Raw Khoom tuav thiab npaj
Cov ntaub ntawv tseem ceeb rau cov kua sodium silicate ntau lawm yog silica (SiO2) thiab sodium carbonate (Na2CO3). Cov nroj tsuag feem ntau khaws cov ntaub ntawv no hauv silos lossis tso tsheb hlau luam. Cov ntaub ntawv tau ua tib zoo ntsuas thiab thauj mus rau hauv lub digester, uas yog lub zog reactor uas muaj tshuaj lom neeg tshwm sim. Hauv qee cov txheej txheem, caustic soda (NaOH) kuj tseem siv tau los hloov cov sodium carbonate los hloov cov khoom ntawm cov khoom kawg.
Tshuaj Reaction hauv Digester
Lub hauv paus ntawm cov txheej txheem yuav siv qhov chaw nyob rau hauv lubdigester, loj, siab-siab reactor. Nyob rau hauv lub digester, cov ntaub ntawv raw yog tov nrog dej thiab rhuab mus rau qhov kub siab heev, feem ntau ntawm 150 degree mus rau 200 degree, nyob rau hauv siab li ntawm 6 mus rau 10 bar. Thaum lub sij hawm no, cov silica reacts nrog sodium carbonate los yog sodium hydroxide nyob rau hauv kev tswj kom tsim sodium silicate. Cov tshuaj tiv thaiv tuaj yeem sawv cev los ntawm kev sib npaug tshuaj lom neeg hauv qab no:
Na2CO3 + SiO2 → Na2SiO3 + CO2
Cov khoom tsim tau yog cov tshuaj sodium silicate. Cov khoom ntawm cov tshuaj no, suav nrog nws cov concentration thiab qhov sib piv ntawm sodium oxide rau silica, tuaj yeem hloov kho raws li qhov xav tau ntawm cov khoom kawg. Cov piv txwv no, feem ntau hu ua "silica modulus," txiav txim siab viscosity, solubility, thiab tshuaj reactivity ntawm cov kua sodium silicate.
Thaum tshav kub kub thiab siab tswj
Cov txheej txheem ntau lawm hauv lub tshuab nqus tsev yog nyob ntawm kev tswj xyuas qhov tseeb ntawm qhov kub thiab txias. Cov cua sov feem ntau yog ua tiav los ntawm chav, uas yog nkag mus rau hauv lub kaw lus kom tswj tau qhov tsim nyog kub kub rau cov tshuaj tiv thaiv tshwm sim. Lub digester yuav tsum muaj zog thiab tsim los tiv thaiv kev kub ntxhov thiab kub kub kom ntseeg tau tias kev nyab xeeb thiab kev ua haujlwm ntawm kev ua haujlwm. Cov txheej txheem ua kom txias txias kuj tseem nyob rau hauv qhov chaw kom txo qhov kub ntawm cov khoom tom qab cov tshuaj tiv thaiv tiav.
Lim thiab Purification
Thaum cov tshuaj tiv thaiv nyob rau hauv lub digester tiav lawm, cov kua sodium silicate feem ntau lim kom tshem tawm tej undissolved khib nyiab los yog impurities uas tej zaum yuav tseem tshuav los ntawm raw cov ntaub ntawv. Cov tshuab lim kom paub meej tias cov khoom kawg yog dawb huv thiab tsis muaj cov khoom siv, uas yog ib qho tseem ceeb rau cov ntawv thov uas yuav tsum tau muaj purity siab, xws li hauv cov tshuaj ntxuav tes lossis cov nplaum.
Cia thiab tuav
Tom qab pom, cov kua sodium silicate yog pumped rau hauv lub tso tsheb hlau luam qhov chaw uas nws yog khaws cia nyob rau hauv ib tug tswj kub los tiv thaiv solidification los yog hloov nyob rau hauv viscosity. Cov tso tsheb hlau luam no feem ntau insulated los tswj cov kev daws teeb meem hauv nws daim ntawv ua kua zoo. Raws li cov neeg siv khoom xav tau, cov kua sodium silicate tuaj yeem ntxiv diluted lossis concentrated ua ntej xa mus rau hauv cov thawv thauj khoom lossis ncaj qha rau cov neeg siv khoom hauv ntau.
FAQ:
1.Dab tsi yog cov ntaub ntawv tseem ceeb siv hauv kev tsim cov kua sodium silicate?
Cov ntaub ntawv tseem ceeb rau cov kua sodium silicate ntau lawm yog silica (SiO2) thiab sodium carbonate (Na2CO3). Qee zaum, caustic soda (NaOH) kuj tuaj yeem siv los hloov pauv cov khoom ntawm cov khoom kawg.
2.Yuav ua li cas cov tshuaj tiv thaiv nyob rau hauv cov kua sodium silicate digester?
Cov ntaub ntawv raw, silica thiab sodium carbonate, yog tov nrog dej thiab rhuab nyob rau hauv ib tug high-pressure digester ntawm kub ntawm 150 degree mus rau 200 degree. Nyob rau hauv lub siab xws li 6 mus rau 10 bar, cov ntaub ntawv react los tsim sodium silicate.
3.Dab tsi yog lub luag haujlwm ntawm qhov kub thiab txias tswj kev ua haujlwm hauv kev tsim cov kua sodium silicate?
Kev tswj xyuas qhov kub thiab txias yog qhov tseem ceeb hauv kev tsim khoom. Cov tshuaj tiv thaiv tshwm sim nyob rau hauv qhov kub thiab txias, feem ntau ua tiav siv chav. Qhov kev tswj xyuas no ua kom qhov ua tau zoo ntawm cov tshuaj tiv thaiv thiab kev nyab xeeb ntawm kev ua haujlwm.
4.Yuav ua li cas yog lub purity ntawm cov kua sodium silicate guaranteed tom qab cov tshuaj tiv thaiv?
Tom qab cov tshuaj tiv thaiv nyob rau hauv lub digester, cov kua sodium silicate undergos pom kom tshem tawm tej undissolved khib nyiab los yog impurities. Cov kauj ruam no yog qhov tseem ceeb los xyuas kom meej tias muaj cov ntshiab ntshiab sodium silicate rau kev lag luam xws li detergents thiab adhesives.
5.Dab tsi yog qhov tseem ceeb ntawm "silica modulus" hauv cov kua sodium silicate ntau lawm?
"silica modulus" yog hais txog qhov piv ntawm sodium oxide rau silica hauv cov kua sodium silicate. Qhov piv no txiav txim siab qhov viscosity, solubility, thiab tshuaj reactivity ntawm cov khoom kawg, thiab nws tuaj yeem hloov kho raws li cov kev xav tau tshwj xeeb ntawm cov neeg siv khoom.
6.Yuav ua li cas yog cov kua sodium silicate khaws cia thiab tuav tom qab ntau lawm?
Thaum lim, cov kua sodium silicate yog khaws cia rau hauv cov tso tsheb hlau luam ntawm qhov ntsuas kub kom tsis txhob muaj kev sib tw lossis kev hloov pauv hauv viscosity. Nws kuj tseem yuav tau diluted lossis concentrated raws li cov neeg siv khoom xav tau ua ntej xa khoom.
7.Vim li cas filtration tseem ceeb hauv cov txheej txheem ua kua sodium silicate?
Lim yog ib qho tseem ceeb kom tshem tawm impurities thiab undissolved solids los ntawm cov khoom kawg. Cov kauj ruam no ua kom cov khoom lag luam siab purity, uas yog qhov tseem ceeb rau kev lag luam uas xav tau qhov tseeb thiab zoo, xws li cov nplaum thiab cov tshuaj ntxuav tes.
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