuv lim
Cov nyhuv pom ntawm Diatomite Filter Aid yog ua tiav los ntawm peb yam hauv qab no:
1. Kev tshuaj ntsuam xyuas
Qhov no yog cov nyhuv pom ntawm qhov chaw, qhov twg thaum cov kua ntws los ntawm lub ntiaj teb diatomaceous, qhov pores ntawm lub ntiaj teb diatomaceous yog me dua li qhov me me ntawm cov impurity hais, yog li cov impurity hais tsis tuaj yeem hla thiab cuam tshuam. Cov nyhuv no hu ua sieving. Qhov tseeb, qhov saum npoo ntawm lub ncuav mog qab zib lim tuaj yeem suav tias yog lub ntsej muag sieve nrog qhov sib npaug nruab nrab qhov pore loj. Thaum txoj kab uas hla ntawm cov khoom tsis yog tsawg dua (lossis tsawg dua) lub pore txoj kab uas hla ntawm lub ntiaj teb diatomaceous, cov khoom siv yuav raug "tsim" tawm ntawm qhov raug ncua, ua lub luag haujlwm hauv qhov pom ntawm qhov chaw.
2. Cov nyhuv tob
Cov nyhuv tob yog qhov khaws cia ntawm qhov pom tob. Hauv kev sib sib zog nqus pom, cov txheej txheem sib cais tsuas yog tshwm sim hauv nruab nrab. Qee qhov me me impurity uas dhau los ntawm qhov chaw ntawm lub ncuav mog qab zib lim yog obstructed los ntawm winding microporous raws hauv lub ntiaj teb diatomaceous thiab cov pores me me hauv lub ncuav mog qab zib lim. Cov khoom no feem ntau me dua li cov micropores hauv lub ntiaj teb diatomaceous. Thaum cov khoom sib tsoo nrog cov phab ntsa ntawm cov channel, nws muaj peev xwm tshem tawm ntawm cov kua dej. Txawm li cas los xij, seb lawv puas tuaj yeem ua tiav qhov no yog nyob ntawm qhov sib npaug ntawm lub zog inertial thiab tsis kam ntawm cov khoom. Qhov kev cuam tshuam thiab kev tshuaj ntsuam xyuas no zoo sib xws hauv qhov xwm txheej thiab koom nrog kev ua haujlwm kho tshuab. Lub peev xwm los lim tawm cov khoom siv yog qhov tseem ceeb tsuas yog cuam tshuam nrog qhov sib txheeb loj thiab cov duab ntawm cov khoom thiab qhov pores.
3. Cov nyhuv adsorption
Cov nyhuv adsorption yog txawv kiag li ntawm ob lub tshuab lim tau hais los saum toj no, thiab cov nyhuv no tuaj yeem pom tau tias yog electrokinetic attraction, uas feem ntau yog nyob ntawm cov khoom ntawm cov khoom thiab cov diatomaceous lub ntiaj teb nws tus kheej. Thaum cov khoom me me nrog cov pores sib tsoo nrog lub npoo ntawm lub ntiaj teb ntxeem tau diatomaceous, lawv tau nyiam los ntawm cov nqi sib txawv los yog tsim cov saw hlau los ntawm kev sib koom ua ke ntawm cov khoom thiab ua raws li lub ntiaj teb diatomaceous, tag nrho cov uas yog adsorption. Cov nyhuv adsorption yog qhov nyuaj dua li thawj ob, thiab nws feem ntau ntseeg tias yog vim li cas cov khoom siv nrog cov pore me me yog cuam tshuam vim yog:
(1) Intermolecular rog (tseem hu ua van der Waals attraction), suav nrog kev sib cuam tshuam ntawm dipole mus tas li, kev cuam tshuam ntawm dipole, thiab kev sib cuam tshuam dipole tam sim ntawd;
(2) Lub neej ntawm Zeta muaj peev xwm;
(3) Ion txauv txheej txheem.
Post lub sij hawm: Apr-01-2024