Kev lim dej yog ib txoj kev kho mob uas siv ntau heev los tshem tawm cov khoom tsis yaj hauv cov kua. Vim tias cov khoom khov hauv cov kua feem ntau yog cov khoom me me, tsis muaj zog, nplaum, thiab yooj yim thaiv cov qhov ntawm daim ntaub lim. Yog tias lim cais, feem ntau yuav muaj teeb meem xws li kev nyuaj rau kev lim thiab cov lim tsis meej, uas siv tsis tau. Yog tias ntxiv cov khoom pab lim rau hauv cov tshuaj lossis ib txheej ntawm cov khoom pab lim tau coated ua ntej rau ntawm daim ntaub lim, nws tuaj yeem txhim kho qhov xwm txheej no. Qhov ceev ntawm kev lim yog ceev, cov khoom lim yog pob tshab, thiab cov seem lim yog nruj heev, uas tuaj yeem tawm ntawm daim ntaub lim. Cov khoom pab lim feem ntau siv hauv ntau yam lag luam yog diatomaceous earth. Qhov ntawd yog qhov peb feem ntau hu ua diatomaceous earth filter aids.

Cov khoom siv lim dej diatomaceous yog ib hom tshiab ntawm cov hmoov lim dej ua haujlwm siab uas tsim thiab ua tiav siv cov av diatomaceous ua cov khoom siv raw los ntawm kev ua tiav kaw tas mus li xws li kev kho ua ntej, kev cais, kev sib xyaw, kev calcination, thiab kev ntsuas qib. Nws tuaj yeem tsim cov qauv lim dej lattice ruaj khov, uas tuaj yeem cuam tshuam cov khoom me me hauv cov kua lim ua ntej mus rau hauv cov khoom tsis huv colloidal ntawm lub cev pob txha lattice. Yog li ntawd, nws muaj permeability zoo thiab muab cov qauv lim dej porous, nrog porosity ntawm 85-95%, uas tuaj yeem ua tiav qhov sib piv siab hauv cov txheej txheem sib cais ntawm cov khoom khov thiab kua, thiab tuaj yeem lim cov khoom khov zoo. Cov khoom siv lim dej diatomaceous muaj kev ruaj khov tshuaj zoo thiab tuaj yeem siv tau zoo rau kev lim dej ntawm txhua yam kua tshwj tsis yog cov kua caustic concentrated. Lawv tsis ua rau cov kua lim dej puas tsuaj thiab ua raws li cov qauv ntawm Txoj Cai Huv Huv Khoom Noj. Thiab nws tuaj yeem siv tau zoo rau cov xov xwm xws li daim ntaub lim dej, daim ntawv lim dej, hlau hlau mesh, porous ceramics, thiab lwm yam. Nws tuaj yeem ua tiav cov txiaj ntsig lim dej zoo ntawm ntau lub tshuab lim dej thiab muaj qhov zoo ntawm lwm cov xov xwm lim dej. Kev siv cov khoom siv lim dej diatomaceous earth tau dav zuj zus. Siv rau hauv kev lag luam los ua cov khoom siv lim dej. Siv rau hauv kev lag luam zaub mov rau kev lim dej npias, dej txiv hmab txiv ntoo, kua txiv hmab txiv ntoo, ntau yam dej haus, kua txiv hmab txiv ntoo, roj zaub, kev npaj enzyme, citric acid, thiab lwm yam. Siv rau hauv kev lag luam tshuaj lom neeg rau kev lim cov xim pleev xim, txheej txheej, electroplating, cov kuab tshuaj, cov kua qaub, electrolytes, cov resins hluavtaws, cov tshuaj fiber, glycerol, emulsion, thiab lwm yam. Siv rau hauv kev lag luam tshuaj rau kev lim cov tshuaj tua kab mob, glucose, thiab cov tshuaj ntsuab Suav. Hais txog kev tiv thaiv ib puag ncig, nws yog siv rau kev kho dej kom huv cov dej hauv nroog, dej ua luam dej, dej phwj tuaj, dej khib nyiab hauv kev lag luam, thiab lwm yam.

1. Kev pab lim dej diatomaceous earth: Nws yog ib hom kev pab lim dej diatomaceous earth uas tsim los ntawm kev ziab, calcination, kev rhuav tshem, thiab kev ntsuas qib, uas siv tau rau ntau yam kev sib cais kua-khoom. Ntau hom kev pab lim dej diatomaceous earth raug xaiv rau ntau yam kev sib cais kua-khoom. Siv dav hauv kev npaj. Ntau pawg siv cov qauv porous ntawm diatomaceous earth thiab silica plhaub. Thaum lub sijhawm ua tiav, yuav tsum tau them sai sai rau kev tswj cov qauv thiab cov duab tshwj xeeb ntawm diatomaceous pob txha, ua tib zoo xaiv cov khoom siv sib tsoo thiab sib tsoo thiab cov xwm txheej kev siv tshuab, thiab tswj kev ncaj ncees ntawm cov qauv diatomaceous ntau li ntau tau kom tiv thaiv kev sib cais thib ob. Cov khoom siv sib tsoo feem ntau siv yog lub tshuab cua tshuab.
2. Peb lub luag haujlwm tseem ceeb ntawm kev pab lim dej diatomaceous yog: 1. Kev tshuaj ntsuam xyuas. Qhov no yog qhov cuam tshuam ntawm kev lim dej saum npoo av. Thaum cov kua dej ntws los ntawm diatomaceous av, cov qhov hws ntawm diatomaceous av me dua li qhov loj me ntawm cov khoom tsis huv, yog li cov khoom tsis huv tsis tuaj yeem hla dhau thiab raug cuam tshuam. Cov nyhuv no hu ua kev tshuaj ntsuam xyuas. 2. Thaum lub sijhawm lim dej tob, cov txheej txheem sib cais tshwm sim hauv nruab nrab, nrog rau qee cov khoom me me hla dhau ntawm qhov chaw ntawm lub ncuav mog qab zib lim dej raug thaiv los ntawm cov qhov hws hauv lub ntiaj teb diatomaceous. Lub peev xwm los lim cov khoom khov kho yog qhov cuam tshuam nrog qhov loj me thiab cov duab ntawm cov khoom khov kho thiab cov qhov hws.
3, Adsorption hais txog kev tsim cov saw hlau ntawm cov khoom me me uas raug rub los ntawm cov nqi sib txawv, yog li ntawd nws thiaj li lo rau lub ntiaj teb diatomaceous.