Cov tshuaj dispersants kuj yog surfactants. Muaj cov hom anionic, cationic, nonionic, amphoteric thiab polymeric. Hom anionic siv ntau heev. Cov neeg sawv cev dispersing yog tsim rau cov hmoov lossis caking uas yoo raug dej thiab tuaj yeem ntxiv rau kom zoo loosen thiab tiv thaiv caking yam tsis cuam tshuam rau kev ua haujlwm ntawm lub cev. Nws tuaj yeem siv dav hauv txhua yam khoom noj thiab tshuaj hmoov dispersant, pub tsiaj, ammonium chloride thiab lwm yam chiv dispersant, txheej dispersant, ceramic dispersant, tsis muaj phosphorus detergent, kaolin dispersant, cement additives, ntawv dispersant, circulating dej dispersant thiab scale inhibitor, thiab lwm yam. Cov khoom muaj cov nyhuv zoo tiv thaiv deposition.
Lub luag haujlwm ntawm cov tshuaj dispersant yog siv cov tshuaj dispersant ntub kom txo lub sijhawm thiab lub zog uas yuav tsum tau ua kom tiav cov txheej txheem dispersion, ua kom cov xim dispersed ruaj khov, hloov kho cov yam ntxwv ntawm cov xim, thiab kho qhov txav ntawm cov xim. Cov kev siv tshwj xeeb ntawm cov tshuaj dispersants tau pom nyob rau hauv cov hauv qab no.
1. Rau txhua yam khoom noj thiab tshuaj hmoov, tus dispersant muaj cov nyhuv zoo heev tiv thaiv crystallization, uas tuaj yeem ua kom qhov zoo ntawm cov khoom noj thiab tshuaj tsis hloov pauv ntev, thiab yog tus neeg sawv cev tiv thaiv crystallization zoo heev thiab muaj kev nyab xeeb.
2. Nws yog ib qho tshuaj tiv thaiv kev sib xyaw rau cov tshuaj chiv (tshwj xeeb tshaj yog ammonium chloride, ammonium carbon), uas tuaj yeem ua rau cov tshuaj no nqus tau cov dej noo thiab sib xyaw ua ke thiab ua kom cov khoom zoo thiab siv tau ntev.
3. Ua ib qho dispersant ntawm pigment, nws tuaj yeem paub txog kev sib cuam tshuam ntawm cov khoom no thiab cov xim pigment kom paub txog kev tawg ntawm cov xim thiab xyuas kom meej tias cov xim sib xws.
4. Ua ib qho tshuaj ntxuav tes uas pab tau rau cov tshuaj ntxuav tes ua los ntawm cov khoom siv hluavtaws, cov khoom no muaj lub luag haujlwm ntawm kev faib cov av qias neeg thiab cov av calcium xab npum, chelating ntau cov khoom me me, thiab muaj lub zog nqus tau zoo rau cov av qias neeg. Rau kev txhim kho kev tshem tawm cov av qias neeg ntawm cov tshuaj ntxuav tes, nws yog 5 npaug ntau dua li cov sodium tripolyphosphate feem ntau siv, thiab lub peev xwm faib ntawm calcium xab npum yog 6 npaug ntau dua li sodium tripolyphosphate. Muaj cov nyhuv tiv thaiv kev tso tawm zoo dua, tiv thaiv acid ntau dua li sodium tripolyphosphate.
5. Cov tshuaj scale inhibitor thiab dispersant rau kev txias cov dej ncig tuaj yeem ua kom tsis txhob muaj calcium carbonate, calcium carbonate scale, dispersant tuaj yeem chelate calcium ions, yog li qhov concentration ntawm calcium ions saturation nce ntau zaus, thaum qhov concentration ntawm calcium ions siab heev, kuj tuaj yeem muaj scale precipitation, ntawm qhov chaw ntawm cov nplai me me, tiv thaiv cov nplai los ntawm kev sib sau ua ke los ua cov khoom loj thiab nag lossis daus, txawm tias qhov tsim ntawm cov nplai txheej kuj xoob heev, yooj yim ntxuav los ntawm dej, yog li ua tiav lub hom phiaj ntawm kev tiv thaiv nplai, tshem tawm nplai.
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Lub sijhawm tshaj tawm: Lub Yim Hli-05-2022